tcpdump: Difference between revisions
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| -D || List all interfaces. | | -D || List all interfaces. | ||
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| -i || Interface, eth1, any. | |||
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| -C || Max file size to save, all files will have subsequent numbers. | | -C || Max file size to save, all files will have subsequent numbers. | ||
Revision as of 16:19, 10 May 2025
Tcpdump prints out a description of the contents of packets on a network interface that match the boolean expression. Many flags need root permissions to run.
Install
# apt install tcpdump
Flags
| Flag | Description |
|---|---|
| -D | List all interfaces. |
| -i | Interface, eth1, any. |
| -C | Max file size to save, all files will have subsequent numbers. |
| -W | Limit the limit the number of files, use with -C. |
List all interfaces
# tcpdump -D
File size and file limits
# tcpdump -C300 -W4
