tldr/pages/common/tcpdump.md

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# 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
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`tcpdump host {{www.example.com}}`
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- 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}}`