Any alternative firewall solutions for debian that aren't based on netfilter / iptables? [closed]
As far as I know, iptables is the linux firewall. Never in all my years working with linux have I ever heard nor seen of any alternatives.
Do you have the option of just running the firewall layer on the host OS?
There's always Debian GNU/kFreeBSD which ports the FreeBSD kernel the Debian/GNU userland. This would allow you to use pf as your firewall. Unfortunately, as of current (Debian 6/Squeeze) GNU/kFreeBSD is considered a "techninical preview", which means not ready for production.