GTCop Professional Security Appliance aims to provide a powerful tool for satellite communications, with enhanced QoS and bandwidth controls. As derived from IPCop Firewall, it is a stable, secure, easy to configure and maintain GNU/Linux firewall box.
Provide secure, quality, user-friendly and fail-proof access to internet manager for IPTABLES-DENY-ALL-based Linux configuration of firewall, including traffic and time accounting, logging, auto-disconnection. Software for i-net clubs and caffee admins
MRTA is the complete package for network traffic accounting across themultiple routers and clients. It allows you to manage firewall accounting rules remotely and provides various traffic accounting reports
UNIX billing system, for network servers, voip, etc.
Free Proxy Server for Win32 - supports HTTP, HTTPS, FTP protocols and TCP-mapping
Udpproxy is very simple but usefull tool for udp traffic forwarding. Can be used if you can't or don't want to mess with kernel level forwarding.
iptables based port (service) traffic counter with accounting capabilities