IPcop

IPCop is a Linux firewall distribution built on the Linux netfilter framework. IPCop is geared towards home and SOHO users whose sole purpose is to protect the networks it is installed on. The IPCop is a GNU/GPL tool that offers standalone firewall to the internet. IPCop features secure https web administration GUI, DHCP Server, Proxying (Squid), DNS Proxying, Dynamic DNS, Time Server, Traffic Shaping, Traffic/Systems/Firewall/IDS graphing, Intrusion Detection (Snort), ISDN/ADSL device support and VPN (IPSec/PPTP) functionality.