Awesome

rinetd, by Thomas Boutell and Sam Hocevar. Released under the terms of the GNU General Public License, version 2 or later.

This program is used to efficiently redirect connections from one IP address/port combination to another. It is useful when operating virtual servers, firewalls and the like.

To build under Unix, run ./bootstrap to create the configuration files, then ./configure to create the build files, and then type make to build rinetd. To install, type make install as root.

For documentation run make install, then type man rinetd for details. Or, read index.html in your browser.