# For this example, "foo" has an IP address of 10.2.2.2 # # allow any TCP packets from the same subnet as foo is on through to host # 10.1.1.2 if they are destined for port 6667. # pass in proto tcp from 10.2.2.2/24 to 10.1.1.2/32 port = 6667 # # allow in UDP packets which are NOT from port 53 and are destined for # localhost # pass in proto udp from 10.2.2.2 port != 53 to localhost # # block anything trying to get to X terminal ports, X:0 to X:9 # block in proto tcp from any to any port 5999 >< 6010 # # allow any connections to be made, except to BSD print/r-services # this will also protect syslog. # block in proto tcp/udp all pass in proto tcp/udp from any to any port 512 <> 515 # # allow any connections to be made, except to BSD print/r-services # this will also protect syslog. # pass in proto tcp/udp all block in proto tcp/udp from any to any port 511 >< 516