Beginning Security with Microsoft Technologies
Vasantha Lakshmi
Efficient Linux at the Command Line
Daniel J. Barrett
Mastering pfSense, Second Edition
David Zientara
Jenkins 2: Up and Running
Brent Laster
Mastering Hyper-V 2012 R2 with System Center and Windows Azure
John Savill
Network Security Bible
Eric Cole & Ronald L. Krutz & James Conley
Microsoft Windows Networking Essentials
Darril Gibson