Notes
- http://blog.fourthbit.com/2014/12/23/traffic-analysis-of-an-ssl-slash-tls-session
- https://danielmiessler.com/study/tcpdump/#host-ip
- https://tools.ietf.org/html/rfc5246#section-6.2.3
- https://networkengineering.stackexchange.com/questions/20227/find-ssl-version-in-tcp-packets-in-established-tcp-connection