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tcpdump: add mnemonics and sudo (#17083)

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Managor 2025-07-03 03:50:06 +03:00 • committed by GitHub
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14
pages/common/tcpdump.md
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@ -11,13 +11,13 @@
`sudo tcpdump {{[-i|--interface]}} {{eth0}}` `sudo tcpdump {{[-i|--interface]}} {{eth0}}`
- Capture all TCP traffic showing contents (ASCII) in console: - Capture all TCP traffic showing contents ([A]SCII) in console:
`tcpdump -A tcp` `sudo tcpdump -A tcp`
- Capture the traffic from or to a host: - Capture the traffic from or to a host:
`tcpdump host {{www.example.com}}` `sudo tcpdump host {{www.example.com}}`
- Capture the traffic from a specific interface, source, destination and destination port: - Capture the traffic from a specific interface, source, destination and destination port:
@ -25,12 +25,12 @@
- Capture the traffic of a network: - Capture the traffic of a network:
`tcpdump net {{192.168.1.0/24}}` `sudo tcpdump net {{192.168.1.0/24}}`
- Capture all traffic except traffic over port 22 and save to a dump file: - Capture all traffic except traffic over port 22 and [w]rite to a dump file:
`tcpdump -w {{dumpfile.pcap}} port not {{22}}` `sudo tcpdump -w {{dumpfile.pcap}} port not {{22}}`
- Read from a given dump file: - [r]ead from a given dump file:
`tcpdump -r {{dumpfile.pcap}}` `tcpdump -r {{dumpfile.pcap}}`