Database System Concepts 6th Edition
Abraham Silberschatz & Henry Korth & S. Sudarshan
Advanced Penetration Testing for Highly-Secured Environments
Lee Allen
Modsecurity 2.5
Magnus Mischel
RHCSA RAPID TRACK
2014
Red Hat System Administration (4)
Hadoop Cluster Deployment
Danil Zburivsky
Pro Apache Hadoop
Sameer Wadkar & Jason Venner