A quick intro to sniffers: Wireshark/Ethereal, ARPSpoof, Ettercap, ARP poisoning
When I tell some of my coworkers that I�m sniffing the network, they have a tendency to look at me funny. A Sniffer (also know as a Network Analyzer) is a piece of software that can look at network traffic, decode it, and give meaningful data that a network administrator can use to diagnose problems on a network. Sniffers are also useful tools for deviant computer users since they can be used to pull plain text passwords off a network.
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