[Unix] tcpdump 數據包剖析器指令指南

Intro

Wikipedia – tcpdump

MAN PAGE OF TCPDUMP


用法

$ tcpdump -i [interface] '[expression]'

$ tcpdump -i en0 'tcp && host www.yidas.com'

# No interface flag is equal to any
$ tcpdump -i any 'port 22'

tcpdump Expression Manual

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