Windows 下查看端口被那个程序占用

对于服务器，起码开放了那些端口自己要清楚，如果知道了某个端口开放了，但是不知道是那个程序打开的，可使用netstat -anb命令：

Active Connections

  Proto  Local Address          Foreign Address        State           PID
  TCP    0.0.0.0:21             0.0.0.0:0              LISTENING       1304
  [inetinfo.exe]

  TCP    0.0.0.0:80             0.0.0.0:0              LISTENING       1120
  [Apache.exe]

  TCP    0.0.0.0:135            0.0.0.0:0              LISTENING       692
  RpcSs
  [svchost.exe]

  TCP    0.0.0.0:445            0.0.0.0:0              LISTENING       4
  [System]

  TCP    0.0.0.0:1025           0.0.0.0:0              LISTENING       432
  [lsass.exe]

  TCP    0.0.0.0:1026           0.0.0.0:0              LISTENING       1304
  [inetinfo.exe]

  TCP    0.0.0.0:1433           0.0.0.0:0              LISTENING       2536
  [sqlservr.exe]

  TCP    0.0.0.0:2383           0.0.0.0:0              LISTENING       2604
  [msmdsrv.exe]

  TCP    0.0.0.0:3306           0.0.0.0:0              LISTENING       2624
  [mysqld.exe]

  TCP    0.0.0.0:3389           0.0.0.0:0              LISTENING       3532
  TermService
  [svchost.exe]

  TCP    127.0.0.1:1031         0.0.0.0:0              LISTENING       3712
  [alg.exe]

  TCP    127.0.0.1:1434         0.0.0.0:0              LISTENING       2536
  [sqlservr.exe]

  TCP    192.168.1.11:139       0.0.0.0:0              LISTENING       4
  [System]

  TCP    192.168.1.11:3389      192.168.1.5:2953       ESTABLISHED     3532
  TermService
  [svchost.exe]

  UDP    0.0.0.0:3456           *:*                                    1304
  [inetinfo.exe]

  UDP    0.0.0.0:500            *:*                                    432
  [lsass.exe]

  UDP    0.0.0.0:445            *:*                                    4
  [System]

  UDP    0.0.0.0:161            *:*                                    2828
  [snmp.exe]

  UDP    0.0.0.0:4500           *:*                                    432
  [lsass.exe]

  UDP    0.0.0.0:1434           *:*                                    2848
  [sqlbrowser.exe]

  UDP    127.0.0.1:123          *:*                                    772
  W32Time
  [svchost.exe]

  UDP    127.0.0.1:3456         *:*                                    1304
  [inetinfo.exe]

  UDP    192.168.1.11:138       *:*                                    4
  [System]

  UDP    192.168.1.11:123       *:*                                    772
  W32Time
  [svchost.exe]

  UDP    192.168.1.11:137       *:*                                    4
  [System]