{"id":1925,"date":"2017-09-01T15:30:06","date_gmt":"2017-09-01T07:30:06","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=1925"},"modified":"2017-09-01T15:30:06","modified_gmt":"2017-09-01T07:30:06","slug":"linux-netstat%e7%bd%91%e7%bb%9c%e7%8a%b6%e6%80%81%e5%91%bd%e4%bb%a4%e4%bd%bf%e7%94%a8%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=1925","title":{"rendered":"Linux Netstat(\u7f51\u7edc\u72b6\u6001)\u547d\u4ee4\u4f7f\u7528\u6559\u7a0b"},"content":{"rendered":"<p>\n\t\u5927\u90e8\u5206\u7a0b\u5e8f\u5458\u5bf9 Netstat \u547d\u4ee4\u5e76\u4e0d\u964c\u751f\uff0c\u6216\u591a\u6216\u5c11\u7684\u90fd\u4f7f\u7528\u8fc7\u5b83\u3002\u672c\u6587\u5c06\u5bf9\u5b83\u505a\u4e00\u4e2a\u6559\u7a0b\u8be6\u89e3\uff0c\u65e8\u5728\u8ba9netstat\u547d\u4ee4\u8be6\u89e3\u4e3a\u5927\u5bb6\u66f4\u6df1\u5165\u7684\u7406\u89e3\u5b83\u548c\u4f7f\u7528\u5b83\u3002\n<\/p>\n<p>\n\t<a href=\"https:\/\/baike.baidu.com\/item\/Netstat\" name=\"Netstat\" target=\"_blank\" title=\"Netstat\">Netstat<\/a>\u662f\u63a7\u5236\u53f0\u547d\u4ee4,\u662f\u4e00\u4e2a\u76d1\u63a7TCP\/IP\u7f51\u7edc\u7684\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u663e\u793a\u8def\u7531\u8868\u3001\u5b9e\u9645\u7684\u7f51\u7edc\u8fde\u63a5\u4ee5\u53ca\u6bcf\u4e00\u4e2a\u7f51\u7edc\u63a5\u53e3\u8bbe\u5907\u7684\u72b6\u6001\u4fe1\u606f\u3002Netstat\u7528\u4e8e\u663e\u793a\u4e0eIP\u3001TCP\u3001UDP\u548cICMP\u534f\u8bae\u76f8\u5173\u7684\u7edf\u8ba1\u6570\u636e\uff0c\u4e00\u822c\u7528\u4e8e\u68c0\u9a8c\u672c\u673a\u5404\u7aef\u53e3\u7684\u7f51\u7edc\u8fde\u63a5\u60c5\u51b5\u3002\n<\/p>\n<p>\n\t\u6267\u884cnetstat\u547d\u4ee4\u540e\u7ec8\u7aef\u4e00\u822c\u4f1a\u663e\u793a\u4e0b\u9762\u7684\u5185\u5bb9\uff1a\n<\/p>\n<pre class=\"brush:plain;\">\r\nActive Internet connections (w\/o servers)\r\nProto Recv-Q Send-Q Local Address Foreign Address State\r\ntcp 0 2 210.34.6.89:telnet 210.34.6.96:2873 ESTABLISHED\r\ntcp 296 0 210.34.6.89:1165 210.34.6.84:netbios-ssn ESTABLISHED\r\ntcp 0 0 localhost.localdom:9001 localhost.localdom:1162 ESTABLISHED\r\ntcp 0 0 localhost.localdom:1162 localhost.localdom:9001 ESTABLISHED\r\ntcp 0 80 210.34.6.89:1161 210.34.6.10:netbios-ssn CLOSE\r\n\r\nActive UNIX domain sockets (w\/o servers)\r\nProto RefCnt Flags Type State I-Node Path\r\nunix 1 [ ] STREAM CONNECTED 16178 @000000dd\r\nunix 1 [ ] STREAM CONNECTED 16176 @000000dc\r\nunix 9 [ ] DGRAM 5292 \/dev\/log\r\nunix 1 [ ] STREAM CONNECTED 16182 @000000df<\/pre>\n<p>\n\t\u4ece\u6574\u4f53\u4e0a\u770b\uff0cnetstat\u7684\u8f93\u51fa\u7ed3\u679c\u53ef\u4ee5\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206\uff1a<br \/>\n\t\u4e00\u4e2a\u662fActive Internet connections\uff0c\u79f0\u4e3a\u6709\u6e90TCP\u8fde\u63a5\uff0c\u5176\u4e2d&quot;Recv-Q&quot;\u548c&quot;Send-Q&quot;\u6307%0A\u7684\u662f\u63a5\u6536\u961f\u5217\u548c\u53d1\u9001\u961f\u5217\u3002\u8fd9\u4e9b\u6570\u5b57\u4e00\u822c\u90fd\u5e94\u8be5\u662f0\u3002\u5982\u679c\u4e0d\u662f\u5219\u8868\u793a\u8f6f\u4ef6\u5305\u6b63\u5728\u961f\u5217\u4e2d\u5806\u79ef\u3002\u8fd9\u79cd\u60c5\u51b5\u53ea\u80fd\u5728\u975e\u5e38\u5c11\u7684\u60c5\u51b5\u89c1\u5230\u3002<br \/>\n\t\u53e6\u4e00\u4e2a\u662fActive UNIX domain sockets\uff0c\u79f0\u4e3a\u6709\u6e90Unix\u57df\u5957\u63a5\u53e3(\u548c\u7f51\u7edc\u5957\u63a5\u5b57\u4e00\u6837\uff0c\u4f46\u662f\u53ea\u80fd\u7528\u4e8e\u672c\u673a\u901a\u4fe1\uff0c\u6027\u80fd\u53ef\u4ee5\u63d0\u9ad8\u4e00\u500d)\u3002<br \/>\n\tProto\u663e\u793a\u8fde\u63a5\u4f7f\u7528\u7684\u534f\u8bae,RefCnt\u8868\u793a\u8fde\u63a5\u5230\u672c\u5957\u63a5\u53e3\u4e0a\u7684\u8fdb\u7a0b\u53f7,Types\u663e\u793a\u5957\u63a5\u53e3\u7684\u7c7b\u578b,State\u663e\u793a\u5957\u63a5\u53e3\u5f53\u524d\u7684\u72b6\u6001,Path\u8868\u793a\u8fde\u63a5\u5230\u5957\u63a5\u53e3\u7684\u5176\u5b83\u8fdb\u7a0b\u4f7f\u7528\u7684\u8def\u5f84\u540d\u3002\n<\/p>\n<h2>\n\tNetstat \u53c2\u6570<br \/>\n<\/h2>\n<ul>\n<li>\n\t\t-a (all)\u663e\u793a\u6240\u6709\u9009\u9879\uff0c\u9ed8\u8ba4\u4e0d\u663e\u793aLISTEN\u76f8\u5173\n\t<\/li>\n<li>\n\t\t-t (tcp)\u4ec5\u663e\u793atcp\u76f8\u5173\u9009\u9879\n\t<\/li>\n<li>\n\t\t-u (udp)\u4ec5\u663e\u793audp\u76f8\u5173\u9009\u9879\n\t<\/li>\n<li>\n\t\t-n \u62d2\u7edd\u663e\u793a\u522b\u540d\uff0c\u80fd\u663e\u793a\u6570\u5b57\u7684\u5168\u90e8\u8f6c\u5316\u6210\u6570\u5b57\u3002\n\t<\/li>\n<li>\n\t\t-l \u4ec5\u5217\u51fa\u6709\u5728 Listen (\u76d1\u542c) \u7684\u670d\u52d9\u72b6\u6001\n\t<\/li>\n<li>\n\t\t-p \u663e\u793a\u5efa\u7acb\u76f8\u5173\u94fe\u63a5\u7684\u7a0b\u5e8f\u540d\n\t<\/li>\n<li>\n\t\t-r \u663e\u793a\u8def\u7531\u4fe1\u606f\uff0c\u8def\u7531\u8868\n\t<\/li>\n<li>\n\t\t-e \u663e\u793a\u6269\u5c55\u4fe1\u606f\uff0c\u4f8b\u5982uid\u7b49\n\t<\/li>\n<li>\n\t\t-s \u6309\u5404\u4e2a\u534f\u8bae\u8fdb\u884c\u7edf\u8ba1\n\t<\/li>\n<li>\n\t\t-c \u6bcf\u9694\u4e00\u4e2a\u56fa\u5b9a\u65f6\u95f4\uff0c\u6267\u884c\u8be5netstat\u547d\u4ee4\u3002\n\t<\/li>\n<\/ul>\n<p>\n\tLISTEN\u548cLISTENING\u7684\u72b6\u6001\u53ea\u6709\u7528-a\u6216\u8005-l\u624d\u80fd\u770b\u5230\u3002\n<\/p>\n<h2>\n\t\u4f7f\u7528\u4e3e\u4f8b<br \/>\n<\/h2>\n<ul>\n<li>\n\t\t\u5217\u51fa\u6240\u6709\u7aef\u53e3 netstat -a\n\t<\/li>\n<li>\n\t\t\u5217\u51fa\u6240\u6709 tcp \u7aef\u53e3 netstat -at\n\t<\/li>\n<li>\n\t\t\u5217\u51fa\u6240\u6709 udp \u7aef\u53e3 netstat -au\n\t<\/li>\n<li>\n\t\t\u53ea\u663e\u793a\u76d1\u542c\u7aef\u53e3 netstat -l\n\t<\/li>\n<li>\n\t\t\u53ea\u5217\u51fa\u6240\u6709\u76d1\u542c tcp \u7aef\u53e3 netstat -lt\n\t<\/li>\n<li>\n\t\t\u53ea\u5217\u51fa\u6240\u6709\u76d1\u542c udp \u7aef\u53e3 netstat -lu\n\t<\/li>\n<li>\n\t\t\u53ea\u5217\u51fa\u6240\u6709\u76d1\u542c UNIX \u7aef\u53e3 netstat -lx\n\t<\/li>\n<li>\n\t\t\u663e\u793a\u6240\u6709\u7aef\u53e3\u7684\u7edf\u8ba1\u4fe1\u606f netstat -s\n\t<\/li>\n<li>\n\t\t\u663e\u793a TCP \u6216 UDP \u7aef\u53e3\u7684\u7edf\u8ba1\u4fe1\u606f netstat -st \u6216 -su\n\t<\/li>\n<li>\n\t\t\u5728 netstat \u8f93\u51fa\u4e2d\u663e\u793a PID \u548c\u8fdb\u7a0b\u540d\u79f0 netstat -p\n\t<\/li>\n<li>\n\t\tnetstat -p \u53ef\u4ee5\u4e0e\u5176\u5b83\u5f00\u5173\u4e00\u8d77\u4f7f\u7528\uff0c\u5c31\u53ef\u4ee5\u6dfb\u52a0 &ldquo;PID\/\u8fdb\u7a0b\u540d\u79f0&rdquo; \u5230 netstat \u8f93\u51fa\u4e2d\uff0c\u8fd9\u6837 debugging \u7684\u65f6\u5019\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u53d1\u73b0\u7279\u5b9a\u7aef\u53e3\u8fd0\u884c\u7684\u7a0b\u5e8f\u3002\n\t<\/li>\n<li>\n\t\tnetstat -n\u4e0d\u663e\u793a\u4e3b\u673a\uff0c\u7aef\u53e3\u548c\u7528\u6237\u540d\n\t<\/li>\n<li>\n\t\tnetstat -an\u52a0\u901f\u8f93\u51fa\n\t<\/li>\n<li>\n\t\tnetsat -a &#8211;numeric-ports\u4e0d\u663e\u793a\u7aef\u53e3\n\t<\/li>\n<li>\n\t\tnetsat -a &#8211;numeric-hosts\u4e0d\u663e\u793a\u4e3b\u673a\n\t<\/li>\n<li>\n\t\tnetsat -a &#8211;numeric-users\u4e0d\u663e\u793a\u7528\u6237\u540d\n\t<\/li>\n<li>\n\t\tnetstat -c\u8be5\u547d\u4ee4\u4f1a\u4f7fnetstat \u5c06\u6bcf\u9694\u4e00\u79d2\u8f93\u51fa\u7f51\u7edc\u4fe1\u606f\u3002\n\t<\/li>\n<li>\n\t\tnetstat &#8211;verbose\u663e\u793a\u7cfb\u7edf\u4e0d\u652f\u6301\u7684\u5730\u5740\u65cf\n\t<\/li>\n<li>\n\t\tnetstat -r\u663e\u793a\u6838\u5fc3\u8def\u7531\u4fe1\u606f\n\t<\/li>\n<li>\n\t\tnetstat -rn \u663e\u793a\u6570\u5b57\u683c\u5f0f\uff0c\u4e0d\u67e5\u8be2\u4e3b\u673a\u540d\u79f0\u3002\n\t<\/li>\n<li>\n\t\tnetstat -ap | grep ssh\u627e\u51fa\u7a0b\u5e8f\u8fd0\u884c\u7684\u7aef\u53e3\u3002\u5e76\u4e0d\u662f\u6240\u6709\u7684\u8fdb\u7a0b\u90fd\u80fd\u627e\u5230\uff0c\u6ca1\u6709\u6743\u9650\u7684\u4f1a\u4e0d\u663e\u793a\uff0c\u4f7f\u7528 root \u6743\u9650\u67e5\u770b\u6240\u6709\u7684\u4fe1\u606f\u3002\n\t<\/li>\n<li>\n\t\tnetstat -i\u663e\u793a\u7f51\u7edc\u63a5\u53e3\u5217\u8868\n\t<\/li>\n<li>\n\t\tnetstat -ie\u793a\u7f51\u7edc\u63a5\u53e3\u5217\u8868\u8be6\u7ec6\u4fe1\u606f\n\t<\/li>\n<\/ul>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=1925\">Linux Netstat(\u7f51\u7edc\u72b6\u6001)\u547d\u4ee4\u4f7f\u7528\u6559\u7a0b<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u5927\u90e8\u5206\u7a0b\u5e8f\u5458\u5bf9 Netstat \u547d\u4ee4\u5e76\u4e0d\u964c\u751f\uff0c\u6216\u591a\u6216\u5c11\u7684\u90fd\u4f7f\u7528\u8fc7\u5b83\u3002\u672c\u6587\u5c06\u5bf9\u5b83\u505a\u4e00\u4e2a\u6559\u7a0b\u8be6\u89e3\uff0c\u65e8\u5728\u8ba9netst [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118],"tags":[706,1478],"class_list":["post-1925","post","type-post","status-publish","format-standard","hentry","category-ndisdevelop","tag-linux","tag-netstat"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1925","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1925"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1925\/revisions"}],"predecessor-version":[{"id":1926,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1925\/revisions\/1926"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}