tnv (The Network Visualizer or Time-based Network Visualizer) depicts network traffic by visualizing packets and links between local and remote hosts.
tnv is intended for network traffic analysis to facilitate learning what constitutes 'normal' activity on a network, investigating packet details security events, or network troubleshooting. tnv can open saved libpcap (from tcpdump, windump, ethereal, etc.) formatted files or capture live packets on the wire, and export data in libpcap format or save the data to a MySQL database to enable examining trends over time.
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