Bash Scripting
Moaml Mohmmed & Max Beerbohm
Practical Ansible
Vincent Sesto
Hacking - The art of exploitation
Jon Erickson
Pluggable Authentication Modules
Kenneth Geisshirt
The Complete Metasploit Guide
Sagar Rahalkar
The the Complete Metasploit Guide
Sagar Rahalkar & Nipun Jaswal