# Block & Log incoming SSH
block in log on $ext_if proto tcp from any to $internal_net port 22
# Block windows
block in on $ext_if proto { tcp,udp } from any to $internal_net port $ports_win
# Block some outgoing peer-to-peer
block out on $ext_if proto { tcp, udp } from $internal_net to any port $ports_ptp
# Allow this SSH connection
pass in on $ext_if proto tcp from any to 1.2.3.4 port 22