Practical Binary Analysis: Build Your Own Linux Tools for Binary ...
Dennis Andriesse
Jump Start PHP
Callum Hopkins
Linux in a Nutshell
Arnold Robbins & Robert Love & Ellen Siever & Stephen Figgins
Essential System Administration
Æleen Frisch
Saltstack Documentation - Release 2019.2.1
SaltStack, Inc.
SELinux User's and Administrator's Guide
Barbora Ančincová & Ioanna Gkioka & Tomáš Čapek & Mirek Jahoda