port 18

AnalogX PortBlocker allows you to block the Internet port of most servers.

EASY SHIPPING Main Fun is Shipping Schedule, include zip code and port search.

Automatically detect if the modem on the selected COM port is connected.

Recording and playing back data from the serial communications port.

MacMediSift is mainly a port of MediaSift for Windows from David Griffiths.

FPipe is a source port forwarder/redirector.

Command line port scanner.

Redirect communication data from any serial port into a text file and analyze it

This is a trojan horse port scanner. It scans for over 150 trojan horse ports...

NCD relay controllers offer computer control from the RS-232 serial port