SELinux System Administration
Sven Vermeulen
Apache Solr Beginner's Guide
Alredo Serafini
Building DMZs for Enterprise Networks
Robert J. Shimonski & Will Schmied & V Chang & Thomas W. Shinder
Bash Pocket Reference
Arnold Robbins
Git Fundamentals
Thom Parkin
Learning Perforce SCM
Robert Cowham & Neal Ralph Firth
Git Essentials
Ferdinando Santacroce