Hello from someone who just signed up

I have just signed up for the Cyber Security Course, looks awesome.! It looks like I have a lot to learn !

My background - located in Canada, I have 30 years of Unix (mostly HP-UX) and Linux (mostly Red Hat). Have done very little on security, only implemented the NSA recommendations for hardening Red Hat, but it was for RHEL 5, and they have not published it for RHEL 6 or RHEL 7

John

Welcome. Linux sys admin is a good background to start.