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tldr/pages/common/tcpdump.md
Srinivasan R e4114fa6cc Normalize the final new line
Fixes #310
Some files had no newlines, some had 1 newline and some more than 1 newline.
Normalize them all to have only 1 newline at the end of all files.
2015-10-28 14:03:06 +05:30

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Markdown

# 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}}`
- capture all traffic except traffic over port 22 and save to a dump file
`tcpdump -w dumpfile.pcap not port 22`