Modules in FWBuilder

December 2008


FWBuilder is a nice front end to more intricate firewall setups, as it allows for a single configuration file to be quickly turned into iptables, PF and other firewall configs. One of the disadvantages I saw was that it turned on the forwarding modules of a Linux system even if the firewall was just a local one and not supposed to ever forward anything. It turns out that this can be turned off:

  1. In FWBuilder, doubleclick the firewall you want to reconfigure

  2. Click Firewall Settings ...

  3. Click the Script Options tab

  4. Deselect Load modules

With the modules thus left unloaded, their automatic loading in Linux will still provide a functional firewall.