Lomalarga is a VPN-like service based on SSH and Linux.
Lomalarga is a port forwarding (VPN-like) service based on SSH & Linux. Based entirely on open source. The client is written in C# and the administration is based on Linux/lighttpd/PostgreSQL/PHP, with the UI written with Google Web Toolkit.
Bunny Proxy is a light web proxy for across filtering.
GeoAccess is a plugin which can be used to restrict access to a site based on client's geolocation by utilizing GPL-ed geoip databases
ProxyDNSFilters are two tools that can be useful for web filtering: a custom filtered DNS relay server and a custom filtered Proxy server. (filtering by custom IPs, MACs and sites). Basic SOCKS v4 & v5 is also supported. Useful for schools or libraries.
Vopos gives you a visual representation of FW1 objects. It will be able to dump objects to a db or file and perform some simple checks against an internal DNS. It is useful to check consistence of configuration across a network.
Only for windows XP OpenFirewall is based on two lines of defence first WIPFW ( Kernel-mode driver ) and second tdifw ( application-mode TDI-driver ) . Is a Windows firewall easy to use like the commercial products