BSD Hacks
Dru Lavigne
SpamAssassin
Alan Schwartz
The Design and Implementation of the Freebsd Operating System
Marshall Kirk McKusick & George V. Neville-Neil
SELINUX: NSA's Open Source Security Enhanced Linux
Bill McCarty
Apache Cookbook
Ken A. L. Coar & Richard Cooper Bowen
RHCSA/RHCE Red Hat Linux Certification Study Guide
Michael Jang
Linux Cookbook
Carla Schroder
How Linux Works: What Every Superuser Should Know
Brian Ward
OCP: Oracle 10g New Features for Administrators Study Guide: ...
Bob Bryla & Biju Thomas
Learning GNU Emacs
Debra Cameron & James Elliott & Marc Loy & Bill Rosenblatt & Eric S. Raymond
Linux Device Drivers
Jonathan Corbet & Alessandro Rubini & Greg Kroah-Hartman
Slackware Linux Essentials
Chris Lumens & David Cantrell & Alan Hicks & Logan Johnson
Linux Kernel Development
Robert Love
Solaris 9 System Administration Training Guide & Exam Cram 2 ...
Unknown
Fixing Windows XP Annoyances
David Karp
Google Hacks: Tips & Tools for Finding and Using the World's ...
Rael Dornfest & Paul Bausch & Tara Calishain
Linux System Administration
Tom Adelstein & Bill Lubanovic
Linux in a Nutshell
Ellen Siever & Stephen Figgins & Robert Love & Arnold Robbins
LPI Linux Certification in a Nutshell
Adam Haeder & Stephen Addison Schneiter & Bruno Gomes Pessanha & James Stanger
LPIC-2 Linux Professional Institute Certification Study Guide: ...
Roderick W. Smith