NetMod

NetMod is a lightweight utility that can act as a proxy server with advanced capabilities, namely the ability to modify requests and access blocked websites behind the firewall. As you probably hinted, the application comes with a built-in SSH client, OpenVPN and SSL/TLS tunneling, so you are able to access everything blocked for your system or geographic area.

The program comes with a simple interface that consists of two main areas, namely the Payload and the List of Proxies in the lower area where the hosts and ports are shown. In addition to acting as a TCP HTTP request and response modifier, the app includes several other useful network tools. For starters, the HTTP ping enables you to determine whether the current configuration is valid and connects to the Internet.

At the same time, you have a Host Checker that enables you to verify whether the proxy servers you employ are working properly. The Payload Generator is a tool that allows you to test various methods and injection modes, whereas the Response Replacer is where you can manually set up how the query should behave. You can create new network configurations from the Settings window where you can alter the Primary and Secondary DNS along with UDPGW and SSH listening ports.