Systemd beginner tutorial

https://www.golinuxcloud.com/beginners-guide-systemd-tutorial-linux/

Mockito

http://blog.rseiler.at/2014/06/explanation-how-proxy-based-mock.html

TLS session reuse

https://vincent.bernat.ch/en/blog/2011-ssl-session-reuse-rfc5077

2 Phase commit and how could one design systems that do not need a 2 Phase commit

http://dbmsmusings.blogspot.com/2019/01/its-time-to-move-on-from-two-phase.html