Linux Basics for Hackers: Getting Started with Networking, Scripting, and...

Hacking with Python and Kali-Linux: Develop your own Hackingtools with Python...

OpenSUSE 11.0 and SUSE Linux Enterprise Server Bible

Managing Linux Systems with Webmin: System Administration and Module Development

Red Hat RHCE/RHCSA 7 Cert Guide: Red Hat Enterprise Linux 7 (EX200 and EX300)

Machine Learning: Hacking Tools for Computer + Hacking With Kali Linux +...

Linux Shell Scripting with Bash

Linux Desk Reference