Network Security Essentials: Applications and Standards
William Stallings
Pro Apache Hadoop
Sameer Wadkar & Jason Venner
The Design and Implementation of the FreeBSD Operating System
Marshall Kirk McKusick & George V. Neville-Neil & Robert N. M. Watson
MongoDB Basics
David Hows & Peter Membrey & Eelco Plugge
Getting Started With Memcached
Ahmed Soliman