Linux System Administration

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Preface

Later, I proposed that we make each chapter a module unto itself and let the reader

complete the modules he wanted and/or needed. As this book evolved, we felt that

we’d accomplished that objective. You do not have to read this book cover to cover to

become a Linux system administrator. Simply start where you have the most interest.

When I first started using Linux, the community consisted mostly of programmers

and hobbyists. I don’t recall any discussion lists that focused on desktops or com-

mercial applications. We logged onto the Internet by starting a daemon. We didn’t

have dialers or web browsers like the ones available today. The vast majority of peo-

ple I knew did their own system administration or were in some stage of learning.

Reflecting on the time when we estimated that 30,000 Linux users existed on the

planet, I’m amazed at how many people use Linux today and haven’t the slightest

idea how to write a configuration file. Linux forums seem to be filled with people

asking how to get CUPS or Samba to work. On mailing lists, people hold detailed

discussions on the technical details of projects like Postfix, JBoss, and Monit.

Many people still itch to learn the extensive capabilities of Linux as an application

platform. If you use Linux and want to take the next step from a power user to an

administrator, this book will help you make the transition. We wrote this book with