Active Directory глазами хакера
Ralf Hacker
Pluggable Authentication Modules
Kenneth Geisshirt
Linux Command Line and Shell Scripting Techniques
Vedran Dakic & Jasmin Redzepagic
Linux Networking Cookbook
Carla Schroder
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert