
1) Free software programmed in C
Found on
https://www.crosswordclues.com/clue/netcat

Netcat is a computer networking service for reading from and writing to network connections using TCP or UDP. Netcat is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool, since it can produce almost any kind ...
Found on
http://en.wikipedia.org/wiki/Netcat
No exact match found.