There's some kind of bug. When I change the ssh port in Services Config -> SSH Configuration, you would expect this part of the
/etc/csf/csf.conf to change accordingly:
# This list is replaced, if present, by "Port" definitions in
# /etc/ssh/sshd_config
PORTS_sshd = "2221"
But it doesn't. For me, I had to change this setting and manually open the port in firewall settings. So this PORTS_sshd does nothing. Definitely glitchy.