(via Freewarewiki)
I have not personally used this, but it comes recommended from the folks at Freewarewiki and Fran Bott, webmistress of GammawGeek. The firewall is free for personal use, from Fileseclab. You can also buy source code and 6 months support for personal use $480 or commercial use for $3800. From what little I’ve read about this, it appears to be a decent alternative to ZoneAlarm.
[tags]PC security, Free firewall[/tags]