Who is on my Nework Port?

Tracking Port ownership in networking is critical.

krist@ghost1:~$ sudo lsof -i :80
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
nginx 1268 root 6u IPv4 16650 0t0 TCP *:http (LISTEN)
nginx 1268 root 7u IPv6 16651 0t0 TCP *:http (LISTEN)
nginx 1269 www-data 6u IPv4 16650 0t0 TCP *:http (LISTEN)
nginx 1269 www-data 7u IPv6 16651 0t0 TCP *:http (LISTEN)
nginx 1270 www-data 6u IPv4 16650 0t0 TCP *:http (LISTEN)
nginx 1270 www-data 7u IPv6 16651 0t0 TCP *:http (LISTEN)

Who is on my Nework Port?
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