SSH - The Secure Shell (2nd Edition)
Daniel J. Barrett & Richard E. Silverman & Robert G. Byrnes
Programming Perl
Tom Christiansen & Brian D Foy & Larry Wall & Jon Orwant
JavaScript: The Good Parts
Douglas Crockford
Java in a Nutshell
David Flanagan & Benjamin J. Evans
Hackers & Painters
Paul Graham
97 Things Every Programmer Should Know
Kevlin Henney
Revolution in the Valley
Andy Hertzfeld
Data Analysis with Open Source Tools
Philipp K. Janert
DNS and BIND, 5th Edition
Cricket Liu & Paul Albitz
The Cathedral & the Bazaar
Eric S. Raymond
vi and Vim Editors Pocket Reference
Arnold Robbins
Information Architecture: For the Web and Beyond
Louis Rosenfeld & Peter Morville & Jorge Arango
Head First Java
Kathy Sierra & Bert Bates
head first (3)
Git Pocket Guide
Richard E. Silverman