tcpdump

最新推荐文章于 2025-07-17 09:55:49 发布

翻译最新推荐文章于 2025-07-17 09:55:49 发布 · 692 阅读

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本文介绍了tcpdump这一流行的网络诊断工具，详细解释了其如何捕获并打印TCP包头，以及如何设置过滤条件来满足特定需求。文章还列举了一些常用的选项参数，如将网络地址转换为名称、指定抓包数量、输出匹配代码等。

`tcpdump`

Another popular diagnostic tool is tcpdump. This utility will print, or dump, the TCP packer headers matching the criteria it is given. It has several options you may find useful. Some of the more commonly used options are given here:

-a: Attempts to convert network addresses to names.
-c: Ends after receiving the designated number of packets.
-d: Dumps the compiled packet-matching code in a human readable form to standard output and stops.
-dd: Dumps packet-matching code as a C program fragment.
-ddd: Dumps packet-matching code as decimal numbers.
-F: Uses the designated file as input for the filter expression.
-i: Listens on a particular interface.
-n: Don’t convert host addresses to names.
-p: Don’t put the interface into promiscuous mode.