Penguin
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A Packet Sniffer is a program that can record and filter network traffic on a machine or network switch.

Most of these programs (on Linux at least) use the pcap (Packet Capture) library.

Snort includes packet sniffing capabilities.

tcpdump(8) is a command line sniffer.

A pretty-yet-powerful packet sniffer is Ethereal, which uses a point-and-click GUI.


Part of CategoryNetworking. See also packet(7).