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Red Hat Linux

Welcome to the Ofcial Red Hat Linux Reference Guide.
The Ofcial Red Hat Linux Reference Guide contains useful information about your Red Hat Linux
system. From fundamental concepts, such as the structure of the Red Hat Linux le system, to the
ner points of system security and authentication control, we hope you will nd this book to be a
valuable resource.
This guide is for you if you want to learn a bit more about how your Red Hat Linux system works.
Topics that you can explore within this manual include the following:
• The le system structure
• The boot process
• The X Windowing System
• Security issues
• Network services
1. Changes To This Manual
This manual has been reorganized for clarity and updated for the latest features of Red Hat Linux 8.0.
Some of the changes include:
A New Boot Loaders Chapter
The GRUB chapter has been revised and expanded to include LILO.
An Updated Apache HTTP Server Chapter
There is now a guide for migrating from version 1.3 to version 2.0 of the Apache HTTP Server.
Also, the list of server conguration options has been updated. Special thanks to Gary Benson
and Joe Orton for his hard work on the Apache HTTP Server migration guide.
Updated LDAP Chapter
The LDAP chapter has been cleaned up and reorganized.
Updated iptables Chapter
The iptables chapter has been claried and reorganized.
Updated Tripwire Chapter
The Tripwire chapter has been claried and reorganized (and even has a fancy new illustration
;-).
Before reading this guide, you should be familiar with the contents of the Ofcial Red Hat Linux
Installation Guide concerning installation issues, the Ofcial Red Hat Linux Getting Started Guide for
basic Linux concepts and the Ofcial Red Hat Linux Customization Guide for general customization
instructions. The Ofcial Red Hat Linux Reference Guide contains information about advanced topics
that may not affect every user, depending upon how they use their Red Hat...