More and more businesses are turning to Linux as a cost-effective, rock-solid solution for Internal networks and Internet connectivity. This is the first book that systematically teaches Linux system administrators the real- world skills they'll need to succeed. Coverage includes everything you need to know to manage Linux networking, file service, E-mail, security, print sharing, Web, FTP and NetNews. Learn the latest practical information on configuring hardware and peripherals, customizing the kernel, tuning Linux performance, handling upgrades, and choosing among Linux distributions. Get more productive with the book's extensive practical scripts and automation techniques. There's nothing "academic" in this comprehensive every word was written by expert system administrators who work with Linux every day -- and love it!