NatACL is a firewall group policy controller for Linux. It makes use of IPTables forcing policy against network behavior generated by users.
You can download it from the following link: https://packetstormsecurity.com/files/download/49056/NatACL.3.0.Beta11.tgz
Source: https://packetstormsecurity.com/files/49056/NatACL.3.0.Beta11.tgz.html