This chapter is an overview to Linux system administration, including a number of advanced features which aren't necessarily for system administrators only. Just as every dog has its day, every system has its administrator, and running the system is a very important and sometimes time-consuming job, even if you're the only user on your system.
We have tried to cover here the most important things about system administration you need to know when you use Linux, in sufficient detail to get you comfortably started. In order to keep it short and sweet, we have only covered the very basics, and have skipped many an important detail. You should read the Linux System Administrator's Guide if you are serious about running Linux. It will help you understand better how things work, and how they hang together. At least skim through it so that you know what it contains and know what kind of help you can expect from it.