FreeBSD Multi PPP daemon
HTTP proxy to block ads and customize webpages
Intelligently block brute-force attacks by aggregating system logs
edit and replay captured network traffic
Nagios Open Source network monitoring software - The Standard In ITM
Full-featured enterprise network management tool
AS2 1.1 server implementation in Java
Robust and flexible VPN network tunnelling
A free Usenet server with SQL backend and RBAC.
A library for blocking access to network on-the-fly