mirror of https://github.com/CrimsonTome/tldr.git
36 lines
761 B
Markdown
36 lines
761 B
Markdown
# tcpdump
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> Dump traffic on a network.
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- List available network interfaces:
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`tcpdump -D`
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- Capture the traffic of a specific interface:
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`tcpdump -i {{eth0}}`
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- Capture all TCP traffic showing contents (ASCII) in console:
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`tcpdump -A tcp`
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- 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 destination port:
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`tcpdump -i {{eth0}} src {{192.168.1.1}} and dst {{192.168.1.2}} and dst port {{80}}`
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- Capture the traffic of a network:
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`tcpdump net {{192.168.1.0/24}}`
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- Capture all traffic except traffic over port 22 and save to a dump file:
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`tcpdump -w {{dumpfile.pcap}} not port {{22}}`
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- Read from a given dump file:
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`tcpdump -r {{dumpfile.pcap}}`
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