tcpdump 采用 libpcap 1.7.4 库抓包网络数据。
另请参阅： Documentation
基本语法
tcpdump [-aAbdDefhHIJKlLnNOpqStuUvxX#] [ -B size ] [ -c count ]
[ -C file_size ] [ -E algo:secret ] [ -F file ] [ -G seconds ]
[ -i interface ] [ -j tstamptype ] [ -M secret ] [ --number ]
[ -Q in|out|inout ]
[ -r file ] [ -s snaplen ] [ --time-stamp-precision precision ]
[ --immediate-mode ] [ -T type ] [ --version ] [ -V file ]
[ -w file ] [ -W filecount ] [ -y datalinktype ] [ -z postrotate-command ]
[ -Z user ] [ expression ]
选项参数
| 参数 | EN 解释 | 中文翻译 | Remark |
|---|---|---|---|
| Function | 命令 | 文字解释 | 示例 | 示例解释 |
|---|---|---|---|---|
| Version | tcpdump --version | 展示版本信息 | ||
| 帮助 | tcpdump --help | 展示帮助信息 |
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