Its a Identity based Firewall
BSEditor: NuFW adds user-based filtering to Netfilter, the state of the art IP filtering Layer from the Linux Kernel. Its exclusive Algorithm allows authenticated filtering even on multiuser computers.

NuFW can be seen as an Identity access management solution, at the network level.

Features:

-Authenticate any connection that goes through your Gateway or only from/to a chosen subset or a specific protocol.
-Perform accounting, routing and quality of service based on users and not simply on IP addresses.
-Filter packets with criteria such as application and OS used by distant users.
-Log all traffic in SQL with username and application information
-Be the key of a secure and simple Single Sign On system.

NuApplet2 is graphical client for NuFW. It is a QT application using the client authentication library distributed with NuFW.

It is a user friendly alternative to the console client nutcpc.
It is multilingual. For the moment only french and english are supported, but contributions are welcome.
Certificate authentication support. you can free download NuFW for Linux 2.4.0 Beta1 now.