NuFW lays on Netfilter, the state of the art IP filtering layer from the Linux kernel. It fully integrates with Netfilter and extends its capabilities. The daemons currently run on Linux and software clients are available for Windows, Linux, FreeBSD et Mac OSX.

NuFW can :

• Authenticate any connection that goes through your gateway or only from/to a chosen subset or a specific protocol (iptables is used to select the connections to authenticate).
• Perform accounting, routing and quality of service based on users and not simply on IPs.
• Filter packets with criterium 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.