Linux 系统（运维）tcpdump 抓包命令

tcpdump -i any host ip地址（例192.168.1.1） -n

yum install tcpdump -y

tcpdump: verbose output suppressed, 
use -v or -vv for full protocol decode listening on any, 
link-type LINUX_SLL (Linux cooked), 
capture size 262144 bytes 12:46:39.994082 IP 192.168.1.1 > 192.168.1.2: ICMP echo request, id 12555, seq 13, length 64 
12:46:39.994140 IP 192.168.1.2 > 192.168.1.1: ICMP echo reply, id 12555, seq 13, length 64 
12:46:40.995101 IP 192.168.1.1 > 192.168.1.2: ICMP echo request, id 12555, seq 14, length 64 
12:46:40.995144 IP 192.168.1.2 > 192.168.1.1: ICMP echo reply, id 12555, seq 14, length 64 
12:46:41.996738 IP 192.168.1.1 > 192.168.1.2: ICMP echo request, id 12555, seq 15, length 64 
12:46:41.996783 IP 192.168.1.2 > 192.168.1.1: ICMP echo reply, id 12555, seq 15, length 64 
12:46:42.997791 IP 192.168.1.1 > IP 192.168.1.2 : ICMP echo request, id 12555, seq 16, length 64 
12:46:42.997828 IP 192.168.1.2 > IP 192.168.1.1: ICMP echo reply, id 12555, seq 16, length 64 
12:46:43.998973 IP 192.168.1.1 > IP 192.168.1.2 : ICMP echo request, id 12555, seq 17, length 64

tcpdump -i eth0    #抓取所有经过网卡eth0数据包
tcpdump -i lo     #抓取环回口的数据包

tcpdump host 192.168.10.10        #抓取所有IP为192.168.10.10的数据包
tcpdump src host 192.168.10.10    #抓取所有源IP为192.168.10.10的数据包
tcpdump dst host 192.168.10.10    #抓取所有目的IP为192.168.10.10的数据包

tcpdump port 1234      #抓取所有端口为1234的网络数据 
tcpdump src port 1234  #抓取所有源端口为1234的网络数据 
tcpdump dst port 1234  #抓取所有目的端口为1234的网络数据

tcpdump udp   #抓取UDP协议的数据包
tcpdump icmp   #抓取ICMP协议的数据包

tcpdump -i eth1 'tcp[tcpflags] = tcp-syn'   #抓取所有经过网卡1的SYN类型数据包

tcpdump -i eth1 udp dst port 53  #抓取经过网卡eth1的所有DNS数据包（默认端口） 

tcpdump -i eth1 ‘((tcp) and ((dst net 172.16) and (not dst host 192.168.1.200)))’  #抓取所有经过网卡1，目的网络是172.16，但目的主机不是192.168.1.200的TCP数据 

tcpdump -i eth1 host 172.16.7.206 and port 80 -w /tmp/xxx.cap  #抓取所有经过网卡1，目的主机为172.16.7.206的端口80的网络数据并