Who remembers when port 0 could cause a kernel panic
RT: https://eupolicy.social/users/bert_hubert/statuses/117571655060783901
Recommended read - for practical reasons it is very hard to make a TCP connection to port 0, or to run a client on port 0. Yet, when acidvegas scanned the internet on port 0, they found a lot of interesting stuff:
https://acid.vegas/blog/the-port-that-does-not-exist/