Show Traffic Related to a Specific Port 代码语言:txt AI代码解释 tcpdump port 3389 代码语言:txt AI代码解释 tcpdump src port 1025 Show Traffic of One Protocol 代码语言:txt AI代码解释 tcpdump icmp Show only IP6 Traffic 代码语言:txt AI代码解释 tcpdump ip6 Find Traffic Using Port Ranges 代码...
tcpdump port 80 -w capture_file tcpdump -r capture_file Capture ICMP Packets With Tcpdump It’s All About the Combinations Raw Output View tcpdump -ttnnvvS Here are some examples of combined commands. From specific IP and destined for a specific Port tcpdump -nnvvS src 10.5.2.3 and ...
From specific IP and destined for a specific Port tcpdump -nnvvSsrc10.5.2.3and dst port3389 From One Network to Another tcpdump -nvX srcnet192.168.0.0/16and dstnet10.0.0.0/8or172.16.0.0/16 Non ICMP Traffic Going to a Specific IP tcpdumpdst192.168.0.2andsrc netandnot icmp Traffic From a...
&pt->dev->ptype_specific : &ptype_base[ntohs(pt->type) & PTYPE_HASH_MASK];///否则,挂在ptype_base[type&15]上面 } 综上:tcpdump在刚开始工作时创建了PF_PACKET套接字,并在全局的ptype_all中挂载了该套接字的pt(packet_type *pt),其中pt的字段func设置了相应的回调函数packet_rcv(后面将分...
strace tcpdump tcp port80 可以看到tcpdump抓包创建的的套接字类型AF_PACKET 在libpcap库源码中也可以看到有调用socket系统调用: tatic intpcap_can_set_rfmon_linux(pcap_t*handle){...sock_fd=socket(PF_PACKET,SOCK_RAW,htons(ETH_P_ALL));if(sock_fd==-1){(void)snprintf(handle->errbuf,PCAP_ERRBUF...
tcpdump port 80 -w capture_file tcpdump -r capture_file It’s All About the Combinations Raw Output View tcpdump -ttnnvvS Here are some examples of combined commands. From specific IP and destined for a specific Port tcpdump -nnvvS src 10.5.2.3 and dst port 3389 ...
Please mind that although code compilation is always DLT-specific, typically it is impossible (and unnecessary) to specify which DLT to use for the dump because tcpdump uses either the DLT of the input pcap file specified with -r, or the default DLT of the network interface specified with ...
~ # tcpdump -A -i eth0 ~ # tcpdump -A -i eth0 'port 80' More Packet DataSpecific length, or zero to get entire packet~ # tcpdump -s 256 -i eth0 ~ # tcpdump -s 0 -i eth0 ~ # tcpdump -A -s 0 -i eth0 'port 80' ...
Limit capture to only packets related to a specific host by using thehostfilter: $sudotcpdump-iany-c5-nnhost54.204.39.132tcpdump:verboseoutputsuppressed,use-vor-vvforfullprotocoldecodelisteningonany,link-typeLINUX_SLL(Linuxcooked),capturesize262144bytes09:54:20.042023IP192.168.122.98.39326>54.204.39....
2)、lsof -i:port 可以检测到打开套接字的状况 3)、 sar -n SOCK 查看tcp创建的连接数 4)、tcpdump -iany tcp port 9000 对tcp端口为9000的进行抓包 LISTENING:侦听来自远方的TCP端口的连接请求. socket进行监听,状态为LISTEN。 有提供某种服务才会处于LISTENING状态,TCP状态变化就是某个端口的状态变化,提供一...