Listen open ports

Copy# netstart -nat

Copy# sockstat -4 -l
# sockstat -c
# sockstat -c -4
# sockstat -c -4 | grep ssh
# sockstat -c -4 | grep 22
# sockstat -4 -l | grep :22
# netstat -a -n | grep LISTEN
# netstat -a | egrep 'LISTEN|Proto|Active'
# netstat -a | egrep 'Proto|LISTEN'
# lsof -i :22

Copy# netstat -ntulp
# lsof -i