Mitel SME Server V5 User Manual

SME Server V5 with ServiceLink

User Manual

Mitel Networks Corporation

SME Server V5 with ServiceLink: User Manual

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, one Front-Cover Text: "Not Endorsed by Mitel Networks Corporation", and one Back-Cover Text:"Forthe ofﬁcial SME Server V5 with ServiceLink manual, visit http://www.e-smith.org/docs/manual/ (http://www.e-smith.org/docs/manual/)"Permission is granted for production of verbatim copies without the cover texts. A copy of the GNU Free Documentation License is available on our web site at http://www.e-smith.org/docs/gfdl.html(http://www.e-smith.org/docs/gfdl.html) and from the Free Software Foundation at http://www.fsf.org/copyleft/fdl.html (http://www.fsf.org/copyleft/fdl.html).

The Mitel logo and the terms "information bay" and "i-bay" are trademarks or registered trademarks of Mitel Networks Corporation in the United States and other countries. Linux is a registered trademark of Linus Torvalds. The terms "ssh" and "Secure Shell" are trademarks of SSH Communications Security Corp. Trend Micro is a registered trademark of Trend Micro Incorporated. All other trademarks are the property of their respective holders. $Revision: 1.134 $

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+1-613-564-7739 info@e-smith.com

Table of Contents

1. Welcome to your SME Server V5 with ServiceLink .......................................................................................................................6

1.1. About This Guide....................................................................................................................................................................6

1.2. Software Licensing Termsand Conditions .............................................................................................................................7

1.3. About Our TestCompany: The Pagan Vegan.........................................................................................................................7

1.4. What’s New.............................................................................................................................................................................7

2. The role of the SME Server V5 .........................................................................................................................................................9

3. ServiceLink........................................................................................................................................................................................11

4. Your Internet Service Provider (ISP)..............................................................................................................................................14

4.1. Dedicated versus dialup connectivity ...................................................................................................................................14

4.2. The IP address.......................................................................................................................................................................14

4.3. Arranging connectivity with your ISP ..................................................................................................................................15

4.4. Arranging Services From Your ISP ......................................................................................................................................19

5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer..................................................................23

5.1. Hardware Requirements for a Category 1 Server .................................................................................................................23

5.2. Hardware Requirements for a Category 2 Server .................................................................................................................24

5.3. Hardware Requirements for a Category 3 Server .................................................................................................................25

5.4. Hardware Requirements for a Category 4 Server .................................................................................................................25

5.5. Supported Ethernet Adapters................................................................................................................................................26

5.6. Supported SCSI Adapters.....................................................................................................................................................29

5.7. Supported Tape Drives..........................................................................................................................................................30

6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software ..........................................................................32

6.1. Licensing Terms and Conditions ..........................................................................................................................................32

6.2. RAID1 Support (Disk Mirroring).........................................................................................................................................32

6.3. Upgrading From A Previous Version....................................................................................................................................33

6.4. Installing the Software..........................................................................................................................................................33

6.5. Conﬁguring your SME Server V5 with ServiceLink............................................................................................................34

6.6. Setting YourAdministrator Password...................................................................................................................................35

6.7. Conﬁguring YourSystem Name and Domain Name............................................................................................................35

6.8. Conﬁguring YourLocal Network .........................................................................................................................................36

6.9. Operation Mode ....................................................................................................................................................................38

6.10. Conﬁguring Server and Gateway Mode..............................................................................................................................40

6.11. Server and Gateway Mode - Dedicated ..............................................................................................................................41

6.12. Conﬁguring the Server for Server and Gateway Mode - Dialup Access............................................................................44

6.13. Conﬁguring YourDHCP Server .........................................................................................................................................46

6.14. Further Miscellaneous Parameters......................................................................................................................................48

7. The Server Console...........................................................................................................................................................................50

7.1. Using the Text-basedBrowser..............................................................................................................................................50

7.2. Accessing the Linux Root Prompt........................................................................................................................................51

8. Conﬁguring the Computers on YourNetwork...............................................................................................................................52

8.1. What Order to do Things ......................................................................................................................................................52

8.2. Conﬁguring YourDesktop Operating System ......................................................................................................................52

8.3. IMAP versus POP3 e-mail....................................................................................................................................................55

8.4. Conﬁguring YourE-mail Application...................................................................................................................................56

8.5. Conﬁguring YourWebBrowser............................................................................................................................................57

8.6. Conﬁguring YourCompany Directory..................................................................................................................................58

9. On-going Administration Using the server manager....................................................................................................................60

10. Security............................................................................................................................................................................................62

10.1. Password .............................................................................................................................................................................62

10.2. Remote Access....................................................................................................................................................................62

10.3. Local networks....................................................................................................................................................................66

11. Conﬁguration ..................................................................................................................................................................................68

11.1. Set date and time.................................................................................................................................................................68

11.2. Workgroup ..........................................................................................................................................................................69

11.3. Directory .............................................................................................................................................................................70

11.4. Printers ................................................................................................................................................................................71

11.5. Hostnames and addresses....................................................................................................................................................72

11.6. E-mail Retrieval..................................................................................................................................................................75

11.7. Other E-mail Settings..........................................................................................................................................................77

11.8. Review Conﬁguration.........................................................................................................................................................78

12. Collaboration ..................................................................................................................................................................................80

12.1. User Accounts.....................................................................................................................................................................80

12.2. Groups.................................................................................................................................................................................81

12.3. Pseudonyms ........................................................................................................................................................................82

12.4. Information Bays ................................................................................................................................................................83

12.5. Virtual Domains..................................................................................................................................................................83

13. ServiceLink......................................................................................................................................................................................85

13.1. Status...................................................................................................................................................................................85

13.2. Virus Protection ..................................................................................................................................................................86

13.3. DNS Services......................................................................................................................................................................87

13.4. IPSEC VPNs.......................................................................................................................................................................88

14. Administration................................................................................................................................................................................90

14.1. Blades..................................................................................................................................................................................90

14.2. Backup or Restore...............................................................................................................................................................90

14.3. Reinstallation Disk..............................................................................................................................................................93

14.4. Mail Log File Analysis .......................................................................................................................................................94

14.5. View Log Files....................................................................................................................................................................94

14.6. Reboot or Shutdown ...........................................................................................................................................................95

15. Miscellaneous ..................................................................................................................................................................................96

15.1. Online manual.....................................................................................................................................................................96

15.2. Create Starter WebSite.......................................................................................................................................................96

15.3. Support and Licensing ........................................................................................................................................................96

15.4. Other Administration Notes................................................................................................................................................97

16. Information Bays (i-bays)..............................................................................................................................................................98

16.1. i-bay Directories..................................................................................................................................................................99

16.2. Accessing the i-bays ...........................................................................................................................................................99

16.3. Creating an i-bay...............................................................................................................................................................100

16.4. An i-bay Used as a Customer Site: The Miles Gabriel Art Exposition ............................................................................101

16.5. An i-bay Used as a Shared Network Drive.......................................................................................................................103

16.6. An i-bay Used as an Intranet: The Pagan Vegan "Vegemite" ...........................................................................................104

16.7. An i-bay Used to Expedite Processes: Samson’s Farms...................................................................................................105

16.8. An i-bay Used as Your Customer Download Site.............................................................................................................107

17. User File Storage on the SME Server V5 with ServiceLink .....................................................................................................109

17.1. Windows ...........................................................................................................................................................................109

17.2. Macintosh OS....................................................................................................................................................................110

18. Webmail.........................................................................................................................................................................................113

18.1. Enabling Webmail On Your System .................................................................................................................................113

18.2. Starting Webmail ..............................................................................................................................................................113

18.3. Logging In.........................................................................................................................................................................114

18.4. Viewing The Inbox............................................................................................................................................................114

18.5. Logging Out of Webmail ..................................................................................................................................................115

18.6. Composing Messages........................................................................................................................................................115

18.7. Reading Messages.............................................................................................................................................................116

18.8. Deleting Messages ............................................................................................................................................................117

18.9. Using Contacts..................................................................................................................................................................118

18.10. Changing Webmail Preferences......................................................................................................................................120

19. Additional Software......................................................................................................................................................................122

A. Introduction to the Ethernet Local Area Network (LAN).........................................................................................................123

B. Dynamic DNS Services..................................................................................................................................................................124

C. Proxy Servers .................................................................................................................................................................................125

D. Technical Support..........................................................................................................................................................................126

E. ServiceLink End User License Agreement..................................................................................................................................127

F. GNU General Public License........................................................................................................................................................131

Chapter 1. Welcome to your SME Server V5 with ServiceLink

Congratulations on choosing the SME Server V5 with ServiceLink as your communications server! Companies all over the world are using the Internet to communicate more effectively and efﬁciently to a broader audience. The SME

Server V5 with ServiceLink is founded upon state of the art technologies - such as the Linux operating system - which have been mainstays in the infrastructure of larger organizations for several years. Mitel Networks Corporation has customized these technologies to make them straightforward to use, while still giving you local control over your Internet services. The result is a cost-effectiveInternet infrastructure that will reliably serve your organization as it grows and as its use of the Internet evolves.

In keeping with our commitment to open source software, we encourage you to share this software with your friends and colleagues. Mitel Networks Corporation and its Authorized Partners provide reasonably priced services, including technical support, to those organizations wanting the comfort of knowing that expert help is available when needed. Contact us at +1-888-ESMITH-1 or +1-613-564-8000, or visit our website, http://www.e-smith.com/, for a list of Authorized Partners and for more information about support options, reseller programs and the worldwide community of server developers and customers.

1.1. About This Guide

This user’s guide walks you step-by-step through the straightforward process of installing and conﬁguring your SME Server V5 with ServiceLink. The Appendices in the back of the guide provide background information on subjects related to networking and the Internet and are intended to supplement chapters in the main section of the user’s guide.

1.1.1. Production

Wecreated this user’s guide using Docbook (http://docbook.org/) on the Linux operating system. Images were created using The GIMP (http://gimp.org/).

The HTML version of this manual was generated from DocBook XML using libxslt (http://www.xmlsoft.org/XSLT/) with customized XSLT stylesheets. More information about our documentation process is available at http://www.e-smith.org/docs/ Most of the editing was done by Dan York and Kirrily "Skud" Robert using the vim (http://www.vim.org/)editor.

1.1.2. History

• August 2001 - First print edition of the SME Server V5 with ServiceLink user’s guide published by Mitel Networks Corporation.

Also published online in HTML and DocBook XML/SGML. Available at http://www.e-smith.org/docs/manual/5.0/ Primary author/editor Dan York.

• February 13, 2001 - e-smith server and gateway user’s manual for version 4.1 published online in HTML and DocBook SGML

by e-smith, inc. Available at http://www.e-smith.org/docs/manual/4.1/ Primary author/editor Dan York.

• December 4, 2000 - e-smith server and gateway user’s manual for version 4.0 published online in HTML and DocBook SGML

by e-smith, inc. Available at http://www.e-smith.org/docs/manual/4.0/

• July 2000 - e-smith server and gateway user’s manual for version 4.0 published in print form by e-smith, inc. PDF and PostScript

versions also made available via FTP at ftp://ftp.e-smith.net/pub/e-smith/e-smith-4.0/. Primary author/editor Ross Laver using StarOfﬁce 5.1.

Chapter 1. Welcome to your SME Server V5 with ServiceLink

• November 1999 - e-smith server and gateway user’s manual for version 3.1 published in print form by e-smith, inc. Primary

author Kim Morrison using StarOfﬁce 5.1.

1.1.3. Endorsements

This is the ofﬁcial documentation for SME Server V5 with ServiceLink and is endorsed by Mitel Networks Corporation

1.1.4. Acknowledgements

Mitel Networks Corporation wishes to thank all of the developers in the open source community who continue to help us make our product better.

Wealso thank Craig Foster and Paul Miller for their help in documenting Macintosh connectivity.

1.2. Software Licensing Terms and Conditions

The SME Server V5 with ServiceLink is licensed for an individual server under the terms of the ServiceLink End User License Agreement found in Appendix E. Acceptance of this agreement is required during the software installation.

The SME Server V5 with ServiceLink kit also includes software that is distributed under the terms of the GNU General Public License or other open source licenses. SME Server V5 users may copy and redistribute this software. The text of the GPL license may be found on the web at http://www.fsf.org/copyleft/gpl.html or in Appendix F. The applicable license for each software module is speciﬁcally identiﬁed and can be seen by running the rpm -qiv packagename command, from the command line, or is listed on our development web site at http://www.e-smith.org/

If you have acquired the March Networks SME Server V5 by means other than purchasing a Mitel Networks commercial offering through an Authorized Partner, it is unsupported. For further information and available options, please contact an Authorized Partner. A list of Authorized Partners can be found at http://www.mitel.com/sme/.

1.3. About Our Test Company: The Pagan Vegan

In this user’s guide, we use examples of a catering and event-planning company, The Pagan Vegan or TPV, that conﬁgures, administers and makes use of their server. As far as we know, no company of this name exists.

1.4. What’s New

For the most complete list of information about changes that have been made in SME Server V5 with ServiceLink, see the release notes that accompany your software.

Chapter 1. Welcome to your SME Server V5 with ServiceLink

1.4.1. ServiceLink

With the release of SME Server V5 with ServiceLink, Mitel Networks Corporation is also introducing ServiceLink, a suite of network-delivered services that extend the functionality of the server. These include:

• 24x7 Alerts and Reporting - Provides round-the-clock monitoring of your SME Server V5 with ServiceLink and your Internet

connection alerting you or your Authorized Partner when there are problems, and compiling monthly performance reports.

• Virus Protection - Automates the downloading and installation of up-to-date virus pattern ﬁles and ensures that all e-mail

messages and attachments are scanned for the latest known threats.

• Guaranteed E-mail - Should your Internet connection fail for any reason, mail destined for your server will be held by our

Network Operations Center (NOC) until such time as it can be delivered successfully.

• DNS Services - Allows users to publish up-to-date DNS records via the Mitel Networks NOC, ensuring that their domain name

remains accessible to the world.

• IPSEC VPN Service - Provides a fast, easy way of linking multiple servers together into a larger network using the secure IPSEC

standard.

Each of the services is described in more detail in the chapter entitled "ServiceLink".

1.4.2. Blades

SME Server V5 with ServiceLink introduces support for blades, a new way of customizing your server. Blades allow you to easily install or remove software modules via the server manager. The section in the Administration chapter on "Blades", describes this feature.

1.4.3. Administration

• New manager panel for viewing log ﬁles - allows you to easily view system log ﬁles and ﬁlter for speciﬁc information.

• Private server and gateway mode - this new server operation mode allows you to use the server’s gateway functionality but not

publish any public services.

• Hostnames and addresses panel - provides more options in the conﬁguration of DNS and host entries.

• Ability to disable user accounts - you can nowdisable, but not delete, a user account to temporarily restrict access to that account.

• server manager interface - the web-based server manager has been refreshed with a cleaner look.

• Secure access to server manager - you can now connect to the server manager using the secure HTTPS protocol.

• New URL for server manager - The URL is now http://www.domainname.xxx/server-manager instead of

http://www.domainname.xxx/e-smith-manager.

• New URL for setting user passwords - The URL is now http://www.domainname.xxx/user-password instead of

http://www.domainname.xxx/e-smith-password.

• Ability to verify desktop backups - you can now check the integrity of a backup to your desktop.

Chapter 2. The role of the SME Server V5

Your SME Server V5 with ServiceLink manages your connection to the Internet by routing Internet data packets to and from your network (which allows all the computers on your network to share a single Internet connection) and by providing security for your network, minimizing the risk of intrusions.

When one of your local computers contacts the Internet, or is contacted by an outside machine on the Internet, the SME Server V5 with ServiceLink not only routes that connection, but seamlessly interposes itself into the communication. This prevents a direct connection from being established between an external computer on the Internet and a computer on your local network thereby signiﬁcantly reducing the risk of intrusion onto your network.

Your server also provides services - including e-mail, web access and a powerful ﬁle sharing and collaboration feature called "i-bays"

- that allow you to communicate better internally and with the rest of the world using the Internet. Throughout this user’s guide, the word gateway is used to mean the computer that acts as the interface between your local, internal

network and the external world.

If you prefer, you can also run your SME Server V5 with ServiceLink in "server-only" mode. In "server-only" mode, your server provides your network with services, but not the routing and security functions associated with the role of "gateway". The server-only mode is typically used for networks already behind a ﬁrewall. In that conﬁguration, the ﬁrewall fulﬁlls the role of gateway, providing routing and network security.

Once installed, your SME Server V5 with ServiceLink can be conﬁgured and managed remotely. Routine administration is handled from your desktop using a web-based interface, so only on rare occasions will you require direct access to the server computer. Once installation is complete, most customers put the server in an out-of-the-way place like a utility closet. If you wish, you can disconnect the keyboard and monitor. (Note that some computers may not operate correctly without an attached keyboard.)

Chapter 2. The role of the SME Server V5

More About Ethernets

Appendix A: Introduction to the Ethernet Local Area Network (LAN), brieﬂy explains ethernets, ethernet components and typical ethernet conﬁguration.

Chapter 3. ServiceLink

With SME Server V5 with ServiceLink, Mitel Networks Corporation has introduced a suite of integrated network services ServiceLink - that extend and enhance the functionality of your server. ServiceLink maximizes the security, performance and reliability of your server through real-time interaction with the Mitel Networks NOC . You can register for ServiceLink by contacting any Mitel Networks Corporation Authorized Partner (please see our website for the name of an Authorized Partner near you) and choosing a subscription plan that meets your needs.

Until you register for ServiceLink, the links to pages in the server manager will take you to panels that are not active. If you would like to enable these services, please visit http://www.e-smith.com/.

Note: If your server is behind an additional ﬁrewall, that ﬁrewall will need to be conﬁgured to allow outbound SSH packets on TCP port 22 in order for ServiceLink to function.

ServiceLink provides the following services:

• 24x7 Alerts and Reporting

This service provides round-the-clock monitoring of your server and your Internet connection. By default, your server will synchronize with our NOC once each hour. (This can be customized by your Mitel Authorized Partner.) If the server fails to check in, an alert is sent to your Authorized Partner and, if desired, your network administrator.

In addition, Mitel Networks Corporation compiles monthly reports summarizing all ServiceLink activity for your Mitel Authorized Partner who in turn can share the information with you. These reports include such details as network performance, e-mail delivery problems and viruses detected. Among other things, this information can help you and your partner assess the reliability and quality of your Internet connection. It can also assist in analyzing the security of your network.

• Virus Protection

This service provides automatic setup and conﬁguration of e-mail virus-scanning services. Your server includes special virus-scanning software. When you subscribe to ServiceLink, your Authorized Partner will activate this special software. Your server will then download the latest virus pattern ﬁles from the Mitel Networks NOC. All e-mail messages and attachments received from that point on will be scanned for viruses. In the event that a virus is found, the message will not be delivered. Instead, the sender, all intended recipients and your Mitel Authorized Partner will be notiﬁed of the virus. The message itself will be quarantined in a special mailbox where the administrator can examine the message and determine what to do with it.

Virus pattern ﬁles contain the information required to accurately identify viruses. As new viruses are detected, anti-virus software manufacturers update their pattern ﬁles. Your server’s virus-scanning service automates the downloading and installation of new virus pattern ﬁles and ensures that the server is always capable of identifying the latest known threats.

Note: The ServiceLink virus protection is limited to 100 users. If you conﬁgure your system for more than 100 users, virus protection will automatically be disabled. The service can, however, be upgraded to support more than 100 users. Please contact your partner for more information.

Chapter 3. ServiceLink

• Guaranteed E-mail

This service provides a backup e-mail service if a server becomes unreachable and cannot receive mail. The most common reason for this is a temporary failure of the Internet connection provided by your ISP. With ServiceLink, mail that cannot be delivered to your server will be stored at the NOC. Simultaneously, notiﬁcations are sent to your Mitel Authorized Partner, who can investigate the cause of the outage.

This service uses what is called an MX secondary. Every domain name on the Internet has a record in the DNS which indicates which system should act as its primary mail exchanger ("MX" for short). When someone sends an e-mail, his or her local mail server will look for the recipient’s MX and send the e-mail to it. If the MX is unreachable due to a system or network outage, the mail may be queued or it may bounce back to the sender.

The guaranteed e-mail service provided to ServiceLink subscribers works by conﬁguring the DNS to use the NOC as a secondary MX. Therefore, if the primary MX is unreachable, the sender’s mail server will send the e-mail to the secondary MX – in this case, the NOC. All e-mail collected in this fashion will be forwarded to your server as it becomes available again.

There is nothing that needs to be done to conﬁgure the guaranteed e-mail service. As soon as the NOC starts publishing your domain through the DNS service, the NOC will be set up to act as an MX secondary and start guaranteeing the delivery of your e-mail.

In addition to storing the e-mail and eventually forwarding it, the Mitel Networks NOC provides notiﬁcation and reporting to your Mitel Authorized Partner. This allows your Partner to identify potential server or network outages at your site and respond in a timely fashion.

• DNS Services

One of the components of a full Internet solution is a domain name. Most businesses using the SME Server V5 with ServiceLink will want to register a domain name representing their business, and will need a DNS host to make this domain name accessible to the world.

For reasons of security and reliability, the server is not conﬁgured to publish DNS records by itself. (Any network server can be conﬁgured to act as a public DNS server, but doing so can create a serious security vulnerability.) A properly administered DNS host needs to be stable and always on the Internet, which is why a Network Operations Center such as that of Mitel Networks Corporation is ideally suited to the task.

The domain name hosting service provided by ServiceLink allows you to publish domain name records via our NOC. In addition to any domain names you may have registered, you will also be able to use the special e-smith.net domain. This provides a low-cost alternative for small businesses or home users who do not wish to pay registration fees for a .com or other domain. Users may register their server with a name such as "mycompany.e-smith.net".

• IPSEC VPNs

As discussed in the section on remote access, your server provides support for client-to-server Virtual Private Networks (VPNs) using PPTP. ServiceLink provides the additional ability to create server-to-server VPNs using the highly secure IPSEC standard. This service allows you to link together servers in different physical locations to make one seamless "virtual" network. Information sent via this network is encrypted to prevent "snooping" by others on the Internet.

To encrypt network trafﬁc between servers, the server uses the IPSEC protocol. This system uses an encryption technique known as public key cryptography. In simple terms, each server connected in a VPN knows the public key of each of the other servers on

Chapter 3. ServiceLink

the network; it uses that key to encrypt data intended for that server. A private key on the receiving server is then used to decrypt the data.

One of the difﬁculties in setting up a VPN is securely exchanging the keys required to set up the VPN. ServiceLink simpliﬁes and automates this process via a trusted central exchange – the Mitel Networks NOC. In addition, ServiceLink also secures and automates the renewal of encryption keys.

When you establish a VPN using ServiceLink, one server is designated to act as the "primary" server - the server whose user accounts will be accessible via the VPN. The other servers in the VPN (known as secondary servers) will function as gateways for the users on their local networks.

Chapter 4. Your Internet Service Provider (ISP)

Your ISP is your connection to the Internet - it routes Internet data packets to and from your server. It also provides other essential services. This section of the user’s guide reviews what ISPs offer and what the implications are in choosing among the various options available to you. While your ISP can also assist you in selecting and arranging the right Internet services for your organization, it’s important to know the general range of services available, since not all ISPs offer all services.

Warning

If you are operating the product in "server-only" mode, you will need to review your gateway/ﬁrewall documentation and perhaps consult with your ISP regarding your conﬁguration. For example, depending on your plans for the server, your ISP may need to publish DNS records associating your mail and/or web servers with your ﬁrewall IP address. Youmay also need to conﬁgure your ﬁrewall for port forwardingof services.

In server-only mode, the single Ethernet connection to the local network is "trusted" as being secure and packet ﬁltering is disabled. For that reason, a server-only server must always be behind a local ﬁrewall. You should not directly connect such a system to the Internet via an Internet Service Provider.

4.1. Dedicated versus dialup connectivity

Connectivity, also referred to as Internet access type, refers to the physical connection between your site and your ISP.How you connect to your ISP affects the speed of your Internet connection, which, in turn, impacts such things as how quickly your web site is displayed to visitors.

Dedicated connectivity refers to a full-time connection to your ISP. Although they are more expensive than the alternative, dedicated connections are generally faster and allow you to use the full range of services on your server. There are several common types of dedicated connectivity. ADSL provides relatively fast data transmission over phone lines. A cable connection links you to your cable company, which provides you with many (though not all) of the same services as a traditional ISP. The speed of transmission over a cable network can vary widely (from quite fast to very slow) based in part on the usage within your neighborhood.

If you have dialup connectivity, your server is not permanently connected to the Internet. Rather, it connects to your ISP over a phone line using a modem. Because your connection to the Internet is not permanent, some of the services on your server cannot be provided to the outside world. For example, having your server host your external company web site would create a problem because whenever your server was not connected to the Internet, the web site would not be available. (However, it could certainly host an intranet web site because the local network would always be connected.)

4.2. The IP address

An IP address is an identifying number assigned to all devices connected to the Internet, and is used in routing information from one device to another. Like your phone number, your IP address enables other people to reach you. In our standard conﬁguration, your ISP only needs to allocate one IP address for your network. It is assigned to your server, which will accept all the Internet data packets intended for your network and distribute them to the appropriate computer - much like an ofﬁce receptionist is able to accept incoming calls and direct them to the appropriate extension.

Chapter 4. Your Internet Service Provider (ISP)

4.2.1. Static versus dynamic IP addressing

A static IP address never changes. It is permanently assigned to your server by your ISP.

Note: Static IP addressing is preferable to dynamic IP addressing because it makes it easier for users on the Internet to connect to your services.

Dynamic IP address assignment means that your IP address is assigned to you only temporarily and may be changed by your ISP. This makes it more difﬁcult to ensure continuity of service to your network. Consider again our telephone number analogy. When your telephone number changes, you are able to place outgoing calls. However, until your new phone number is registered with Directory Services, other people are unable to look up your new number and place calls to you. Similarly, whenever your IP address changes, a record associating your server with its new IP address must be published with the equivalent of Directory Services (known as Domain Name Service or DNS) before incoming trafﬁc can ﬁnd you.

If your IP address is dynamically assigned and you have a dedicated connection to your ISP (for example, with a typical cablemodem), you may ﬁnd it helpful to use a dynamic DNS service. Westrongly recommend you review Appendix B: Dynamic DNS services for more information about this worthwhile option.

4.2.2. Routable versus non-routable IP addresses

If an IP address is analogous to your phone number, then a routable IP address is the equivalent of a full telephone number complete with country code and area code such as +1-613-555-1234. Using the same analogy, a non-routable address is the equivalent of an ofﬁce extension. If your server is assigned a non-routable address, it cannot directly receive incoming Internet connections, which limits the services that it can provide to your site.

4.3. Arranging connectivity with your ISP

If you are going to be using your server in "server and gateway" mode, you will need to arrange for a connection to the Internet. Your ISP will help you connect your site and provide you with services that enable you to take advantage of the Internet (e.g. e-mail delivery). To some extent, the type of connection used determines the services needed. Therefore, we guide you ﬁrst through arranging connectivity and then direct you to the appropriate list of services for each type of connection. The terms used in the following sections are deﬁned at the end of this chapter.

To connect your site to the Internet, you not only need to arrange your physical connection (modem, DSL, etc.), but you also need to ensure that your server can locate the appropriate devices at your ISP’s site. Your ISP will give you this information (e.g. IP addresses for their devices) which must eventually be entered into your server console (a straightforward process covered in a later chapter). Many ISPs use a DHCP server which can directly conﬁgure your server with some or all of these parameters.

4.3.1. Ordering a corporate ADSL or other commercial dedicated connection

Typically, your ISP will arrange for and conﬁgure your external hub and router. Alternatively, you may be required to install that hardware yourself under their direction. If a special phone line is required, the ISP will typically arrange that. It is most typical with

Chapter 4. Your Internet Service Provider (ISP)

corporate service that you receive a routable, static IP address. In fact, usually you will be allocated a block of routable, static IP addresses for your corporation - you will need only one for your server.

Information provided to you by your ISP:

• static IP address (or block of addresses from which you choose one)

• IP address of router ("gateway IP address")

• subnet mask

Order services from: Service List A

4.3.2. Ordering cablemodem or residential ADSL service

Typically, your cable company or ADSL provider will install a conﬁgured cablemodem or ADSL router at your site. If you do not have cable access, your cable company will install it for you. ADSL connects to the ISP via a conventional phone line. If you require an additional phone line, it is typical for you to arrange that yourself. There are three possible conﬁgurations when ordering cablemodem or residential ADSL services.

Chapter 4. Your Internet Service Provider (ISP)

Note: In the tables below, please keep the following information in mind:

1. ISPs often supply the items marked * to your server by DHCP.

2. Some ISPs block outgoing HTTP connections, forcing you to use their proxy server. This interferes in a fewminor wayswith your server (e.g., the test for Internet connectivity will fail erroneously). However, using the ISP’s proxy server will normally work ﬁne.

1. You receive a routable, static IP address Information provided to you by your ISP:

• static IP address

• IP address of cablemodem or ADSL router ("gateway IP address")

• subnet mask

Order services from: Service List A

2. You receive a routable, dynamically assigned IP address and you elect to use a dynamic DNS service (We encourage you to review Appendix B: Dynamic DNS Services for a discussion of dynamic DNS services.)

Information provided to you by your ISP:

• gateway IP address*

• subnet mask*

Information provided by dynamic DNS service:

Chapter 4. Your Internet Service Provider (ISP)

• DNS service account name

• DNS service password

Order services from: Service List B

3. You receive a routable, dynamically assigned IP address and you elect not to use a dynamic DNS service OR your IP address is non-routable.

Information provided to you by your ISP:

• IP address of cablemodem or ADSL router ("gateway IP address")*

• subnet mask*

Order services from: Service List D

4.3.3. Ordering a dialup connection

It is typical for you to purchase and install your own modem for your dialup connection. (Be sure to use a Linux-compatible modem

- WinModems will not work.) Your modem connects to your ISP over a conventional phone line. If you require an additional phone line, it is typical for you to arrange that yourself.

There are two possible conﬁgurations with dialup service:

1. Your ISP is able to meet all of the following three conditions:

• you receive a routable, static IP address

• your ISP will provide a secondary mail server for your domain, which receives e-mail when your server is not connected.

Chapter 4. Your Internet Service Provider (ISP)

• your ISP is able to accept the "ETRN command". (This command is used by the server to retrieve the mail held by the ISP’s

secondary mail server.)

Information provided to you by your ISP:

• static IP address

• dialup access number

• dialup account name

• dialup account password

Order services from: Service List C

2. Your ISP is unable to meet all three of the above conditions Information provided to you by your ISP:

• dialup access number

• dialup account name

• dialup account password

Order services from: Service List D

4.4. Arranging Services From Your ISP

In each section on connectivity, above, we direct you to the appropriate list of services that should be ordered from your ISP.

4.4.1. Service List A

• domain name set up and hosting

• publication of DNS address records for your web server, FTP server and e-mail server

• publication of DNS mail (MX) records

• secondary mail server (optional)

• Internet news server (optional)

Chapter 4. Your Internet Service Provider (ISP)

4.4.2. Service List B

Services to order from ISP:

• secondary mail server (optional)

• Internet news server (optional)

Services From Dynamic DNS Service

• domain name (depending on the service purchased, your dynamic DNS service may restrict what your domain name can be)

• publication of DNS address records for your web server, FTP server and e-mail server

• publication of DNS mail (MX) records

4.4.3. Service List C

• PPP dialup access (with static IP)

• domain name

• publication of DNS address records for your e-mail server*

• publication of DNS mail (MX) records

• secondary mail server (ETRN must be supported)

• Internet news server (optional)

Your web and FTP servers are available to the external world only when your server is connected to the Internet. DNS address records for web and FTP servers only need to be published if it is likely that someone external to your site will need to connect to them for a particular reason.

4.4.4. Service List D

Please read the important notes (below) on the limitations of this conﬁguration.

• PPP dialup access (if you are using dialup connectivity)

• POP mailbox (with generous size limitation)

• domain name - route all mail for domain name to the single POP mailbox

• Internet news server (optional)

Chapter 4. Your Internet Service Provider (ISP)

Some Important Notes on Service List D (Multidrop Mail)

Service list D is applied to conﬁgurations where the publication of DNS records is not practical either because your IP address changes frequently or because it is non-routable. Because there is no published address receiving incoming network connections, this conﬁguration does not allow you to host a web page or FTP site using your SME Server V5 with ServiceLink.

In this case, e-mail is handled using a method called "multidrop", which involves temporarily storing all e-mail messages addressed to your domain in a POP mailbox at your ISP until your server connects and fetches them. Your POP mailbox must be large enough to hold the e-mail for your organization until it is fetched. If your primary ISP cannot supply this, you can use another ISP for your e-mail hosting.

As e-mail messages are delivered into the POP mailbox at your ISP, some of the addressee information is removed. To determine to whom the e-mail message is addressed, your server uses several heuristics. This works very well for normal person-to-person e-mail. However, messages from mailing lists (and other sources where the user’s account name is not present in the headers) cannot be delivered. Any e-mail that cannot be delivered will be returned to the sender. If the e-mail cannot be returned to sender, it will be directed to the system administrator.

Some ISPs add a header to each e-mail message as it enters the POP mailbox to assist in determining the addressee. One common header tag is: "X-Delivered-To". If your ISP does this, make note of the header tag used so that you can conﬁgure your server to look for it (explained in a later section).

Because of the potential problems involved with delivery of e-mail to multidrop mailboxes, we strongly encourage you to consider other means of mail delivery before resorting to using multidrop.

Terms used in ordering connectivity and services

ADSL (or DSL)

ADSL is a type of high-speed Internet access that uses regular phone lines and is available in many metropolitan areas.

Domain Name

This refers to the unique name attached to your organization on the Internet. For example, "tofu-dog.com" or "e-smith.com". If you don’t have a domain name, your ISP can help you select one, ensure it is available, and register it.

DNS (Domain Name Service)

DNS, or Domain Name Service, refers to the software and protocols involved in translating domain names to IP addresses. Your server provides DNS lookup services for your local network, and your ISP typically also provides you with the IP addresses of DNS servers. These servers do not need to be conﬁgured into your server as the DNS server that is provided with your server will correctly resolve all local and Internet names.

DNS: Publication of DNS Address Records

The publication of DNS address information allows other DNS servers to look up your domain information. Your ISP must publish DNS address records associating the name of your web server ("www.domain.xxx"), FTP server ("ftp.domain.xxx") and e-mail server ("mail.domain.xxx") with the IP address of your server.

Chapter 4. Your Internet Service Provider (ISP)

DNS: Publication of DNS Mail (MX) Records

The publication of DNS mail (MX) records is the method used to inform Domain Name Services worldwide that all e-mail to your domain ("yourdomain.xxx") should be delivered to your e-mail server ("mail.yourdomain.xxx").

ETRN

ETRN is a command used for dialup solutions in order to retrieve e-mail temporarily stored at your ISP

Gateway IP Address

A gateway is the device on your network that forwards packets to and from the Internet. The gateway IP address is the IP address for that device.

Internet News Service

If you want access to Internet newsgroups, your ISP will need to provide the IP address of an Internet news server. The ISP will provide direction in conﬁguring your web browser or other newsreading software.

PPP

PPP refers to the "Point-to-Point Protocol" used when a modem connects to the ISP.

PPPoE

"PPP over Ethernet" is a modiﬁed version of PPP that is used over some high-speed ADSL connections to the ISP.

Secondary Mail Server

A secondary mail server receives e-mail for your domain if your server is unavailable, and reattempts delivery later.

Subnet Mask (or netmask)

A subnet mask (or a netmask) has four numeric segments (each between 0 and 255) and looks like an IP address. It enables your computers to deduce what network they are on. Your ISP provides the netmask for the external network between the ISP and your server.

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

The hardware requirements of the SME Server V5 with ServiceLink are modest compared with other server software available today. However, because of its critical role in your ofﬁce, selecting an appropriate host computer is important. The hardware requirements of the host computer depend on such things as the number of users on your network, whether you plan to use the proxy server on the server, and the speed of your Internet connection.

Because the SME Server V5 with ServiceLink software relies upon your computer meeting the hardware standards noted in this section, Mitel Networks Corporation cannot support a server installed on hardware that does not meet these standards.

Before you consider the requirements deﬁned below, please be aware of the following notes:

• The server ships with the remote access services disabled by default. Enabling webmail will increase the resource requirements of

your server, in particular the memory requirement. Other remote access services, such as ssh and PPTP, are also processor-intensive. You should consider a fast processor speed if you intend to make signiﬁcant use of these services.

• The server should work with any Pentium, Celeron, AMD or Cyrix processor that can run Red Hat Linux 7.1.

• For a dedicated connection in server and gateway mode, your server requires two ethernet adapters (also called network adapters

or network interface cards). For a dialup connection or server-only mode, one ethernet adapter is needed.

• SCSI (Small Computer Systems Interface) is a system for adding peripherals to a computer which enhances performance,

reliability and scalability. If you are using a SCSI system, you will need a speciﬁc adapter/driver (installed similarly to an ethernet adapter) and will need to purchase SCSI-enabled peripherals. These tend to be more expensive than their non-SCSI counterparts but the tradeoff is often worth it if the system will be under heavy loads.

Note: Our hardware recommendations only apply to servers with up to 500 users. This is not a technical limitation, and the SME Server V5 with ServiceLink can provide services to more than 500 users. In that case, we suggest that you specify a custom system using our Category 4 requirements as the minimum starting point.

5.1. Hardware Requirements for a Category 1 Server

The following information outlines what we consider the minimum system that can give satisfactory performance as a basic ﬁle/print server and network gateway. Note that we do not believe such a system will provide satisfactory performance for features such as webmail, remote access via PPTP and for ServiceLink offerings such as automatic virus protection and IPSEC VPNs.

Table 5-1. Deﬁnition of a Category 1 Server

# of Users Up to 10 Usage Light (minimal use of remote access, ﬁle sharing and other disk-intensive activity. No use of

webmail, virus scanning or VPNs.)

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

Table 5-2. Hardware Requirements for a Category 1 Server

Architecture PCI-based Pentium-class processor Processor speed 90 MHz (or better) Minimum RAM 32 MB (64 MB recommended) Hard drive IDE or SCSI - at least 1 GB SCSI adapter SCSI adapter must appear on the supported list (only necessary for SCSI systems) Ethernet adapters The ethernet adapters installed on your server must appear on the supported list. Modem (for dialup only) Only modems that are Linux-compatible may be used. WinModems are not supported. CD-ROM drive ATAPI or SCSI Floppy drive any Monitor any Graphics card any Mouse none required Sound card none required

5.2. Hardware Requirements for a Category 2 Server

Table 5-3. Deﬁnition of a Category 2 Server

# of Users Up to 40 Usage Light (moderate use of remote access, ﬁle sharing and other disk-intensive activity)

Table 5-4. Hardware Requirements for a Category 2 Server

Architecture PCI-based Pentium-class processor Processor speed 400 MHz (or better) Minimum RAM 128 MB Hard drive IDE or SCSI - at least 6 GB SCSI adapter SCSI adapter must appear on the supported list (only necessary for SCSI systems) Ethernet adapters The ethernet adapters installed on your server must appear on the supported list. Modem (for dialup only) Only modems that are Linux-compatible may be used. WinModems are not supported.

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

CD-ROM drive ATAPI or SCSI Floppy drive any Monitor any Graphics card any Mouse none required Sound card none required

5.3. Hardware Requirements for a Category 3 Server

Table 5-5. Deﬁnition of a Category 3 Server

# of Users Up to 40 Usage Heavy (heavy use of remote access, ﬁle sharing and other disk-intensive activity)

Table 5-6. Hardware Requirements of a Category 3 Server

Architecture PCI-based Pentium-class processor Processor speed 600 MHz (or better) Minimum RAM 256 MB Hard drive IDE or SCSI (SCSI highly recommended) - at least 10 GB SCSI adapter SCSI adapter must appear on the supported list (only necessary for SCSI systems) Ethernet adapters The ethernet adapters installed on your server must appear on the supported list. Modem (for dialup only) Only modems that are Linux-compatible may be used. WinModems are not supported. CD-ROM drive ATAPI or SCSI Floppy drive any Graphics card any Mouse none required Sound card none required

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

5.4. Hardware Requirements for a Category 4 Server

Table 5-7. Deﬁnition of a Category 4 Server

# of Users Up to 500 Usage Heavy

Table 5-8. Hardware Requirements of a Category 4 Server

Architecture PCI-based Pentium-class processor Processor speed 700 MHz (or better) Minimum RAM 256 MB Hard drive SCSI - at least 20 GB (2 large SCSI drives using RAID1 strongly recommended) SCSI adapter SCSI adapter must appear on the supported list Ethernet adapters The ethernet adapters installed on your server must appear on the supported list. Modem (for dialup only) Only modems that are Linux-compatible may be used. WinModems are not supported. CD-ROM drive ATAPI or SCSI Floppy drive any Monitor any Graphics card any Mouse none required Sound card none required

5.5. Supported Ethernet Adapters

Either one ethernet adapter (in the case of dialup connectivity or server-only mode) or two ethernet adapters (for dedicated connections in server and gateway mode) must be installed on your SME Server V5 with ServiceLink. This section describes which types of ethernet adapter can be used in the computer that will become your server. (There are no restrictions on the ethernet adapters in your other computers.)

Any adapters installed on the server must appear on the following supported list. Note that only PCI adapters are supported. The PCMCIA adapters used in many laptops and the older ISA adapters are not supported.

Note: Because SME Server V5 with ServiceLink is based on Red Hat Linux version 7.1, PCI ethernet adapters that can work with Red Hat 7.1 should also work with SME Server V5 with ServiceLink. You can ﬁnd an up-to-date searchable database at Red Hat’s web site at: http://hardware.redhat.com/redhatready/cgi-bin/us/db-hcl.cgi (Choose Network Device/Controller from the

"Hardware Category" menu.)

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

If you need more information about how to install an Ethernet adapter, please visit our HOWTO document on "Installing an Ethernet Adapter in 11 Steps" found online at http://www.e-smith.org/docs/howto/nicinstall-howto.html

Be aware that your Mitel Networks Corporation service representative may not be able to support you if choose to use an adapter that is not on our supported hardware list. Please consult your Mitel Networks Corporation service representative for more information.

5.5.1. Supported Ethernet Adapters

Among the many Ethernet adapters supported by SME Server V5 with ServiceLink are the following:

• 3Com 3C501, 3C503, 3C509, 3C556, 3C590, 3C592, 3C595, 3C597

• 3Com 3C900, 3C900B, 3C905, 3C905B, 3C905C, 3C980, 3C985

• 3Com Megahertz 3CXE589D, EC, ET

• Accton EN1203, EN1207, EN1207(B,C,D,F), EN2212 EtherDuo PCI, SOHO BASIC EN220

• Adaptec ANA6901/C, ANA6911/TX, ANA6911A/TX

• ALFAGFC2206

• AMD

• Allied Telesyn AT-2550, AT-2560

• AMD 79c970 (PCnet LANCE), 79c978 (HomePNA)

• AT&T GIS (NCR) 100VG

• C-NET CNE-935

• Cogent EM100, EM110, EM400, EM960, EM964 (Quartet)

• Compaq NetFlex 3/P, Integrated NetFlex 3/P

• Compaq Netelligent 10 T PCI UTP,10 T/2 PCI UTP/Coax, 10/100 TX Embedded, 10/100 TX PCI UTP,10/100 TX UTP, Dual

10/100 TX PCI UTP, Integrated 10/100 TX UTP,ProLiant Integrated 10/100

• Compex ReadyLink 100TX, 2000, ENET100-VG4

• D-Link DE-530CT, DFE500-Tx, DFE540-Tx

• Danpex EN-9400P3

• DEC 21040, 21041

• Davicom Ethernet 100/10

• Farallon PN9000SX

• Fujitsu FMV-181, FMV-182,FMV-183, FMV-184

• General Instruments SB1000

• Genius GF100TXR (RTL8139)

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

• HP J2585A, J2585B, J2970, J2973

• IBM EtherJet PCI 10/100 adapter (i82557)

• Intel 82556, 82557, 82865

• Intel PCI EtherExpress Pro 10+, Pro100+, Pro100B

• Kingston EtherX KNE100TX, KNE110TX, KNE120TX, KNE20T, KNE30T, KNT40T, KNECB4TX

• Lite-ON LNE100TX

• Lucent WaveLan

• Macronix MX98713, MX987x5

• Microdyne/Eagle NE10/100 (i82557 w/DP83840 transceiver)

• NDC Communications NE100TX-E

• Netgear FA310TX 10/100, FA310TXC 10/100, GA620

• Novell NE1000, NE2000, NE2100, NE2500, NE3210, NL-10000

• Olicom OC-2183, OC-2325, OC-2326

• Racal Interlan ES3210

• Realtek 8029

• Samsung Smartether100 SC1100

• Sis 900

• SMC 8432T, 8432BT, EtherPower, EtherPower10/100, EZ 1208T, EZ 1211TX, 83C170QF, LANEPIC

• Surecom EP-320X

• Symbios 83C885, Yellowﬁn G-NIC

• Syskonnect Gigabit Ethernet

• Thomas Conrad TC5048

• Znyx ZX312 (EtherArray), ZX314, ZX315, ZX342, ZX344, ZX345, ZX346, ZX348, ZX351

If your adapter is not listed above, it may be supported if it is based on one of the following chipsets (check with Red Hat’sweb site mentioned above for conﬁrmation):

• Alteon AceNIC Gigabit Ethernet

• Compex RL2000

• DEC Tulip

• KTI ET32P2

• NetVin NV5000SC

• RealTekRTL8029, RTL8029AS, RTL8129/8139

• VIA Rhine, VT86C926 "Amazon"

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

• Winbond 89C940

5.6. Supported SCSI Adapters

If the computer you plan to use for your server has a SCSI hard disk, your SCSI adapter must be supported by Red Hat Linux 7.1. PLEASE NOTE: Only PCI SCSI adapters are supported by the SME Server V5 with ServiceLink. Furthermore, they must contain a SCSI BIOS so that the PC can boot from the SCSI disk.

Note: As SME Server V5 with ServiceLink is based on Red Hat Linux version 7.1, PCI-based SCSI adapter that can work with Red Hat Linux 7.1 should also work with SME Server V5 with ServiceLink. You can ﬁnd an up-to-date searchable database at Red Hat’s web site at: http://hardware.redhat.com/redhatready/cgi-bin/us/db-hcl.cgi (Choose Storage Device/Controller from

the "Hardware Category" menu.)

Because there are a very large number of SCSI adapters supported, the list below contains the overall categories of supported adapters. If your adapter falls into one of these categories, it is probably supported. Please check with your Mitel Networks Corporation service representative to verify support for your card.

Be aware that your Mitel Networks Corporation service representative may not be able to support you if choose to use a SCSI adapter that is not on our supported hardware list. Please consult your Mitel Networks Corporation service representative for more information.

Note: In the list below the use of an ’x’ symbolizes a wildcard. For example, ’AHA-29xx’ indicates it applies for the ’AHA-2930’ as well as the ’AHA-2940’ and any other models beginning with ’AHA-29’.

• Adaptec AIC-78xx, AHA-29xx, AHA-394x, 29160/39160, AHA-1520B

• Advansys ABP510, ABP514x, ABP930/40, ASC1200

• AMI MegaRAID

• Artop Electronic Corp AEC671x

• Dell PowerEdge RAID Controller 2

• Future Domain TMC-18C30

• HP NetRAID-4M

• IBM ServeRAID

• ICP Raid Controller GDT 6xxx, GDT 7xxx

1. Note that the ﬁrmware on this controller may need to be updated before it can work your server. See http://www.e-smith.com/faq/ for more information.

, Expandable RAID Controller 2/3

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

• Initio Corp INI-940, INI-950, INI-9100/9100W, 360P

• Intel 80960RP

• Mylex (BusLogic) FlashPoint Series, MultMaster 01/10

• Symbios 53c1510, 53c8xx

• Q Logic QLA10160, 1080, 1240, 1280, 2100, 2200 12160

5.7. Supported Tape Drives

If you intend to use the tape backup capabilities of the SME Server V5 with ServiceLink, you must have a tape drive that will work with a Linux system.

Webelieve that most SCSI tape drives and many IDE tape driveswill work correctly. Unfortunately, the popular OnStream tape drives do not at the current time work with Red Hat Linux version 7.1, and hence are not supported by your SME Server V5 with ServiceLink.

Wehave tested the following tape drives and know that they work with the SME Server V5 with ServiceLink:

Table 5-9. Supported SCSI Tape Drives

Vendor Model Revision Format

HP HP35470A T603 DAT SONY SDX-300C 0400 AIT

Table 5-10. Supported ATA(IDE) Tape Drives

Vendor Model Revision Format

Seagate STT20000A 8A51

Wehave tested and veriﬁed that the following tape drives do not work with the SME Server V5 with ServiceLink:

Table 5-11. Unsupported ATA(IDE) Tape Drives

Vendor Model Revision Format

OnStream DI-30 ADR

If you do not have one of the supported drives listed above you may want to check with http://hardware.redhat.com/ for information about how well that drive will work with Red Hat Linux 7.1.

Note: If your tape drive is not listed at Red Hat’s site, you can visit http://www.linuxtapecert.org/ to see if your tape drive vendor is participating with that tape drive certiﬁcation effort. Be aware that some of the solutions developedto get certain tape drives to work with Linux may require kernel modiﬁcations and only be attempted by experienced developers.Please consult your Mitel Networks Corporation service representative for more information.

Chapter 5. Hardware Requirements of the SME Server V5 with ServiceLink Host Computer

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

6.1. Licensing Terms and Conditions

In installing the SME Server V5 with ServiceLink software, you are agreeing to the open source licensing terms and conditions associated with it. You can read these terms and conditions in the introduction to this manual under the title Software Licensing Terms and Conditions.

Warning

The computer on which you install this software will be totally dedicated to being your SME Server V5 with ServiceLink. The hard drive of this computer will be erased and re-written with the Linux operating system - dramatically enhancing the reliability of your server over other operating systems. However,this means that while this computer is acting as your server, you cannot use it for any other purpose.

Note: If you have previously installed and conﬁgured a server and are reinstalling the software, please be aware that you must use the Upgrade option in order to preserve your existing conﬁguration and data. Simply performing a new installation will erase all previously existing user accounts, user directories, i-bay contents and web site and conﬁguration parameters. If you have not already done so, you may wish to back up the contents of your server onto one of your desktop computers. You can do so easily by selecting "Backup or restore" from the server manager,as explained in the chapter on on-going administration of your server.

6.2. RAID1 Support (Disk Mirroring)

With SME Server V5 with ServiceLink, you have the ability to set up disk mirroring, also called RAID Level 1. In disk mirroring, you basically write all of your data to two separate hard disks installed in your server. One is the mirror of the other. Should the primary disk experience a hardware failure, the mirror disk will continue operations as if nothing had happened. All of your data will be protected.

Disk mirroring can be accomplished through either software or hardware .

6.2.1. Software Mirroring

To enable software RAID1 support, you must ﬁrst have two disks that are either the same size or capable of having partitions of the same size. They can be either SCSI or IDE drives. They must both be installed in your system prior to installing the SME Server V5 with ServiceLink software. Software RAID support can only be conﬁgured at the time you install the software. If you choose not to conﬁgure RAID support on your server, and later wish to do so, you will need to reinstall the SME Server V5 with ServiceLink software.

Once you have two disk drives, activating RAID support requires only a very slight change in the software installation process.

Note: SME Server V5 with ServiceLink supports a software implementation of RAID Level 1, known as disk mirroring. It does not support RAID Level 0 (disk striping), as that does not provide any protection of your data whatsoever. It does not support RAID

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

Level 5 (disk striping with parity) because of the poor performance and reliability of software implementations of RAID5. If you are seeking RAID5 support, Mitel Networks Corporation recommends you consider one of the many hardware implementations which will provide both protection and performance.

6.2.2. Hardware Mirroring

With hardware mirroring, you use a special RAID disk controller to perform the actual mirroring across multiple disks. As mirroring is performed in hardware, the performance can be signiﬁcantly faster than software mirroring. Additionally it can simplify conﬁguration because to the operating system the entire RAID disk system looks like one single disk.

You should be able to use any RAID controller listed in the section in Chapter 4 on supported SCSI adapters. If you are going to use hardware mirroring, you should NOT choose Install - Dual hard disk with software RAID-1 mirroring in the

installation process. (Doing so will enable software mirroring.) Instead, you should do a regular installation of the software.

Note: Using one of the suggested hardware RAID controllers, you will be able to upgrade from an earlier version of the server to version 5.0 using the standard upgrade process . You should back up all your data and test carefully after installation.

6.3. Upgrading From A Previous Version

If you have previously installed a server or an e-smith server and gateway and now wish to upgrade to version 5.0, you can do so while preserving your conﬁguration data. To do so, select Upgrade from the appropriate screen in the installation process.

While the upgrade should proceed smoothly, we do recommend that you back up your system prior to performing this upgrade just to be safe.

Warning

It is not possible to use the Upgrade option to add software mirroring (RAID1) to an existing server. If you previously installed software mirroring with server version 4.1, you should be able to upgrade without any problems.

However, if you want to upgrade a version of the server server prior to 4.1 (or an server 4.1 that was not installed with software mirroring) to use software mirroring (RAID1) support, you should:

1. perform a backup through the server manager

2. perform a fresh install selecting the software mirroring option

3. restore the backup through the server manager

If you do choose to use software mirroring in version 5.0, we expect that you will be able to upgrade to future versions of the SME Server V5 with ServiceLink.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

6.4. Installing the Software

Note: If you are conﬁguring your system with RAID1 support, notice that your step 4 below will be slightly different. If you skipped

the previous section on RAID, it would be advisable to read it before proceeding.

Step 1: Insert the CD-ROM. If your computer is an older model that is unable to boot from CD-ROM, you will also need to insert the boot ﬂoppy. Most modern computers do not need to use a boot ﬂoppy.

Step 2: Review the warning screens and type accept to indicate your acceptance of Mitel Networks Corporation’s legal terms and conditions and your acknowledgment that installation of the software will rewrite the host computer’s hard drive.

Warning

The installation (or upgrade) process formats and erases all attached hard drives. If you have multiple hard drives, be sure to back them up prior to starting the installation process.

Step 3: Read the software licensing terms and indicate your acceptance of the license. Step 4: Choose whether you wish to Install on a single hard disk (or use hardware mirroring),Install on dual hard disks using

software mirroring (RAID1 support), or Upgrade.

Step 5: Read the screen offering a ﬁnal warning. Type proceed and hit enter on the "OK" button to continue. The installation process will now automatically proceed to install the necessary packages.

Step 6: Indicate whether you wish to create an emergency boot diskette. This can be used in the future to boot the system in the event that you are unable to boot from the hard disk. If you choose yes, you will be prompted to insert a blank diskette. We recommend that you do create an emergency boot ﬂoppy and put it in a safe place where you can easily retrieve it when necessary.

Step 7: Finishing the installation is automatic and takes only a few minutes. At the end of the process, you will be prompted to remove the ﬂoppy diskette and CD and then to reboot your computer.

6.5. Conﬁguring your SME Server V5 with ServiceLink

Once your system has restarted (so that it is no longer booting from the installation CD), you are ready to conﬁgure your system. If your ISP provided you with a summary of your conﬁguration choices and network information, we suggest that you keep it handy

while completing the screens in the conﬁguration section of the server console. There are several types of conﬁguration parameters that must be entered into your server:

• the system password

• the type of ethernet adapters (network interface cards, or NICs) that will be used by your server to communicate with the internal

network and the Internet (or external network). Typically, the server software will detect this information automatically. (Note that if you are connecting to the Internet with a dialup connection, you only need one ethernet adapter.)

• conﬁguration for the internal (local) network - you must provide information about your internal network so that your server can

communicate with other machines on your local network.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

• operation mode - you must select whether your server will operate in server and gateway mode or server-only mode.

• conﬁguration for the external network/Internet - you must conﬁgure your server so that it can communicate with your ISP either

by a dedicated connection or using a dialup connection (only for server and gateway mode).

• miscellaneous information - there are several ﬁnal items to conﬁgure, such as whether to allow your users to use a proxy server,

whether to provide status reporting to Mitel Networks Corporation, and whether you wish to secure the server console so that it can only be accessed using the administrator’s password.

As you select a given conﬁguration parameter, you will be presented only with the screens necessary for your given conﬁguration. Each screen will provide you with a simple, detailed explanation of the required information.

Note: The "Keep" option: As you move through the conﬁguration screens, you will notice that there is a "Keep" option which will allow you to keep the choices you may have made previously. Obviously, when you are conﬁguring your system for the ﬁrst time, many of these choices will not havebeen made, but if you later go back to re-conﬁgure the system, this option can save time.

6.6. Setting Your Administrator Password

As shown in the image below, the ﬁrst thing you will be asked to do is to set the system password. This is the password you will enter to access the web-based server manager. Depending on how you conﬁgure the system, you may also need to enter this password to access the server console. It is extremely important that you choose a good password and keep that password secret.

Anyone who gains access to this password has the power to make any change to your server!

After you enter the password once, you will be asked to type it again to conﬁrm that the password was recorded correctly.

Note: You can use any ASCII printable characters in the administrator password. As this password gives someone total control over your server,you should choose a password that cannot be guessed easily. A good password should contain mixed upper- and lower-case letters, numbers and punctuation, yet also be easy to remember. An example might be "Iwme-sS!" as in "I want my e-smith Server!" (Please don’t use this example as your password!)

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

6.7. Conﬁguring Your System Name and Domain Name

As shown below, your next step is to enter the primary domain name that will be associated with your SME Server V5 with ServiceLink. (You can later conﬁgure other virtual domains that work with the server.)

Next you need to provide a name for your server. You should think carefully about this as changing it later may create additional work. (For instance, Windows client computers may be mapping drives to your server using its name. Those clients would need to remap the drive using the new name.)

Tip: You should make the system name as unique as possible in case you someday decide to link your server to another server using an IPSEC VPN. When you do,each server will need a unique name. Using some type of theme, such as location names, may be an effective way to ensure unique names.

6.8. Conﬁguring Your Local Network

6.8.1. Selecting Your Local Ethernet Adapter

An ethernet adapter - also called an ethernet card or network interface card (NIC) - is a special piece of hardware that serves as the interface between a computer and the ethernet network. It connects your computer and the ethernet, allowing the computer to communicate with other computers and devices on the network.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

A computer needs a special software program, called an "ethernet driver", to use an ethernet adapter. Which ethernet driver is required depends on which ethernet adapter is installed on your computer.

You will ﬁrst need to select the appropriate driver for the ethernet adapter connected to your local network, a shown in the screen below:

If you are using a PCI ethernet adapter that appears on our supported list, it is likely that your server will be able to detect your hardware automatically and you will simply be able to choose option 1, "Use xxxx (for chipset yyyy)", where ’xxxx’ and ’yyyy’ are speciﬁc to your hardware. If the software fails to detect it correctly, you can manually select the appropriate driver for your ethernet adapter from a list of drivers or from a list of ethernet adapter models. After the appropriate driver is selected, select "OK" and proceed to the next screen.

6.8.2. Conﬁguring Local Network Parameters

Your SME Server V5 with ServiceLink needs information about your local network in order to communicate with the other computers on your network. This includes the IP address and the subnet mask on your server’s internal interface. Because your server acts as a gateway and ﬁrewall, these will differ from the IP address and subnet mask on the external interface.

If you plan to operate in server and gateway mode (explained in greater detail below), your server will act as a relay between your local network and the Internet. Because no computer on your local network, other than your server, directly interacts with the external world, the IP addresses assigned to those computers need only be unique with regards to your local network. (It doesn’t matter if a computer on someone else’s local network uses the same IP address, because the two machines will not be in direct contact.) As a result, we are able to use special "non-routable IP addresses" for your local network, including the internal interface of your server.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

If you have no reason to prefer one set of IP addresses over another for your local network, your server will prompt you with default parameters that are probably appropriate in your situation.

Tip: If you are installing servers at multiple sites within your organization, you may ﬁnd it useful for later troubleshooting to use different network addresses for each site. Additionally, if you ever want to establish an IPSEC VPN between the servers, each server will need to use a different range of IP addresses. Even if you are not planning to use a VPN right now, it would be safest to use unique network addresses for each location.

If, however, you are operating your server in "server-only" mode and there are already servers on your network, you will need to obtain an unused IP address for your local network.

Next, you will be prompted to enter the subnet mask for your local network. If you are adding your server to an existing network, you will need to use the subnet mask used by the local network. Otherwise, unless you have a speciﬁc need for some other setting, you can accept the default setting.

6.9. Operation Mode

After conﬁguring your SME Server V5 with ServiceLink for your local network, you will see the following screen. This is where you select your server’s operation mode.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

6.9.1. Option 1: Server and gateway mode

In server and gateway mode, your server provides services (such as e-mail, web services, ﬁle and print sharing) to your network and also acts as a gatewaybetween your internal network and the outside world. The fact that it serves as a "gateway" means it has separate interfaces with each network, and provides security and routing.

If you conﬁgure your server to operate in server and gateway mode, your server will require either:

1. two ethernet adapters (one to communicate with the local network and the other to communicate with the external network/Internet)

2. one ethernet adapter (for the local network) and a modem for a dialup connection

With server and gateway mode, there are a number of extra parameters that will need to be conﬁgured. These will be discussed in the next section.

6.9.2. Option 2: Private server and gateway

This mode is a variation of option 1 and provides the same functionality with the following differences:

• Your web server is not visible to anyone outside of the local network.

• Your mail server is not accessible from outside of the local network.

• Additional ﬁrewall rules have been conﬁgured to drop packets for various services (such as ’ping’ requests).

All services are available on the internal network. The differences are entirely in how your server is seen by the external world. You would select this mode only if you wish to use the server as a gateway, but do not wish to publish any services to the external

Internet.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

6.9.3. Option 3: Server-only mode

Server-only mode is appropriate if you do not wish to use the gateway capabilities of your server. In this conﬁguration, your server connects only to the local network and does not connect directly to the outside world (although it may connect indirectly through your ﬁrewall or another server).

Warning

Because the server "trusts" the local network to be secure in server-only mode, it must be behind a ﬁrewall of some type. Under no conditions should it be directly connected to the Internet.

Your network will resemble the image below:

If you have a connection to the Internet by way of another gateway or corporate ﬁrewall, you can conﬁgure your server to provide services (including e-mail, web services, ﬁle and print-sharing) to your network. In this instance, you do not need your server to provide the gateway role because that role is fulﬁlled by your ﬁrewall. If you select Option 3, "Server-only mode - protected network", your server will provide your local network with web, e-mail, ﬁle and print-sharing.

On the next conﬁguration screen, you should enter the IP address for the Internet gateway on your local network. If you do not have an Internet connection, simply leave this conﬁguration screen blank.

6.10. Conﬁguring Server and Gateway Mode

If you are conﬁguring your server to operate in server and gateway mode, you must select one of two Internet connection types - a dedicated connection (such as ADSL or cable modem) or a dialup connection (in which case you will be connecting to your ISP via a modem).

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

The next step after selecting a connection type is to enter the speciﬁc parameters representing that connection.

6.11. Server and Gateway Mode - Dedicated

How you conﬁgure your server’s external interface depends on whether you are using a dedicated connection or a dialup connection. Therefore, if you conﬁgured your server for "server and gateway mode - dedicated connection" you will be presented with very different conﬁguration screens than if you conﬁgured the server for "server and gateway - dialup connection" (as discussed in the next section).

6.11.1. Conﬁguring Your External Ethernet Adapter

As you did previously with your local ethernet adapter, you need to conﬁgure the driver for your external ethernet adapter. As before, the software will attempt to detect the card. If it correctly identiﬁes the card, you can proceed using Option 1, "Keep current driver". If it does not, you will need to manually select the driver.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

6.11.2. Assigning Your Ethernet Adapters to Network Connection

To communicate successfully, your server needs to know which ethernet adapter connects it to the internal network and which adapter connects it to the external network/Internet. Your server will make this designation automatically - the ﬁrst ethernet adapter (in position "eth0") will normally be assigned to the local, internal network and the second ethernet adapter (in position "eth1") will normally be assigned to the external network/Internet. In the event that this assumption is incorrect, this screen allows you to easily swap that designation.

If you don’t know which ethernet adapter is designated to eth0 and which is designated to eth1, we suggest you leave it in the default conﬁguration while completing the rest of the screens. You will later have the opportunity to "Test Internet Access" from the server console. If your test fails at that time, return to this screen, swap the card assignment and retry the test.

Tip: If you are using two different network interface cards, you will see which driver is associated with eth0 and which is associated with eth1. This information can help you determine which card is eth0 and which is eth1. If you have two cards that use the identical driver you will see a screen such as the one above where the actual driver is not listed.

6.11.3. Conﬁguring Your External Interface

With a dedicated connection in server and gateway mode, you will be presented with the following screen:

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

Your server must know three additional things to communicate on the Internet:

• its own unique IP address so that Internet data packets can reach it.

• a subnet mask (also called a netmask) which looks like an IP address and allows other computers to infer your network address

from your IP address.

• the IP address of the external gateway for your server. This is the IP address of the router on your server’s external network. It

identiﬁes the computer that your server should contact in order to exchange information with the rest of the Internet.

Normally, you would need to know this information and enter it into the server console. However, most ISPs are capable of automatically assigning these conﬁguration parameters to your server using a DHCP server or PPPoE.

If you have a static IP address and your ISP is conﬁguring your server using DHCP or PPPoE, select Option 1, 2 or 3 depending upon how you will be connecting to your ISP. When you ﬁrst connect to your ISP, your server will automatically be given its external interface conﬁguration parameters.

If your ISP is providing you with a dynamic IP address, the ISP will conﬁgure this through DHCP or PPPoE and your server will be re-conﬁgured automatically whenever your IP address changes. If you plan to use a Dynamic DNS service, select Option 2. Otherwise, select Option 1.

There are some very good reasons to use a dynamic DNS service if you have a dynamically assigned IP address. It is a simple, affordable way to ensure continuity of service when your IP address changes. Please read the next section on dynamic DNS for more information about dynamic DNS.

If you are using ADSL and need PPP over Ethernet, choose Option 3. You will then be asked for the user name and password you use to connect to your ISP. Note that some ISPs require you to enter their domain name as well as your user name.

What is PPPoE?

PPPoE is the Point-to-Point Protocol over Ethernet. Essentially, it is an implementation of the popular PPP protocol used for dialup connections - only conﬁgured to run over an Ethernet connection. Many ISPs that provide ADSL connections use PPPoE as the method of connecting their customers to the Internet over ADSL.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

If you have a static IP address and your ISP does not offer DHCP or PPPoE, then your ISP will give you the static IP address, subnet mask (or netmask), and the gateway IP address of the device that your server should connect to in order to communicate with the Internet. Assuming you have this information on hand, you can go ahead and select Option 4. Successive screens will prompt you to enter each parameter.

6.11.4. Conﬁguring Dynamic DNS

If you choose either of the DHCP options or PPPoE, you will be presented with an additional screen where you can choose which dynamic DNS service you wish to use.

The server is pre-conﬁgured to operate with four dynamic DNS organizations: yi.org (http://www.yi.org/), dyndns.com (http://www.dyndns.com/),dyndns.org (http://www.dyndns.org/), and tzo.com (http://www.tzo.com/). (You can elect to use a different service, but doing so would require some customization of the server.) Once the service is selected, the subsequent two screens will prompt you to enter your account name and the password for your account. (These two parameters would be given to you by the service. Note that the dynamic DNS service may place restrictions on which domain name you can use for your company.) Please read Appendix B on dynamic DNS for more information about whether a dynamic DNS is right for you.

6.12. Conﬁguring the Server for Server and Gateway Mode - Dialup Access

If you select dialup access, successive screens will ask you for the following information:

• information regarding the modem connection with your ISP, including the serial port your modem is connected to

1. Your modem documentation may indicate which serial port is used by the modem. Youmay also be able to visually identify which port your modem uses.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

• modem initialization screen - most users can simply leave this blank, but with some particular modems, additional information

may need to be entered here

• the dialup access phone number

• username

• password

• connection policy

This last item may be of special interest. As shown in the screen below, you can conﬁgure what type of policy you wish to have in place during typical work hours. If you are in a small ofﬁce and wish to share your phone line between your computer and phone or fax, you may wish to minimize the time you are online. This is also true if your ISP charges a fee on a per-minute basis. On the other hand, if you have a separate phone line or unlimited time with your ISP, you might want to have long connection times or a continuous connection.

Warning

If you are using a dial-on-demand link to your ISP, please be aware that you can incur very steep phone charges due to dialup connection attempts to the ISP. We are aware of at least one case in which a failed modem link at the ISP resulted in several thousand connection attempts over a couple of days - and a hefty phone bill. If your telephone carrier charges you per-call or per-minute fees, we suggest that you contact your ISP and ask whether it is willing to assume responsibility if a failure at their end results in a large phone bill.

After conﬁguring this policy for "work" hours, you can then conﬁgure the policy for time outside of ofﬁce hours and additionally for the weekend. Notice that you do have the choice of never , which would allow you to restrict your system from connecting on weekends or during off-hours.

The connection policy deﬁnes several choices including Short, Medium or Long. These specify how long the server should wait before disconnecting the dialup connection. If your ofﬁce only shares a single phone line, the Short option minimizes the amount of connection time and frees up the phone line for later use. The down side to this is that if someone is reading a long page on the web site or steps away from their computer for a brief moment, when they want to then go to another web page, the server will probably have disconnected and will need to redial and connect. On the other hand, setting the Long connection time will result in users experiencing fewer delays while waiting for the server to reconnect. However, the phone line will used for a larger amount of time.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

There are two separate timeout values conﬁgured by each choice. One value is the length of time since the last HTTP (web) packet went through the server. The other is a more general timeout for any other types of packets. The difference is there because it is assumed that people reading a web page may take longer to go on to another web page, whereas users connecting to another service (such as ssh or POP3 to an external server) probably will be more active than someone using a web browser. The timeout values are shown in the table below.

Choice HTTP Timeout Other Timeout

Short 3 minutes 30 seconds Medium 10 minutes 5 minutes Long 20 minutes 10minutes

Note that there is also the option for a Continuous dial-up connection. Choosing this option is basically equivalent to creating a permanent or dedicated connection, but only doing so through the use of a dial-up connection and a modem. One example of this use might be to set a Continuous connection policy during work hours and then some variable policy during off-hours and the weekend. Assuming that your ISP is okay with this arrangement and you can afford to do so ﬁnancially, these settings would give your users the fastest response time as the connection would always be online.

6.13. Conﬁguring Your DHCP Server

You now will be prompted regarding DHCP service. Your SME Server V5 with ServiceLink can be conﬁgured to provide DHCP service to your internal network. The DHCP server can automatically conﬁgure the other computers on your internal network with such parameters as non-routable IP address, subnet mask and gateway IP address. This reduces the risk of error and simpliﬁes the process of conﬁguring your network.

Werecommend conﬁguring your server to use DHCP to conﬁgure all of your network clients. You should not do this if there is an existing DHCP server on your network as there should typically be only one DHCP server per network.

6.13.1. Conﬁguring the DHCP Address Range

Before the DHCP server is able to assign IP addresses to the computers on your network, you need to tell it what range of IP addresses it can safely distribute. As above, this section is pre-conﬁgured with defaults that are appropriate in most situations.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

If you have fewer than 180 machines on your local network and no reason to prefer one range of IP addresses over another, you can simply accept the defaults for these screens.

If the defaults are not appropriate to your situation, you may need a bit of background to understand how to conﬁgure this range. For example, if you entered the server address of 192.168.1.1 and subnet mask of 255.255.255.0 (the default settings), the conﬁguration script will infer that your "network" is 192.168.1.0 and that valid addresses are from 192.168.1.1 to 192.168.1.254. If you entered some number such as 192.168.100.1 for the server, the script will infer that your valid addresses will be 192.168.100.1 through

192.168.100.254. If you enter the number "192.168.202.65" as the "beginning of DHCP address range", as shown below, the ﬁrst computer served by

the DHCP server would receive the IP address of 192.168.202.65. The second computer would receive the IP address of

192.168.1.66, and so on.

If you specify that the end of the range is "192.168.202.250", as shown below, then the last computer able to receive DHCP service would be assigned the IP address 192.168.202.250. Once all the available IP addresses within that range are assigned, your DHCP server will no longer serve IP addresses to new computers.

6.13.2. Important issues about the DHCP address range

The usual range maximum is 254: Normally the "end of DHCP address range" cannot exceed "254". If you have more than 253 computers on your network and would like to exceed this range maximum, you can use a Class B or Class A non-routable address for your network. In this case the number entered in the "end of range" ﬁeld needs to be calculated and entered a little differently. If you fall into this category, we recommend you contact Mitel Networks Corporation or a Mitel Networks Corporation partner for assistance. Note that the default range maximum is 250. As explained below, this is to allow a few static addresses at the end of the range.

The local IP address assigned to your server itself must fall outside of this range: In other words, you should not assign your server a non-routable IP address that is also assignable by the DHCP service to another computer on your network. If your server is

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

assigned the IP address of "192.168.1.1" then the lowest possible number in the DHCP range should be "2". Werecommend that you leave a small pool of IP addresses that can be manually assigned: Some of the computers (or devices

such as network printers) on your network may not be able to accept DHCP service. Therefore, it is preferable to exclude some IP addresses from the DHCP range so they are available to be assigned manually to those computers. For example, using the

192.168.1.0 block of addresses, the default "beginning of DHCP address range" is "192.168.1.65". This ensures that non-routable IP addresses "192.168.1.2" through "192.168.1.64" are available to you if any computers on your network cannot accept DHCP service. Additionally, the default end of "192.168.1.250" leaves addresses "192.168.1.251" through "192.168.1.254" available.

6.14. Further Miscellaneous Parameters

There are a few, ﬁnal connectivity-related parameters that must be entered into your SME Server V5 with ServiceLink. Master DNS server: The ﬁrst option is for a master (or primary) DNS server. You should only conﬁgure this value if your server is

behind a ﬁrewall and cannot perform direct queries to Internet DNS servers. Most installations should leave this setting blank. You do not need to conﬁgure your server to use your ISP’s DNS servers.

Note: Your SME Server V5 with ServiceLink contains a fully functional caching DNS server and in almost all cases you will not need to enter the address here for a DNS server. However, some corporate ﬁrewalls restrict DNS queries from internal DNS servers. If that is the case, you will need to supply the address for an external DNS server.

External proxy server: The next screen allows you to conﬁgure your server so that the computers on your network will use a proxy server outside of your own network . Some Internet Service Providers may require this. Additionally, if your server is behind another ﬁrewall, it may need to use the external proxy server. If you have questions about whether to use a proxy server, we recommend you read Appendix C on using a proxy server. In most environments you can probably leave this blank.

Status reporting: You will be asked to decide whether to enable status reporting to Mitel Networks Corporation. Through status reporting, Mitel Networks Corporation, tracks the performance of its servers worldwide. Every day, your server would send a small packet of data containing up-time information to Mitel Networks Corporation. The information sent to Mitel Networks Corporation is minimal and is not shared with any other organization.

Console mode: Next, as shown below, you select the security setting for the server console itself - in other words, whether users will require a password to access the server console. If you choose the default, "auto", the server console will be displayed on your server monitor. In many small ofﬁce or home ofﬁce situations, this is perfectly acceptable. However, doing so allows anyone with physical access to your server monitor and keyboard to make system-wide changes. If you are concerned about security in your situation, you may wish to choose "login." This setting prevents users from accessing the server console unless they login as "admin" with the system password you set earlier in the process. Note that this setting controls access to the server console only; it does not control whether you (or anyone else) can administer your server using the web interface.

Chapter 6. Installing And Conﬁguring Your SME Server V5 with ServiceLink Software

Contact e-mail address: Finally, you will have the option of providing a contact e-mail address and name. If you would like to be notiﬁed of security updates or new versions of software, we strongly encourage you to provide at least your e-mail address. As the screen indicates, we will only send you notices of updates and no other information. Yourcontact information will not be shared.

The last screen asks you to conﬁrm the changes you have made. After the changes take effect, you will see other services starting up. When that is ﬁnished, your server should be fully operational!

Congratulations - you have conﬁgured your SME Server V5 with ServiceLink!! Afterward you may want to test your Internet access using the test option in the server console. If you chose "auto" earlier, the server

console remains permanently "up" on your server. Otherwise you would need to login as "admin". Most routine administration (for example, adding or deleting e-mail addresses) is done from your desktop computer using the web-based server manager (reviewed in a later chapter). Therefore, once it is up and running, most users put their server in an out-of-the-way place and turn off the monitor.

Chapter 7. The Server Console

When installation is complete and if you set server console mode to "auto", the opening screen of the SME Server V5 with ServiceLink server console will appear:

If you set the server console mode to "login", you will be given a login prompt. After you enter the user name "admin" and your system password, you will see the server console screen above.

Note: Any time that you login to your system as the "admin" user you will see the server console. This is true even when connecting to the server remotely using a tool such as ssh (discussed later in the chapter on Remote Access).

The server console provides you with basic, direct access to your server. From the server console you can get the following information and perform the following tasks:

Option 1: Provides you with uptime information about your server. Option 2: Allows you to view and modify the conﬁguration information you entered during the original installation (ethernet cards,

IP address information, DHCP, DNS, domain names, etc.)

Option 3: Provides you with a summary of the conﬁguration parameters entered into your server. Option 4: Allows you to test your Internet access by sending a small test packet of information to a server on the Internet (located at

Mitel Networks Corporation) which will conﬁrm that your server is communicating on the Internet.

Option 5: Allows you to smoothly reboot or shut down your server. Option 6: Provides you with a means to access the web-based server manager using a text-based browser. This is the same interface

to which you can connect from another system using a normal graphical browser. This option merely allows you to perform these functions directly from the server console.

Option 7: Connects to http://www.e-smith.org/docs/manual/ to allow you to read the online version of this manual. Option 8: Displays the GNU General Public License (the license governing the distribution and use of SME Server V5 with

ServiceLink software) and information on how to contact Mitel Networks Corporation for support.

Chapter 7. The Server Console

7.1. Using the Text-based Browser

For Option 6, Access server manager with text-mode browser, the server uses a text-based browser called lynx to allow you to access the web-based server manager from the server console. Navigation is primarily with the arrow keys - up and down to move through the page, right arrow to follow a link, left arrow to go back. Lynx has a wide range of other commands which you can learn about through the online help available at http://www.lynx.browser.org/ Note that for security reasons some regular features of lynx are disabled when you are browsing from the server console (such as the ability to specify an external URL). Type ’q’ (for ’quit’) to exit the text-based browser.

7.2. Accessing the Linux Root Prompt

If you are an expert user and would like to do advanced modiﬁcations to the conﬁguration of your server, you can access the Linux operating system underlying the SME Server V5 with ServiceLink software by logging in as the user "root". If your server is displaying the server console and not a login prompt, you can press Alt-F2 to switch to another screen with a login prompt. To switch back, press Alt-F1. You should always ensure that you log out from the root account when you are ﬁnished and before you switch back to the server console.

The password for the "root" user is whatever password is currently set for the administrator of the server.Note that this is the same password as that used by the "admin" user account.

Be aware that this ability to switch between the server console and a login prompt is only available when you have physical access to the server. If you connect in remotely as the "admin" user and see the server console, you will not be able to switch to a login prompt in that window. (You can, however, open up another remote connection to your server and login as the "root" user.) Note that remote administrative access is disabled by default and must be speciﬁcally enabled through the Remote Access panel of the server manager.

Note: If you are not familiar with working from the Linux prompt, you may be interested in trying a ﬁle management tool called Midnight Commander. It allows you to perform many ﬁle operations through a menu-driven interface. Simply type mc at the command prompt. Press the function key "F1" for help and "F10" to quit.

Chapter 8. Conﬁguring the Computers on Your Network

8.1. What Order to do Things

For efﬁciency, we recommend you conﬁgure your desktop computers in the following order:

Step 1: First, conﬁgure one of your desktop computers to work with TCP/IP (using the information in this chapter). Step 2: With TCP/IP up and running on one of your computers, you can now access the server manager over the web and create your

employees’ user accounts. The next chapter, On-going Administration Using the e-smith Manager, explains this simple process. Step 3: Once e-mail accounts are created, you can ensure that all the computers on your network are conﬁgured for TCP/IP, e-mail,

web browsing and LDAP (using the information in this chapter).

Note: If you already have e-mail accounts set up with your ISP, you will need to do things in a different order to ensure continuous e-mail service to your site. See our online HOWTO document titled Transitioning From a Prior E-mail System available at http://www.e-smith.org/docs/howto/emailtransition-howto.html

This chapter helps you conﬁgure software and hardware supplied by other companies and for that reason is not as speciﬁc as the rest of this guide. Given the wide range of computers, operating systems and software applications, we cannot accurately explain the process of conﬁguring each of them. If your computers and applications came with manuals, they might be useful supplements to this chapter. Technical problems encountered in networking your desktop computers and applications are best resolved with the vendors who support them for you.

8.2. Conﬁguring Your Desktop Operating System

The dialog box where you conﬁgure your desktop differs from operating system to operating system and version to version. In Microsoft systems, desktop conﬁguration occurs in the "Properties" dialog box associated with the TCP/IP protocol for your ethernet adapter. To get there, go to the "Control Panel" and select "Network". If a TCP/IP protocol is not yet associated with your ethernet adapter, you may need to add one before you can conﬁgure its properties with the following information. On Apple computers, open the TCP/IP Control Panel under the Apple Menu.

Note: For a more complete example of conﬁguring a Windows 95 client, see our HOWTO document online at http://www.e-smith.org/docs/howto/wintcpip-howto.html

Item Description What to enter

enable TCP/IP protocol All your computers must communicate on the

network using the TCP/IP protocol.

disable non-TCP/IP protocols

Unless an application relies on a non- TCP/IP protocol, disable all other protocols.

In Windows you add a TCP/IP protocol. In Apple, open TCP/IP Control Panel.

Turn "off" other networking protocols (e.g. NetBeui, etc.)

Chapter 8. Conﬁguring the Computers on Your Network

Item Description What to enter

enable DHCP service See section below In Windows, enable "Obtain an IP address

service automatically". In Apple, select "DHCP server".

Note: We strongly recommend that you conﬁgure all clients machines using DHCP rather than manually using static IP addresses. Should you ever need to change network settings or troubleshoot your network later, you will ﬁnd it much easier to work in an environment where addresses are automatically assigned.

On a Windows 95/98 system, the window will look like the image below.

8.2.1. Automatic DHCP Service

Your server provides a DHCP server that assigns each of the computers on your network an IP address, subnet mask, gateway IP address and DNS IP address(es). For a more detailed explanation of DHCP, consult the section in the Chapter 5 called "Conﬁguring Your DHCP Server".

Note: In some rare cases, you may want to use a static IP address for a particular client machine. The typical approach is to manually enter this IP address into the network properties of the speciﬁc machine. The negative side of this approach is that you cannot easily change or alter network settings without having to go in and modify the information on the client machine. However, it is possible to provide this static IP address directly through DHCP rather than manually conﬁguring the client computer. To do so, you will ﬁrst need to determine the Ethernet address of the client computer (usually through the network properties). Next you will go to the Hostnames and addresses web panel of the server manager and enter the information there.

Chapter 8. Conﬁguring the Computers on Your Network

Only One DHCP Server

It is imperative that no other DHCP server is on your network. If a former DHCP server conﬁgured your computers, you should remove that DHCP server from your network. Leave DHCP enabled, and reboot each computer. New IP addresses, netmasks, gateway IP addresses and DNS addresses will be assigned automatically by the server DHCP server.

8.2.2. Manual entry for computers not using DHCP service

As noted above, we strongly recommend that you perform all your client conﬁguration using DHCP. It is even possible to assign a static IP address through the Hostnames and addresses web panel of the server manager that will be distributed through your DHCP server.

However, if your computers do not support DHCP, you must manually enter the following information into your TCP/IP properties:

Item Description What to enter

IP address Manually enter this information (see paragraph

below).

subnet mask (or netmask) Manually enter this number. The default subnet mask (or netmask) is

gateway IP address Enter the IP address for the server or, in the case

of server-only mode, enter the IP address for your network’s gateway (e.g. the ﬁrewall or network router).

IP addresses of your domain name servers

Manually enter this information. Normally you would just add the IP address for

You must assign a different, unique IP address to computers not accepting DHCP (see note below).

"255.255.255.0". If you are running in server and gateway mode,

your server is your local network’s gateway. Enter its IP address here: the default is "192.168.1.1". If you are running in server-only mode, enter the IP address for the device interfacing with your external network.

your server - the default used in the server console is "192.168.1.1". If you have a ﬁrewall other than your server that restricts internal queries to Internet DNS servers, you may need to enter additional DNS servers here.

It is critical that everycomputer on your network has a unique IP address and that you don’t assign two computers the same address. In enabling DHCP service in the server console, you designated a range of IP addresses for DHCP assignment. You also allocated a block of IP addresses for manual assignment. If you accepted the defaults pre-conﬁgured into the server console, IP addresses

192.168.1.2 through 192.168.1.64 will have been set aside for manual entry. To avoid duplication, use only those IP addresses when manually assigning IP addresses to your computers.

Chapter 8. Conﬁguring the Computers on Your Network

After conﬁguring the TCP/IP parameters, you may need to reboot your desktop computer to implement the conﬁguration changes. (For example, most Windows systems need to be rebooted after the TCP/IP conﬁguration has been changed.) Once the settings take effect, your computer will be connected to the server and to the Internet.

8.2.3. MS Windows workgroup conﬁguration

If you are using a Microsoft operating system, you must ensure that your workgroup is the same as the workgroup name of your server. (The default workgroup name is your domain name. In a subsequent chapter, we’ll explain how this can be changed using the web-based server manager.) If you are using the default name, go to the Control Panel, select "Network" and then select "Identiﬁcation". In the ﬁeld for "Workgroup", type your domain name.

A word about domain names

Once you’ve set up your server, there’s typically a delay of one or more days before your ISP publishes your domain address records (the domain name or names and the associated numerical IP address) so that the information is accessible to other computers on the Internet. Until it does, incoming mail won’t be able to ﬁnd you and computers elsewhere on the Internet won’t be able to contact your server using your domain name (for example, www.yourdomain.xxx). However, on your local network you should be able to connect to your server using the short names of ’www’ (for web access) and ’mail’ (for e-mail clients).

8.3. IMAP versus POP3 e-mail

There are two common standards for e-mail management, IMAP and POP3. Yourserver supports both protocols. You will need to select the protocol that is right for your organization.

POP3 is the earlier, better-known e-mail protocol. POP3 was designed to permit on-demand retrieval to a single client machine. E-mail is stored on the mail server until you retrieve it, at which time it is transferred over the network to your desktop machine and stored in your e-mail box there.

Chapter 8. Conﬁguring the Computers on Your Network

Beneﬁts of POP3 Drawbacks of POP3

Even when you are not connected to your network, you have access to the e-mail stored on your desktop.

IMAP e-mail, in contrast, is designed to permit interactive access to multiple mailboxes from multiple client machines. You manage your e-mail on the mail server over the network. You read your e-mail over the network from your desktop, but the e-mail is not stored on your desktop machine - rather, it is permanently stored and managed on the server.

Beneﬁts of IMAP Drawbacks of IMAP

You can access all of your new and stored e-mail from any machine connected to a network. Because all employee e-mail is stored on the server, backup of e-mail is easily accomplished.

POP3 was not originally intended to support users accessing and managing their e-mail from remote systems. Because your e-mail is stored on your desktop, setting up remote access of your e-mail when you are at a different computer can be complex.

If you are not connected to a network, new and stored e-mail messages are not available to you.

8.4. Conﬁguring Your E-mail Application

Each user’s e-mail application requires information about that user’s account, where to send outgoing e-mail and pick up incoming e-mail. This information is usually entered in the "preferences" or "options" section. Most e-mail applications require you to enter the following information:

User’s e-mail address: The user’s e-mail address is the user account as created in the server manager plus the @domain name. Typically it will be in the form of username@yourdomain.xxx (e.g. afripp@tofu-dog.com).

E-mail server or outgoing e-mail SMTP server: This is the name of the e-mail server from the server. Normally you should just enter mail here. If you prefer, you should also be able to use the full domain name of mail.yourdomain.xxx (e.g. mail.tofu-dog.com).

E-mail account name or user name: this is the name before the @ in the e-mail address. For example, the username for "afripp@tofu-dog.com" is "afripp".

If you choose POP3 e-mail service: Enable POP3 protocol: Typically, to enable the POP3 protocol for incoming e-mail, you click on the POP3 checkbox or select

POP3 from a pull-down menu in the section of your e-mail application dedicated to the incoming e-mail server. Disable IMAP protocol: To disable the IMAP protocol for outgoing mail (not all e-mail applications have IMAP protocol) click the

IMAP checkbox "off". Delete read e-mail from server: We recommend you conﬁgure your e-mail application so e-mail that has been read is not left on the

server. Todo this, click off the checkbox marked "leave mail on server" or click on the checkbox marked "delete mail from server". If you select IMAP e-mail: Enable IMAP protocol: Typically, to enable the IMAP protocol for incoming e-mail (note that not all e-mail applications offer

IMAP support) you click on the IMAP checkbox or select IMAP from a pull down menu in the section of your e-mail application

Chapter 8. Conﬁguring the Computers on Your Network

dedicated to the incoming e-mail server. Disable POP3 protocol: To disable the POP3 protocol for outgoing mail, click the POP3 checkbox "off". The images below show you the sequence in Netscape. First you choose Preferences from the Edit menu and click on Mail Servers

as shown in:

If you have not conﬁgured a mail server yet, you will need to press the Add... button and enter information about your server. Otherwise, you will select the default mail server listed and click on the the Edit... button. This will bring up a screen where you enter the user name and choose whether you are using IMAP or POP3:

Netscape should now be ready to send and receive e-mail.

8.5. Conﬁguring Your Web Browser

Most browsers are conﬁgured using a dialog box called "preferences", "network preferences" or "options". Some browsers need to be conﬁgured to access the Internet either directly or via a proxy server. When required, most desktop applications, your web browser included, should be conﬁgured as though they were directly accessing the Internet. Although the server uses a security feature known as IP masquerading, thereby creating an indirect connection to the Internet, this is a transparent operation to most of your desktop applications. Hence, you should ensure that the "Direct connection to the Internet" check box is clicked "on" in your web browser.

Under certain circumstances, using a proxy server can improve the perceived performance of your network. The server includes HTTP, FTP and Gopher proxy servers. Normally, we recommend these be disabled in your browser (Appendix C on Proxy Servers

Chapter 8. Conﬁguring the Computers on Your Network

explores this issue). If you decided that you do want to use proxy servers1, you will need to enter the IP address or domain name of the proxy server (i.e.

your server) into the conﬁguration screens of your web browser. The port number you will need to enter to connect to the e-smith proxy server is 3128. This information is the same for HTTP, Gopher and FTP proxying.

The image below shows how a proxy server would be conﬁgured in Netscape Navigator.

8.6. Conﬁguring Your Company Directory

Your SME Server V5 with ServiceLink will automatically create a company directory and update it as you maintain your e-mail accounts. The next chapter explains how to conﬁgure this service. Any client program that uses LDAP (Lightweight Directory Access Protocol), such as the address book in Netscape Communicator, will be able to access the directory. For example, with Netscape, look under the "Communicator" menu and choose "Address Book". Then look under the File menu and select "New Directory". You will see a dialog box similar to the one shown here.

1. Note that laptop users should disable proxy servers when working away from their local area networks.

Chapter 8. Conﬁguring the Computers on Your Network

You will need to enter the following information:

• Enter the name you wish to give your company directory - any name will do.

• The LDAP server is the name of your web server, in the form www.yourdomain.xxx.

• The Server Root information can be found on the "Directory" screen in your server manager (more information on this is available

in the next chapter). The usual form, assuming your domain is yourdomain.xxx, is dc=yourdomain,dc=xxx. (No spaces should be entered between the "dc=" statements.)

• The Port Number is always 389.

Once the address book has been created, Netscape can display a list of all e-mail accounts if you type an asterisk into the search ﬁeld and press "Enter".

Chapter 9. On-going Administration Using the server manager

The server manager is a simple control panel that allows you to administer your network. Using the server manager, you perform such tasks as adding or deleting e-mail addresses, setting the system date and time, and creating a starter web page. The server manager is accessed through a web browser by visiting the URL http://www.yourdomain.xxx/server-manager or more simply

http://www/server-manager. The staff at The Pagan Vegan would access the server manager using the URL http://www.tofu-dog.com/server-manager. We recommend you bookmark this address so that you can return to it whenever you

wish to access the server manager.

Note: For security reasons, you are only able to access the server manager through a web browser on the local network. Remote access is only possible using remote access tools such as ssh and PPTP.

When you arrive at the correct URL, you’ll be asked to enter your user name (which is always "admin") and the password you created during the installation process. Enter that information and click "OK" to be taken to the server manager. It will look like the screen shown above.

Chapter 9. On-going Administration Using the server manager

In the next four chapters, we’ll explain each of the administrative functions in the order in which they appear in the frame running down the left side of the screen. The links are grouped together under four headings: Security, Conﬁguration, Collaboration and Miscellaneous.

Note: As even one further layer of security, you can also connect to the server manager using the secure HTTPS protocol . This establishes an encrypted channel of communication between your browser and the server, even on your local network. To connect to the server manager in this manner, use a URL preﬁx of "https" as in the example: https://www.yourdomain.xxx/server-manager.

Chapter 10. Security

10.1. Password

This screen lets you change your system password at any time. To do so, type the new password in the ﬁrst ﬁeld. Verify the new password by entering it in the second ﬁeld. (Your password can be any combination of printable characters, including upper- and lower-case letters, numbers, and punctuation marks.) If you make a mistake, click the "Back" button on your browser and try again. Note that whenever you change your password, the system will prompt you for the revised password as soon as you access another feature. When you get the "Authorization Failed" message, click OK, enter the new password and press "Enter".

10.2. Remote Access

If you’re an advanced user, the SME Server V5 with ServiceLink provides several different ways to access the underlying operating system, either from a computer on your internal network or from a computer outside your site on the Internet. Additionally, you have the ability to access your computer network securely from a remote computer. All of these operations are conﬁgured from the screen shown below in the server manager.

Chapter 10. Security

Each of these remote access methods is described below.

10.2.1. ssh

If you need to connect directly to your server and login from a remote system belonging to you, we strongly encourage you to use ssh instead of telnet. In addition to UNIX and Linux systems, ssh client software is now also available for Windows and Macintosh systems. (See the section below.)

If you do not have any reason to allow remote access, we suggest you set this to No access.

Chapter 10. Security

ssh (secure shell)

ssh (secure shell) provides a secure, encrypted way to login to a remote machine across a network or to copy ﬁles from a local machine to a server. Many people do not realize that many programs such as telnet and ftp transmit your password in plain, unencrypted text across your network or the Internet. ssh and its companion program scp provide a secure way to login or copy ﬁles. The ssh protocol was originally invented by SSH Communications Security which sells commercial ssh servers, clients, and other related products. The protocol itself has two versions - SSH1 and SSH2 - both of which are supported by most clients and servers today. For more information about SSH Communications Security and its commercial products, visit http://www.ssh.com/.

OpenSSH, included with the SME Server V5 with ServiceLink, is a free version of the ssh tools and protocol. The server provides the ssh client programs as well as an ssh server daemon and supports both the SSH1 and SSH2 protocols. For more information about OpenSSH, visit http://www.openssh.com/.

Once ssh is enabled, you should be able to connect to your server simply by launching the ssh client on your remote system and ensuring that it is pointed to the external domain name or IP address for your server. In the default conﬁguration, you should next be prompted for your user name. After you enter admin and your administrative password, you will be in the server console. From here you can change the server conﬁguration, access the server manager through a text browser or perform other server console tasks.

If you do enable ssh access, you have two additional conﬁguration options:

• Allow administrative command line access over ssh - This allows someone to connect to your server and login as "root" with

the administrative password. The user would then have full access to the underlying operating system. This can be useful if someone is providing remote support for your system, but in most cases we recommend setting this to No.

• Allow ssh using standard passwords - If you choose Yes (the default), users will be able to connect to the server using a standard

user name and password. This may be a concern from a security point of view, in that someone wishing to break into your system could connect to your ssh server and repeatedly enter user names and passwords in an attempt to ﬁnd a valid combination. A more secure way to allow ssh access is called RSA Authentication and involves the copying of an ssh key from the client to the server. This method is supported by your server, but is beyond the scope of this manual and will eventually be covered by additional documentation on the e-smith.org web site.

Note: By default, only two user names can be used to login remotely to the server: admin (to access the server console) and root (to use the Linux shell). Regular users are not permitted to login to the server itself. If you give another user the ability to login remotely to the server, you will need to access the underlying Linux operating system and manually change the user’s shell in /etc/passwd.

10.2.1.1. ssh clients for Windows and Macintosh systems

A number of different free software programs provide ssh clients for use in a Windows or Macintosh environment. Several are extensions of existing telnet programs that include ssh functionality. Two different lists of known clients can be found online at http://www.openssh.com/windows.html and http://www.freessh.org/.

A commercial ssh client is available from SSH Communications Security at: http://www.ssh.com/products/ssh/download.html. Note that the client is free for evaluation, academic and certain non-commercial uses.

Chapter 10. Security

10.2.2. PPTP

The Point-to-Point Tunnelling Protocol (PPTP) is used to create client-to-server Virtual Private Networks (VPNs) and was developed by the PPTP Forum, an industry group which included Microsoft and several other companies. A VPN is a private network of computers that uses the public Internet to connect some nodes. PPTP allows users to connect to their corporate networks across the Internet.

Microsoft’s PPTP implementation is widely used in the Windows world to provide remote access across the Internet. If you have a remote Windows system (for instance, a laptop or a home computer) that has access to the Internet, you can also access the information stored on your server.

If you wish to enable VPN access, you must decide how many individual PPTP clients you will allow to connect to your server simultaneously, and enter that number here. The simplest method is to enter the total number of remote PPTP clients in your organization. Alternatively, if you have a slow connection to the Internet and do not want all of those PPTP clients to connect at the same time, you can enter a lower number here. For instance, if you have ﬁve users who from time to time use PPTP to connect remotely, entering 5 here would allow all of them to connect at any time. Entering 2 would only allow two users to connect at any given time. If a third user tried to connect, he or she would receive an error message and would not be able to connect until one of the other users disconnected. If, on the other hand, you entered 0 , no PPTP connections would be allowed.

After you enter a number and press Save, the server should be ready to accept PPTP connections. To connect using PPTP,the protocol must be installed on each remote Windows client. Typically, this is done through the Network

Control Panel (you may need to have your original Windows installation CD available). After it is installed (a reboot of your Windowssystem may be needed), you can create new connections through the Dial-Up Networking panel by entering the external IP address of the server you wish to connect to. Once you’re ﬁnished, you should be able to initiate a PPTP connection by double-clicking the appropriate icon in the Dial-Up Networking window. When you then open up your Network Neighborhood window, you should see your server workgroup listed there.

Note: Your connection to the Internet needs to be established ﬁrst before you initiate the PPTP connection. This may involve double-clicking one Dial-Up Networking icon to start your Internet connection, then double-clicking a second icon to start the PPTP connection. To shut down, disconnect your PPTP connection ﬁrst, then disconnect from your ISP.

Warning

To protect your network, the SME Server V5 with ServiceLink enforces the use of 128-bit encryption for PPTP connections, rather than the 40-bit encryption provided in earlier versions of Microsoft’s PPTP software. If you are unable to establish a PPTP connection to your server, you should visit http://windowsupdate.microsoft.com/ and download the appropriate update. Due to the dynamic nature of Microsoft’s web site, the page may appear differently depending upon the version of Windows you are using. In most cases, you will want to look or search for Virtual Private Networking or a Dial Up Networking 128-bit encryption update. You may need to install the 40-bit encryption update ﬁrst, and then install the 128-bit encryption update. Note that with Microsoft’s ActiveUpdate process, if you are not presented with the choice for this update, it is most likely already installed in your system.

Chapter 10. Security

10.2.3. FTP

Another way to upload or download ﬁles to and from your server is to enable a protocol called FTP, or "ﬁle transfer protocol". This screen enables you to set your policy for FTP.Note that allowing liberal FTP access to your server does reduce your security. You have two options that you can set here.

FTP user account access: Private FTP access allows only people on your internal network to write ﬁles to your server. Public FTP access allows users both inside and outside your local network to read or write ﬁles on your server, provided they have an account and password. If, for example, you want to be able to update your web site from home using FTP, you would choose the "Public" setting. We strongly recommend you leave this as Private unless you have a speciﬁc reason to do so.

FTP access limits: This allows you to set an overall site-wide policy for FTP access. The setting you choose here will override all other FTP settings on your server. For example, if you choose "Disable public FTP access" here and then later conﬁgure an i-bay to

allow public FTP access from the Internet, such access will be forbidden. Note that one of the choices here allows you to completely disable any use of FTP.

10.2.4. telnet

telnet has traditionally been one of the tools used to login remotely to other systems across a network or the Internet. This screen gives you the options to control the use of telnet as a means of connecting to your server. Telnet can be useful in that it allows you to login remotely and diagnose problems or conﬁgure settings. However, when you use telnet, all user names and passwords are transmitted without any kind of encryption, dramatically reducing the security of your server. For that reason, we strongly recommend the use of ssh as described above.

Note: Because telnet has been and continues to be widely used to date, we are providing the ability to use telnet for remote access. However,as ssh usage increases, it is our intention to removetelnet access from future releases of the server.

Telnet access: This can be set to "No Access", "Private" or "Public". Because of the inherent security weakness mentioned above, we strongly recommend that you leave this set to No Access (the default) and instead use ssh as described above. If you do need to enable telnet access, we suggest that you enable "public" or "private" telnet access only when absolutely necessary, and disable such access when it is no longer required. If "public" access is enabled, a red warning will appear at the top of every server manager screen.

Note: Because of these security concerns, we do not allow administrative access (connecting as ’root’or ’admin’) using telnet. Please use ssh instead.

10.3. Local networks

Your SME Server V5 with ServiceLink provides services to machines on the local network and it gives machines on that network special privileges and access. For example, only machines connected to the local network can access the mail server on your server to send mail. When you conﬁgured your server, you provided it with sufﬁcient information to deduce its own local network. Machines on the network are automatically identiﬁed by the server as being eligible for these privileges and access.

Chapter 10. Security

If your company only has one network that is being serviced by the server, you do not need to add any information here. Some advanced users may wish to extend privileges to more than one network of computers. If you would like your server to identify

one or more additional networks for those privileges, you will be asked to enter those network IDs and the subnet mask for each network here.

Note that depending on the architecture of your network infrastructure, the instructions for conﬁguring the client machines on that additional network may be different than the instructions outlined in the chapter in this manual. If you have questions regarding adding another network, you may wish to contact Mitel Networks Corporation or a Mitel Networks Corporation Authorized Partner for technical support.

Chapter 11. Conﬁguration

11.1. Set date and time

Accessing this section allows you to set the system date and time either manually or using a network time server. Pull-down menus for month and time zone ensure accurate entry. The server manager will reset the time automatically during daylight savings time. There are worldwide time zones with multiple selections for countries with multiple time zones. (including standard time zones, states/provinces and even cities). This ensures that regional variations in time zones and daylight savings time are accurately reﬂected.

Instead of setting the time manually, you can use a network time server. A time server is a device on the Internet that keeps accurate time and is able to communicate the time to other computers over the Internet using the Network Time Protocol (NTP). Many organizations around the world provide Internet time servers for free.

Chapter 11. Conﬁguration

Warning

After you start using a network time server,you should NOT set the time or date manually. If you do so, the network time synchronization will no longer function.

This screen in the server manager allows you to conﬁgure your server to connect regularly to a time server and synchronize the clock on the server with the time provided by the time server. To do this, simply check the box for "Enable NTP Service", add the domain name or IP address of the time server in the space provided and click "Save NTP Settings". Using a time server is optional but doing so can greatly increase the accuracy of your system.

For more information about using a network time server, visit http://www.ntp.org/.You can also ﬁnd a list of publicly available time servers at http://www.eecis.udel.edu/~mills/ntp/servers.htm. You should always use a secondary time server (also called a stratum 2 server) to lighten the load on the primary time servers.

Tip: In order to make sure the network time server is set to your timezone, you should go through this screen once and manually set the time to be correct and with the correct timezone. After doing that, go back to this panel and set the server to use a network time server.

11.2. Workgroup

If you are using a computer on a local network and you wish to access the server via Windows ﬁle sharing, it is important that you are logged onto the same workgroup as your SME Server V5 with ServiceLink. This screen allows you to enter the name of the Windowsworkgroup the server should appear in. You should also enter the Windows server name. In order that you may later connect multiple locations using IPSEC VPNs, we suggest that you use a different name for each server. If you wish you can change the workgroup name to correspond with an existing workgroup. Macintosh users need only enter a server name or accept the defaults.

Also in this section, you can specify whether the server should be the domain master for your Windows workgroup. Most sites should choose "Yes"unless you are adding an server to an existing network which already has a domain master.

Chapter 11. Conﬁguration

Warning

If you have a Windows NT server or Windows 2000 server on your network that is functioning as a network server, you should most likely answer"no" because that other server will act as the domain master.

If you do conﬁgure your system to be the domain master, a special Windows share called NETLOGON is created with a DOS batch ﬁle called netlogon.bat. This batch ﬁle is executed by Windows clients that have been conﬁgured to "Logon to domain". The netlogon.bat ﬁle we provide by default does very little, but advanced users can, if they wish, modify this script to set environment variables for their clients or provide automatic drive mappings.

As the NETLOGON share is only writable by the "admin" user, you modify the netlogon.bat script by logging on to a Windows system as "admin", connecting to the share and then modifying the script using a Windows text editor. Be aware that the NETLOGON share will not be visible in Network Neighborhood or other similar tools. As the "admin" user,you will need to connect to the share or map a drive to it, by using the speciﬁc path:

\\servername\NETLOGON\

The sample ﬁle contains a few examples of setting the system time for each machine and also for mapping a common drive for all Windowsclient.

11.3. Directory

Your SME Server V5 with ServiceLink provides an easy mechanism for creating a company directory. Each time you create or delete an e-mail account, your directory will be automatically updated with the new information.

Chapter 11. Conﬁguration

In this section of the server manager, you specify the default directory information for new accounts - the user’s department, company, street address, city and phone number. Each time you create an e-mail account, the ﬁelds will contain the information entered here as the default. If you wish, you can change the information for each user.

At any time in the future, you can change the default information and have the new information apply to all new users or to all existing users as well. The ﬁeld to do this is located near the bottom of the screen. Choosing "update with new defaults" is a convenient one-click method of revising your directory when, for example, your company has moved to a new address.

11.4. Printers

Your SME Server V5 with ServiceLink enables all users on your network to easily share a printer. The printer can be either locally attached to the parallel port of your server or can be a network printer. All the server needs is some basic information: the printer name (which can be anything you want, as long as it starts with a lower-case letter and consists only of lower-case letters and numbers, with no spaces), a brief description (for example, "the printer down the hall") and the location of the printer - whether it’s on the network or directly connected to your server.

Chapter 11. Conﬁguration

The next two ﬁelds can be left blank if your printer is on a local port. If it’s a network printer,you will likely already have assigned it an IP address. Enter that information where requested. The next ﬁeld asks for your network printer name. Use the default setting, "Raw", if you have no speciﬁc reason to do otherwise. ("Raw" is the name used by most network printers for their main print queues.)

Note: For maximum ﬂexibility in making changes later, we suggest that you enter the hostname for a network printer here and enter the IP address of the printer through the Hostnames and addresses panel of the server manager. This allows you to have one central location listing IP addresses and allowing you to make changes. Note that many modern network printers can be conﬁgured automatically. To do so, enter their hostname, IP address and Ethernet address in the Hostnames and addresses panel.

Note also that the server printing system does not perform any ﬁltering and passes the print requests directly from the client computers to the printer in the "raw" or "pass-through" machines. For this reason, the SME Server V5 with ServiceLink does not have a list of "supported printers". Most printers are supported as long as the appropriate driver is installed in the operating system on your client computers.

However, there are some newer printers that only have a Windows driver available and rely heavily on that operating system to perform their print functions. These printers cannot be used on the server. If you are concerned about whether your printer will work with your server, you can visit Red Hat’s Hardware Compatibility List (http://hardware.redhat.com/redhatready/html/us/static-hcl/intel-input-output.html) or explore the information found at LinuxPrinting.org (http://www.linuxprinting.org/).

As a ﬁnal item, you should be aware that in order to use the printers available through your server a user must be logged in to their client system with a user name and password that is valid on the server. For instance, if a user is logged in as tturtle on their Windowsdesktop and that user account does not exist on the server, the user will not be able to print to the printers managed by the server.Either the user will have to logout and log back in as a valid user or the tturtle account will need to be created on the server.

Chapter 11. Conﬁguration

11.5. Hostnames and addresses

When you installed your SME Server V5 with ServiceLink, you were asked to provide a name for your system. That name and several other "standard" names are automatically conﬁgured in your system’s host table during the installation process. This host table is consulted as part of the name resolution process. The "Hostnames and address" web panel allows you to modify this table and specify different host "names" for each domain on your system, as well as to control how those names resolve both for systems on your local network and also for systems on the larger Internet.

For instance, when someone tries to connect to "www.mycompany.xxx", they will be taken to wherever "www" has been set to point to. As seen in the image below, this screen in the server manager allows you to view these default settings, and also to modify the conﬁguration.

Using the Hostnames Panel with ServiceLink

Throughout the screens linked to from the Hostnames panel, you will ﬁnd the text "Publish globally?" with a checkbox next to it. If you are a subscriber to ServiceLink, you have the option of publishing these records through the ServiceLink DNS Conﬁguration and Hosting service. If you select this option, the hostname and IP address information that you enter will be uploaded to the Mitel Networks NOC and published through the global DNS system.

Suppose, for example, your company’s web site was hosted at some other location, such as on your ISP’s web servers. If you wanted "www.mycompany.xxx" to point to your ISP’sserver, you would modify the entry here by clicking the "Modify..." link next to "www". The image below shows the screen in which you would perform the task:

Chapter 11. Conﬁguration

You would ﬁrst change the location to "Remote" and then enter the IP address of your ISP’s server in the ﬁeld marked "Global IP".

11.5.1. Creating New Hostnames

Creating new hostnames simply involves selecting one of the links at the top of the Hostnames and addresses panel and ﬁlling out the appropriate ﬁelds. As mentioned previously, if you are a ServiceLink subscriber you can check "Publish globally?" and your changes will be propagated to the global DNS system automatically.

Note that if your system is conﬁgured with any virtual domains, you will have the choice of the domain in which you want to create the hostname. This allows you, for instance, to have "www.tofu-dog.com" pointing to one IP address and "www.mycompany.xxx" pointing to a completely separate IP address.

Note: Beyond your primary domain and any virtual domains you may have conﬁgured, ServiceLink subscribers will also have the option of adding hostnames in the special e-smith.net domain.

The hostnames you can create on this panel fall into three categories: Additional names for your server: For instance, you might want to set up "intranet.mycompany.xxx" to point to your server. All

you do here is enter the hostname and, if appropriate, choose the domain for the hostname.

Chapter 11. Conﬁguration

Remote hosts: As mentioned in the example earlier, you might want to point a hostname such as "www" to a remote system. While "www" is created by default, you can create other names such as "home", "research", or any other appropriate name. In the form, you simply enter the hostname, choose the domain, and enter the remote IP address.

Local hosts: This screen is a bit more complicated because you have more options. At a basic level, you can create a hostname in a domain that points to another computer on your local network. To do this, just type in the hostname and enter the IP address in the "Local IP" ﬁeld. For instance, you might want "research" to point to a computer system inside your network.

Where this gets complicated is when you want "research.mycompany.xxx" to be accessible both inside and outside your local network. The challenge is that your local IP addresses are only accessible inside your network. For that reason, the target computer system will need to have two network interface cards - one connected to the internal network and one connected to the external network. You would then enter both IP addresses in this screen in the "Local IP" and "Global IP" ﬁelds. Note that this will only work if you are a ServiceLink subscriber as the server alone does not update public DNS information.

Note: The "Ethernet address" ﬁeld when creating a hostname pointing to a local host is only used for reserving IP addresses through DHCP as mentioned in the next section.

11.5.2. Reserving IP Addresses Through DHCP

Another task you can perform through this panel is to reserve an IP addresses for a given system based on its Ethernet address. For instance, you might have another intranet web server within your company that you want to always have the same IP address. One method of assigning that address is to manually conﬁgure the client machine to have a static IP address. The negative aspect of doing this is that if you later want to change the network settings for that machine, you must manually go and conﬁgure that machine. An example would be if one of your DNS servers changed its IP address. Additionally, you have to keep track somewhere of the fact that you have assigned a speciﬁc IP address to that machine.

Rather than conﬁguring the machine manually, you can reserve an IP address from the DHCP server for that speciﬁc machine. This has the same result as manually conﬁguring a static IP address, but offers two beneﬁts. First, you have one location to keep track of all assigned static address. Second, through the DHCP server you will provide network settings. If you wish to change those settings, the change can be simply done on your server. All DHCP clients will then receive those updated changes when they renew their DHCP-provided addresses.

To reserve an IP address, you must ﬁrst determine the Ethernet address of your client system. Windows NT/2000 users can type the command ipconfig /all. Windows 95/98 users can run the command winipcfg. Linux/UNIX users can type ifconfig.

Once you have determined the client’s Ethernet address, click on the link to create a new hostname for a local host. Add the hostname of the target system, the Ethernet address along with the desired IP address into the web panel. From this point on speciﬁed IP address will only be provided to a client system with the matching Ethernet address.

11.6. E-mail Retrieval

As shown below, this section of the server manager allows you to specify the protocol used to retrieve e-mail from your ISP and conﬁgure other settings regarding the retrieval of e-mail.

Chapter 11. Conﬁguration

Your choice of e-mail retrieval mode will depend on the arrangements you made with your Internet service provider:

• If you have a dedicated connection, set E-mail retrieval mode to "Standard".

• If you arranged "ETRN" support with your ISP, choose that setting and then scroll down to the ﬁeld that asks for the IP

address or hostname of your ISP’s secondary mail server. This secondary mail server will provide temporary e-mail storage when your server is not connected to the Internet.

• If you arranged "multidrop" mail service from your ISP, choose "multidrop" and then scroll down to the ﬁeld that asks for the

IP address or hostname of your ISP’s secondary mail server. This secondary mail server will receiveall e-mail for your domain and store it in a single POP mailbox. Further down the screen, you will need to specify the user account and password assigned by your ISP for this POP mailbox. Your server will periodically fetch this mail and distribute it to individual POP mailboxes on the server.(Note that due to problems receiving mail for mailing lists, we strongly encourage people to NOT use multi-drop e-mail.)

• If you are a ServiceLink subscriber, choose "Guaranteed e-mail" in order to activate the guaranteed e-mail services.

If you want to forward e-mail to another mail server for processing, enter the mail server IP address in the box marked Delegate mail server. A common use for this is if your server is receiving inbound e-mail from the Internet, but you would like to pass that

mail to a different mail server on your internal network. If you have a dialup connection, the server allows you to control how frequently it fetches e-mail from your ISP. This is particularly

useful in situations where you incur phone or Internet charges each time your system contacts your ISP. The default settings are

Chapter 11. Conﬁguration

every 15 minutes during standard ofﬁce hours and every hour outside normal ofﬁce hours on weekdays or on weekends. The ﬁelds allow you to customize those settings.

Finally,if you have "multidrop" mail service you need to select the sort method used by the server to decide which user each message should be delivered to. Your server has a default method for this (it examines various headers such as "To" and "Resent-To") which works in most circumstances but is not suitable for certain purposes such as mailing list messages. Some ISPs add a header to each e-mail message which can help your server determine the correct recipient. If your ISP does not add a header to multidrop e-mail, select the "Default" sort method and ignore the "select sort header" ﬁeld. If your ISP does add a header to multidrop e-mail, then select "Specify below" and enter the header tag provided by your ISP. Because you will experience problems with mailing-lists when using multi-drop e-mail, we strongly recommend that you work with your ISP to have a special header added to each message. The "Default" sort method should be only used as a last resort.

11.7. Other E-mail Settings

This screen presents you with additional options for controlling how your system handles e-mail.

• Forwarding address for administrative notices: The default address for administrative notices (i.e. undeliverable mail, backup

notiﬁcations and other status/error messages) is "admin". If you’d like those messages to be sent elsewhere, enter the address here.

• E-mail to unknown users: This ﬁeld allows you to choose whether incoming messages to unknown users are bounced back to the

sender or forwarded to the system administrator. Some users prefer the latter setting because it allows them to catch and reroute e-mail that was incorrectly addressed.

Chapter 11. Conﬁguration

• Internet provider’s SMTP server: Normally the server will send outgoing messages directly to their intended destination. If,

however, you have an unreliable connection or are using a residential Internet service, it may be advisable to route e-mail via your provider’s SMTP server. In that case, you should enter the SMTP server’s hostname or IP address here.

In fact, if you have a temporary dial-up connection to the Internet, you may ﬁnd that you need to use your ISP’s mail server in order to deliver mail to some locations. As a reaction to the huge volume of unsolicited commercial e-mail ("spam"), many Internet sites are refusing direct SMTP connections from IP addresses that are known to be temporary dial-up accounts. For this reason, you may need to use your ISP’smail server since it will have a permanent connection to the Internet.

• POP and IMAP server access: The options are "Private" and "Public". The former allows access only from your local network.

The latter allows access from anywhere on the Internet. Think about this carefully. On the positive side, choosing "Public" access allows any of your users to retrieve their e-mail via POP/IMAP from anywhere on the Internet. The negative side is that when you do this, you are reducing your level of security, as you will now have two more services (POP and IMAP) that are listening for connections across the Internet. Both protocols also involve transmitting your password across the Internet in plain, unencrypted text, opening up the possibility that someone could intercept the packets and learn your username and password. Allowing such access can be a great convenience to your users, but if security is a concern you should consider using encrypted webmail instead.

IMPORTANT: Even with POP and IMAP conﬁgured for public access, users outside your local network are not able to send e-mail using your server as their SMTP host. Allowing this would open your server to abuse by spammers as a mail relay. Users who are travelling should either: a) use the STMP server of their local ISP; b) use PPTP to connect to your internal network; or c) use webmail to read their mail. Webmail provides your users with secure access to both read and send mail via your server.

• Enable/Disable Webmail: With this option you can enable or disable the webmail component of your server. More information

can be found in the Webmail chapter.

11.8. Review Conﬁguration

This section of the server manager summarizes how your server is conﬁgured. This is the data that you entered during the installation process and possibly changed later through the server console or the server manager. As you can see from the screen below, this is essentially a report that you can print out for your records. You do not have the ability to make changes from this screen.

Chapter 11. Conﬁguration

Chapter 12. Collaboration

12.1. User Accounts

User accounts should be set up for each person in your organization. A user account includes separate, password-protected e-mail and ﬁle storage areas.

If this is the ﬁrst time you are setting up user accounts for your organization, you will need to establish what your naming convention will be. Let’s assume you’ve decided that the account name should consist of ﬁrst initial and last name. So, if you have an employee named Fred Frog, Fred’s user account would be "ffrog". Assuming your domain name is tofu-dog.com, Fred’s e-mail address would be "ffrog@tofu-dog.com". Fred’s ﬁle directory on the server would also be named "ffrog". There are some basic rules built into the server as to what constitutes a valid account name. The account name must contain only lower-case letters and numbers and should start with a lower-case letter (not a number).

User account names are limited to twelve characters to maintain consistency with various versions of Windows. Longer names can be created for e-mail through the Pseudonyms panel. For your information, pseudonyms of "ﬁrstname.lastname" and "ﬁrstname_lastname" are automatically created for each account.

In the "User Accounts" section of the server manager, you will see a list of your current accounts. If you haven’t already created any accounts, select "Click here" and ﬁll in the requested information - the account name (the part of the e-mail address that comes before "@"), the person’s name, address, department, company and phone number. As a convenience, the defaults that you entered in the "Directory" section of the server manager appear each time you create a new account. You can, if necessary, modify the information for each user as you create the account.

From the list of user accounts, you can easily modify or remove a user account (by clicking on "modify" or "remove" next to the user name) or set the user’s password. User accounts are locked out and cannot be used until you set the initial password for each account. As a reminder of this, user accounts appear in red until the password is changed. (In the example shown here, the administrator has not yet changed the password for user "Sally Salmon").

Note: If you want someone to have an e-mail address at your company, but want the messages forwarded to another external e-mail address, you can create the user account but set the e-mail delivery option in the user account to Forward to address below and enter the external address. If you leave the user account locked out, the user will not be able to access services on your server, but the e-mail will be delivered to the external e-mail address.

Chapter 12. Collaboration

12.1.1. Disabling User Accounts

There may be times when you do not wish to delete a user account but instead merely want to disable it. For instance, when an employee leaves the company, you may want to immediately remove their access to the server, but still keep their ﬁles or e-mail address active until the information can be examined. To disable any user account on your server, just click on the Lock Account link on the User Accounts web panel. As soon as you click the link, the account will be locked out. The user will no longer be able to retrieve e-mail or connect to any ﬁles or other resources on the server.

When an account is disabled, e-mail will still be received for that user name, but the user will be unable to retrieve the e-mail. As noted above, if a user account is set to forward e-mail to an external e-mail address, the e-mail will be forwarded to that external address. To prevent this, you will need to modify the properties for that user account.

To re-enable the user account, you need to reset the password using the link on the User Accounts web panel.

12.1.2. Changing User Passwords

Once they have an active account, your users can set their own passwords by accessing the user-password URL. They do this through their web browsers by visiting the URL www.yourdomain.xxx/user-password (where "www.yourdomain.xxx" is the web server name you entered into the server console). The staff at The Pagan Vegan would visit the URL www.tofu-dog.com/user-password.

To make the change, a user would enter his or her account name (the characters before "@"), the old password and the new password (to ensure accuracy, the screen asks for the new password twice). Note that changing the password for a user in the server manager overrides any previous password entered by your user. Therefore, when a user forgets his password, simply reset it in the server manager.

Note: There is no way for the administrator to recover a forgotten password for a user.All they can do is set a new password for the user.

12.2. Groups

This screen allows you to create, remove or change user groups, which are simply lists of people with a shared interest - for example, they work in the same department or are collaborating on a project. The user group function serves two purposes in the SME Server V5 with ServiceLink: it permits e-mail to be sent conveniently to a group of users, and it allows the system administrator to associate groups of users with a single information bay (i-bay).

Creating a new group is a simple three-step process. You enter the group name (as with account names, these should begin with a lower-case letter and consist only of lower-case letters and numbers), followed by a brief description. Finally, check the boxes next to the names of the users who should be associated with that group.

Chapter 12. Collaboration

Warning

When you create a group, you are required to assign at least one user to that group. If you fail to do so, the group will not be created and you will receive an error message.

After you add (or remove) a user account from a group, the user must log out and log back in for those changes to take effect. Until the user does so, he or she will still have their old group membership information. For instance, say that you create a new group "sales" and assign user "ffrog" (Fred Frog) to that group. You then create a new i-bay called "salesinfo" that only the "sales" group can access. Fred Frog is still logged into a Windows PC and now tries to connect to the new i-bay through Windows Explorer. He will receive a permission-denied error. He must log out of windows (he does not need to shut down or reboot, just log out) and login again. Now he should be able to go through Windows Explorer and access the "salesinfo" i-bay without any problem.

12.3. Pseudonyms

Any user who has an account on your SME Server V5 with ServiceLink will be able to receive e-mail sent to that user ID. For instance, if you have a user named Fred Frog with the user account "ffrog", his primary e-mail address will be "ffrog@mycompany.xxx".

Likewise, when you create a group account, that group account name functions as an e-mail alias, so that messages addressed to the group ID will be sent to all members of the group. If, for example, you create a group called "sales", messages to "sales@mycompany.xxx" will be distributed automatically to all members of that group. As you add and remove members to the group, your server automatically updates the e-mail alias.

In addition to user and group accounts, however, your server also automatically creates several pseudonyms . For instance, for each user account, the server creates two separate pseudonyms using the ﬁrst and last names of the user. These two pseudonyms are in the form of "ﬁrstname.lastname" and "ﬁrstname_lastname". Hence, when you create the user account "ffrog" for a user with the name Fred Frog, he will also be able to receive e-mail sent to "fred.frog@mycompany.xxx" and "fred_frog@mycompany.xxx".

Additionally, your server creates a special pseudonym called "everyone" that includes all user accounts on the system. Twoother pseudonyms, "postmaster" and "mailer-daemon" are created pointing to the "admin" user.

If you wish to modify or remove any of these pseudonyms, or create new ones, you can use the web panel found under the "Collaboration" section, as shown below.

Note: The special pseudonyms of "everyone", "postmaster" and "mailer-daemon" will only be visible after you have either added a user account to the system or have added a custom pseudonym. Until that time, these three pseudonyms are there, but will not be visible on the Pseudonyms web panel.

Chapter 12. Collaboration

As noted on the screen below, there are some restrictions on the text content of the names. Pseudonyms can be linked to existing user or group accounts. In the example shown, a pseudonym for webmaster is being set to point to ffrog.

12.4. Information Bays

The i-bay (information bay) feature of the SME Server V5 with ServiceLink is a simple, very ﬂexible and powerful way for you to share information with others. It is a rich enough feature that we’ve devoted an entire upcoming chapter to discussing i-bays.

Chapter 12. Collaboration

12.5. Virtual Domains

When you are supporting multiple domains on a single server, each domain being served is referred to as a virtual domain. (The strict deﬁnition of virtual domain is when a single IP address is shared between multiple domains.) When you create a virtual domain using this section of the server manager, your SME Server V5 with ServiceLink will be able to receive e-mail for that domain and will be able to host a web site for that domain.

To create a virtual domain, ﬁll in the domain name and a description of the site. You then tell the server where to ﬁnd the content for that domain - it can be the same as your primary web site, or you can create a new set of web pages and store them in one of your i-bays. Clicking the arrow in the "Content" ﬁeld will show you a list of your current i-bays and allow you to make a selection. This feature allows you to host multiple web sites from a single server.

Be aware that you can point the virtual domain to either the primary web site or to one of the i-bays. You cannot point a virtual domain to a subdirectory that you simply create inside of the primary web site ﬁle area. You need to use an i-bay instead.

Note: When you are entering the name for the virtual domain, you should supply the fully-qualiﬁed domain name. This is the full name of the domain, including any extensions like ".com", but without any preﬁxes like "www" or "ftp". For instance, you can create a virtual domain by entering "tofu-bird.com", but not by entering "tofu-bird" or "www.tofu-bird.com".

Once you have created a virtual domain, your server will be automatically conﬁgured to answer to www.domainname.xxx, and proxy.domainname.xxx. It will also be conﬁgured to automatically accept e-mail for your virtual domain as well.

Note: In order for this to work outside of your local network, you will need to work with your ISP or whoever controls the DNS entries for your virtual domain to have the appropriate DNS entries pointed to the IP address of your server.For instance, your ISP will need to conﬁgure an MX record for the domain in order for you to receive inbound e-mail to that domain.

Chapter 13. ServiceLink

Until you sign up for ServiceLink and your server is registered, all of the panels in this section of the server manager will not be functional. In order to subscribe to ServiceLink, visit http://www.e-smith.com/servicelink/ and ﬁnd a partner near you.

The Mitel Networks Corporation partner will interact with the Mitel Networks NOC (Network Operations Center) to obtain a Service Account ID for your server. Once that number is entered into the Status panel on your server, you will be subscribed to ServiceLink. Your partner will enable ServiceLink services and they will begin to function. Once subscribed, your server will synchronize at a periodic interval (the default is one hour) with our NOC to retrieve updated information such as virus pattern ﬁles.

Be aware that one of the features of our NOC is that alerts can be established to notify your partner (or any e-mail address the partner sets) when your server has missed a sync period, when e-mail is arriving at the NOC instead of your server, and when viruses have been detected. Youwill also be able to receive monthly reports from your partner detailing ServiceLink activity.

13.1. Status

Until ServiceLink is activated, the Status panel will appear as shown in the image below.

A mentioned above, you will need to arrange with a Mitel Networks Corporation partner to subscribe to ServiceLink. Once you are subscribed, the Status page will change to show your current status. As shown in the image below, this panel also allows you to manually initiate a syncronization with the Mitel Networks NOC.

Chapter 13. ServiceLink

As the image shows, if there is an issue with any of your services, it will appear in red italics and you can follow a link to determine the problem. Note also that the expiration of your ServiceLink subscription appears.

13.2. Virus Protection

As soon as you are subscribed to ServiceLink and the VirusProtection service is enabled, all of your inbound and outbound mail messages will be scanned for viruses. The scanning software checks both the message body as well as all attachments.

If a virus is found on a message, the message is quarantined in a special mail folder and notiﬁcations are sent out about the virus. For an inbound message, the recipient at your site, the original sender and your Mitel Networks Corporation partner are notiﬁed. For an outbound message, only the sender (at your location) and your partner are notiﬁed.

In the server manager the conﬁguration screen shown below only allows you to enable or disable the service. While you can perform this action here, we stronglyrecommend you let your partner do this action on our NOC.

Chapter 13. ServiceLink

To view the quarantined messages, we recommend you login to webmail as the "admin" user. You will be then able to view the messages without any code being executed. (Do not open the attachments as doing so can infect your system.)

Note: Administrators with Linux experience can also use ssh to the server and login as the "root" user to use the command-line mail programs mutt or pine to view the messages.

Each time your server syncs with the NOC, it will check to see if a new virus pattern ﬁle is available. If a new ﬁle exists, it will be downloaded and installed automatically.

13.3. DNS Services

During the ServiceLink subscription process, your server will be enabled to publish DNS records through our NOC. As shown below, this panel in the server manager reports which domains you are publishing under the header "DNS Services".

Note: With ServiceLink you are able to publish domains in the top-level domains of .com, .org and .net. Other top-level domains may be possible for an additional charge. Note also that ServiceLink includes the publication of two domains. More than two domains can be published for an additional charge. Contact your partner for more details on either of these issues.

With ServiceLink, changes you make in the Hostnames and addresses panel of the server manager will automatically be published to the global Internet. A checkbox is available for each hostname that asks " Publish globally?". If you check that box, the record will be transferred to the NOC and from there published out to the larger Internet.

If, as shown in the screen above, there are domains that indicate they are not currently being published, your partner can use the NOC to conﬁgure those domains to start publishing your information. Be aware that it may require several business days for some domains to be registered and published.

Chapter 13. ServiceLink

The top part of the panel allows you to conﬁgure a service domain that is available to you after ServiceLink activation. This domain takes the form of yourdomain.e-smith.net and allows you to immediately start receiving e-mail and connecting to your server using that domain.

If you wish to change the service domain name, you can do so using this panel by entering your new name and clicking the Update button. If the domain you want is not available, you will be notiﬁed and will be able to choose another name. Service domain changes take effect immediatly after the next synchronization with the NOC.

Warning

The change of service domain takes place upon the next synchronization of your server with the NOC and your previous service domain will be completely removed. This includes entries for any hosts that you may have been publishing for the previous service domain.

Mitel Networks Corporation does not guarantee the availability of a domain name and reserves the right to refuse to register any domain name. All ServiceLink users publishing DNS domains must adhere to regulations and rules provided by ICANN and our registrar.

13.4. IPSEC VPNs

Through the PartnerZone interface to our NOC, your Mitel Networks Corporation partner is able to very simply and easily create a secure IPSEC VPN between your server and other ServiceLink-enabled servers. This provides an economical way of creating a private network between different ofﬁces without having to pay for expensive VPN equipment of dedicated connections. Each location just needs a connection to the Internet and a ServiceLink-enabled server. A VPN can be established between just two ofﬁces, or between a wide number of ofﬁces. All communication occurs using the extremely secure IPSEC protocol, so no one can intercept and read your data as it travels across the Internet.

Note: IPSEC VPNs can only be established between servers operating in server-and-gatewaymode. If you have a server operating in server-only mode, it will not be able to participate in an IPSEC VPN.

Once your partner has established a VPN, the web panel (shown below) will show that your server is a member of a VPN and provide information about the other systems to which your server is connected.

Chapter 13. ServiceLink

From a user perspective, the major difference will be that when you open up (on Windows) your "Network Neighborhood" or "My Network Places", you will now see the servers at the other locations on your VPN.

Note that when you establish a VPN using ServiceLink, one SME Server is designated to act as the "primary" server. All user accounts are created on this primary server and users must login with those accounts to access network resources. The other servers in the VPN (known as secondary servers) will function as gateways for the users on their local networks to access the VPN and Internet.

Chapter 14. Administration

14.1. Blades

Blades are a new feature in SME Server V5 with ServiceLink which allow you to easily install or remove software modules via the server manager. Using this feature will allow easy customization of your server. You can choose the options required for your particular needs without having to add unnecessary features.

If you have not registered for ServiceLink, you will see a list of default blades that are available to be installed. If, however, you have chosen to subscribe to ServiceLink, your server will display a regularly updated list of available blades, which can be installed simply by clicking on the Install link next to the desired item in the server manager.

Blades are developed and made available by Mitel Networks Corporation or by the open source developer community and are split into categories. "Supported" blades have been veriﬁed by our development staff and ServiceLink subscribers will be able to obtain support for the installation and conﬁguration of those blades. "Unsupported" blades are typically those contributed by the open source community and for which no technical support is directly available from Mitel Networks Corporation.

Clicking on "Blades" in the server manager’s navigation menu will show a list of available software blades which can be installed on your system:

When blades are installed, many of them will create a new panel in the server manager that allows you to conﬁgure the blade. However, some contributed blades may not be conﬁgurable through the server manager and may require use of the Linux command prompt.

Note that outside of blades, you can still customize your server using Linux utilities from the command prompt. However, blades provides a much simpler and easier way to perform this customization.

14.2. Backup or Restore

You can easily back up the contents of your SME Server V5 with ServiceLink using one of two methods. Both are controlled through

the web panel shown below.

Chapter 14. Administration

You have four actions you can perform, each of which is described in the following sections.

14.2.1. Backup To Desktop

The ﬁrst type of backup allows you to save a snapshot of your server conﬁguration onto your desktop computer. This will save all user accounts, user directories, i-bay contents and web content, as well as the conﬁguration parameters entered using the server console and the server manager. The web panel shows you the size of the backup ﬁle so that you can verify whether sufﬁcient space exists on your desktop machine.

When you choose Backup to desktop, a browser window will appear that will allow you to name the ﬁle and select the location on your desktop where the ﬁle will be saved.

14.2.2. Restore From Desktop

If you ever need to restore the original conﬁguration and ﬁles to your server, simply select Restore from desktop and a browser window will prompt you to select the backup ﬁle from your desktop. Restoration of the information is automatic.

Warning

Ideally you should use Restore from desktop on a freshly installed server.Therefore, if you are planning to do a restore, you should ﬁrst re-install the SME Server V5 with ServiceLink software and then perform the "Restore from desktop" command.

Chapter 14. Administration

14.2.3. Verify Desktop Backup File

This option allows you to verify that the backup to disk was completed successfully. In rare cases we have found that users ran out of disk space on their client PC while doing the backup to desktop. This options allows you to verify whether or not the backup did in fact complete successfully.

14.2.4. Conﬁgure Tape Backup

The second type of backup involves conﬁguring your system to perform a daily full system backup to a tape drive using a software package called ﬂexbackup. If you wish to activate this option, check the box next to Enable Tape Backup and then specify the time at which you wish the backup to occur and the time at which reminder notices should be sent.

Be aware that you must use a supported tape drive and that a tape must be inserted in the drive for the backup to work.

Note: Reminder e-mail messages for tape backups are automatically sent to the e-mail address that is conﬁgured to receive administrative notices. This is normally the user admin, but you can change this by going to the Other e-mail settings screen in the server manager.

14.2.5. Restore From Tape

If you are performing regular backups, you can also restore user data and conﬁguration settings by using the Restore From Tape option. After you press the Perform button, the system will read the ﬁles from tape and overwrite any currently existing ﬁles. You must reboot your system after the restore for the changes to take effect. Note that in order to restore data from tape, you must have ﬁrst checked off Enable Tape Backup and scheduled nightly backups. If you have not done this, you will not be able to restore from tape using the server manager.

Note that this restore procedure only restores user data and conﬁguration information. It does not restore system ﬁles. If you experienced a serious system crash, you should ﬁrst re-install the SME Server V5 with ServiceLink software and then perform a restore from tape.

14.3. Reinstallation Disk

Chapter 14. Administration

Warning

Using this section of the server manager, you can create a reinstallation diskette which will aid in the recovery process in the unlikely event that you encounter a system failure and are required to reinstall the software. The reinstallation diskette will record system and network conﬁguration data for your current system so that you will not need to re-enter that information when you reinstall.

Warning

Each time you alter your system conﬁguration, you MUST make a new reinstallation disk (or overwrite your old one). Otherwise, your existing reinstallation disk will not contain your updated conﬁguration data - which means that after reinstalling the software, you will not automatically see your most recent data.

Note: Be aware that when you are performing this task, the diskette must be in the server diskette drive, NOT the diskette drive of your local desktop computer.

Chapter 14. Administration

Note that this reinstallation disk serves a different purpose than the "emergency boot disk" you created as part of the original software installation process. The emergency boot disk allows you to boot your server if you are unable to boot from the hard disk for some reason. For instance, this could occur due to a hardware error or through a mis-conﬁguration of the LILO boot loader during an advanced customization procedure. The emergency boot diskette does not change your software or make any other adjustments to your system.

The reinstallation disk, on the other hand, will boot your system directly into the software installation process and will completely reinstall the SME Server V5 with ServiceLink software. It will, however, save you the steps of entering all the network conﬁguration data and allow you to simply move through the conﬁguration screens using the "Keep" option.

14.4. Mail Log File Analysis

If you are using your SME Server V5 with ServiceLink to send and receivee-mail, there are now a number of reports available that can help you analyze your system’s performance. As shown in the image below, the default setting provides basic statistics. If you pop up the menu, however, you will see a range of other options. If you suspect that there is a problem with the delivery of your e-mail, you can use these reports to see how your system is operating. The information can also help you decide how best to optimize your system.

Chapter 14. Administration

14.5. View Log Files

This panel allows you to view the system log ﬁles on you server. As shown in the image below, you select the log ﬁle that you want to view and press the "ViewLog File" button. Without any ﬁlter options, you will see the entire log ﬁle.

You will probably ﬁnd the log ﬁle of most interest to be messages where most of the system services write log messages. If you enter any text in the "Filter Pattern" box, only lines of the log ﬁle containing that text will be displayed. If you enter any text in the "Highlight Pattern" box, that text will be shown in bold. Both options can be used together. Be aware that the ﬁlter is case-sensitive.

As an example, if you were interested in messages relating to DHCP,you could examine the log ﬁle messages with a ﬁlter pattern of DHCP. This will show you all DHCP-related messages. If you further add a highlight pattern of DHCPACK, the messages relating to DHCP acknowledgements will appear in bold.

14.6. Reboot or Shutdown

If you need to shut down or reboot your server, using this screen will ensure that the shutdown sequence occurs gracefully, preserving all conﬁguration and information on your server. There is a similar function in the server console as well. Note that this screen initiates the shutdown or reboot immediately after you click the "Perform" button.

Chapter 15. Miscellaneous

15.1. Online manual

This link will take you directly from the server manager to the online manual available at http://www.e-smith.org/docs/manual/. Note that you must be connected to the Internet to read the online manual.

15.2. Create Starter Web Site

If you already have a customized web site, you should not use this section, since it will overwrite your index.htm ﬁle. If you do not have a customized web site and wish to create your starter home page, simply ﬁll out the appropriate ﬁelds. This will

create an attractive, basic home page that you can visit by entering your domain name for your site, http://www.yourdomain.xxx, in your web browser. Note that, as previously explained, there is typically a delay of one or more days before your ISP publishes your domain address records. On your local network, you can use "http://www/" to view your starter web site.

At any point in the future, you can replace or revise your starter web page by replacing or revising the ﬁles in the html directory on your server. The html directory for your web site can be accessed using Windows ﬁle sharing. Ensure you are logged onto your network using the admin name and password and then use ﬁle sharing to go to the server. Select the "primary" directory and then select the "html" directory. If you are using FTP, you can access the html directory by looking under ﬁles/primary/html.

Chapter 15. Miscellaneous

15.3. Support and Licensing

This section allows you to reviewthe support and licensing terms attached to your SME Server V5 with ServiceLink. It also provides contact information for Mitel Networks Corporation and our Authorized Partners.

15.4. Other Administration Notes

Accessing administrative areas of your server via Windows ﬁle sharing: To access administrative areas of your server using Windowsﬁle sharing, you must be logged into your network as "admin" with the server system password. This applies particularly to the NETLOGON share (where you can edit the netlogon.bat ﬁle), the Primary share (where the main web site is stored) and any i-bays that are writable only by the user admin.

Chapter 16. Information Bays (i-bays)

Information bays, or i-bays, are a unique feature built into your SME Server V5 with ServiceLink. i-bays are a powerful, simple, ﬂexible mechanism for creating distinct information-sharing sites. The network administrator can deﬁne several characteristics for each new i-bay they create:

• write access: the administrator can control access to the i-bay by associating the i-bay with a group. All groups previously created

in the groups section of the server manager will appear in the drop-down menu under "group" in this section. In addition, two default groups will always appear - "administrator" and "everyone" (meaning all users, whether on the local network or on the Internet).

• user access via ﬁle-sharing or FTP: The administrator can also control who has the ability to save a ﬁle into or modify the

contents of the ﬁles in the i-bay (write access) and who has the ability to view the contents of the i-bay (read access). The administrator can specify whether the entire group can write to the i-bay or whether the administrator alone has the power to save ﬁles to the i-bay. Similarly, the administrator can control whether group members only can read the contents of the i-bay or whether the contents can be read by anyone.

• password protection: the administrator can specify whether a password is required to access an i-bay from the Internet and what

that password will be.

Note: If you select Password Required, users who connect to the i-bay via FTP or HTTP will be prompted to supply that particular i-bay’susername and password. The user name is always the name of the i-bay and the password is whateverthe administrator assigns to that i-bay - not the individual user’s password. Note that, as with user accounts, i-bay accounts are locked out by default. If a password is required, users will not be able to access the i-bay until the administrator sets the password.

i-bays are simple to create and manage. The "Information bays" section of the server manager shows all current i-bays, the name of each i-bay and a description of its contents. In this section, you can delete an i-bay (which will delete all contents of the i-bay directory) and, if the i-bay requires a password, you can set it here. As with your user account directory, any i-bay that requires a password will appear in red until that password has been changed from "default" (the i-bay for Samson’s Farms in the following image is an example of this).

A note about i-bay names: When you create an i-bay, the name may be up to 12 characters long1and may contain only lower-case letters, numbers, periods and underscores. The i-bay name should also start with a lower-case letter. For example, johnson, sales and client3.prj8 are all valid names, while 3associates, John Smith and Bus-Partner are not. Finally, an i-bay cannot use the same name as an existing user or group account. It must be unique. Note that there are two special names, primary and public, which are in use by the system and cannot be used for an i-bay name.

1. This 12-character restriction ensures that the i-bay can be shared correctly to all Windows machines.

Chapter 16. Information Bays (i-bays)

16.1. i-bay Directories

Each i-bay has three directories - html, files and cgi-bin. (The cgi-bin directory is set aside to hold cgi scripts used for that i-bay’s web page. CGI scripts are tools used in advanced web-site creation and do not need to be discussed here.)

• the ﬁles directory: This directory holds ﬁles that can be accessed either locally only or publicly. It can be used for such things as a

company download site, a company-wide ﬁle sharing server, or a document sharing site for a speciﬁc customer.

• the HTML directory: When an i-bay is accessed using a web browser (via http), the user will enter the HTML directory and the

web browser will automatically open the index.html ﬁle in that i-bay. In other words, it will display the web page associated with that i-bay. This means you can have different web sites running on your server, each associated with a speciﬁc i-bay. This can be very powerful and useful, as you will see in the upcoming examples.

Note: If an i-bay is set for no public access via web or anonymous ftp, users connecting to the i-bay through Windows or Macintosh ﬁle sharing will see only the contents of the files directory. However, if the i-bay settings are later changed to allow public access through web or anonymous ftp, users will then see the top-level directory of the i-bay with the three subdirectories of

html, files and cgi-bin. The items they were used to seeing before will now be found in the files directory.

16.2. Accessing the i-bays

You can access the contents of an i-bay using a web browser, Windows ﬁle sharing / AppleTalk, or FTP.

• accessing an i-bay using a web browser (via http): To view an i-bay using a browser, enter "www.yourdomain.xxx/i-bayname".

For example, the URL for Samson’s Farms i-bay is "www.tofu-dog.com/samfarms". Assuming you are entitled to access this i-bay, you will see the index.html page in the html directory in the Samson’s Farms i-bay. If a password is required to see the contents of the i-bay, a password dialog box will appear before the contents of the i-bay are served to the web browser.

Chapter 16. Information Bays (i-bays)

• accessing an i-bay via Windows ﬁle sharing and AppleTalk: To access the i-bay using Windows ﬁle sharing or AppleTalk,

simply navigate to the server over your network browser (in Windows, this would be via "Network Neighborhood") and select the i-bay you want to enter from those appearing. You can only access an i-bay in this way if you are on the local network.

• accessing an i-bay via the FTP server: FTP ( File Transfer Protocol) is a relatively easy way to transfer ﬁles over the Internet

from one computer to another.

In the next few sections, we will take a look at some examples of i-bays that have been created by our hypothetical catering and event-planning company, The Pagan Vegan, to demonstrate their capabilities.

16.3. Creating an i-bay

No matter how you are going to use an i-bay, the process of creating an i-bay starts by clicking on the "Click here" link at the top of the Information Bays panel in the server manager. You will be presented with the form shown in the image below.

You now need to ﬁll out the form providing the information and making the choices described below. Note that the ftp access described below can be overridden by the FTP access limits setting on the Remote access panel of the server manager. If you choose to "Disable public FTP access" there, ftp access for individual i-bays will not be allowed, even though you will appear to be able to enable it from the i-bay conﬁguration screen.

• Information bay name: This is the short name of the i-bay (subject to the 12-character length restriction mentioned earlier). The

i-bay name will be what users will enter in the URL after the hostname to access the i-bay from the web. For instance, if public access is enabled, an i-bay named ’intranet’ can be accessed by the Pagan Veganstaff at ’http://www.tofu-dog.com/intranet/’.

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Mitel SME Server V5 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual