Simple Iptables Firewall
SmartDog is anti-spam,intrution detection software for windows/linux. And, it contains many features that are all requried by a normal user to network administrator. Visit to the home page for more clarity.
Tunnelizer is an application suite that allows you to tunnel TCP and UDP traffic through a firewall or proxy server. Communication between the tunnel ends can be either direct or through a SOCKS or HTTP proxy server, and can be optionally encrypted.
NNTP proxy TCP forwarding firewall piercing and redirecting for obnoxious news servers
Voodoo Exchange Networking Library is a D library that provides a simple API for creating streaming, peer-to-peer TCP connections between two clients, even if they are behind NATs or firewalls, by attempting multiple NAT traversal algorithms.
WarpTunnel is a porting of http tunnel 3.3 from C into .NET C# platform. WarpTunnel creates a bidirectional virtual data path tunnelled in HTTP requests through firewall or proxy servers.Support DIGEST proxy & SOCKS4/4a/5.Client for Compact Framework 2.0
jNuFw is a library and a client written in Java to the authenticating firewall NuFw.
A python binding for the iptables tools. The binding allows direction manipulation of the iptables through an object oriented and transaction based manner. The binding removes the need to call iptable on the command line in python applications.
The security proxy is a reverse proxy that hides and serves several webapps. It handles their authentication needs transparently (single sign-on), may be configured to impose HTTPS client connections (on URL basis) and rewrite URLs of content it delivers.