http://netcat.sourceforge.net

From the web site:

''Netcat is a featured networking utility which reads and writes data across network connections, using the TCP/IP protocol. It is designed to be a reliable "back-end" tool that can be used directly or easily driven by other rograms and scripts. At the same time, it is a feature-rich network debugging and exploration tool, since it can reate almost any kind of connection you would need and has several interesting built-in capabilities.''


Also see: http://en.wikipedia.org/wiki/Netcat

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[Category Internet]