apt install tcpdump
tcpdump -i en0 监听特定网卡 tcpdump host 192.168.1.129 监听特定主机;监听本机跟主机192.168.1.129之间往来的通信包。出入都会被监听 tcpdump port 3000 特定端口 tcpdump tcp port 3306 and src host 192.168.1.129 监听来自主机192.168.1.129在端口3306上的TCP数据包 tcpdump ip host 192.168.1.129 and 192.168.1.10 监听特定主机之间的通信 tcpdump ip host 192.168.1.129 and !192.168.1.10 除了1.129核1.10之外的通信