1) Free software programmed in C
Found on
https://www.crosswordclues.com/clue/tcpdump
tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. Distributed under the BSD license, tcpdump is free software. Tcpdump works on most Unix-like operating systems: Linux, Solaris, BS...
Found on
http://en.wikipedia.org/wiki/Tcpdump
No exact match found.
