Apache: The Definitive Guide: The Definitive Guide, 3rd Edition
Tomcat: The Definitive Guide: The Definitive Guide
SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys (IT Mastery Book 12)
Site Reliability Engineering: How Google Runs Production Systems
What Every Web Developer Should Know About HTTP (OdeToCode Programming Series Book 1)
CompTIA Security+ All-in-One Exam Guide, Fourth Edition (Exam SY0-401)
Professional IIS 7
Linux Command Line and Shell Scripting Bible
How Linux Works, 2nd Edition: What Every Superuser Should Know