Red_Hat_Enterprise_Linux-6-Deployment_Guide-en-US.pdf

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Red Hat Enterprise Linux 6
Deployment Guide
Deployment, Configuration and
Administration of Red Hat Enterprise Linux 6
Jaromír Hradílek
Douglas Silas
Martin Prpič
Eva Kopalová
Ella Deon Lackey
Tomáš Čapek
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Deployment Guide
Petr Kovář
Miroslav Svoboda
John Ha
David O'Brien
Michael Hideo
Don Domingo
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Red Hat Enterprise Linux 6 Deployment Guide
Deployment, Configuration and Administration of Red Hat
Enterprise Linux 6
Edition 2
Author
Jaromír Hradílek
Author
Douglas Silas
Author
Martin Prpič
Author
Eva Kopalová
Author
Ella Deon Lackey
Author
Tomáš Čapek
Author
Petr Kovář
Author
Miroslav Svoboda
Author
John Ha
Author
David O'Brien
Author
Michael Hideo
Author
Don Domingo
Copyright © 2010, 2011 Red Hat, Inc.
The text of and illustrations in this document are licensed by Red Hat under a Creative Commons
Attribution–Share Alike 3.0 Unported license ("CC-BY-SA"). An explanation of CC-BY-SA is available
at http://creativecommons.org/licenses/by-sa/3.0/ . In accordance with CC-BY-SA, if you distribute this
document or an adaptation of it, you must provide the URL for the original version.
Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert,
Section 4d of CC-BY-SA to the fullest extent permitted by applicable law.
Red Hat, Red Hat Enterprise Linux, the Shadowman logo, JBoss, MetaMatrix, Fedora, the Infinity
Logo, and RHCE are trademarks of Red Hat, Inc., registered in the United States and other countries.
Linux ® is the registered trademark of Linus Torvalds in the United States and other countries.
Java ® is a registered trademark of Oracle and/or its affiliates.
XFS ® is a trademark of Silicon Graphics International Corp. or its subsidiaries in the United States
and/or other countries.
MySQL ® is a registered trademark of MySQL AB in the United States, the European Union and other
countries.
All other trademarks are the property of their respective owners.
1801 Varsity Drive
Raleigh, NC 27606-2072 USA
Phone: +1 919 754 3700
Phone: 888 733 4281
Fax: +1 919 754 3701
The Deployment Guide documents relevant information regarding the deployment, configuration and
administration of Red Hat Enterprise Linux 6. It is oriented towards system administrators with a basic
understanding of the system.
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Deployment Guide
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1. Target Audience ........................................................................................................... xvii
2. How to Read this Book ................................................................................................ xvii
3. Document Conventions .................................................................................................. xx
3.1. Typographic Conventions .................................................................................... xx
3.2. Pull-quote Conventions ...................................................................................... xxii
3.3. Notes and Warnings .......................................................................................... xxii
4. Feedback .................................................................................................................... xxiii
5. Acknowledgments ....................................................................................................... xxiii
1.1. Changing the Keyboard Layout ............................................................................. 3
1.2. Adding the Keyboard Layout Indicator ................................................................... 5
1.3. Setting Up a Typing Break .................................................................................... 6
2.1. Date/Time Properties Tool ..................................................................................... 9
2.1.1. Date and Time Properties .......................................................................... 9
2.1.2. Network Time Protocol Properties ............................................................. 10
2.1.3. Time Zone Properties .............................................................................. 11
2.2. Command Line Configuration .............................................................................. 12
2.2.1. Date and Time Setup ............................................................................... 12
2.2.2. Network Time Protocol Setup ................................................................... 13
3.1. Introduction to Users and Groups ........................................................................ 17
3.1.1. User Private Groups ................................................................................ 17
3.1.2. Shadow Passwords ................................................................................. 17
3.2. Using the User Manager Tool .............................................................................. 18
3.2.1. Viewing Users and Groups ....................................................................... 18
3.2.2. Adding a New User ................................................................................. 19
3.2.3. Adding a New Group ............................................................................... 20
3.2.4. Modifying User Properties ........................................................................ 20
3.2.5. Modifying Group Properties ...................................................................... 21
3.3. Using Command Line Tools ................................................................................ 22
3.3.1. Adding a New User ................................................................................. 22
3.3.2. Adding a New Group ............................................................................... 25
3.3.3. Enabling Password Aging ......................................................................... 26
3.3.4. Enabling Automatic Logouts ..................................................................... 27
3.3.5. Creating Group Directories ....................................................................... 28
3.4. Additional Resources .......................................................................................... 29
3.4.1. Installed Documentation ........................................................................... 29
4.1. An Overview of Managing Subscriptions and Content ........................................... 33
4.1.1. The Purpose of Subscription Management ................................................ 33
4.1.3. Subscription Management Tools ............................................................... 37
4.1.4. Subscription and Content Architecture ....................................................... 37
v
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