Millions of companies are turning to Linux as a cost-effective, rock-solid solution for internal networks and Internet connectivity. This book systematically teaches system administrators the real-world Red Hat Linux 6.0 skills they need to succeed. Both novice and experienced system administrators can use this book to master Linux networking, file service, E-mail, security, backups, print sharing, Web, FTP, NetNews, and much more. They'll find practical guidance on configuring hardware and peripherals, tuning Linux performance, even enhancing productivity with scripts. This edition contains brand-new chapters on installation, the PAM RedHat Security Model, the RedHat package manager, and the latest 2.2 kernel enhancements. It also covers configuring and managing Linux systems with GNOME, Red Hat's default graphical user interface.