Linux Command Line and Shell Scripting Bible
Christine Bresnahan & Richard Blum
RHSA I
Susan Lauber, Philip Sweany , Rudolf Kastl, George Hacker
Red Hat System Administration (1)
Mastering Python Regular Expressions
Félix López & Victor Romero
Web Crawling and Data Mining With Apache Nutch
Zakir Laliwala & Abdulbasit Fazalmehmod Shaikh
OpenStack Operations Guide
Tom Fifield & Lorin Hochstein & Jonathan Proulx & Everett Toews & Diane Fleming & Joe Topjian & Anne Gentle
Moving to Office 365: Planning and Migration Guide
Matthew Katzer
CentOS 6 Linux Server Cookbook
Jonathan Hobson