How to install Linux since it is very straight forward but it gives you real world mail, DNS, proxy, web, messaging etc… server installations and configurations. System administration is all the things that one has to do to keep a computer system in a useable shape. It Includes things like backing up files and restoring , installing new programs, creating accounts for users, making certain that the filesystem is not corrupted, and so on. There is no one official Linux distribution, so different people have different setups, and many people have a setup they have built up themselves.

This book is not targeted at any one distribution, even though I use Red Hat Linux 8 and 9 the contents can be applied to any distribution. Many people have helped me with this book, directly or indirectly. I would like to especially thank my own brother Dilan Kalpa De Silva, Luckshika Jayadeva for her excellent type-setting, my ever loving mother, two sisters and my aunt Mallika Vitharana.

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