Firewall with addon capabilities

Firewall with addon capabilities including IPS

Aimed at creating a complete, embedded firewall software package that, when used together with an embedded PC

Includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface

Flexible, affordable alternative to proprietary, hardware-based, routers, firewalls, VPN concentrators and intrusion prevention devices. Enterprise ready.

List of Linux firewall distros

Firewall, application-level proxies for various protocols (HTTP, FTP, POP3, SMTP) with antivirus support, virus and spamfiltering for email traffic (POP and SMTP), content filtering of Web traffic and VPN solution (based on OpenVPN)

Network, Web and Mail Security with VPN functionality and protects up to 50 IP addresses (free home version). Enterprise versions available as well.

Untangle provides a powerful suite of Internet management applications for small-to-medium businesses and education institutions.