Debian GNU / Linux operating system approaches Linux system administration differently than other popular Linux distributions, supports text-based configuration mechanisms over graphical user interface (GUI). Debian's open development cycle and strict quality control by the developers help Debian to continue to gain popularity, despite its reputation as the only operating system for computer professionals and hardcore enthusiasts. The purpose of this book is to give readers sufficient insight into the working Debian project and operating systems so that they will understand the solutions that have evolved as part of the Debian system over the past decade.