http://www.debianadmin.com – PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) solution. Boasting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, 802.1X support, layer-2 isolation of problematic devices, integration with the Snort IDS and the Nessus vulnerability scanner; PacketFence can be used to effectively secure networks -- from small to very large heterogeneous networks. Install PacketFence on Debian squeeze To install it, you simply have to add the Inverse repository under /etc/apt/sourc (Distributions)