TcpDump\u53ef\u4ee5\u5c06\u7f51\u7edc\u4e2d\u4f20\u9001\u7684\u6570\u636e\u5305\u7684\u201c\u5934\u201d\u5b8c\u5168\u622a\u83b7\u4e0b\u6765\u63d0\u4f9b\u5206\u6790\u3002\u5b83\u652f\u6301\u9488\u5bf9\u7f51\u7edc\u5c42\u3001\u534f\u8bae\u3001\u4e3b\u673a\u3001\u7f51\u7edc\u6216\u7aef\u53e3\u7684\u8fc7\u6ee4\uff0c\u5e76\u63d0\u4f9band\u3001or\u3001not\u7b49\u903b\u8f91\u8bed\u53e5\u6765\u5e2e\u52a9\u4f60\u53bb\u6389\u65e0\u7528\u7684\u4fe1\u606f\u3002<\/p>\n
\u548cLinux\u7ec8\u7aef\u72b6\u6001\u4e0b\u7684\u5176\u4ed6\u8f6f\u4ef6\u4e00\u6837\uff0cTcpDump\u4e5f\u662f\u4f9d\u9760\u53c2\u6570\u6765\u5de5\u4f5c\uff0c\u672c\u6587\u5c06\u7ed3\u5408\u5b9e\u4f8b\u6765\u8bf4\u660e\u3002<\/p>\n
\u6570\u636e\u8fc7\u6ee4
\n\u4e0d\u5e26\u4efb\u4f55\u53c2\u6570\u7684TcpDump\u5c06\u641c\u7d22\u7cfb\u7edf\u4e2d\u6240\u6709\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u5e76\u663e\u793a\u5b83\u622a\u83b7\u7684\u6240\u6709\u6570\u636e\uff0c\u8fd9\u4e9b\u6570\u636e\u5bf9\u6211\u4eec\u4e0d\u4e00\u5b9a\u5168\u90fd\u9700\u8981\uff0c\u800c\u4e14\u6570\u636e\u592a\u591a\u4e0d\u5229\u4e8e\u5206\u6790\u3002\u6240\u4ee5\uff0c\u6211\u4eec\u5e94\u5f53\u5148\u60f3\u597d\u9700\u8981\u54ea\u4e9b\u6570\u636e\uff0cTcpDump\u63d0\u4f9b\u4ee5\u4e0b\u53c2\u6570\u4f9b\u6211\u4eec\u9009\u62e9\u6570\u636e\uff1a<\/p>\n
-b \u5728\u6570\u636e-\u94fe\u8def\u5c42\u4e0a\u9009\u62e9\u534f\u8bae\uff0c\u5305\u62ecip\u3001arp\u3001rarp\u3001ipx\u90fd\u662f\u8fd9\u4e00\u5c42\u7684\u3002<\/p>\n
\u4f8b\u5982\uff1atcpdump -b arp \u5c06\u53ea\u663e\u793a\u7f51\u7edc\u4e2d\u7684arp\u5373\u5730\u5740\u8f6c\u6362\u534f\u8bae\u4fe1\u606f\u3002<\/p>\n
-i \u9009\u62e9\u8fc7\u6ee4\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u5982\u679c\u662f\u4f5c\u4e3a\u8def\u7531\u5668\u81f3\u5c11\u6709\u4e24\u4e2a\u7f51\u7edc\u63a5\u53e3\uff0c\u901a\u8fc7\u8fd9\u4e2a\u9009\u9879\uff0c\u5c31\u53ef\u4ee5\u53ea\u8fc7\u6ee4\u6307\u5b9a\u7684\u63a5\u53e3\u4e0a\u901a\u8fc7\u7684\u6570\u636e\u3002\u4f8b\u5982\uff1a<\/p>\n
tcpdump -i eth0 \u53ea\u663e\u793a\u901a\u8fc7eth0\u63a5\u53e3\u4e0a\u7684\u6240\u6709\u62a5\u5934\u3002<\/p>\n
src\u3001dst\u3001port\u3001host\u3001net\u3001ether\u3001gateway\u8fd9\u51e0\u4e2a\u9009\u9879\u53c8\u5206\u522b\u5305\u542bsrc\u3001dst \u3001port\u3001host\u3001net\u3001ehost\u7b49\u9644\u52a0\u9009\u9879\u3002\u4ed6\u4eec\u7528\u6765\u5206\u8fa8\u6570\u636e\u5305\u7684\u6765\u6e90\u548c\u53bb\u5411\uff0csrc host 192.168.0.1\u6307\u5b9a\u6e90\u4e3b\u673aIP\u5730\u5740\u662f192.168.0.1\uff0cdst net 192.168.0.0\/24\u6307\u5b9a\u76ee\u6807\u662f\u7f51\u7edc192.168.0.0\u3002\u4ee5\u6b64\u7c7b\u63a8\uff0chost\u662f\u4e0e\u5176\u6307\u5b9a\u4e3b\u673a\u76f8\u5173\u65e0\u8bba\u5b83\u662f\u6e90\u8fd8\u662f\u76ee\u7684\uff0cnet\u662f\u4e0e\u5176\u6307\u5b9a\u7f51\u7edc\u76f8\u5173\u7684\uff0cether\u540e\u9762\u8ddf\u7684\u4e0d\u662fIP\u5730\u5740\u800c\u662f\u7269\u7406\u5730\u5740\uff0c\u800cgateway\u5219\u7528\u4e8e\u7f51\u5173\u4e3b\u673a\u3002\u53ef\u80fd\u6709\u70b9\u590d\u6742\uff0c\u770b\u4e0b\u9762\u4f8b\u5b50\u5c31\u77e5\u9053\u4e86\uff1a<\/p>\n
tcpdump src host 192.168.0.1 and dst net 192.168.0.0\/24<\/p>\n
\u8fc7\u6ee4\u7684\u662f\u6e90\u4e3b\u673a\u4e3a192.168.0.1\u4e0e\u76ee\u7684\u7f51\u7edc\u4e3a192.168.0.0\u7684\u62a5\u5934\u3002<\/p>\n
tcpdump ether src 00:50:04:BA:9B and dst\u2026\u2026<\/p>\n
\u8fc7\u6ee4\u6e90\u4e3b\u673a\u7269\u7406\u5730\u5740\u4e3aXXX\u7684\u62a5\u5934\uff08\u4e3a\u4ec0\u4e48ether src\u540e\u9762\u6ca1\u6709host\u6216\u8005net\uff1f\u7269\u7406\u5730\u5740\u5f53\u7136\u4e0d\u53ef\u80fd\u6709\u7f51\u7edc\u55bd\uff09\u3002<\/p>\n
Tcpdump src host 192.168.0.1 and dst port not telnet<\/p>\n
\u8fc7\u6ee4\u6e90\u4e3b\u673a192.168.0.1\u548c\u76ee\u7684\u7aef\u53e3\u4e0d\u662ftelnet\u7684\u62a5\u5934\u3002<\/p>\n
ip icmp arp rarp \u548c tcp\u3001udp\u3001icmp\u8fd9\u4e9b\u9009\u9879\u7b49\u90fd\u8981\u653e\u5230\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u4f4d\u7f6e\uff0c\u7528\u6765\u8fc7\u6ee4\u6570\u636e\u62a5\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff1a<\/p>\n
tcpdump ip src\u2026\u2026<\/p>\n
\u53ea\u8fc7\u6ee4\u6570\u636e-\u94fe\u8def\u5c42\u4e0a\u7684IP\u62a5\u5934\u3002<\/p>\n
tcpdump udp and src host 192.168.0.1<\/p>\n
\u53ea\u8fc7\u6ee4\u6e90\u4e3b\u673a192.168.0.1\u7684\u6240\u6709udp\u62a5\u5934\u3002<\/p>\n
\u6570\u636e\u663e\u793a\/\u8f93\u5165\u8f93\u51fa
\nTcpDump\u63d0\u4f9b\u4e86\u8db3\u591f\u7684\u53c2\u6570\u6765\u8ba9\u6211\u4eec\u9009\u62e9\u5982\u4f55\u5904\u7406\u5f97\u5230\u7684\u6570\u636e\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
-l \u53ef\u4ee5\u5c06\u6570\u636e\u91cd\u5b9a\u5411\u3002<\/p>\n
\u5982tcpdump -l \uff1etcpcap.txt\u5c06\u5f97\u5230\u7684\u6570\u636e\u5b58\u5165tcpcap.txt\u6587\u4ef6\u4e2d\u3002<\/p>\n
-n \u4e0d\u8fdb\u884cIP\u5730\u5740\u5230\u4e3b\u673a\u540d\u7684\u8f6c\u6362\u3002<\/p>\n
\u5982\u679c\u4e0d\u4f7f\u7528\u8fd9\u4e00\u9879\uff0c\u5f53\u7cfb\u7edf\u4e2d\u5b58\u5728\u67d0\u4e00\u4e3b\u673a\u7684\u4e3b\u673a\u540d\u65f6\uff0cTcpDump\u4f1a\u628aIP\u5730\u5740\u8f6c\u6362\u4e3a\u4e3b\u673a\u540d\u663e\u793a\uff0c\u5c31\u50cf\u8fd9\u6837\uff1aeth0 \uff1c ntc9.1165\uff1e router.domain.net.telnet\uff0c\u4f7f\u7528-n\u540e\u53d8\u6210\u4e86\uff1aeth0 \uff1c 192.168.0.9.1165 \uff1e 192.168.0.1.telnet\u3002<\/p>\n
-nn \u4e0d\u8fdb\u884c\u7aef\u53e3\u540d\u79f0\u7684\u8f6c\u6362\u3002<\/p>\n
\u4e0a\u9762\u8fd9\u6761\u4fe1\u606f\u4f7f\u7528-nn\u540e\u5c31\u53d8\u6210\u4e86\uff1aeth0 \uff1c ntc9.1165 \uff1e router.domain.net.23\u3002<\/p>\n
-N \u4e0d\u6253\u5370\u51fa\u9ed8\u8ba4\u7684\u57df\u540d\u3002<\/p>\n
\u8fd8\u662f\u8fd9\u6761\u4fe1\u606f-N \u540e\u5c31\u662f\uff1aeth0 \uff1c ntc9.1165 \uff1e router.telnet\u3002<\/p>\n
-O \u4e0d\u8fdb\u884c\u5339\u914d\u4ee3\u7801\u7684\u4f18\u5316\u3002
\n-t \u4e0d\u6253\u5370UNIX\u65f6\u95f4\u6233\uff0c\u4e5f\u5c31\u662f\u4e0d\u663e\u793a\u65f6\u95f4\u3002
\n-tt \u6253\u5370\u539f\u59cb\u7684\u3001\u672a\u683c\u5f0f\u5316\u8fc7\u7684\u65f6\u95f4\u3002
\n-v \u8be6\u7ec6\u7684\u8f93\u51fa\uff0c\u4e5f\u5c31\u6bd4\u666e\u901a\u7684\u591a\u4e86\u4e2aTTL\u548c\u670d\u52a1\u7c7b\u578b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
TcpDump\u53ef\u4ee5\u5c06\u7f51\u7edc\u4e2d\u4f20\u9001\u7684\u6570\u636e\u5305\u7684\u201c\u5934\u201d\u5b8c\u5168\u622a\u83b7\u4e0b\u6765\u63d0\u4f9b\u5206\u6790\u3002\u5b83\u652f\u6301\u9488\u5bf9\u7f51\u7edc\u5c42\u3001\u534f\u8bae\u3001\u4e3b\u673a\u3001\u7f51\u7edc\u6216\u7aef\u53e3\u7684\u8fc7\u6ee4\uff0c\u5e76\u63d0\u4f9band\u3001or\u3001not\u7b49\u903b\u8f91\u8bed\u53e5\u6765\u5e2e\u52a9\u4f60\u53bb\u6389\u65e0\u7528\u7684\u4fe1\u606f\u3002 \u548cLinux\u7ec8\u7aef\u72b6\u6001\u4e0b...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-335","post","type-post","status-publish","format-standard","hentry","category-linux-gnu"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=335"}],"version-history":[{"count":0,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/335\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}