# CLI Tcpdump

<https://www.tcpdump.org/>

Powerful command-line packet analyzer

使用例子：

\`\`\`sh sudo tcpdump -n -i any port 53 -v

sudo tcpdump -i any port 8000

sudo tcpdump -n -v -i any port 8000 and host 1.2.3.4

\`\`\`

CheatSheet(from <https://www.comparitech.com/net-admin/tcpdump-cheat-sheet/> )：

参考资料：

1. <https://jvns.ca/tcpdump-zine.pdf>