"French open-source company INL has recently released the latest version of its next-generation firewall, NuFW 2.1.1.
"NuFW starts, like most Linux firewall software does, on the foundation of the Linux kernel's Netfilter, a set of basic IP (Internet Protocol) hooks that allows kernel modules to register callback functions with the network stack. In most distributions, it's used with iptables to create generic Linux firewalls..."
