A Preference Pane for Leopard that gives you back control over the packet based firewall from the Tiger days
Version: 0.2ipfw Preference Pane (short ipfwPane) lets you control the ipfw(8) firewall again. With Leopard Apple did introduce the new application firewall. The former packet based firewall (which Mac OS X inherited from FreeBSD) does however still exist.
Operating System: Mac OS X
There is just no longer an user interface available for it, as it was in 10.4. This is the problem ipfwPane solves: it provides nearly the same simple interface like the Sharing preference pane in the Tiger days did.
This gives you again a more fine-grained control over which ports you want to allow and which you want to block. And other than with Leopards application firewall you can now also block built-in applications and services if you want to.
NOTE: ipfwPane is licensed and provided under the terms of the 2-clause BSD license.