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Contents
Introduction--1
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Establishing Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recovering from a Lost Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Rack PDU Front Panel--11
Command Line Interface--14
About the Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Logging on to the Command Line Interface . . . . . . . . . . . . . . . . . . . . 14
About the Main Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using the Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Command Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Command Response Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Network Management Card Command Descriptions . . . . . . . . . . . . . 23
Device Command Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Web Interface--54
Supported Web Browsers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Logging On to the Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Web Int er face Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
About the Home Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Device Management--62
About the Device Manager Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Viewing the load status and peak load . . . . . . . . . . . . . . . . . . . . . . . . 62
Configuring Load Thresholds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
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Configuring the Name and Location of the Rack PDU . . . . . . . . . . . . 64
Resetting Peak Load and kWh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
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Environment--65
Configuring Temperature and Humidity Sensors . . . . . . . . . . . . . . . . 65
Configuring Dry Contact Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Logs--68
Using the Event and Data Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Administration: Security--76
Local Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Remote Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Configuring the RADIUS Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Inactivity Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Adminis tration: Network Features--81
TCP/IP and Communication Settings . . . . . . . . . . . . . . . . . . . . . . . . . 81
Port Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
SNMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
FTP Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Administration: Notification--98
Event A cti o n s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Active , Au to matic, Direct N o ti fi cation . . . . . . . . . . . . . . . . . . . . . . . 101
Administration: General Options--108
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Set the D ate and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Use an .ini F i le . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Event Log and Temperature Units . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Reset th e R ack PDU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
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Configure Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
About the Rack PDU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
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How to Export Configuration Settings--115
Retrieving and Exporting the .ini File. . . . . . . . . . . . . . . . . . . . . . . . 115
The Upload Event and Error Messages . . . . . . . . . . . . . . . . . . . . . . 119
File Transf er s --121
How to Upgrade Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Firmware File Transfer Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Verifying Upgrades and Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Troubleshooting--127
Rack PDU Access Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Appendix A: List of Supported Commands--129
Appendix B: Security Handbook--131
Content and Purpose of This Appendix . . . . . . . . . . . . . . . . . . . . . . 131
Security Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Creating and Installing Digital Certificates. . . . . . . . . . . . . . . . . . . . 140
Firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Using the Rack PDU Security Wizard . . . . . . . . . . . . . . . . . . . . . . . . 145
Create a Root Certificate and Server Certificates. . . . . . . . . . . . . . . 148
Create a Server Certificate and Signing Request . . . . . . . . . . . . . . . 152
Create an SSH Host Key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Comm an d L ine Interface Access and Security. . . . . . . . . . . . . . . . . 158
Telnet and Secure SHell (SSH). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Web Interface Access and Security: HTTP and HTTPS (with SSL) . . 159
Supported RADIUS Functions and Servers . . . . . . . . . . . . . . . . . . . 163
Configure the Rack PDU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Configure the RADIUS Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
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Introduction
Product Features
The Dell® Metered Rack Power Distribution Unit (PDU) is a stand-alone, networkmanageable power distribution device that monitors the current, voltage, and power for
the Rack PDU.
You can manage a Rack PDU through its Web interface, its command line interface, or
Simple Network Management Protocol (SNMP):
• Access the Web interface using Hypertext Transfer Protocol or using secure HTTP
(HTTPS) with Secure Sockets Layer (SSL). See Logging On to the Web Interface.
• Access the command line interface through a serial connection, Telnet, or Secure
SHell (SSH). See About the Command Line Interface.
• Use an SNMP browser and the Dell Management Information Base (MIB) to manage
your Rack PDU.
Rack PDUs have these additional features:
• Voltage, current, and power monitoring for the device and each phase as applicable.
• Configurable alarm thresholds that provide network and visual alarms to help avoid
overloaded circuits.
• Three levels of user access accounts: Administrator, Device User, and
Read-Only User.
• Event and data logging. The event log is accessible by Telnet, Secure CoPy (SCP),
File Transfer Protocol (FTP), serial connection, or Web browser (using HTTPS
access with SSL, or using HTTP access). The data log is accessible by Web
browser, SCP, or FTP.
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• E-mail notifications for Rack PDU and system events.
• SNMP traps, Syslog messages, and e-mail notifications based on the severity level
or category of the Rack PDU and system events.
• Security protocols for authentication and encryption.
The Rack PDU does not provide power surge protection. To ensure
that the device is protected from power failure or power surges,
connect the Rack PDU to an uninterruptible power supply (UPS).
Access priorities for logging on
Only one user at a time can log on to the Rack PDU. The priority for access, beginning
with the highest priority, is as follows:
• Local access to the command line interface from a computer with a direct serial
connection to the Rack PDU
• Telnet or Secure SHell (SSH) access to the command line interface from a remote
computer
• Web access
See SNMP for information about how SNMP access to the Rack PDU is
controlled.
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Types of user account s
The Rack PDU has three levels of access (Administrator, Device User, and Read-Only
User), which are protected by user name and password requirements.
• An Administrator can use all of the menus in the Web interface and all of the
commands in the command line interface. The default user name and password are
both admin.
• A Device User can access only the following:
– In the Web interface, the menus on the Device Manager tab, the Environment
tab, and the event and data logs, accessible under the Events and Data headings
on the left navigation menu of the Logs tab. The event and data logs display no
button to clear the log.
– In the command line interface, the equivalent features and options.
The default user name and password are both device.
• A Read-Only User has the following restricted access:
– Access through the Web interface only.
– Access to the same tabs and menus as a Device User, but without the capability to
change configurations, control devices, delete data, or use file transfer options.
Links to configuration options are visible but disabled. The event and data logs
display no button to clear the log.
The default user name and password are both readonly.
To set User Name and Password values for the three account types, see
Setting user access.
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Getting Started
To start using the Rack PDU:
1. Install the Rack PDU using the Rack Power Distribution Unit Installation
Instructions that were shipped with your Rack PDU.
2. Apply power and connect to your network. Follow the directions in the Rack
Power Distribution Unit Installation Instructions.
3. Establish network settings. (See Establishing Network Settings.)
4. Begin using the Rack PDU by way of one of the following:
• Web Interface
• Command Line Interface
• Rack PDU Front Panel
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Establishing Network Settings
You must configure the following TCP/IP settings before the Rack PDU can operate on
a network using one of the following:
• IP address of the Rack PDU
• Subnet mask
• Default gateway
If a default gateway is unavailable, use the IP address of a computer
that is located on the same subnet as the Rack PDU and that is
usually running. The Rack PDU uses the default gateway to test the
network when traffic is very light.
Do not use the loopback address (127.0.0.1) as the default gateway
address for the Rack PDU. It disables the card and requires you to
reset TCP/IP settings to their defaults using a local serial login.
TCP/IP conf iguration methods
Use one of the following methods to define the TCP/IP settings needed by the Rack
PDU:
• Appendix B: Security Handbook
• BOOTP and DHCP configuration
• Command Line Interface
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BOOTP and DHCP configu r a tion
The Rack PDU default TCP/IP configuration setting of BOOTP & DHCP assumes that
a properly configured BOOTP or DHCP server is available to provide TCP/IP settings
to Rack PDUs. The Rack PDU first attempts to discover a properly configured BOOTP
server, and then a DHCP server. It repeats this pattern until it discovers a BOOTP or
DHCP server.
A user configuration (INI) file can function as a BOOTP or DHCP boot file. For more
information, see Use an .ini File.
BOOTP. For the Rack PDU to use a BOOTP server to configure its TCP/IP settings, it
must find a properly configured RFC951-compliant BOOTP server.
In the BOOTPTAB file of the BOOTP server, enter the Rack PDU’s MAC address, IP
address, subnet mask, and default gateway, and, optionally, a bootup file name. Look
for the MAC address on the bottom of the Rack PDU or on the Quality Assurance slip
included in the package.
When the Rack PDU reboots, the BOOTP server provides it with the TCP/IP settings.
• If you specified a bootup file name, the Rack PDU attempts to transfer that file from
the BOOTP server using TFTP or FTP. The Rack PDU assumes all settings specified
in the bootup file.
• If you did not specify a bootup file name, you can configure the other settings of the
Rack PDU remotely through its Web Interface or Command Line Interface.
To create a bootup file, see your BOOTP server documentation.
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DHCP. You can use an RFC2131/RFC2132-compliant DHCP server to configure the
TCP/IP settings for the Rack PDU.
This section summarizes the Rack PDU’s communication with a
DHCP server. For more det ail about how a DHCP server can configure
the network settings for a Rack PDU, see DHCP response options.
1. The Rack PDU sends out a DHCP request that uses the following to identify
itself:
• A Vendor Class Identifier
• A Client Identifier (by default, the MAC address of the Rack PDU)
• A User Class Identifier (by default, the identification of the application firmware
installed on the Rack PDU)
2. A properly configured DHCP server responds with a DHCP offer that includes
all the settings that the Rack PDU needs for network communication. The
DHCP offer also includes the Vendor Specific Information option (DHCP option
43). The Rack PDU can be configured to ignore DHCP offers that do not
encapsulate the vendor cookie in DHCP option 43 using the following
hexadecimal format. (The Rack PDU does not require this cookie by default.)
Option 43 = 01 04 31 41 50 43
Where:
• The first byte (01) is the code.
• The second byte (04) is the length.
• The remaining bytes (31 41 50 43) are the vendor cookie.
See your DHCP server documentation to add code to the Vendor
Specific Information option.
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Note: By selecting the Require vendor specific cookie to accept
DHCP Address check box in the Web interface, you can require the
DHCP server to provide a vendor cookie, which supplies information
to the Rack PDU Administration > Network>TCP/IP>DHCP.
Command Line Interface
1. Log on to the command line interface. See Logging on to the Command Line
Interface.
2. Contact your network administrator to obtain the IP address, subnet mask, and
default gateway for the Rack PDU.
3. Use these three commands to configure network settings. (Text in italics
indicates a variable.)
a. tcpip -i yourIPaddress
b. tcpip -s yourSubnetMask
c. tcpip -g yourDefaultGateway
For each variable, type a numeric value that has the format xxx.xxx.xxx.xxx.
For example, to set a system IP address of 156.205.14.141, type the following
command and press E
tcpip -i 156.205.14.141
4. Type exit. The Rack PDU restarts to apply the changes.
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Recovering from a Lost Password
You can use a local computer (a computer that connects to the Rack PDU or other
device through the serial port) to access the command line interface.
1. Select a serial port at the local computer, and disable any service that uses that
port.
2. Connect the provided serial cable to the selected port on the computer and to
the Serial port at the Rack PDU.
®
3. Run a terminal program (such as HyperTerminal
port for 9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.
) and configure the selected
4. Press
are unable to display the User Name prompt, verify the following:
– The serial port is not in use by another application.
– The terminal settings are correct as specified in step 3.
– The correct cable is being used as specified in step 2.
5. Press the Reset button. The Status LED will flash alternately orange and green.
Press the Reset button a second time immediately while the LED is flashing to
reset the user name and password to their defaults temporarily.
6. Press
then use, dell, for the user name and password. (If you take longer than 30
seconds to log on after the User Name prompt is redisplayed, you must repeat
step 5 and log on again.)
7. At the command line interface, use the following commands to change the User
Name and Password settings, both of which are now dell:
user -an yourAdministratorName
user -ap yourAdministratorPassword
ENTER, repeatedly if necessary, to display the User Name prompt. If you
ENTER, repeatedly if necessary, to display the User Name prompt again,
For example, to change the Administrator user name to Don Adams, type:
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user -an Don Adams
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8. Type quit or exit to log off, reconnect any serial cable you disconnected, and
restart any service you disabled.
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Rack PDU Front Panel
Item Function
Dry contact inputs Connector for two dry contact devices.
pdu0516a
Phase LEDs
Note: for single-phase Rack
PDUs, on ly on e LED is
present.
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LED display Shows the phase current for the currently
When no alarms are present, the LED display
shows a phase current, and a green Phase LED
indicates for which phase. The system
automatically cycles through each phase,
displaying the phase current for three seconds.
If an alarm is present for one phase, the applicable
Phase LED turns on and stays on while the alarm
conditi o n is pr es ent . The LED wi l l illuminate oran ge
for a W arning alarm or red for a Critical alarm. If an
alarm is present for more than one phase, the
system will automatically cycle through each phase
with an alar m, il lu minat ing t he Pha se LE Ds fo r thr ee
seconds.
illuminated Phase LED.
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Item Function
Function button • To manually display the current for each phase,
repeatedly press the button. The current displays
for 30 s econ ds o r un ti l y ou pre s s t he b ut t on ag ai n.
(This functionality is not avai l abl e fo r s ing le - pha se
Rack PDUs.)
• To display the IP address, press and hold for five
seconds until IP appears; then release. On the
LED display, the address will appear two digits at
a time and then the cycle will repeat.
• To invert the display, press and hold for ten
seconds until the AA pattern appears. Continue
holding the button until AA is oriented as desired
then release the button.
10/100 Base-T Connector Port for connecting the Rack PDU to the network.
10/100 LED See 10/100 LED.
Network Status LED See Network Status LED.
Temp/Humidity sensor port Port for connecting a Rack PDU Temperature
Sensor (G853N) or a Rack PDU Temperature/
Humidity Sensor (H621N).
RJ-45 Serial Port Port for connecting the Rack PDU to a terminal
emulator program for local access to the command
line interface. Use the supplied ser ial cable.
Reset Button To restart the interface of the Rack PDU without
affecting the outlets, press and release the Reset
button.
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Network St atus LED
Condition Description
Off The Rack PDU is connected to an unknown ne twork.
Solid Green The Rack PDU has valid TCP/IP settings.
Flashing Green The Rack PD U does not have valid TCP/IP settings.
Solid Orange A hardwar e failure has been detected in the Rack PDU.
Flashing Orange The Rack PDU is making BOOTP requests.
Flashing Orange and
Green (alternating)
10/100 LED
Condition Description
Off The device that connects the Rack PDU to the network is off or
Flashin g Green The R ack PDU is rec eivi ng dat a p acke ts f rom the n etwo rk at 10
Flashing Orange The Rack PDU is receiving data packets from the network at
Solid Green or
Orange
The Rack PDU is making DHCP requests.
not operating correctly.
Megabits per second (Mbps).
100 Megabits per second (Mbps).
The Rack PDU is receiving no network traffic.
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Command Line Interface
About the Command Line Interface
You can use the command line interface to view the status of and manage the Rack
PDU. In addition, the command line interface enables you to create scripts for
automated operation.
You can configure all parameters of a Rack PDU (including those for which there are
not specific CLI commands) by using the CLI to transfer an INI file to the Rack PDU.
The CLI uses XMODEM to perform the transfer. However, you cannot read the current
INI file through XMODEM.
Logging on to the Command Line Interface
To access the command line interface, you can use either a local (serial) connection or
a remote (Telnet or SSH) connection with a computer on the same local area network
(LAN) as the Rack PDU.
Remote access to the command line interface
You can access the command line interface through Telnet or SSH. Telnet is enabled
by default. Enabling SSH disables Telnet.
To enable or disable these access methods, use the Web interface. On the
Administration tab, select Network on the top menu bar, and then the access option
under Console on the left navigation menu.
Telnet for basic access. Telnet provides the basic security of authentication by user
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name and password, but not the high-security benefits of encryption.
To use Telnet to access the command line interface:
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1. From a computer on the same network as the Rack PDU, at a command prompt,
type telnet and the IP address for the Rack PDU (for example, telnet
139.225.6.133, when the Rack PDU uses the default Telnet port of 23), and
press
If the Rack PDU uses a non-default port number (from 5000 to 32768), you must
include a colon or a space, depending on your T elnet client, between the IP address
(or DNS name) and the port number.
2. Enter the user name and password (by default, admin and admin for an
Administrator, or device and device for a Device User).
SSH for high-security access. If you use the high security of SSL for the Web
interface, use SSH for access to the command line interface. SSH encrypts user
names, passwords, and transmitted data. The interface, user accounts, and user
access rights are the same whether you access the command line interface through
SSH or Telnet, but to use SSH, you must first configure SSH and have an SSH client
program installed on your computer.
ENTER.
If you cannot remember your user name or password, see
Recovering from a Lost Password.
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Local access to the command line interface
For local access, use a computer that connects to the Rack PDU through the serial port
to access the command line interface:
1. Select a serial port at the computer and disable any service that uses that port.
2. Connect the supplied serial cable from the selected serial port on the computer to
the serial port on the Rack PDU.
3. Run a terminal program (e.g., HyperTerminal) and configure the selected port for
9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.
4. Press
ENTER, and at the prompts, enter your user name and password.
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About the Main Screen
Dell Corporation Network Management Card AOS vx.x.x
(c)Copyright 2009 All Rights Reserved RPDUD PPPP vx.x.x
------------------------------------------------------------------------- Name : Test Lab Date : 10/30/2009
Contact : Don Adams Time : 5:58:30
Location : Building 3 User : Administrator
Up Time : 0 Days, 21 Hours, 21 Minutes Stat : P+ N+ A+
cli>
The main screen that is displayed when you log on to the command line interface
of a Rack PDU:
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Main screen information fields:
• Two fields identify the operating system (AOS) and application (APP) firmware
versions. The application firmware name identifies the type of device that connects to
the network. In the preceding example, the application firmware for the Rack PDU is
displayed.
Network Management Card AOSvx.x.x
RPDUD vx.x.x
• Three fields identify the system name, contact person, and location of the Rack PDU.
(In the control console, use the System menu to set these values.)
Name: Test Lab
Contact: Don Adams
Location: Building 3
•An Up Time field reports how long the Rack PDU has been running since it was last
turned on or reset.
Up Time: 0 Days, 21 Hours, 21 Minutes
• Two fields identify when you logged in, by date and time.
Date: 10/30/2009
Time: 5:58:30
•A User field identifies whether you logged in through the Administrator or Device
user account. (The Read-Only User account cannot access the control console.)
User : Administrator
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•A Stat field reports the Rack PDU status.
Stat : P+ N+ A+
P+ The Dell operating system is functioning properly.
N+ The network is functioning properly.
N? A BOOTP request cycle is in progress.
N– The Rack PDU failed to connect to the network.
N! Another device is using the Rack PDU IP address.
A+ The application is functioning properly.
A– The application has a bad c hecksum.
A? The application is in itializing.
A! The application is not compatible with the AOS.
If P+ is not displayed, contact Dell support staff.
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Using the Command Line Interface
At the command line interface, use commands to configure the Rack PDU. To use a
command, type the command and press
in lowercase, uppercase, or mixed case. Options are case-sensitive.
While using the command line interface, you can also do the following:
• Type ? and press
account type.
• To obtain information about the purpose and syntax of a specified command, type the
command, a space, and ? or the word help. For example, to view RADIUS
configuration options, type:
radius ?
or
radius help
• Press the
session. Use the
previous commands.
• T ype at least one letter of a command and press the
UP arrow key to view the command that was entered most recently in the
ENTER to view a list of available commands, based on your
UP and DOWN arrow keys to scroll through a list of up to ten
ENTER. Commands and arguments are valid
TAB key to scroll through a list of
valid commands that match the text you typed in the command line.
• Type exit or quit to close the connection to the command line interface.
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Command Syntax
Item Description
- Options are preceded by a hyphen.
< > Definitions of options are enclosed in angle brackets. For
example:
-dp <device password>
[ ] If a command accepts multiple op tions or an option accepts
mutually exclusive arguments, the values may be enclosed in
brackets.
| A vertical line between items enclosed in brackets or angle
brackets indicates that the items are mutual ly exclusive. You must
use one of the items.
Example of a com m and that supports m ultiple options :
user [-an <admin name>] [-ap <admin password>]
In this example, the user command accepts the option -an, which defines the
Administrator user name, and the option -ap, which defines the Administrator
password. To change the Administrator user name and password to XYZ:
1. Type the user command, one option, and the argument XYZ:
user -ap XYZ
2. After the first command succeeds, type the user command, the second option, and
the argument XYZ:
user -an XYZ
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Example of a command that accepts mutually exclusive arguments for an
option:
alarmcount -p [all | warning | critical]
In this example, the option -p accepts only three argument s: all, warning, or critical. For
example, to view the number of active critical alarms, type:
alarmcount -p critical
The command will fail if you type an argument that is not specified.
Command Response Codes
The command response codes enable scripted operations to detect error conditions
reliably without having to match error message text:
The CLI reports all command operations with the following format:
E [0-9] [0-9] [0-9] : Message
Code Message Code Message
E000 Success E105 Command Prefill
E001 Successfully Issued E106 Command failed
E100 Command failed E200 Input error
E101 Command not found E201 No response
E102 Pa ra mete r e r r o r E202 User already exists
E103 Command line error E203 User do es no t exi s t
E104 User lev el denial E204 User do es no t ha ve
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access to this command
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Network Management Card Command Descriptions
?
Access: Administrator, Device User
Description: View a list of all the CLI commands available to your account type. To
view help text for a specific command, type the command followed by a question mark.
Example: To view a list of options that are accepted by the alarmcount command,
type:
alarmcount ?
about
Access: Administrator, Device User
Description: View hardware and firmware information. This information is useful in
troubleshooting and enables you to determine if firmware upgrade is needed.
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alarmcount
Access: Administrator, Device User
Description:
Option Arguments Description
-p all View the number of active alarms report ed by the Rack PDU.
Information about the alarms is provided in the event log.
warning View the number of active warning alarms.
critical View the number of acti ve critical alarms.
Example:
alarmcount -p warning
To view all active warning alarms, type:
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boot
Access: Administrator only
Description: Define how the Rack PDU will obtain its network settings, including the
IP address, subnet mask, and default gateway. Then configure the BOOTP or DHCP
server settings.
Option Argument Description
-b
<boot
mode>
-a remainDhcpBo
-o stop |
-f <#> bootp and dhcpBootp boot modes only. Enter the
-c enable | disable dhcp and dhcpBootp boot modes only. Enable or disable
dhcpBootp |
dhcp | bootp |
manual
otp |
gotoDhcpOrBo
otp
prevSettings
Define how the TCP/IP settings will be configured when the
Rack PDU turns on, resets, or restarts. See TCP/IP and
Communication Settings fo r information about each boot
mode setting.
dhcpBootp boot mode only. Sp eci fy whet her th e Rac k PDU
will retain the dhcpBootp boot mode setting or switch to
bootp or dhcp boot mode after it receives its network
settings.
bootp and dhcpBootp boot modes only. If the Rack PDU
receives no valid response to five requests for a network
assignment, stop requesting network settings until the Rack
PDU is restarted or use the previously configured settings
so the Rack PDU remains accessible.
number of retries that will occur when no valid response is
received, or zero (0) for an unlimited number of retries.
the requirement that the DHCP server provide the vendor
cookie.
-s <#> dhcp and dhcpBootp boot modes only. Enter the number
of retries that will occur when no val id response is received,
or zero (0) for an unlimited number of retrie s.
The defa ult v alues for these th ree settings generally do not nee d t o be changed:
-v <vendor class>: DELL
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-i <client id>: The MAC address of the Rack PDU, which un iquely identifie s it on th e
local area network (LAN)
-u <user class>: The name of the application firmware module
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Example: To use a DHCP server to obtain network settings:
1. Type boot -b dhcp
2. Enable the requirement that the DHCP server provide the vendor cookie:
boot -c enable
3. Define the number of retries that will occur if the Rack PDU does not receive a valid
response from the initial request: boot -s 5
cd
Access: Administrator, Device User
Description: Navigate to a folder in the directory structure of the Rack PDU.
Example 1: To change to the ssh folder and confirm that an SSH security certificate
was uploaded to the Rack PDU:
1. Type cd ssh and press
2. Type dir and press
Example 2: To return to the main directory folder, type:
cd ..
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ENTER.
ENTER to list the files stored in the SSH folder.
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date
Access: Administrator only
Defin ition: Configure the date used by the Rack PDU.
To configure an NTP server to define the date and time for the
Rack PDU, see Set the Date and Time.
Option Argument Description
-d <“dat est ri n g”> Configure th e c u rr en t d at e. Us e t he dat e fo r mat spe c if ie d by th e
date -f command.
-t <00:00: 00 > Configure t he cur re nt t im e, i n ho ur s, minu t es , a nd s e con ds. Us e
the 24-hour clock format.
-f mm/dd/yy |
dd.mm.yyyy |
mmm-dd-yy |
dd-mmm-yy |
yyyy-mm-dd
Example 1: To display the date using the format yyyy-mm-dd, type:
date -f yyyy-mm-dd
Example 2: To define the date as October 30, 2009, using the format configured in the
preceding example, type:
date -d “2009-10-30”
Example 3: To define the time as 5:21:03 p.m., type:
date -t 17:21:03
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Select the numerical format in which to display all dates in this
user interface. Each letter m (for month), d (for day), and y (for
year) represents one digit. Single-digit days and months are
displayed with a leading zero.
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delete
Access: Administrator only
Description: Delete the event or data log, or delete a file in the file system.
Argument Description
<file
name>
Example: To delete the event log:
1. Navigate to the folder that contains the file to delete. For example, to navigate to the
logs folder, type:
cd logs
2. To view the files in the logs folder, type:
dir
The file event.txt is listed.
3. Type delete event.txt.
Type the name of the file to delete.
dir
Access: Administrator, Device User
Description: View the files and folders stored on the Rack PDU.
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eventlog
Access: Administrator, Device User
Description: View the date and time you retrieved the event log, the status of the Rack
PDU, and the status of sensors connected to the Rack PDU. View the most recent
device events and the date and time they occurred. Use the following keys to navigate
the event log:
Key Description
ESC Close the event log and return to the command line interface.
NTER Update the log. Use this command to view events that were recorded after
E
you last retrieved the log.
SPACEBAR View the next page of the event log.
B View the preceding page of the event log. This command is not available at
the main page of the event log.
D Delete the event log. Follow the prompts to confirm or deny the deletion.
Deleted events cannot be retrieved.
exit
Access: Administrator, Device User
Description: Exit from the command line interface session.
format
Access: Administrator only
Description: Reformat the file system of the Rack PDU and erase all security
certificates, encryption keys, configuration settings, and the event and data logs.
To reset the Rack PDU to its default configuration, use the resetToDef
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FTP
Access: Administrator only
Description: Enable or disable access to the FTP server. Optionally, change the port
setting to the number of any unused port from 5001 to 32768 for added security.
Option Argument Definition
-p <port
number>
-S enable |
disable
Example: To change the TCP/IP port to 5001, type:
ftp -p 5001
Define the TCP/IP port that the FTP server uses to
communicate with the Rack PDU (21 by default). The FTP
server uses both the specified port and the port one nu mber
lower than the specified port.
Configure access to the FTP server.
help
Access: Administrator, Device User
Description: View a list of all the CLI commands available to your account type. To
view help text for a specific command, type the command followed by the help
command: user help
Example 1: To view a list of commands available to a Device User, type:
help
Example 2: To view a list of options that are accepted by the alarmcount command,
type:
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alarmcount ?
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ping
Access: Administrator, Device User
Description. Determine whether the device with the IP address or DNS name you
specify is connected to the network. Four inquiries are sent to the address.
Argument Description
<IP address or DNS
name>
Example: To determine whether a device with an IP address of 150.250.6.10 is
connected to the network, type:
ping 150.250.6.10
Ty p e an IP ad dre ss wit h th e for mat xxx.xxx.xxx.xxx, or the DNS
name configured by the DNS server.
portSpe ed
Access: Administrator
Description:
Option Arguments Description
-s auto | 10H |
10F | 100H |
100 F
Example:
To configure the TCP/IP port to communicate using 100 Mbps with
Define the communication speed of the Ethernet port. The
auto command enables the Ethernet devices to negotiate to
transmit at the highest possible speed. See Port Speed for
more in fo rma ti o n ab ou t th e po r t spee d se tti ng s.
half-duplex communication (communication in only one direction at a time), type:
portspeed -s 100H
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prompt
Access: Administrator, Device User
Description: Configure the command line interface prompt to include or exclude the
account type of the currently logged-in user. Any user can change this setting; all user
accounts will be updated to use the new setting.
Option Argument Description
-s long The pro m pt incl ud e s the ac c o u nt typ e of the c urr e nt ly lo gg e d- in
user.
short The default setting. The prompt is four characters long: cli>
Example: To include the account type of the currently logged-in user in the command
prompt, type:
prompt -s long
quit
Access: Administrator, Device User
Description: Exit from the command line interface session.
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radius
Access: Administrator only
Description: View the existing RADIUS settings, enable or disable RADIUS
authentication, and configure basic authentication parameters for up to two RADIUS
servers.
For a summary of RADIUS server configuration and a list of
supported RADIUS servers, see Configuring the RADIUS Server.
Additional authentication parameters for RADIUS servers are
available at the Web interface of the Rack PDU. See RADIUS for
more information.
For detailed information about configuring your RADIUS server,
see Appendix B: Security Handbook.
Option Argument D escription
-a local |
radiu sLocal |
radius
-p1
-p2
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<server IP> The server name or IP address of the primary or secondary
Configure RADI US authentication:
local—RAD IUS is disabled. Local authentication is enabled.
radiusLocal—RADIUS, then Local Authentication.
RADIUS and local authentication are enabled. Authentication
is requested from the RADIUS server fir st. If the RADIUS
server fails to respond, local authentication is used.
radius—RADIUS is enabled. Local authentication is
disabled.
RADIUS server.
OTE: RADIUS servers use port 1812 by default to
N
authenticate users. To us e a different port, add a colon
followed by the new port number to the end of the RADIUS
server name or IP address.
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Option Argument D escription
-s1
-s2
-t1
-t2
Example 1:
To view the existing RADIUS settings for the Rack PDU, type radius and press
ENTER.
Example 2: To enable RADIUS and local authentication, type:
radius -a radiusLocal
Example 3: To configure a 10-second timeout for a secondary RADIUS server, type:
radius -t2 10
<server
secret>
<server
timeout>
The shared s ecr et be tw een the pri mary or s eco nda ry RADI US
server and the Rack PDU.
The time in seconds that the Rack PDU waits for a response
from the primary or secondary RADIUS server.
reboot
Access: Administrator only
Description: Restart the interface of the Rack PDU.
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resetToDef
Access: Administrator only
Description:
Option Arguments Desc ription
-p all | keepip Reset all configurat ion changes, including event actions, device
settings, and, optionally, TCP/IP configuration set tings.
Example: To reset all of the configuration changes except the TCP/IP settings for the
Rack PDU, type:
resetToDef -p keepip
system
Access: Administrator only
Description:
Option Argument Des cription
-n <system
name>
-c <system
contact>
-l <system
location>
Example 1: To configure the device location as Test Lab, type:
system -l “Test Lab”
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Example 2: To configure the system name as Don Adams, type:
system -n “Don Adams”
Define th e d evice name, the name of th e p er son r esp onsi ble
for the device, and the physical location of the device.
OTE: If you define a value with more than one word, you
N
must enclose the value i n quotation mark s.
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tcpip
Access: Administrator only
Description: Manually configure these network settings for the Rack PDU:
Option Argument Description
-i <IP address> Type the IP address of the Rack PDU, using the for m at
xxx.xxx.xxx.xxx
-s <subnet mask> Type the subnet mask for the Rack PDU.
-g <gat ewa y> Ty p e t he I P add res s of th e def au lt gat eway. Do not use the
loopbac k address (127.0.0.1) as the default gateway.
-d <domain name> Type the DNS name configured by the DNS server .
-h <host name> Type the host name that the Rack PDU will use.
Example 1: To view the network settings of the Rack PDU, type tcpip and press
ENTER.
Example 2: To manually configure an IP address of 150.250.6.10 for the Rack
PDU, type:
tcpip -i 150.250.6.10
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user
Access: Administrator only
Description: Configure the user name and password for each account type, and
configure the inactivity timeout.
For information on the permissions granted to each account type
(Administrator, Device User, and Read-Only User), see Types of
user accounts.
Option Argument Description
-an
-dn
-rn
-ap
-dp
-rp
-t <minutes> Configure the time (3 minutes by default) that the system
<admin name>
<devi ce name>
<read-only
name>
<admin
password>
<device
password>
<read-only
password>
Set the case-sensitive u ser name fo r each account type.
The maximum length is 10 characters.
Set the case-sensitive password for each account type.
The maximum length is 32 characters. Blank passwords
(passwords with no characters) are not allowed.
waits before logging off an inactive user.
Example: To change the Administrator user name to XYZ, type:
user -an XYZ
To change the Administrator password to XYZ, type:
user -ap XYZ
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web
Access: Administrator only
Description: Enable access to the Web interface using HTTP or HTTPS.
For additional security, you can change the port setting for HTTP and HTTPS to any
unused port from 5000 to 32768. Users must then use a colon (:) in the address field of
the browser to specify the port number. For example, for a port number of 5000 and an
IP address of 152.214.12.114:
http://152.214.12.114:5000
Option Argument Definition
-S disable | http |
https
-ph <http port #> Define the TCP/IP port used by HTTP to communicate with
-ps <https port #> Define the TCP/IP port used by HTTPS to communicate with
Example: To prevent all access to the Web interface, type:
web -S disable
Conf ig ure ac c ess to the We b in te rfa c e. W h en HT TP S is
enabled, data is encrypted during tran smission and
authent icated by digital certificate.
the Rack PDU (80 by default).
the Rack PDU (443 by default).
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xferINI
Access: Administrator only
Description: Use XMODEM to upload an INI file while you are accessing the
command line interface through a serial connection. After the upload completes:
• If there are any system or network changes, the command line interface restarts and
you must log in again.
• If you selected a baud rate for the file transfer that is not the same as the default
baud rate for the Rack PDU, you must reset the baud rate to the default to reestablish
communication with the Rack PDU.
xferStatus
Access: Administrator only
Description: View the result of the last file transfer.
See Verifying Upgrades and Updates for descriptions of the
transfer result codes.
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Device Command Descriptions
devLowLoad
Access: Administrator, Device User
Description: Set or view the low-load threshold in Kilowatts for the device.
Example 1: To view the low-load threshold, type:
cli> devLowLoad
E000: Success
0.5 kW
Example 2: To set the low-load threshold, type:
cli> devLowLoad 1.0
E000: Success
devNearOver
Access: Administrator, Device User
Description: Set or view the near-overload threshold in kilowatts for the device.
Example 1: To view the near-overload threshold, type:
cli> devNearOver
E000: Success
20.5 kW
Example 2: To set the near-overload threshold, type:
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cli> devNearOver 21.3
E000: Success
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devOverLoad
Access: Administrator, Device User
Description: Set or view the overload threshold in kilowatts for the device.
Example 1: To view the overload threshold, type:
cli> devOverLoad
E000: Success
25.0 kW
Example 2: To set the overload threshold, type:
cli> devOverLoad 25.5
E000: Success
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devReading
Access: Administrator, Device User
Description: View the total power in kilowatts or total energy in kilowatt-hours for the
device.
Argument Definition
power View the total power in kilowatts
energy View the total energy in kilowatt-hours
Example 1: To view the total power, type:
cli> devReading power
E000: Success
5.2 kW
Example 2: To view the total energy, type:
cli> devReading energy
E000: Success
200.1 kWh
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humLow
Access: Administrator, Device User
Description: Set or view the low humidity threshold as a percent of the relative
humidity.
Example 1: To view the low humidity threshold, type:
cli> humLow
E000: Success
10 %RH
Example 2: To set the low humidity threshold, type:
cli> humLow 12
E000: Success
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humMin
Access: Administrator, Device User
Description: Set or view the minimum humidity threshold as a percent of the relative
humidity.
Example 1: To view the minimum humidity threshold, type:
cli> humMin
E000: Success
6 %RH
Example 2: To set the minimum humidity threshold, type:
cli> humMin 8
E000: Success
humReading
Access: Administrator, Device User
Description: View the humidity value from the sensor.
Example: To view the humidity value, type:
cli> humReading
E000: Success
25 %RH
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inNormal
Access: Administrator, Device User
Description: View the normal state for each dry contact input.
Example: To view the normal state for each dry contact input, type:
cli> inNormal
E000: Success
1: Open
2: Open
inReading
Access: Administrator, Device User
Description: View the current state of each dry contact input.
Example: To view the state of the dry contact inputs, type:
cli> inReading
E000: Success
1: Open
2: Open
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phLowLoad
Access: Administrator, Device User
Description: Set or view the phase low-load threshold in kilowatts. To specify phases,
choose from the following options. Type: all, a single phase, a range, or a commaseparated list of phases.
Example 1: To set the low-load threshold for all phases to 1 kW, type:
cli> phLowLoad all 1
E000: Success
Example 2: To view the low-load threshold for phases 1 through 3, type:
cli> phLowLoad 1-3
E000: Success
1: 1 A
2: 1 A
3: 1 A
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phNearOver
Access: Administrator, Device User
Description: Set or view the phase near-overload threshold in Kilowatts. To specify
phases, choose from the following options. Type: all, a single phase, a range, or a
comma-separated list of phases.
Example 1: To set the near-overload threshold for all phases to 10 kW, type:
cli> phNearOver all 10
E000: Success
Example 2: To view the near-overload threshold for phases 1 through 3, type:
cli> phNearOver 1-3
E000: Success
1: 10 A
2: 10 A
3: 10 A
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phOverLoad
Access: Administrator, Device User
Description: Set or view the phase overload threshold in kilowatts. To specify phases,
choose from the following options. Type: all, a single phase, a range, or a commaseparated list of phases.
Example 1: To set the overload threshold for all phases to 13 kW, type:
cli> phOverLoad all 13
E000: Success
Example 2: To view the overload threshold for phases 1 through 3, type:
cli> phOverLoad 1-3
E000: Success
1: 13 A
2: 13 A
3: 13 A
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phReading
Access: Administrator, Device User
Description: View the current, voltage, or power for a phase. Set or view the phase
near-overload threshold in kilowatts. To specify phases, choose from the following
options. Type: all, a single phase, a range, or a comma-separated list of phases.
Example 1: To view the measurement for current for phase 3, type:
cli> phReading 3 current
E000: Success
3: 4 A
Example 2: To view the voltage for each phase, type:
cli> phReading all voltage
E000: Success
1: 120 V
2: 120 V
3: 120 V
Example 3: To view the power for phase 2, type:
cli> phReading 2 power
E000: Success
2: 40 W
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prodInfo
Access: Administrator, Device User
Description: View information about the Rack PDU.
Example:
cli> prodInfo
E000: Success
AOS vX.X.X.X
Metered Rack PDU vX.X.X.X
Model: DELL6803
Present Outlets: 12
Switched Outlets: 0
Metered Outlets: 0
Max Current: 20 A
Phases: 1
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tempHigh
Access: Administrator, Device User
Description: Set or view the high-temperature threshold in either Fahrenheit or
Celsius.
Example 1: To set the high-temperature threshold to 70º Fahrenheit, type:
cli> tempHigh F 70
E000: Success
Example 2: To view the high-temperature threshold in Celsius, type:
cli> tempHigh C
E000: Success
21 C
Example 3: To view the high-temperature threshold in Fahrenheit, type:
cli> tempHigh F
E000: Success
70 F
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tempMax
Access: Administrator, Device User
Description: Set or view the max-temperature threshold in either Fahrenheit or
Celsius.
Example 1: To set the max-temperature threshold to 80º Fahrenheit, type:
cli> tempMax F 80
E000: Success
Example 2: To view the max-temperature threshold in Celsius, type:
cli> tempMax C
E000: Success
27 C
Example 3: To view the max-temperature threshold in Fahrenheit, type:
cli> tempMax F
E000: Success
80 F
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tempReading
Access: Administrator, Device User
Description: View the temperature value in either Fahrenheit or Celsius from the
sensor.
Example: To view the temperature value in Fahrenheit, type:
cli> tempReading F
E000: Success
51.1 F
whoami
Access: Administrator, Device User
Description: View the user name of the active user.
Example:
cli> whoami
E000: Success
admin
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Web Interface
Supported Web Browsers
You can use Microsoft® Internet Explorer® (IE) 7.x and higher (on Windows® operating
systems only), Firefox version 3.0.6 and higher, by Mozilla Corporation (on all operating
systems) to access the Rack PDU through its Web interface. Other commonly available
browsers also may work but have not been fully tested.
The Rack PDU cannot work with a proxy server. Before you can use a Web browser to
access the Rack PDU’s Web interface, you must do one of the following:
• Configure the Web browser to disable the use of a proxy server for the Rack PDU.
• Configure the proxy server so that it does not proxy the specific IP address of the
Rack PDU.
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Logging On to the Web Interface
Overview
You can use the DNS name or IP address of the Rack PDU for the URL address of the
Web interface. Use your case-sensitive user name and p assword to log on. The default
user name and password differs by account type:
• admin/admin for an Administrator
• device/device for a Device User
• readonly/readonly for a Read-Only User
If you are using HTTPS as your access protocol, your login credentials
are compared with information in a server certificate. If the certificate
was created with the Security Wizard and an IP address was specified
as the common name in the certificate, you must use an IP address to
log on to the Rack PDU. If a DNS name was specified as the common
name on the certificate, you must use a DNS name to log on.
For information about the Web page that appears when you log on to
the Web interface, see About the Home Tab.
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URL address formats
T ype the DNS name or IP address of the Rack PDU in the Web browser’s URL address
field and press
Explorer, you must include http:// or https:// in the URL.
Common brow ser error messages at log-on.
Error Message
“You are not authorized to view this p age” or
“Someone is currently logged in...”
“This page cannot be displayed.” Web access is
“Unable to connect.” Firefox
URL format examples.
• For a DNS name of Web1:
– http://Web1 if HTTP is your access mode.
– https://Web1 if HTTPS is your access mode.
• For a System IP address of 139.225.6.133 and the default Web server port (80):
ENTER. When you specify a non-default Web server port in Internet
Cause of the Error Browser
Someone else is
logged on
disabled, or the URL
was not correct
Interne t E x plor e r,
Firefox
Interne t E x plor e r
– http://139.225.6.133 if HTTP is your access mode.
– https//139.225.6.133 if HTTPS is your access mode.
• For a System IP address of 139.225.6.133 and a non-default Web server port (5000):
– http://139.225.6.133:5000 if HTTP is your access mode.
– https://139.225.6.133:5000 if HTTPS is your access mode.
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Web Interface Features
Read the following to familiarize yourself with basic Web interface features for your
Rack PDU.
Tabs
The following tabs are available:
•Home: Appears when you log on. View active alarms, the load status of the Rack
PDU, and the most recent Rack PDU events. For more information, see About the
Home Tab.
• Device Manager: View the load status for the Rack PDU, configure load
thresholds, and view and manage the peak load measurement. For more
information, see About the Device Manager Tab.
• Environment: View temperature and humidity sensor data, if sensors are connected
to the Rack PDU.
• Logs: View event, data, and system logs.
• Administration: Configure security, network connection, notification, and general
settings.
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Device status icons
At the upper right corner of every tab, one or more icons and accompanying text
indicate the current operating status of the Rack PDU:
Critical: A critical alarm exists, which requires immediate action.
Warning: An alarm condition requires attention and could jeopardize
your data or equipment if not addressed.
No Alarms: No alarms are present and the Rack PDU is operating
normally.
To return to the Home tab, click a device status icon from any tab.
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Quick Links
At the lower left of the interface, there are three configurable links. The default settings
follow:
• Link 1: dell.com
• Link 2: dell.com/home
• Link 3: dell.com/business
To reconfigure the links, see Configure Links.
Other Web interface features
• The IP address appears in the upper left corner.
• A context-sensitive Help link and Log off link are located in the upper right corner.
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About the Home Tab
Use the Home tab to view active alarms, the load status of the Rack PDU, and the
most recent Rack PDU events.
The Overview view
Path: Home > Overview
The top of the Overview indicates the alarm status. If one or more alarms are present,
the number and type of alarms are indicated with a link to the Alarm Status view,
where you can view descriptions of each alarm. If no alarms exist, the Overview
displays, “No Alarms Present.”
In the Load Status area, view the load for the device in kW and for the phases
in Amps, as applicable. The green, yellow, and red meter shows the current load
status: normal, near overload, or overload. Note that if a low load threshold was
configured the meter will also include a blue segment to the left of the green. Hover
over the colors to view the configured load thresholds.
Click More to go to the Device Manager tab to configure thresholds and to view and
manage peak load information.
In the device parameters area, view the name, contact, location, current rating, type of
user account accessing the Rack PDU, and the amount of time the Rack PDU has
been operating since the last reboot from either a power cycle or a reboot of the
Management Interface. [For more information, see Reset the Rack PDU.]
In the Recent Device Events area, view, in reverse chronological order, the events
that occurred most recently and the dates and times they occurred. A maximum of five
events are shown at one time. Click More Events to go to the Logs tab to view the
entire event log.
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The Alarm Status view
Path: Home > Alarm Status
The Alarm Status view provides a description of all alarms present.
For details about a temperature or humidity threshold violation, click the
Environment tab.
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Device Management
About the Device Manager Tab
Path: Device Manager
Use the Device Manager tab to perform the following:
• View the load status for the Rack PDU
• Configure load thresholds
• Configure a name and location for the Rack PDU.
• View and manage the peak load measurement
Viewing the load status and peak load
Path: D evice Manager > Load Management options
Use the Load Management menu options to view the load for the device and phases
(for a 3-phase Rack PDU). The indicator in the green, yellow , and red meter shows the
current load status: normal, near overload, or overload. If a low load threshold was
configured, the meter will include a blue segment to the left of the green. When viewing
the Device Load, the triangle above the meter indicates peak load.
Click kW | BTU in the upper right corner to toggle the load values
between kilowatts and British Thermal Units (BTU).
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Configuring Load Thresholds
Path: Device Manager > Load Management options
To configure load thresholds:
1. Click the Device Manager tab.
2. Using the Load Management menu, set the thresholds for the device and phases
(for a 3-phase Rack PDU). The configurable thresholds are Overload Alarm, Near
Overload Warning, and Low Load Warning.
3. Click Apply.
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Configuring the Name and Location of the Rack PDU
Path: Device Manager > Load Management > Device Load
The name and location you enter appear on the Home tab.
You can set the Name and Location through either the Device
Manager tab or the Administration tab. A change in one affects the
other.
1. Click the Device Manager tab, then device load from the Load Management
menu.
2. Enter a name and location.
3. Click Apply.
Resetting Peak Load and kWh
Path: D evice Manager > Device Load
1. Click the Device Manager tab, then device load from the Load Management
menu.
2. Click the Peak Load and Kilowatt-Hours check boxes as desired.
3. Click Apply.
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Environment
Configuring Temperature and Humidity Sensors
Path: Environment > Temperature & Humidity
Through the Temperature & Humidity page, when you have a temperature or a
temperature and humidity sensor connected to the Rack PDU, you can set thresholds
for Warning and Critical alarm generation (see Device status icons for details on each
type of alarm).
For temperature:
• If the high temperature threshold is reached, the system generates a Warning alarm.
• If the maximum temperature threshold is reached, the system generates a Critical
alarm.
Similarly, for humidity:
• If the low humidity threshold is reached, the system generates a Warning alarm.
• If the minimum humidity threshold is reached, the system generates a Critical alarm.
Click the thermometer symbol in the upper right corner to toggle
between fahrenheit and celsius.
To configure temperature and humidity sensors:
1. Enter values for minimum, maximum, high, and low thresholds.
2. Enter Hysteresis values. (See Hysteresis for details.)
3. Enable alarm generation as desired.
4. Click Apply.
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Hysteresis. This value specifies how far past a threshold the temperature or humidity
must return to clear a threshold violation.
• For Maximum and High temperature threshold violations, the clearing point is the
threshold minus the hysteresis.
• For Minimum and Low humidity threshold violations, the clearing point is the
threshold plus the hysteresis.
Increase the value for Temperature Hysteresis or Humidity Hysteresis to avoid multiple
alarms if temperature or humidity that has caused a violation then wavers slightly up
and down. If the hysteresis value is too low, such wavering can cause and clear a
threshold violation repeatedly.
Example of rising but wavering temperature: The maximum temperature threshold
is 85°F, and the temperature hysteresis is 3°F. The temperature rises above 85°F,
violating the threshold. It then wavers down to 84°F and then up to 86°F repeatedly, but
no clearing event and no new violation occur. For the existing violation to clear, the
temperature would have to drop to 82°F (3°F below the threshold).
Example of falling but wavering humidity: The minimum humidity threshold is 18%,
and the humidity hysteresis is 8%. The humidity falls below 18%, violating the
threshold. It then wavers up to 24% and down to 13% repeatedly , but no clearing event
and no new violation occur. For the existing violation to clear, the humidity would have
to rise to above 26% (8% past the threshold).
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Configuring Dry Contact Inputs
Path: Environment > Dry Contact Inputs
Through the Dry Contact Inputs page, view the current status and state for the dry
contacts, and configure the dry contacts.
Parameter Description
Name A name for this input contact. Maximum: 20 characters.
Alarm
Status
State The current state of this input contact: Closed or Open.
Alarm
Generation
Normal
State
Normal if th is inp ut co nt a ct i s no t rep or t in g an al ar m, or t he se v eri ty of the a l arm , if
this input contact is reporting an alarm
Enable or disable this input contact. When disabled, the contact generates no
alarm eve n wh en it is in the abn orm a l po s iti on
The normal (non-alarm) state of this input contact: Closed or Open.
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Logs
Using the Event and Data Logs
Event log
Path: Logs > Events > options
You can view, filter, or delete the event log. By default, the log displays all events
recorded during the last two days in reverse chronological order.
For lists of all configurable events and their current configuration, select the
Administration tab, Notification on the top menu bar, and by event under Event
Actions on the left navigation menu.
See Configuring by event.
To display the event log (Logs > Events > log):
• By default, view the event log as a page of the Web interface. The most recent event
is recorded on page 1. In the navigation bar below the log:
– Click a page number to open a specific page of the log.
– Click Previous or Next to view the events recorded immediately before or after the
events listed on the open page.
– Click << to return to the first page or click >> to view the last page of the log.
• To see the listed events on one page, click Launch Log in New Window from the
event log page to display a full-screen view of the log.
In your browser's options, JavaScript® must be enabled for you to use the
Launch Log in New Window button.
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You can also use FTP or Secure CoPy (SCP) to view the event log. See
How to use FTP or SCP to retrieve log files.
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To filter the log (Logs > Events > log):
• Filtering the log by date or time: To display the entire event log, or to change the
number of days or weeks for which the log displays the most recent events, select
Last. Select a time range from the drop-down menu, then click Apply. The filter
configuration is saved until the Rack PDU restarts.
To display events logged during a specific time range, select From. Specify the
beginning and ending times (using the 24-hour clock format) and dates for which to
display events, then click Apply. The filter configuration is saved until the Rack PDU
restarts.
• Filtering the log by event: To specify the events that display in the log, click Filter
Log. Clear the checkbox of an event category or alarm severity level to remove it
from view. Text at the upper right corner of the event log page indicates that a filter is
active.
As Administrator, click Save As Default to save this filter as the default log view for
all users. If you do not click Save As Default, the filter is active until you clear it or
until the Rack PDU restarts.
To remove an active filter, click Filter Log, then Clear Filter (Show All).
Events are processed through the filter using OR logic.
• Events that you do not select from the Filter By Severity list never
display in the filtered event log, even if the event occurs in a category
you selected from the Filter by Category list.
• Events that you do not select from the Filter by Category list never
display in the filtered event log, even if devices in the category enter an
alarm state you selected from the Filter by Severity list.
To delete t h e l o g (Logs > Eve n ts > log):
To delete all events recorded in the log, click Clear Log on the Web page that
displays the log. Deleted events cannot be retrieved.
To disable the logging of events based on their assigned severity level or
their event category, see Configuring by event.
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To configure rever se lookup (Logs > Events > reverse lookup):
Reverse lookup is disabled by default. Enable this feature unless you have no DNS
server configured or have poor network performance because of heavy network traffic.
With reverse lookup enabled, when a network-related event occurs, both the IP
address and the domain name for the networked device associated with the event are
logged in the event log. If no domain name entry exists for the device, only its IP
address is logged with the event. Since domain names generally change less
frequently than IP addresses, enabling reverse lookup can improve the ability to
identify addresses of networked devices that are causing events.
To resize the event log (Logs > Events > size):
By default, the event log stores 400 events. You can change the number of events the
log stores. When you resize the event log, all existing log entries are deleted. To avoid
losing log data, use FTP or SCP to retrieve the log before you enter a new value in the
Event Log Size field.
See How to use FTP or SCP to retrieve log files.
When the log is full, the older entries are deleted.
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Data log
Path: Logs > Data > options
The data log records the current and power for the device and phases (for a 3-phase
Rack PDU), as applicable, as well as temperature and humidity and dry contact data at
the specified time interval. Each entry is listed by the date and time the data was
recorded.
To display the data log (Logs > Data > log):
• By default, view the data log as a page of the Web interface. The most recent data
item is recorded on page 1. From the navigation menu below the log:
– Click a page number to open a specific page of the log.
– Click Previous or Next to view the data recorded immediately before or after the
data that is listed on the open page.
– Click << to return to the first page of the log, or click >> to view the last page of the
log.
• To see the listed data on one page, click Launch Log in New Window from the data
log page to display a full-screen view of the log.
In your browser's options, JavaScript must be enabled for you to use the
Launch Log in New Window button.
Alternatively , you can use FTP or SCP to view the data log. See How to use
FTP or SCP to retrieve log files.
To filter the log by date or tim e (Log s > Data > log):
To display the entire data log or to change the number of days or weeks for which the
log displays the most recent events, select Last. Select a time range from the dropdown menu, then click Apply. The filter configuration is saved until the device restarts.
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To display data logged during a specific time range, select From. Specify the beginning
and ending times (using the 24-hour clock format) and dates for which to display data,
then click Apply. The filter configuration is saved until the device restarts.
To delete t h e data log:
To delete all data recorded in the log, click Clear Data Log on the Web page that
displays the log. Deleted data cannot be retrieved.
To set the data collection interval (Logs > Data > interval):
Define, in the Log Interval setting, how frequently data is sampled and stored in the
data log, and view the calculation of how many days of data the log can store, based on
the interval you selected. When the log is full, the older entries are deleted. To avoid
automatic deletion of older data, enable and configure data log rotation, described in
the next section.
To configure dat a log rotation (Logs > Data > rotation):
Set up a password-protected data log repository on a specified FTP server. Enabling
rotation causes the contents of the data log to be appended to the file you specify by
name and location. Updates to this file occur at the upload interval you specify.
Parameter Description
Data Log Rotation Enable or disable (the default) data log rot ation.
FTP Server Address The loca tion of the FTP serv er wh ere th e da t a r e posi to ry fi le i s st or ed .
User Na me The user name required to send data to the repository file. This user
must also be configured to have read and write access to the data
repository file and the directory (folder) in which it is stored.
Password The password required to send data to the repository file.
File Path The pat h to th e r ep osi to ry file.
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Filename The name o f the repository file (an ASCII text file).
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Parameter Description
Delay X hours betwee n
uploads.
Upload every X minutes The number of minutes bet ween attempts to upload data to the file
Up to X times The maximum number of times the upload will be attempted after an
Until Upload Succeeds Attempt to upload the file until the transfer is completed.
To resize the data log (Logs > Data > si ze):
By default, the data log stores 400 events. You can change the number of data points
the log stores. When you resize the data log, all existing log entries are deleted. To
avoid losing log data, use FTP or SCP to retrieve the log before you enter a new value
in the Data Log Size field.
See How to use FTP or SCP to retrieve log files.
When the log is full, the older entries are deleted.
The number of hours between uploads of data to the file.
aft er an upload failure.
initial failure.
How to use FTP or SCP to retrieve log files
An Administrator or Device User can use FTP or SCP to retrieve a tab-delineated event
log file (event.txt) or data log file (data.txt) and import it into a spreadsheet.
• The file reports all events or data recorded since the log was last deleted or (for the
data log) truncated because it reached maximum size.
• The file includes information that the event log or data log does not display.
– The version of the file format (first field)
– The date and time the file was retrieved
– The Name, Contact, and Location values and IP address of the Rack PDU
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– The unique Event Code for each recorded event (event.txt file only)
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The Rack PDU uses a four-digit year for log entries. You may need to
select a four-digit date format in your spreadsheet application to display
all four digits.
If you are using the encryption-based security protocols for your system, use Secure
CoPy (SCP) to retrieve the log file.
If you are using unencrypted authentication methods for the security of your system,
use FTP to retrieve the log file.
See Appendix B: Security Handbook for information on available protocols
and methods for setting up the type of security you need.
To use SCP to retrieve the files. To use SCP to retrieve the event.txt file, use the
following command:
scp username@hostname_or_ip_address:event.txt ./event.txt
To use SCP to retrieve the data.txt file, use the following command:
scp username@hostname_or_ip_address:data.txt ./data.txt
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To use FTP to retrieve the files. To use FTP to retrieve the event.txt or data.txt file:
1. At a command prompt, type ftp and the IP address of the Rack PDU, and
press
If the Port setting for the FTP Server option (set through the Network menu of the
Administration tab) has been changed from its default (
default value in the FTP command. For Windows FTP clients, use the following
command, including spaces. (For some FTP clients, you must use a colon instead
of a space between the IP address and the port number.)
ftp>open ip_address port_number
2. Use the case-sensitive User Name and Password for Administrator or Device
User to log on. For Administrator, admin is the default for User Name and
Password. For the Device User, the defaults are device for User Name and
Password.
3. Use the get command to transmit the text of a log to your local drive.
ftp>get event.txt
or
ENTER.
21), you must use the non-
To set a non-default port value to enhance security for the FTP Server,
see FTP Server. You can specify any port from 5001 to 32768.
ftp>get data.txt
4. You can use the del command to clear the contents of either log.
ftp>del event.txt
or
ftp>del data.txt
You will not be asked to confirm the deletion.
• If you clear the data log, the event log records a deleted-log event.
• If you clear the event log, a new event.txt file records the event.
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5. Type
quit at the ftp> prompt to exit from FTP.
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Administration: Security
Local Users
Setting user access
Path: Ad ministration > Security > Local Users > options
The Administrator user account always has access to the Rack PDU.
The Device User and Read-Only User accounts are enabled by default. To disable the
Device User or Read-Only User accounts, select the user account from the left
navigation menu, then clear the Enable checkbox.
You set the case-sensitive user name and password for each account type in the same
manner. Maximum length is 10 characters for a user name and 32 characters for a
password. Blank passwords (passwords with no characters) are not allowed.
For information on the permissions granted to each account type
(Administrator, Device User, and Read-Only User), see Types of user
accounts.
Account Type Default User Name Default Passwor d Permitted Access
Administrator admin admin Web interface and command
Device User device device
Read-Only User readonly readonly Web interface only
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Remote Users
Authentication
Path: Administration > Security > Remote Users > Authentication Method
Use this option to select how to administer remote access to the Rack PDU.
For information about local authentication (not using the centralized
authentication of a RADIUS server), see the Appendix B: Security Handbook.
The Rack PDU supports the authentication and authorization functions of RADIUS
(Remote Authentication Dial-In User Service).
• When a user accesses the Rack PDU or other network-enabled device that has
RADIUS enabled, an authentication request is sent to the RADIUS server to
determine the user’s permission level.
• RADIUS user names used with the Rack PDU are limited to 32 characters.
Select one of the following:
• Local Authentication Only: RADIUS is disabled. Local authentication is enabled.
• RADIUS, then Local Authentication: RADIUS and local authentication are enabled.
Authentication is requested from the RADIUS server first. If the RADIUS server fails
to respond, local authentication is used
• RADIUS Only: RADIUS is enabled. Local authentication is disabled.
If RADIUS Only is selected, and the RADIUS server is unavailable,
improperly identified, or improperly configured, remote access is
unavailable to all users. You must use a serial connection to the command
line interface and change the access setting to local or radiusLocal to
regain access. For example, the command to change the access setting to
local would be:
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RADIUS
Path: Administration > Security > Remote Users > RADIUS
Use this option to do the following:
• List the RADIUS servers (a maximum of two) available to the Rack PDU and the
time-out period for each.
• Click Add Server , and configure the parameters for authentication by a new RADIUS
server.
• Click a listed RADIUS server to display and modify its parameters.
RADIUS Setting Definition
RADIUS Server The server name or IP address of the RADIUS server.
OTE:RADIUS server s use po r t 18 12 by def au lt to aut he nt ica te user s.
N
To use a different port, add a colon followed by the new port number to
the end of the RADIUS server name or IP address.
Secret The shar ed secret between the RADIUS ser ver and the Rack PDU.
Timeout The time in seconds that the Rack PDU waits for a response from the
RADIUS serv e r.
Test Settings Enter the Administrator user name and password to test the RADIUS
server path that you have configured.
Skip T est and Apply Do not test the RADIUS server path.
Switch Server
Priority
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Change which RADIUS server will authenticate users if two configured
servers are listed and RADIUS, then Local Authentication or
RADIUS Only is the enabl ed au the n ti c atio n m eth od.
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Configuring the RADIUS Server
Summary of th e con figuration procedure
You must configure your RADIUS server to work with the Rack PDU.
For examples of the RADIUS users file with Vendor Specific Attributes (VSAs)
and an example of an entry in the dictionary file on the RADIUS server, see
Appendix B: Security Handbook.
1. Add the IP address of the Rack PDU to the RADIUS server client list (file).
2. Users must be configured with Service-Type attributes unless Vendor Specific
Attributes (VSAs) are defined. If no Service-Type attributes are configured,
users will have read-only access (on the Web interface only).
See your RADIUS server documentation for information about the
RADIUS users file, and see Appendix B: Security Handbook for an
example.
3. VSAs can be used instead of the Service-Type attributes provided by the
RADIUS server. VSAs require a dictionary entry and a RADIUS users file. In
the dictionary file, define the names for the A TTRIBUTE and VALUE keywords,
but not for the numeric values. If you change numeric values, RADIUS
authentication and authorization will fail. VSAs take precedence over standard
RADIUS attributes.
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Configuring a RADIUS server on UNIX® with shadow passwords
If UNIX shadow password files are used (/etc/passwd) with the RADIUS dictionary files,
the following two methods can be used to authenticate users:
• If all UNIX users have administrative privileges, add the following to the RADIUS
“user” file. To allow only Device Users, change the DELL-Service-Type to Device.
DEFAULT Auth-Type = System
DELL-Service-Type = Admin
• Add user names and attributes to the RADIUS “user” file, and verify the password
against /etc/passwd. The following example is for users bconners and thawk:
bconners Auth-Type = System
DELL-Service-Type = Admin
thawk Auth-Type = System
DELL-Service-Type = Device
Supported RADIUS servers
Supported RADIUS servers: FreeRADIUS and Microsoft IAS 2003. Other commonly
available RADIUS applications may work but have not been fully tested.
Inactivity Timeout
Path: Ad ministration > Security > Auto Log Off
Use this option to configure the time (3 minutes by default) that the system waits before
logging off an inactive user. If you change this value, you must log off for the change to
take effect.
This timer continues to run if a user closes the browser window without first
logging off by clicking Log Off at the upper right. Because that user is still
considered to be logged on, no user can log on until the time specified as
Minutes of Inactivity expires. For example, with the default value for
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Minutes of Inactivity , if a user closes the browser window without logging off,
no user can log on for 3 minutes.
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Administration: Network Features
TCP/IP and Communication Settings
TCP/IP sett ings
Path: Ad ministration > Network > TCP/IP
The TCP/IP option on the left navigation menu, selected by default when you choose
Network on the top menu bar, displays the current IP address, subnet mask, default
gateway, and MAC address of the Rack PDU.
On the same page, TCP/IP Configuration provides the following options for how the
TCP/IP settings will be configured when the Rack PDU turns on, resets, or restarts:
Manual, BOOTP, DHCP, and DHCP & BOOTP.
For information on DHCP and DHCP options, see RFC2131 and RFC2132.
Setting Description
Manual The IP address, subnet mask, and defau lt gatew ay must be configured manually.
Click Next>>, and enter the new values.
1. The default values for t hes e three settings on the configurat ion pages gener ally do not need to be
changed:
•Vendor Class: DELL
•Client ID: The MAC add r es s of th e R ack PDU, whic h uniquely identi fie s it o n th e local area
network (LAN)
•User Class: The name of t he application f irm w are module
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Setting Des cripti on
BOOTP A BOOTP server provides the TCP/IP settings. At 32-second intervals, the Rack PDU
reques ts network assignment from any BOOTP server:
• If the Rack PDU receives a valid response, it starts the network services.
• If the Ra c k PD U f in ds a BO OT P se rv er, but a r equ es t t o th at s e rver f a ils or ti mes out ,
the Rack PDU stops requesting network settings until it is restarted.
• By default, if previously configured network settings exi st, and the Rack PDU
receives no valid response to five requests (the original and four retries), it uses the
previously configured settings so that it remains accessible.
Click Next>> to access the BOOTP Configuration page to change the number of
retries or the action to take if all retries fail
• Maximum r et rie s: Enter t he numbe r of r etrie s th at wil l occu r when no val id res ponse
is received, or zero (0) for an unlimit ed number of retries.
• If retries fail: Select Use prior settings (the default) or Stop BOOTP request.
DHCP The default setting. At 32-second intervals, the Rack PDU requests network
assignment from any DHCP server.
• If the Rack PDU receives a valid response, it does not require the vendor cookie
from the DH CP s erv e r in ord er to acc e p t the leas e an d start th e ne tw or k se rv i ces .
• If th e Ra ck PDU find s a DH CP s erve r, but the req ue st to th at s erv e r fai ls or tim e s
out, it stops requesting network settings until it is restarte d
• Require vendor specific cookie to accept DHCP Address: By selecting this
check box, you can require the DHCP server to provide a cookie which supplies
information to the Rack PDU.
1. The default values for th es e three settings on the configu rat ion pages gener ally do not need to be
changed:
•Vendor Class: DELL
•Client ID: The MAC add r es s of th e R ack PDU, whic h uniquely identifies it on the local area
network (LAN)
•User Class: The name of t he application fi rm w are module
1
:
1
.
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Setting Des cripti on
DHCP
&
BOOTP
1. The default values for th es e three settings on the configu rat ion pages gener ally do not need to be
changed:
•Vendor Class: DELL
•Client ID: The MAC add r es s of th e R ack PDU, whic h uniquely identifies it on the local area
network (LAN)
•User Class: The name of t he application fi rm w are module
The default setting. The Rack PDU tries to obtain its TCP/IP settings from a BOOTP
server first, and then, if it cannot discover a BOOTP server, from a DHCP server. If it
obtains its TCP/IP settings from either server, it switches this setting to BOOTP or
DHCP, depending on the type of se rver that supplied the TCP/IP settings to the Rack
PDU.
Click Next>> to configure the same set tings that are on the BOOTP Configuration
and DHCP Configuration pages
be retained after either type of server provides the TCP/IP values.
1
and to specify that the DHCP and BOOTP setting
DHCP response options
Each valid DHCP response contains options that provide the TCP/IP settings that the
Rack PDU needs to operate on a network, and other information that affects the
operation of the Rack PDU.
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Vendor Specific Information (option 43). The Rack PDU uses this option in a DHCP
response to determine whether the DHCP response is valid. This option contains up to
two specific options in a TAG/LEN/DA TA format: the V endor Cookie and the Boot Mode
Transition.
• Vendor Cookie. Tag 1, Len 4, Data “1APC”
Option 43 communicates to the Rack PDU that a DHCP server is configured to
service the Dell Rack PDUs. By default, the Rack PDU does not require this cookie.
To enable the requirement of a vendor cookie, see DHCP.
Following, in hexadecimal format, is an example of a Vendor Specific Information
option that contains the vendor cookie:
Option 43 = 0x01 0x04 0x31 0x41 0x50 0x43
• Boot Mode Transition. Tag 2, Len 1, Data 1/2
This option 43 setting enables or disables Remain in DHCP & BOOTP mode after
accepting TCP/IP settings, which, by default, is disabled.
– A data value of 1 enables Remain in DHCP & BOOTP mode after accepting
TCP/IP settings. Whenever the Rack PDU reboots, it will request its network
assignment first from a BOOTP server, and then, if necessary, from a DHCP
server.
– A data value of 2 disables the option Remain in DHCP & BOOTP mode after
accepting TCP/IP settings option. The TCP/IP Configuration setting option
switches to DHCP when the Rack PDU accepts the DHCP response. Whenever
the Rack PDU reboots, it will request its network assignment from a DHCP server
only.
Following, in hexadecimal format, is an example of a Vendor Specific Information
option that contains the vendor cookie and the disable setting for Boot Mode
Transition:
Option 43 = 0x01 0x04 0x31 0x41 0x50 0x43 0x02 0x01 0x01
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TCP/IP opti ons. The Rack PDU uses the following options within a valid DHCP
response to define its TCP/IP settings. All of these options except the first are
described in RFC2132.
• IP Address (from the yiaddr field of the DHCP response, described in RFC2131):
The IP address that the DHCP server is leasing to the Rack PDU.
• Subnet Mask (option 1): The Subnet Mask value that the Rack PDU needs to
operate on the network.
• Router, i.e., Default Gateway (option 3): The default gateway address that the Rack
PDU needs to operate on the network.
• IP Address Lease Time (option 51): The time duration for the lease of the IP
Address to the Rack PDU.
• Renewal Time, T1 (option 58): The time that the Rack PDU must wait after an IP
address lease is assigned before it can request a renewal of that lease.
• Rebinding Time, T2 (option 59): The time that the Rack PDU must wait after an IP
address lease is assigned before it can seek to rebind that lease.
Other options. The Rack PDU also uses these options within a valid DHCP response.
All of these options except the last are described in RFC2132.
• Network Time Protocol Servers (option 42): Up to two NTP servers (primary and
secondary) that the Rack PDU can use.
• Time Offset (option 2): The offset of the Rack PDU's subnet, in seconds, from
Coordinated Universal Time (UTC).
• Domain Name Server (option 6): Up to two Domain Name System (DNS) servers
(primary and secondary) that the Rack PDU can use.
• Host Name (option 12): The host name that the Rack PDU will use (32-character
maximum length).
• Domain Name (option 15): The domain name that the Rack PDU will
use (64-character maximum length).
• Boot File Name (from the file field of the DHCP response, described in RFC2131):
The fully qualified directory-path to a user configuration file (.ini file) to download. The
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siaddr field of the DHCP response specifies the IP address of the server from which
the Rack PDU will download the .ini file. After the download, the Rack PDU uses
the .ini file as a boot file to reconfigure its settings.
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Port Speed
Path: Ad ministration > Network > Port Speed
The Port Speed setting defines the communication speed of the TCP/IP port.
•For Auto-negotiation (the default), Ethernet devices negotiate to transmit at the
highest possible speed, but if the supported speeds of two devices are unmatched,
the slower speed is used.
• Alternatively, you can choose 10 Mbps or 100 Mbps, each with the option of
half-duplex (communication in only one direction at a time) or full-duplex
(communication in both directions on the same channel simultaneously).
DNS
Path: A dministration > Network > DNS > options
Use the options under DNS on the left navigation menu to configure and test the
Domain Name System (DNS):
• Select servers to specify the IP addresses of the primary and optional secondary
DNS server. For the Rack PDU to send e-mail, at least the IP
DNS server must be defined.
– The Rack PDU waits up to 15 seconds for a response from the primary DNS server
or the secondary DNS server (if a secondary DNS server is specified). If the Rack
PDU does not receive a response within that time, e-mail cannot be sent.
Therefore, use DNS servers on the same segment as the Rack PDU or on a
nearby segment (but not across a wide-area network [WAN]).
– After you define the IP addresses of the DNS servers, verify that DNS is working
correctly by entering the DNS name of a computer on your network to look up the
IP address for that computer.
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• Select naming to define the host name and domain name of the Rack PDU:
– Host Name: After you configure a host name here and a domain name in the
Domain Name field, users can enter a host name in any field in the Rack PDU
interface (except e-mail addresses) that accepts a domain name.
– Domain Name: You need to configure the domain name here only. In all other
fields in the Rack PDU interface (except e-mail addresses) that accept domain
names, the Rack PDU adds this domain name when only a host name is entered.
• To override all instances of the expansion of a specified host name by the
addition of the domain name, set the domain name field to its default,
somedomain.com, or to 0.0.0.0.
• To override the expansion of a specific host name entry (for example, when
defining a trap receiver), include a trailing period. The Rack PDU recognizes a
host name with a trailing period (such as mySnmpServer.) as if it were a fully-
qualified domain name and does not append the domain name.
• Select test to send a DNS query that tests the setup of your DNS servers:
–As Query Type, select the method to use for the DNS query:
• by Host: the URL name of the server
• by FQDN: the fully-qualified domain name
• by IP: the IP address of the server
• by MX: the Mail Exchange used by the server
–As Query Question, identify the value to be used for the selected query type:
Query Type Selecte d Query Questio n to Use
by Host The URL
by FQDN The fully qualified domain name, my_server.my_domain.
by IP The IP address
by MX The Mail Exchange address
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– View the result of the test DNS request in the Last Query Response field.
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Web
Path: Ad ministration > Network > Web > options
Option Descr iptio n
access To activate changes to any of these selections, l og off from the Rack PDU:
• Disable: Disables access to the Web interface. (To re -enable access, log in to the
command line interface, then type the command
HTTPS access, type
• Enable HTTP (the default): Enables Hypertext Transfer Protocol (HTTP), which
provides Web access by user name and password, but does not encrypt user
names, pass w o rds , an d da ta du r ing tra nsm i s sio n .
• Enable HTTPS: Enables Hypertext Transfer Protocol (HTTPS) over Secure
Sockets Layer (SSL). SSL encrypts user names, passwords, and data during
transmi s si on , an d authe nt i ca te s the Rack PDU by di gital certific at e. When HTT PS
is enabled, your browser displ ays a small lock icon.
See “Creating and Installing Digital Certificates” in Appendix B: Security Handbook
to choose among the several methods for using digital certificates.
HTTP Port: The TCP/IP port (80 by default) used to communicate by HTTP with the
Rack PDU.
https -S enable.)
http -S enable. For
HTTPS Port: The TCP/IP port (443 by default) used to communicate by HTTPS
with the Rack PDU.
For either of these ports, you can change the port setting to any unused port from
5000 t o 32 76 8 fo r ad di ti ona l se cur it y. Users m us t th en us e a col on ( : ) i n t he a dd r ess
field of the browser to specify the port number. For example, for a port number of
5000 and an IP address of 152.214.12.114:
http://152.214.12.114:5000
https://152.214.12.114:5000
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Option De scr iption
ssl
certificate
Add, replace, or remove a security certificate.
Status:
• Not installed: A certificate is not installed, or was installed by FTP or SCP to an
incorrect location. Using Add or Replace Certificate File installs the certificate to
the correct location, /ssl on the Rack PDU.
• Generating: The Rack PDU is gen er a ti ng a cer ti fi cat e be cau s e no vali d cert i fi cat e
was found.
• Loading: A certificate is being activated on the Rack PDU.
• Valid certificate: A valid certificate was installed or was generated by the Rack
PDU. Click on this link to view t he contents of the certificate.
If you install an invalid certificate, or if no certificate is loaded when you
enable SSL, the Management Card generates a default certificate, a process
which delays access to the interface for up to one minute. You can use the
default certificate for basic encryption-based security, but a security alert message
displays whenever you log on.
Add or Replace Certificate File: Enter or browse to the certificate file created with
the Security Wizard.
See “Creating and Installing Di gital Certificates” in Appendix B: Security Handbook
to choose a method for using digital c ertificates created by the Security Wizard or
generated by the Rack PDU.
Remove: Delete the current certific ate.
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Console
Path: Administration > Network > Console >
Option Desc riptio n
access Choose one of the following for access by Telnet or Secure SHell (SSH):
• Disable: Disabl es all acce ss to the command line interface.
• E n able Te ln et (the default): Telnet trans m its user names, passwords, and data
without encryption.
• Enable SSH: SSH tr ansmit s us er names , p asswor ds, a nd dat a in e ncryp ted f orm,
providing protection from attempts to intercept, forge, or alter data during
transmission.
Configure the ports to be used by these protocols:
• Telnet Port: The Telnet port used to communicate with the Rack PDU (23 by
default). You can change the port setting to any unused port from 5000 to 32768
for addi tional security. Users must then use a colon (:) or a space, as required by
your Telnet client program, to specify th e non-default port. For example, for port
5000 and an IP address of 152.214.12.114, your Telnet client requires one of the
these co mmands:
telnet 152.214.12.114:5000
telnet 152.214.12.114 5000
options
• SSH Port: The SSH port used to communicate with the Rack PDU (22 by
default). You can change the port setting to any unused port from 5000 to 32768
for additional security. See the documentation for your SSH client for the
command line format required to specify a non-default port.
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Option Desc ription
ssh host
key
Status indicates the status of the host key (private key):
• SSH Disabled: No host key in use: When disabled, SSH cannot use a host key.
• Generating: The Rack PDU is cr eatin g a host key because no valid h ost key was
found.
• Loading: A host key is being activated on the Rack PDU.
• Valid: One of the foll ow ing va lid hos t k eys is in the /ssh directory (the required
location on the Rack PDU):
•A 1024-bit or 2048-bit host key created by the Security Wizard
•A 2048-bit RSA host key generated by the Rack PDU
Add or Replace: Browse to and upload a host key file created by the Security
Wizard.
To us e th e Se cu r ity W iz ard , se e the Appendix B: Security Handbook.
OTE:To reduce the time required to enable SSH, create and upload a host key in
N
advance. If you enable SSH with no host key loa ded, the Rack PDU takes up
to one minute to create a host key, and the SSH server is not accessible
during that time.
Remove: Remove the current host key.
To use SSH, you must have an SSH client installed. Most Linux and other
UNIX
systems do not. Clients are available from various vendors.
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SNMP
All user names, passwords, and community names for SNMP are transferred over the
network as plain text. If your network requires the high security of encryption, disable
SNMP access or set the access for each community to Read. (A community with Read
access can receive status information and use SNMP traps.)
For detailed information on enhancing and managing the security of your
system, see Appendix B: Security Handbook.
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SNMPv1
Path: A d ministration > Network > SNMPv1 > options
Option Description
access Enable SNMPv1 Access: Enables SNMP version 1 as a method of communication
with this de vic e .
access
control
You can configure up to four access control entries to specify which Network
Management Systems (NMSs) have access to this device. The opening page for
access control , by default, assigns one entry to each of the four available SNMPv1
communities, but you can edit these settings to apply more than one entry to any
community to grant access by several specific IP addresses, host names, or IP
address masks. To edit the access control settings for a community, click its
community name.
• If you leave the default access control entry unchanged for a community, that
community has access to this device from any location on the network.
• If you configure multiple access control entries for one community name, the limit of
four entr ies r equi res t hat on e or mor e of th e othe r communi tie s must have no ac cess
contro l e nt ry. If no a cc ess control entr y is lis t ed f or a co mmun it y, that comm unity has
no access to this device.
Community Name: The name that an NMS must use to access the community. The
maxim u m length is 15 ASCII c ha rac t ers , an d the de fa u lt com m u ni ty na m es for th e
four communities are public, private, public2, and private2.
NMS IP/Host Name: The IP address, IP address mask, or host name that controls
access by NMSs . A hos t na me or a spe ci f ic I P a ddr e ss ( su ch a s 14 9. 22 5. 12. 1) al l ows
access only by the NMS at that location. IP addresses that contain 255 restrict access
as follows:
• 149.225.12.255: Access only by an NMS on the 149.225.12 segment.
• 149.225.255.255: Access only by an NMS on the 149.225 segment.
• 149.255.255.255: Access only by an NMS on the 149 segment.
• 0.0.0.0 (the default setting) which can also be expressed as 255.255.255.255:
Access by any NMS on any segment.
Access Type: The actions an NMS can perform through the community.
• Read: GETS only, at any time
• Write: GETS at any time, and SETS when no user is logged onto the Web interface
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or command line interface.
• Write+: GETS and SETS at any time.
• Disable: No GETS or SETS at any time.
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SNMPv3
Path: A d ministration > Network > SNMPv3 > options
For SNMP GETs, SETs, and trap receivers, SNMPv3 uses a system of user profiles to
identify users. An SNMPv3 user must have a user profile assigned in the MIB software
program to perform GETs and SETs, browse the MIB, and receive traps.
To use SNMPv3, you must have a MIB program that supports SNMPv3.
The Rack PDU supports SHA or MD5 authentication and AES or DES
encryption.
Option Description
access SNMPv3 Access: Enables SNMPv3 as a method of communication with this device.
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Option Description
user
profiles
By default, lists the settings of four user profiles, configured with the user names dell
snmp prof ile1 through dell snmp profile4, and no authentication and no privacy (no
encryption). To edit the following settings for a user profile, click a user name in the list.
User Name: The identifier of the user pr ofile. SNMP version 3 maps GETs, SETs, and
traps to a user profile by matching the user name of the profile to the user name i n the
data packet b eing transmitted. A user name can have up to 32 ASCII characters.
Authentication Passphrase: A phrase of 15 to 32 ASCII characters (dell auth
passphrase, by default) that verifies that the NMS communicating with this device
through SNMPv3 is the NMS it claims to be, that the message has not been changed
during transmission, and that the message was communicated in a timely manner,
indicating that it was not delayed and that it was not copied and sent again later at an
inappropriate time.
Privacy Passphrase: A phrase of 15 to 32 ASCII characters (dell crypt
passphrase, by def ault) tha t ensur es th e pri vacy of the da ta (b y mean s of encr ypti on)
that an NMS is sendin g to this dev ice or receiving from this device through SNMPv3.
Authentication Protocol: The Dell implementation of SNMPv3 supports SHA and
MD5 authentication. Authentication will not occur unless an authentication protocol is
selected.
Privacy Protocol: The Dell implemen tatio n of SNMPv3 suppor ts AES and DES as the
protocols for encrypting and decrypting data. Privacy of transmitted data requires that
a privacy protocol is selected and that a privacy passphrase is provided in the request
from the NMS. When a privacy protocol is enabled but the NMS does not provide a
privacy passphrase, the SNMP request is not encrypted.
Note: You cannot select the privacy protoc ol if no authentication protocol is selected.
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Option Description
access
control
You can configure up to four access control entries to specify which NMSs have
access to this device. The opening page for access control, by default, assigns one
entry to each of the four user profiles, but you can edit these settings to apply more
than one entry to any user profile to grant ac cess by several specific IP addresses,
host names, or IP address masks.
• If you leave the default access control entry unchanged for a user profile, all NMSs
that use that profile have access to this device.
• If you configure multiple access entries for one user profile, the limit of four entries
requires that one or more of the other user profiles must have no access control
entry. If no access control entry is listed for a user profile, no NMS that uses that
profile has any access to this device.
To edit the access control settings for a user profile, click its u ser name.
Access: Mark the Enable checkbox to activate the access control specified by the
parame te rs in th is acc e s s con tro l en try.
User Na me: From the drop-down list, select the user profile to which this access
control entry will apply. The choices available are the four user names that you
configure through the user pro files option on the left navigation menu.
NMS IP/Host Name: The IP address, IP address mask, or host name that controls
access by the NMS. A host name or a specific IP address (such as 149.225.12.1)
allows access only by the NMS at that location. An IP a ddress mask that contains 255
restricts access as follows:
• 149.225.12.255: Access only by an NMS on the 149.225.12 segment.
• 149.225.255.255: Access only by an NMS on the 149.225 segment.
• 149.255.255.255: Access only by an NMS on the 149 segment.
• 0.0.0.0 (the default setting) which can also be expressed as 255.255.255.255:
Access by any NMS on any segment.
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FTP Server
Path: Ad ministration > Networ k > FTP Serv er
The FTP Server settings enable (by default) or disable access to the FTP server and
specify the TCP/IP port (21 by default) that the FTP server uses to communicate with
the Rack PDU. The FTP server uses both the specified port and the port one number
lower than the specified port.
You can change the Port setting to the number of any unused port from 5001 to 32768
for added security. Users must then use a colon (:) to specify the non-default port
number. For example, for port 5001 and IP address 152.214.12.114, the command
would be ftp 152.214.12.114:5001.
FTP transfers files without encryption. For higher security, disable the FTP
server, and transfer files with Secure CoPy (SCP). Selecting and configuring
Secure SHell (SSH) enables SCP automatically.
For detailed information on enhancing and managing the security of your
system, see Appendix B: Security Handbook.
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