Introduction

Welcome to the Red Hat Enterprise Linux Introduction to System Administration.

The Red Hat Enterprise Linux Introduction to System Administration contains introductory information for new Red Hat Enterprise Linux system administrators. It does not teach you how to perform a particular task under Red Hat Enterprise Linux; rather, it provides you with the background knowledge that more experienced system administrators have learned over time.

This guide assumes you have a limited amount of experience as a Linux user, but no Linux system administration experience. If you are completely new to Linux in general (and Red Hat Enterprise Linux in particular), you should start by purchasing an introductory book on Linux.

Each chapter in the Red Hat Enterprise Linux Introduction to System Administration has the following structure:

By adopting a consistent structure, readers can more easily read the Red Hat Enterprise Linux Introduction to System Administration in whatever way they choose. For example, an experienced system administrator with little Red Hat Enterprise Linux experience could skim only the sections that specifically focus on Red Hat Enterprise Linux, while a new system adminstrator could start by reading only the generic overview sections, and using the Red Hat Enterprise Linux-specific sections as an introduction to more in-depth resources.

While on the subject of more in-depth resources, the Red Hat Enterprise Linux System Administration Guide is an excellent resource for performing specific tasks in a Red Hat Enterprise Linux environment. Administrators requiring more in-depth, factual information should refer to the Red Hat Enterprise Linux Reference Guide.

HTML, PDF, and RPM versions of the manuals are available on the Red Hat Enterprise Linux Documentation CD and online at http://www.redhat.com/docs/.

NoteNote
 

Although this manual reflects the most current information possible, read the Red Hat Enterprise Linux Release Notes for information that may not have been available prior to our documentation being finalized. They can be found on the Red Hat Enterprise Linux CD #1 and online at http://www.redhat.com/docs/.

1. Changes to This Manual

The previous version of this manual was named the Red Hat Linux System Administration Primer. It has been renamed the Red Hat Enterprise Linux Introduction to System Administration to better reflect the topics discussed, as well as to more clearly define its role in the Red Hat documentation set.

The Red Hat Enterprise Linux Introduction to System Administration has also been updated to include new features in Red Hat Enterprise Linux 3 as well as incorporating feedback from our readers. Significant changes to this manual include:

Chapter 1 The Philosophy of System Administration

This chapter has been updated to more accurately reflect Red Hat Enterprise Linux functionality.

Chapter 2 Resource Monitoring

This chapter has been updated to introduce the OProfile system-wide profiler.

Chapter 3 Bandwidth and Processing Power

This chapter has been updated to more accurately reflect Red Hat Enterprise Linux functionality.

Chapter 4 Physical and Virtual Memory

This chapter has been updated to more accurately reflect Red Hat Enterprise Linux functionality.

Chapter 5 Managing Storage

This chapter has been updated to introduce logical volume management (LVM) concepts, device naming issues, and the use of devlabel.

Chapter 6 Managing User Accounts and Resource Access

This chapter has been updated to more accurately reflect Red Hat Enterprise Linux functionality.

Chapter 7 Printers and Printing

This chapter has been updated to more accurately reflect Red Hat Enterprise Linux functionality.