moz://a SSL Configuration Generator

https://ssl-config.mozilla.org/#server=nginx&server-version=1.17.0&config=intermediate
Interesting uber-geeky SSL/TLS config tool for various web servers

How we fine-tuned HAProxy to achieve 2,000,000 concurrent SSL connections

https://medium.freecodecamp.com/how-we-fine-tuned-haproxy-to-achieve-2-000-000-concurrent-ssl-connections-d017e61a4d27
Tour-de-force of front-end proxying via HA Proxy. 

HAProxy The Reliable, High Performance TCP/HTTP Load Balancer

http://www.haproxy.org/
Incredibly ugly website for wonderful HTTP proxy software.