Another packtpub post, I know, sorry
Hope this one will be at least interesting
Kali Linux is 'security testing' Linux, has the tools to probe vulnerabilities.
You don't have to be a security guru to take interest in your PC security
If you're good at this, you'll get paid well to just sit in a room and probe all of a company's servers and resources and report back any vulnerabilities
Free until 10am tomorrow 1/11/2018 (AEST)
Is it Paleo?