tldr/pages/common/tcpdump.md

493 B

tcpdump

Dump traffic on a network

  • capture the traffic of a specific interface

tcpdump -i {{eth0}}

  • capture all TCP traffic showing contents (ASCII) in console

tcpdump -A tcp

  • capture the traffic from or to a host

tcpdump host {{www.example.com}}

  • capture the traffic from a specific interface, source, destination and port

tcpdump -i {{eth0}} src {{192.168.1.1}} dest {{192.168.1.2}} and port 80

  • capture the traffic of a network

tcpdump net {{192.168.1.0/24}}