Port forwarding in linux [Details]

Rinetd is ancient, small, efficient, and open-source

Rinetd is a tool for redirecting the Transmission Control Protocol (TCP) connection in Unix and Linux operating systems. Rinetd is a single-process server that processes any number of connections to the address/Port Pairs specified in the configuration file etc/rinetd. Although rinetd uses non-locking I/O operations as a single process, it may redirect many connections without adding additional burden on this machine.

1. download the software rinetd.tar.gz.tar.

Http://www.boutell.com/rinetd/

2. decompress, compile, and install

Tar xvf rinetd.tar.gz.tar

Cd rinetd

Make & make install

 

3. Write the configuration file

Vi/etc/rinetd. conf

File Format:

Source Address Source Port Destination Address destination port

For example, on the local machine:

0.0.0.0 2200 0.0.0.0 22

3. Start

Rinetd

/Etc/rinetd. conf will be read by default

If you specify the rinetd-c path file