How to use pfsense2.0 to stop the link of PC. port 80 &53 first
How to use pfsense to stop the link of PC. port 80 &53 first
If you want to block LAN PCs from accessing port 80 and 53 (presumably from Internet hosts?) then put rules to block those ports (with the proper protocol selected!) on the LAN tab, at the TOP of the list.
If that is not what you are after, it would help if you restated your question in a more detailed manner.