WebDelegator is a server solution that permits a collection of web servers to be hosted on a single IP address. The software accepts connections on a particular address, and establishes connections to the appropriate web server to fulfill requests.

HNSD gives you the possibility to give the remote access to serial port via TCP/IP...

IP Relay Server is a program that mapping the incoming connections to a predetermined IP address at real time. This allows Guest to connect a Host PC from the outside without special configurations (Private/Public, Router/Firewall/Proxy Network).