https://github.com/decalage2/awesome-security-hardening
https://www.cisecurity.org/cis-benchmarks
https://zeltser.com/security-architecture-cheat-sheet/
https://github.com/vletoux/pingcastle
https://gist.github.com/mackwage/08604751462126599d7e52f233490efe
https://github.com/imthenachoman/How-To-Secure-A-Linux-Server