Red Hat DIRECTORY SERVER 8.1 - USING RED HAT CONSOLE 4-28-2008, Directory Server 8.1 Using Instruction

Red Hat Directory

Server 8.1

Using Red Hat Console

For Red Hat Directory Server

Ella Deon Lackey

Publication date: Released April 28, 2009

Using Red Hat Console

Red Hat Directory Server 8.1 Using Red Hat Console
For Red Hat Directory Server
Edition 8.1.1

Author Ella Deon Lackey
Copyright © 2009 Red Hat, Inc.

Copyright © 2009 Red Hat, Inc.. This material may only be distributed subject to the terms and
conditions set forth in the Open Publication License, V1.0 or later (the latest version of the OPL is
presently available at http://www.opencontent.org/openpub/).

Red Hat and the Red Hat "Shadow Man" logo are registered trademarks of Red Hat, Inc. in the United
States and other countries.

All other trademarks referenced herein are the property of their respective owners.

1801 Varsity Drive
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Phone: [phone]
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PO Box 13588 Research Triangle Park, NC 27709 USA

This guide provides background information that system architects and administrators need to
successfully install and manage Red Hat Directory Servers in their enterprise. Read about Red Hat
server basics here before you begin installing and configuring servers in your enterprise.

iii

Preface v

1. Purpose of This Guide .................................................................................................... v

2. Examples and Formatting ................................................................................................ v

2.1. Command and File Examples ............................................................................... v

2.2. Tool Locations ...................................................................................................... v

2.3. LDAP Locations ................................................................................................... v

2.4. Text Formatting and Styles ................................................................................... vi

3. Additional Reading ......................................................................................................... vii

4. Giving Feedback ........................................................................................................... viii

5. Documentation History .................................................................................................. viii

1. Overview of Red Hat Console 1

1.1. How the Console, Directory Server, and Administration Server Work Together .................. 1

1.2. Red Hat Console Menus .............................................................................................. 4

1.3. Red Hat Console Tabs ................................................................................................. 5

1.3.1. The Servers and Applications Tab ...................................................................... 5

1.3.2. The Users and Groups Tab ................................................................................ 6

1.4. Server-Specific Consoles .............................................................................................. 7

1.4.1. The Directory Server Console ............................................................................ 7

1.4.2. The Administration Server Console ..................................................................... 8

2. Basic Tasks in the Red Hat Console 11

2.1. Installing the Console ................................................................................................. 11

2.2. Launching the Console ............................................................................................... 11

2.3. Opening a Directory or Administration Server Window .................................................. 12

2.4. Changing the Console Appearance ............................................................................. 13

2.4.1. Changing Profile Locations ............................................................................... 14

2.4.2. Restoring Default Font Settings ........................................................................ 15

2.4.3. Changing Console Fonts .................................................................................. 16

2.4.4. Reordering Table Columns ............................................................................... 18

2.4.5. Customizing the Main Window ......................................................................... 19

2.4.6. Working with Custom Views ............................................................................. 20

3. Managing Server Instances 25

3.1. Editing Domain, Host, Server Group, and Instance Information ...................................... 25

3.2. Creating and Removing Admin Domains ...................................................................... 26

3.2.1. Creating and Editing an Admin Domain ............................................................. 26

3.2.2. Removing an Admin Domain ............................................................................ 27

3.3. Creating a New Directory Server Instance ................................................................... 28

3.4. Deleting a Directory Server Instance ........................................................................... 29

4. Managing Directory Server Users and Groups 31

4.1. Searching for Users and Groups ................................................................................. 31

4.2. Creating Directory Entries ........................................................................................... 33

4.2.1. Directory and Administrative Users ................................................................... 33

4.2.2. Groups ............................................................................................................ 36

4.2.3. Organizational Units ......................................................................................... 39

4.3. Modifying Directory Entries ......................................................................................... 41

4.3.1. Editing Entries ................................................................................................. 41

4.3.2. Allowing Sync Attributes for Entries .................................................................. 41

4.3.3. Changing Administrator Entries ........................................................................ 42

4.3.4. Removing an Entry from the Directory .............................................................. 47

5. Setting Access Controls 49

Using Red Hat Console

iv

5.1. Granting Admin Privileges to Users for Directory Server and Administration Server ......... 49

5.2. Setting Access Permissions on Console Elements ....................................................... 51

6. Using SSL/TLS with Red Hat Console 57

6.1. Overview of SSL/TLS ................................................................................................. 57

6.2. Installing Certificates ................................................................................................... 59

6.2.1. Generating a Certificate Request ...................................................................... 59

6.2.2. Installing the Certificate .................................................................................... 61

6.2.3. Trusting a Certificate Authority or Adding a Certificate Chain ............................... 64

6.3. Enabling TLS/SSL ...................................................................................................... 67

6.4. Creating Password Files ............................................................................................. 72

6.4.1. Creating a Password File for the Directory Server .............................................. 72

6.4.2. Creating a Password File for the Administration Server ...................................... 73

Index 75

v

Preface

Welcome to the Managing Servers with Red Hat Console Guide.

Red Hat Directory Server and Administration Server have a special Java-based console which
simplifies administering the directories. This guide covers the basic structure of the Red Hat Console
for both the Directory Server and the Administration Server and provides an overview of how to use
the main Red Hat Console to manage users and access within the Console.

1. Purpose of This Guide

There are three Java consoles bundled together to manage the servers in Red Hat Directory Server:

• The Red Hat Console, which is the first console to open. This has a unified view of all Administration
Server and Directory Server instances being managed and can perform basic user and group tasks,
like adding, searching, editing, and deleting entries.

• The Administration Server, which manages the Administration Server local instance, including
viewing logs and changing the Administration Server configuration.

• The Directory Server Console, a separate window for each Directory Server instance with manages
the server through changing configuration and viewing logs and performance monitors and
manages the directory and directory policies.

This guide provides a basic overview of how to use and navigate through Red Hat Console so that
managing servers through the consoles is easy and effective.

2. Examples and Formatting

Each of the examples used in this guide, such as file locations and commands, have certain defined
conventions.

2.1. Command and File Examples

All of the examples for Red Hat Directory Server commands, file locations, and other usage are given
for Red Hat Enterprise Linux 5 (32-bit) systems. Be certain to use the appropriate commands and files
for your platform.

To start the Red Hat Directory Server:

service dirsv start

Example 1. Example Command

2.2. Tool Locations

The tools for Red Hat Directory Server are located in the /usr/bin and the /usr/sbin directories.
These tools can be run from any location without specifying the tool location.

2.3. LDAP Locations

There is another important consideration with the Red Hat Directory Server tools. The LDAP tools
referenced in this guide are Mozilla LDAP, installed with Red Hat Directory Server in the /usr/lib/

Preface

vi

mozldap directory on Red Hat Enterprise Linux 5 (32-bit) (or /usr/lib64/mozldap for 64-bit
systems).

However, Red Hat Enterprise Linux systems also include LDAP tools from OpenLDAP in the /usr/
bin directory. It is possible to use the OpenLDAP commands as shown in the examples, but you must
use the -x argument to disable SASL, which OpenLDAP tools use by default.

2.4. Text Formatting and Styles

Certain words are represented in different fonts, styles, and weights. Different character formatting is
used to indicate the function or purpose of the phrase being highlighted.

Formatting Style Purpose

Monospace font Monospace is used for commands, package

names, files and directory paths, and any text
displayed in a prompt.

Monospace
with a
background

This type of formatting is used for anything
entered or returned in a command prompt.

Italicized text Any text which is italicized is a variable, such

as instance_name or hostname. Occasionally,
this is also used to emphasize a new term or
other phrase.

Bolded text Most phrases which are in bold are application

names, such as Cygwin, or are fields or
options in a user interface, such as a User
Name Here: field or Save button.

Other formatting styles draw attention to important text.

NOTE

A note provides additional information that can help illustrate the behavior of the system or
provide more detail for a specific issue.

IMPORTANT

Important information is necessary, but possibly unexpected, such as a configuration
change that will not persist after a reboot.

WARNING

A warning indicates potential data loss, as may happen when tuning hardware for
maximum performance.

Additional Reading

vii

3. Additional Reading

The Directory Server Administrator's Guide describes how to set up, configure, and administer Red
Hat Directory Server and its contents. this manual does not describe many of the basic directory and
architectural concepts that you need to deploy, install, and administer a directory service successfully.
Those concepts are contained in the Red Hat Directory Server Deployment Guide. You should read
that book before continuing with this manual.

When you are familiar with Directory Server concepts and have done some preliminary planning for
your directory service, install the Directory Server. The instructions for installing the various Directory
Server components are contained in the Red Hat Directory Server Installation Guide. Many of the
scripts and commands used to install and administer the Directory Server are explained in detail in the
Red Hat Directory Server Configuration, Command, and File Reference.

Also, Managing Servers with Red Hat Console contains general background information on how to
use the Red Hat Console. You should read and understand the concepts in that book before you
attempt to administer Directory Server.

The document set for Directory Server contains the following guides:

• Red Hat Directory Server Release Notes contain important information on new features, fixed bugs,
known issues and workarounds, and other important deployment information for this specific version
of Directory Server.

• Red Hat Directory Server Deployment Guide provides an overview for planning a deployment of the
Directory Server.

• Red Hat Directory Server Administrator's Guide contains procedures for the day-to-day maintenance
of the directory service. Includes information on configuring server-side plug-ins.

• Red Hat Directory Server Configuration, Command, and File Reference provides reference
information on the command-line scripts, configuration attributes, and log files shipped with
Directory Server.

• Red Hat Directory Server Installation Guide contains procedures for installing your Directory Server
as well as procedures for migrating from a previous installation of Directory Server.

• Red Hat Directory Server Schema Reference provides reference information about the Directory
Server schema.

• Red Hat Directory Server Plug-in Programmer's Guide describes how to write server plug-ins in
order to customize and extend the capabilities of Directory Server.

• Using Red Hat Console gives an overview of the primary user interface and how it interacts with
the Directory Server and Administration Server, as well as how to perform basic management tasks
through the main Console window.

• Using the Admin Server describes the different tasks and tools associated with the Administration
Server and how to use the Administration Server with the Configuration and User Directory Server
instances.

For the latest information about Directory Server, including current release notes, complete product
documentation, technical notes, and deployment information, see the Red Hat Directory Server
documentation site at http://www.redhat.com/docs/manuals/dir-server/.

Preface

viii

4. Giving Feedback

If there is any error in this Managing Servers with Red Hat Console or there is any way to improve
the documentation, please let us know. Bugs can be filed against the documentation for Red Hat
Directory Server through Bugzilla, http://bugzilla.redhat.com/bugzilla. Make the bug report as specific
as possible, so we can be more effective in correcting any issues:

• Select the Red Hat Directory Server product.

• Set the component to Doc - managing-servers.

• Set the version number to 8.1.

• For errors, give the page number (for the PDF) or URL (for the HTML), and give a succinct
description of the problem, such as incorrect procedure or typo.

For enhancements, put in what information needs to be added and why.

• Give a clear title for the bug. For example, "Incorrect command example for setup
script options" is better than "Bad example".

We appreciate receiving any feedback — requests for new sections, corrections, improvements,
enhancements, even new ways of delivering the documentation or new styles of docs. You are
welcome to contact Red Hat Content Services directly at mailto:[e-mail].

5. Documentation History

Revision 8.1.1 September 9, 2009 Ella Deon Lackey

Removing any references to the Directory Server Gateway or Org Chart.

Revision 8.1.0 April 28, 2009 Ella Deon Lackey [e-mail]

Initial draft for version 8.1.

Chapter 1.

1

Overview of Red Hat Console

Red Hat Console is the user interface to manage Red Hat Directory Server and Administration Server
configuration and directory information. There is a single main Console window which administers the
servers (collected and identified in administration domains). The main Console allows you to open
server-specific Consoles to manage the settings and information in individual instances.

This chapter provides an overview of how the Console interacts with the Directory Server and
Administration Server and walks through the Console windows and options.

1.1. How the Console, Directory Server, and Administration
Server Work Together

The Red Hat Console is an independent Java application which works in conjunction with instances of
Red Hat Directory Server and Administration Server. Most server management functions are carried
out in server-specific console windows for the Directory Server and Administration Server. Red Hat
Console is part of a system that manages Red Hat Directory Server instances and the Administration
Server and, therefore, information in the directory. Although Red Hat Directory Server, Red Hat
Console, and Red Hat Administration Server work tightly with one another, each plays a specific role in
managing servers, applications, and users.

Red Hat Console is the front-end management application for Red Hat Directory Server. It finds
all servers and applications registered in the configuration directory, displays them in a graphical
interface, and can manage and configure them. The Main Console can also search for, create, and
edit user and group entries in the user directory.

Figure 1.1. The Red Hat Console Interface

Chapter 1. Overview of Red Hat Console

2

When a user logs into Red Hat Console, the Console connects to the Administration Server over
Hypertext Transfer Protocol (HTTP). The Administration Server receives requests to administer the
different Directory Server instances and performs the changes to the configuration, such as changing
a port number. When a request is sent to the Red Hat Console to add or edit user entries, the Console
sends a Lightweight Directory Access Protocol (LDAP) message directly to Directory Server to update
the user directory.

Figure 1.2. Simple System Using Red Hat Console

Red Hat Directory Server stores server and application configuration settings as well as user
information. Typically, application and server configuration information is stored in one subtree
of Red Hat Directory Server while user and group entries are stored in another subtree. With a
large enterprise, however, configuration and user information can be stored in separate instances
of Directory Server (which can be on the same host machine or on two different host machines).

Figure 1.2, “Simple System Using Red Hat Console” illustrates a relatively simple Red Hat Directory

Server system. As an enterprise grows and needs change, additional hosts and Directory and Admin

How the Console, Directory Server, and Administration Server Work Together

3

Servers can be added to the administration domain in the Console, so that a single Console can
manage multiple Directory and Admin Servers.

Figure 1.3. A More Complex System

NOTE

When the terms configuration directory and user directory are used in this guide, they
refer to where the configuration information and the user information is stored, regardless

Chapter 1. Overview of Red Hat Console

4

of whether that is in the subtrees of a single instance of Directory Server or in two
separate instances of Directory Server.

1.2. Red Hat Console Menus

There are five menu items in the top menu the Console. The options for each of these menus
varies depending on the Console window open (the main Console, Directory Server Console, or
Administration Server Console) and the types of objects available in that server area.

Figure 1.4. Main Console Menus

Menu Description

Console Manages the Console session, such as closing

the window or exiting the session entirely.

• For the main window, this menu also can be
used to add and remove admin domain.

• For the Directory Server Console, this allows
people to log in as a different user.

• For the Administration Server Console, it
manages security issues, such as certificates
and tokens.

Edit Sets display preferences, for all three Consoles.

For the Directory Server Console, this also
provides ways to copy, paste, and delete
directory entries or text.

View Sets whether to display certain parts of the

Console window, such as the top banner, menus,
and side navigation panes. This also refreshes
the current display. For the Directory Server
Console, this menu also sets what parts of the
directory or which databases to view.

Object Provides available operations for the active

object; this is the same as the right-click menu
for the active area or entry.

• For the main window, this menu simply opens
or deletes a server instance.

Red Hat Console Tabs

5

Menu Description

• For the Directory Server Console, this provides
all of the configuration options for the directory
entries, such as advanced property editors or
creating new entries.

• For the Administration Server Console, this
opens a configuration editor, starts, and stops
the server.

Help Opens context-specific help for the current

Console area.

Table 1.1. Console Menus

1.3. Red Hat Console Tabs

There are two tabs in the main Console window:

• Servers and Applications, for managing the Directory Server and Administration Server instances

• Users and Groups, for searching for and creating user and group entries within the Directory
Server

1.3.1. The Servers and Applications Tab

The Servers and Applications tab, by default, has a navigation tree on the left for viewing hosts
and Directory and Administration Servers and a center information panel. To access the Directory
Server instance, directory information, or Administration Server, open the server resource listed in the
navigation tree. The information for the server instance, such as the build number and port number,

The navigation tree displays the Red Hat Directory Server topology, a hierarchical representation of all
the resources (such as servers and hosts), that are registered in a configuration directory.

Chapter 1. Overview of Red Hat Console

6

Figure 1.5. The Servers and Applications Tab

The top of the topology is the administration domain. An administration domain is a collection of host
systems and servers that share the same user directory. The server which hosts Directory Server or
Administration Server instances belongs to the admin domain; that is the host.

A server group consists of all Directory Servers that are managed by a common Administration Server.
A number of server groups can exist within an administration domain.

1.3.2. The Users and Groups Tab

The Users and Groups tab can search for user and group entries in any Directory Server
administered by the Console. Any of the returned entries can be edited or deleted through this tab,
assuming that the users has the proper access permissions. New entries can also be created through
the Users and Groups tab.

Server-Specific Consoles

7

Figure 1.6. The Users and Groups Tab

Switch the directory being searched or where the entries are added through the options in the Users
menu, as described in Section 4.1, “Searching for Users and Groups”.

1.4. Server-Specific Consoles

The main Console can open into two server-specific windows to manage the Administration Server
and Directory Server. These windows are opened by clicking the server name in the navigation area,
and then clicking the Open button in the resources area.

1.4.1. The Directory Server Console

The Directory Server Console manages the specific Directory Server instance configuration, including
the port number, SSL settings, and logging. The Directory Server Console also manages the directory
information (entries) and directory operations like importing and exporting databases, creating suffixes,
and extending the schema.

Chapter 1. Overview of Red Hat Console

8

Figure 1.7. The Directory Server Console

There are four tabs in the Directory Server Console:

• Tasks, which has shortcuts to common server operations, including starting and stopping the
Directory Server instance, importing and exporting databases, and managing SSL certificates

• Configuration, which defines all of the server configuration settings, including SASL and SSL
authentication, port numbers, schema, replication and synchronization, databases and suffixes,
logging, and plug-ins

• Directory, which access and manages the directory information, including user entries and all group
entries, including roles, classes of service, views, and groups

• Status, which monitors the server performance and displays the different monitoring and
performance counters for the Directory Server and databases

Similar to the main Console, the Directory Server Console tabs have a navigation area on the left and
a center panel that displays information about the active setting, entry, or database.

The procedures for using the Directory Server Console to manage the Directory Server configuration
and directory entries is covered in the Directory Server Administrator's Guide.

1.4.2. The Administration Server Console

The Administration Server itself administers the configuration of other servers, especially the
configuration and user directories for the server group. The Administration Server Console manages
the Administration Server settings and the settings for these two Directory Server directories;
whenever the settings are changed in the Directory Server configuration, the modifications must be
carried into the Administration Server configuration for the server to properly manage those servers.

The Administration Server Console

9

Figure 1.8. The Administration Server Console

The Administration Server Console is simpler than the Directory Server Console, with only two tabs:

• Tasks, which has shortcuts to common server operations, including starting and stopping the
Administration Server instance, setting up logging, and managing SSL certificates

• Configuration, which defines all of the Administration Server configuration settings, including SSL
authentication, port numbers, and logging, as well as the Configuration Directory Server and User
Directory Server settings which the Administration Server uses to connect to the directory services

The procedures for using the Administration Server Console to manage the Administration Server
configuration and associated directory services is covered in the Using the Admin Server guide.

10

Chapter 2.

11

Basic Tasks in the Red Hat Console

While most server management functions are carried out in server-specific console windows for the
Red Hat Directory Server and Administration Server, the main Red Hat Console itself has some basic
management functions, such as creating server instances, searching the directory, setting some
access controls, and allowing some entry modifications.

This chapter covers basic tasks in the Red Hat Console, including installing the Console, creating and
editing server instances, and configuring the Console appearance.

2.1. Installing the Console

The Red Hat Console package, redhat-ds-console.noarch, can be installed on Red Hat
Enterprise Linux systems using tools like yum. For example:

yum install redhat-idm-console

The Red Hat Console package and also be downloaded through Red Hat Network and installed using
package management tools such as rpm and pkgadd. For example:

rpm -ivh redhat-idm-console-1.0.0-22.el4idm.i386.rpm

2.2. Launching the Console

1. Run the redhat-idm-console command. For example:

redhat-idm-console -a http://server.example.com:9830

The different options for the redhat-idm-console command are listed in Table 2.1, “Arguments

for redhat-idm-console”.

2. Enter the user name and password.

Also, enter or select the URL for the instance of Administration Server, if one was not passed
with the command. The URL can be either the hostname or the IP address of the Administration

Chapter 2. Basic Tasks in the Red Hat Console

12

Server host. The Administration Server port number must be given, as well. The five most recent
Administration Server URLs accessed are available as a drop-down menu option.

Argument Description Example

-a adminURL Specifies a base URL for the
instance of Administration
Server to log into.

-a http://
eastcoast.example.com:987

-f fileName Writes errors and system
messages to fileName.

-f system.out

-h Prints out the help message for
redhat-idm-console.

-s Specifies the directory instance
to access, either by specifying
the DN of the server instance
entry (SIE) or the instance
name, such as slapd-
example.

-s slapd-example

-u Gives the user DN to use to log
into the Console.

-u "cn=Directory Manager"

-w Gives the password to use to
log into the Console.

-w secret

-w - Reads the password from the
standard output.

-x options Specifies extra options.
There are three values for
extraOptions:
nowinpos, which puts the
Console window in the upper
left corner of the screen
nologo, which keeps the splash
screen from being displayed
and only opens the login dialog
javalaf, which uses the Java
look and feel for the Console
interface rather than the
platform-specific styles

To use multiple options,
separate them with a comma.

-x nologo,nowinpos

-y file Reads the password from the
specified input file.

-y password.txt

Table 2.1. Arguments for redhat-idm-console

2.3. Opening a Directory or Administration Server Window

The Red Hat Console is the avenue to access instance-specific management windows for the
Directory Server and Administration Server. To open a console window for a specific server instance:

Changing the Console Appearance

13

1. Open the Red Hat Console.

redhat-idm-console

2. Click the Servers and Applications tab, which lists all of the Directory Server and Administration
Server instances within the configured Directory Server domain.

3. In the navigation tree, click a server to select it.

4. In the the right-hand panel, click Open.

Alternatively, double-click the server icon in the navigation tree.

2.4. Changing the Console Appearance

The fonts used for different elements in the Console can be edited. The font settings and the location
where the font profiles are stored can be customized. The default font settings can be restored easily.

This section also describes how to control other aspects of the appearance of the Console. For
example, table columns can be easily rearranged. It is also possible to control which server instances
are displayed (called a navigation view) which makes it easy to sort and find server instances.

Access control instructions can be applied to user interface elements, which is discussed in Chapter 5,

Setting Access Controls.

• Section 2.4.1, “Changing Profile Locations”

Chapter 2. Basic Tasks in the Red Hat Console

14

• Section 2.4.2, “Restoring Default Font Settings”

• Section 2.4.3, “Changing Console Fonts”

• Section 2.4.4, “Reordering Table Columns”

• Section 2.4.5, “Customizing the Main Window”

2.4.1. Changing Profile Locations

The Console formatting is stored in profiles. An entry's profiles can be stored locally, which means that
they are only available at a specific workstation, or can be stored in the configuration directory, so they
are accessible anywhere.

To set the profile location:

1. Click Edit in the top menu, and choose Preferences.

2. Click the Settings tab.

3. Select the radio button for the location to save the settings.

Restoring Default Font Settings

15

• In your configuration directory means that the settings are stored in the Directory Server

configuration, making them available no matter where you log into the Console.

• On your computer's hard disk stores the setting profiles locally. This is mainly useful if you want

specific, different settings used by default on different Consoles, such as a workstation and a
laptop.

4. Click OK.

2.4.2. Restoring Default Font Settings

1. Click Edit in the top menu, and choose Preferences.

2. Click the Settings tab.

3. Click the Restore Defaults button to revert to the default display settings.

Chapter 2. Basic Tasks in the Red Hat Console

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4. Click OK.

2.4.3. Changing Console Fonts

Different parts of the Console, such as table headings and regular text, have different font settings.
The font settings are stored in profiles. The profiles define the font family, size, and formatting for every
text element. There can be multiple font profiles available, and the font profiles can be private, such as
settings for a specific user or group, or public, so that any user can access them.

The default profile can be edited without having to create new profiles.

To edit or create a font profile:

1. In the main Red Hat Console window, from the Edit menu, choose Preferences.

2. Click the Fonts tab.

3. To save the new settings as a new profile, click the Save As button, and fill in the profile name.

Changing Console Fonts

17

To edit the default (or current) profile, simply begin editing the fonts.

4. In the Screen Element column, click a screen element to edit, then click the Change Font button.

5. Edit the font for that specific element. There are three settings which can be changed: the font
family, the size, and the formatting (bold or italic).

Chapter 2. Basic Tasks in the Red Hat Console

18

6. Click OK to save the profile.

7. Restart the Console to apply the changes.

To load and use a saved font profile, open the Font tab in the Preference dialog, and simply select the
font profile to use and click OK.

To delete a font profile, simply make sure that it is selected from the drop-down menu in the Fonts tab,
and click the Remove button.

2.4.4. Reordering Table Columns

The columns in a table can be rearranged by dragging them into a new position.

1. Click in the table heading.

2. Still holding down the left mouse button, drag the column to its new location. The other table
columns will automatically shift down to their new positions.