Endian Firewall is a linux security distribution that turns every system into a full featured security appliance. The software has been designed with "usability in mind" and is very easy to install, use and manage, without losing its flexibility.
The features include:
- a stateful packet inspection firewall
- application-level proxies for various protocols (HTTP, POP3, SMTP)
- antivirus support, virus and spamfiltering for email traffic (POP and SMTP)
- "hassle free" VPN solution (based on OpenVPN).
More info on: http://www.efw.it/