nc: nc (Netcat network utility)
nc:
nc: Netcat, or "nc" as the actual program is named, is a simple utility
nc: which reads and writes data across network connections, using TCP or
nc: UDP protocol.  It is designed to be a reliable "back-end" tool that
nc: can be used directly or easily driven by other programs and scripts.
nc: At the same time, it is a feature-rich network debugging and
nc: exploration tool, since it can create almost any kind of connection
nc: you would need and has several interesting built-in capabilities.
nc: Netcat was written by *Hobbit* <hobbit@avian.org>, and is a product
nc: of Avian Research.