How This Book Is Organized

Although this book is intended to be read as a whole, I understand that many system administrators simply do not have the time to read an entire text. They must go to the topic in question and get a reasonably complete picture of the "why" as well as the "how" of that topic. To facilitate that understanding, necessary background material is summar-ized where the topic is discussed, and it is accompanied by pointers to the part of the text where the background material is more thoroughly discussed.

This book is divided into five parts: The Basics, Internet Server Configuration, Departmental Server Configuration, Maintaining a Healthy Server, and Appendices. The five parts are composed of thirteen chapters and three appendices.

The coverage of some network services spans multiple chapters. In particular, e-mail server coverage spans Chapter 1, Chapter 5, and Appendix C; and the topic of the Domain Name System spans Chapter 4 and Appendix B. However, most topics are covered in a single chapter.

Although individual chapters can be read alone (for example, you could jump directly to Chapter 6 to read about the web server configuration file), the book was designed as a unit. Most chapters reference material covered in other chapters. When such a reference is made, it contains a pointer to the chapter that covers the referenced material. If you have a specific task to study, such as setting up a Samba server, feel free to jump directly to that topic. But, if like many system administrators, you need to support the entire range of Linux network services, you will benefit from reading the entire text.

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