[root@apc01 ~]# nc -kvl apc01 80
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Listening on 192.168.100.107:80
Ncat: Connection from 192.168.100.107.
Ncat: Connection from 192.168.100.107:46206.
asdf
[root@apc01 ~]# nc apc01 80