tcpdump

Usage

网卡:

tcpdump -i eth0

源/目标地址:

tcpdump src 1.1.1.1
tcpdump dst 1.0.0.1

源/目标CIDR:

tcpdump net 1.2.3.0/24

端口号:

tcpdump port 3389
tcpdump src port 1025

tcpdump portrange 21-23

写到文件:

tcpdump port 80 -w capture_file

读文件:

tcpdump -r capture_file


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