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PACKET SNIFFER : WIRESHARK

Wireshark is a fantastic open source network protocol analyzer for Unix and Windows. It allows you to examine data from a live network or...

Nmap ("Network Mapper") is a free and open source utility for network exploration or security auditing. Many systems and networ...

Tcpdump is the classic IP sniffer which requires fewer system resources. It is great for tracking down network problems or monitoring a...