{"id":159,"date":"2013-05-30T20:48:14","date_gmt":"2013-05-30T12:48:14","guid":{"rendered":"http:\/\/coderbee.net\/?p=159"},"modified":"2013-05-30T14:51:25","modified_gmt":"2013-05-30T06:51:25","slug":"netstat","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/linux\/20130530\/159","title":{"rendered":"netstat"},"content":{"rendered":"

netstat<\/h2>\n

\u7528\u4e8e\u8f93\u51fa\u7f51\u7edc\u8fde\u63a5\uff0c\u8def\u7531\u8868\uff0c\u63a5\u53e3\u7edf\u8ba1\uff0c\u4f2a\u8fde\u63a5\u548c\u5e7f\u64ad\u5173\u7cfb \u7684\u4fe1\u606f\u3002<\/p>\n

\u4f7f\u7528\u65b9\u5f0f<\/h3>\n
\n       netstat  [address_family_options]  [--tcp|-t]   [--udp|-u]   [--raw|-w]\n       [--listening|-l]     [--all|-a]     [--numeric|-n]    [--numeric-hosts]\n       [--numeric-ports]           [--numeric-users]           [--symbolic|-N]\n       [--extend|-e[--extend|-e]]  [--timers|-o] [--program|-p] [--verbose|-v]\n       [--continuous|-c]\n\n       netstat              {--route|-r}              [address_family_options]\n       [--extend|-e[--extend|-e]]         [--verbose|-v]        [--numeric|-n]\n       [--numeric-hosts] [--numeric-ports] [--numeric-users] [--continuous|-c]\n\n       netstat {--interfaces|-i} [--all|-a] [--extend|-e[--extend|-e]] [--ver-\n       bose|-v]  [--program|-p]  [--numeric|-n]  [--numeric-hosts] [--numeric-\n       ports] [--numeric-users] [--continuous|-c]\n\n       netstat      {--groups|-g}       [--numeric|-n]       [--numeric-hosts]\n       [--numeric-ports] [--numeric-users] [--continuous|-c]\n\n       netstat       {--masquerade|-M}       [--extend|-e]      [--numeric|-n]\n       [--numeric-hosts] [--numeric-ports] [--numeric-users] [--continuous|-c]\n\n       netstat {--statistics|-s} [--tcp|-t] [--udp|-u] [--raw|-w]\n\n       netstat {--version|-V}\n\n       netstat {--help|-h}\n\n      address_family_options:\n      [-4]      [-6]       [--protocol={inet,unix,ipx,ax25,netrom,ddp}[,...]]\n      [--unix|-x] [--inet|--ip] [--ax25] [--ipx] [--netrom] [--ddp]\n\n<\/code><\/pre>\n
<\/p>\n
\u8bf4\u660e<\/h3>\n
netstat\u6253\u5370\u5173\u4e8elinux\u7f51\u7edc\u7cfb\u7edf\u7684\u4fe1\u606f\uff0c\u8fd9\u7c7b\u4fe1\u606f\u7684\u8f93\u51fa\u662f\u7531\u7b2c\u4e00\u4e2a\u53c2\u6570\u63a7\u5236\u7684\uff0c\u5982\u4e0b\uff1a<\/p>\n
    \n
  • (none)<\/code>\uff1a\u7a7a\uff0cnetstat\u9ed8\u8ba4\u8f93\u51fa\u6253\u5f00\u7684\u5957\u63a5\u5b57\u5217\u8868\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u4efb\u4f55\u5730\u5740\u65cf\uff08address families\uff09\uff0c\u5df2\u914d\u7f6e\u7684\u6240\u6709\u5730\u5740\u65cf\u7684\u6d3b\u52a8\u5957\u63a5\u5b57\u5c06\u88ab\u8f93\u51fa\u3002<\/p>\n<\/li>\n
  • \n
    -r,  --route<\/code>\uff1a\u663e\u793a\u5185\u6838\u8def\u7531\u8868\u3002<\/p>\n<\/li>\n
  • \n
    -g,  --groups<\/code>\uff1a\u4e3aIPv4\u548cIPv6 \u663e\u793a\u5e7f\u64ad\u7ec4\u6210\u5458\u5173\u7cfb\u3002<\/p>\n<\/li>\n
  • \n
    -i,  --interface<\/code>\uff1a\u663e\u793a\u6240\u6709\u7684\u7f51\u7edc\u63a5\u53e3\u3002<\/p>\n<\/li>\n
  • \n
    -M,  --masquerade<\/code>\uff1a\u663e\u793a\u865a\u62df\u8fde\u63a5\u5217\u8868\u3002<\/p>\n<\/li>\n
  • \n
    -s,  --statistics<\/code>\uff1a\u4e3a\u6bcf\u4e2a\u534f\u8bae\u663e\u793a\u7b80\u6613\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/p>\n<\/li>\n<\/ul>\n
    \u9009\u9879<\/h3>\n
      \n
    • -v,  --verbose<\/code>\uff1a\u544a\u8bc9\u7528\u6237\u51c6\u5907\u8f93\u51fa\u5197\u957f\u4fe1\u606f\uff0c\u5728\u8f93\u51fa\u5173\u4e8e\u672a\u914d\u7f6e\u5730\u5740\u65cf\u7684\u4fe1\u606f\u65f6\u6709\u7528\u3002<\/li>\n
    • -W,  --wide<\/code>\uff1a\u4e0d\u901a\u8fc7\u4f7f\u7528\u8f93\u51fa\u901a\u914d\u7b26\u6765\u622a\u65adIP\u5730\u5740\u3002\u8fd9\u4e2a\u9009\u9879\u7528\u4e8e\u4e0d\u7834\u574f\u73b0\u6709\u7684\u811a\u672c\u3002<\/li>\n
    • -n,  --numeric<\/code>\uff1a\u663e\u793a\u6570\u5b57\u5730\u5740\u800c\u4e0d\u662f\u5c1d\u8bd5\u786e\u5b9a\u7b26\u53f7\u4e3b\u673a\u3001\u7aef\u53e3\u6216\u7528\u6237\u540d\u3002<\/li>\n
    • --numeric-hosts<\/code>\uff1a\u663e\u793a\u6570\u5b57\u4e3b\u673a\u5730\u5740\uff0c\u4f46\u4e0d\u5f71\u54cd\u89e3\u51b3\u7aef\u53e3\u6216\u7528\u6237\u540d\u3002<\/li>\n
    • --numeric-ports<\/code>\uff1a\u663e\u793a\u6570\u5b57\u7aef\u53e3\u53f7\uff0c\u4f46\u4e0d\u5f71\u54cd\u89e3\u51b3\u4e3b\u673a\u6216\u7528\u6237\u540d\u3002<\/li>\n
    • --numeric-users<\/code>\uff1a\u663e\u793a\u6570\u5b57\u7684\u7528\u6237ID\uff0c\u4f46\u4e0d\u5f71\u54cd\u89e3\u51b3\u4e3b\u673a\u6216\u7aef\u53e3\u540d\u3002<\/li>\n
    • -A,  --protocol=family<\/code>\uff1a\u4e3a\u8fde\u63a5\u6307\u5b9a\u5730\u5740\u65cf\uff08\u53ef\u80fd\u63cf\u8ff0\u4e3a\u5e95\u5c42\u534f\u8bae\u66f4\u597d\uff09\u3002\u65cf\u662f\u7528\u9017\u53f7\u5206\u9694\u7684\u5730\u5740\u65cf\u5173\u952e\u5b57\u5217\u8868\uff0c\u5982 inet, unix, ipx, ax25, netrom,  ddp\u3002\u5730\u5740\u65cfinet\u5305\u62ec raw, udp,  tcp\u534f\u8bae\u5957\u63a5\u5b57\u3002<\/li>\n
    • -c,  --continuous<\/code>\uff1a\u6bcf\u96941\u79d2\u8f93\u51fa\u9009\u5b9a\u7684\u4fe1\u606f\u3002<\/li>\n
    • -e,  --extend<\/code>\uff1a\u663e\u793a\u989d\u5916\u4fe1\u606f\u3002\u4f7f\u7528\u8fd9\u4e2a\u9009\u9879\u7528\u4e8e\u6700\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n
    • -o,  --timers<\/code>\uff1a\u8f93\u51fa\u4e00\u5217\u4fe1\u606f\u5305\u542b\u5173\u8054\u7684\u7f51\u7edc\u8ba1\u65f6\u5668\u3002<\/li>\n
    • -p,  --program<\/code>\uff1a\u663e\u793a\u6bcf\u4e2a\u5957\u63a5\u5b57\u6240\u5c5e\u7684PID\u548c\u7a0b\u5e8f\u540d\u3002<\/li>\n
    • -l,  --listening<\/code>\uff1a\u53ea\u663e\u793a\u6b63\u5728\u76d1\u542c\u7684\u5957\u63a5\u5b57\u3002\uff08\u8fd9\u4e9b\u9ed8\u8ba4\u662f\u5ffd\u7565\u7684\uff09<\/li>\n
    • -a,  --all<\/code>\uff1a\u663e\u793a\u6b63\u5728\u76d1\u542c\u548c\u975e\u76d1\u542c\u5957\u63a5\u5b57\u3002\u4e0e--interface<\/code>\u9009\u9879\u4e00\u8d77\uff0c\u663e\u793a\u672a\u542f\u7528\u7684\u63a5\u53e3interface\u3002<\/li>\n
    • \n
      -C<\/code>\uff1a\u4ece\u8def\u7531\u7f13\u5b58\u6253\u5370\u8def\u7531\u4fe1\u606f\u3002<\/p>\n<\/li>\n
    • \n
      -t,  --tcp<\/code>\uff1a<\/p>\n<\/li>\n
    • -u,  --udp<\/code>\uff1a<\/li>\n<\/ul>\n
      \u4e3e\u4f8b<\/h3>\n
      \u67e5\u770b\u5df2\u5efa\u7acb\u7684tcp\u5957\u63a5\u5b57\u6570\u91cf\uff1anetstat  -t | grep  -c  ESTABLISHED<\/code><\/p>\n
      \u67e5\u770b\u5df2\u5efa\u7acb\u7684tcp\u5957\u63a5\u5b57\u6570\u91cf\u3001\u53ea\u9650\u4e8eIPv4\u7684\uff1anetstat  -t4 | grep  -c  ESTABLISHED<\/code><\/p>\n
      \u663e\u793a\u975e\u76d1\u542c\u72b6\u6001\u7684TCP\u5957\u63a5\u5b57\uff1anetstat -t<\/code><\/p>\n
      \ncoderbee@coderbee:~$ netstat -t\nActive Internet connections (w\/o servers)\nProto Recv-Q Send-Q Local Address           Foreign Address         State\ntcp        0      0 coderbee.net:ssh        111.148.4.64:14121      ESTABLISHED\ntcp        0      0 coderbee.net:ssh        111.148.4.64:13457      ESTABLISHED\n<\/code><\/pre>\n
      \u663e\u793a\u975e\u76d1\u542c\u72b6\u6001\u7684TCP\u5957\u63a5\u5b57\uff0c\u4e14\u7528\u6570\u5b57\u5f62\u5f0f\u663e\u793a\u5730\u5740\u3001\u7aef\u53e3\u53f7\u3001\u7528\u6237\u540d\uff08\u4e0e\u4e0a\u9762\u5bf9\u6bd4\u5dee\u5f02\uff09\uff1anetstat -tn<\/code><\/p>\n
      \ncoderbee@coderbee:~$ netstat -tn\nActive Internet connections (w\/o servers)\nProto Recv-Q Send-Q Local Address           Foreign Address         State\ntcp        0      0 198.56.238.193:22       111.148.4.64:14121      ESTABLISHED\ntcp        0      0 198.56.238.193:22       111.148.4.64:13457      ESTABLISHED\n<\/code><\/pre>\n
      \u663e\u793a\u6b63\u5728\u76d1\u542c\u7684tcp\u5957\u63a5\u5b57\uff1anetstat  -lt<\/code><\/p>\n
      \ncoderbee@coderbee:~$ netstat -lt\nActive Internet connections (only servers)\nProto Recv-Q Send-Q Local Address           Foreign Address         State\ntcp        0      0 *:http                  *:*                     LISTEN\ntcp        0      0 *:ssh                   *:*                     LISTEN\ntcp        0      0 localhost.localdom:9000 *:*                     LISTEN\ntcp6       0      0 [::]:mysql              [::]:*                  LISTEN\ntcp6       0      0 [::]:ssh                [::]:*                  LISTEN\n<\/code><\/pre>\n
      \u663e\u793a\u5185\u6838\u8def\u7531\u8868\uff1anetstat  -r<\/code><\/p>\n
      \ncoderbee@coderbee:~$ netstat -r\nKernel IP routing table\nDestination     Gateway         Genmask         Flags   MSS Window  irtt Iface\ndefault         *               0.0.0.0         U         0 0          0 venet0\n<\/code><\/pre>\n
      \u663e\u793a\u5185\u6838\u8def\u7531\u7f13\u5b58\uff1anetstat  -rC<\/code><\/p>\n
      \ncoderbee@coderbee:~$ netstat -rC\nKernel IP routing cache\nSource          Destination     Gateway         Flags   MSS Window  irtt Iface\n111.148.4.64    coderbee.net    coderbee.net    il        0 0          0 lo\ncoderbee.net    111.148.4.64    111.148.4.64           1500 0          0 venet0\n111.148.4.64    coderbee.net    coderbee.net    il        0 0          0 lo\ncoderbee.net    111.148.4.64    111.148.4.64           1500 0          0 venet0\ngoogle-public-d coderbee.net    coderbee.net    il        0 0          0 lo\n<\/code><\/pre>\n
      \u663e\u793a\u7f51\u7edc\u63a5\u53e3\u7684\u8be6\u7ec6\u4fe1\u606f\uff1anetstat  -iee<\/code>\uff0c\u4e0e ifconfig<\/code>\u4e00\u6837\uff0c\u53ea\u662f\u591a\u4e86\u7b2c\u4e00\u884c\u4fe1\u606f\u3002<\/p>\n
      \ncoderbee@coderbee:~$ netstat -iee\nKernel Interface table\nlo        Link encap:Local Loopback\n          inet addr:127.0.0.1  Mask:255.0.0.0\n          inet6 addr: ::1\/128 Scope:Host\n          UP LOOPBACK RUNNING  MTU:16436  Metric:1\n          RX packets:15789 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:15789 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:0\n          RX bytes:30822088 (30.8 MB)  TX bytes:30822088 (30.8 MB)\n\nvenet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00\n          inet addr:127.0.0.2  P-t-P:127.0.0.2  Bcast:0.0.0.0  Mask:255.255.255.255\n          inet6 addr: 2605:f700:40:c00::ec9e:a1f2\/128 Scope:Global\n          inet6 addr: 2605:f700:40:c00::5fe6:6fd1\/128 Scope:Global\n          inet6 addr: 2605:f700:40:c00::873e:da1c\/128 Scope:Global\n          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1\n          RX packets:73616 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:80606 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:0\n          RX bytes:8382980 (8.3 MB)  TX bytes:25734514 (25.7 MB)\n\nvenet0:0  Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00\n          inet addr:198.56.238.193  P-t-P:198.56.238.193  Bcast:0.0.0.0  Mask:255.255.255.255\n          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1\n<\/code><\/pre>\n\n
      \u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n
      <\/p>\n","protected":false},"excerpt":{"rendered":"
      netstat \u7528\u4e8e\u8f93\u51fa\u7f51\u7edc\u8fde\u63a5\uff0c\u8def\u7531\u8868\uff0c\u63a5\u53e3\u7edf\u8ba1\uff0c\u4f2a\u8fde\u63a5\u548c\u5e7f\u64ad\u5173\u7cfb \u7684\u4fe1\u606f\u3002  … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[29,51],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/159"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=159"}],"version-history":[{"count":2,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/159\/revisions"}],"predecessor-version":[{"id":161,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/159\/revisions\/161"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}