scrub
scrub all
scrub in
scrub out
scrub in all
scrub from any to any
block
block return
block return-rst proto tcp
pass
pass in no state
pass out no state
pass all no state
block in all
block out all
block from any to any
pass in from any to any
pass out from any to any
block on lo0
pass on lo0 all
block on lo0 from any to any
pass proto tcp flags S/SA
pass proto udp keep state
pass in proto udp all keep state
pass out proto udp from any to any keep state
pass out on lo0 proto tcp from any to any port 25 keep state