Mastering Linux Security and Hardening
Donald Tevault
Linux in a Nutshell
Arnold Robbins & Ellen Siever & Stephen Figgins & Robert Love
Kali Linux 2018
Shiva V. N Parasram & Alex Samm & Lee Allen
Red Hat Enterprise Linux 6 Administration
Sander van Vugt
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain