如何通过windows命令行关闭TCP和UDP端口

有人知道如何通过windows命令行关闭单个连接的TCP或UDP套接字吗?

我在谷歌上搜索了一下，看到一些人也问了同样的问题。但是答案看起来像是netstat或netsh命令的手册页，重点关注如何监视端口。我不想要关于如何监控它们的答案(我已经这样做了)。我想干掉他们。

EDIT, for clarification: Let's say that my server listens TCP port 80. A client makes a connection and port 56789 is allocated for it. Then, I discover that this connection is undesired (e.g. this user is doing bad things, we asked them to stop but the connection didn't get dropped somewhere along the way). Normally, I would add a firewall to do the job, but this would take some time, and I was in an emergency situation. Killing the process that owns the connection is really a bad idea here because this would take down the server (all users would lose functionality when we just want to selectively and temporally drop this one connection).

当前回答

使用CurrPorts(免费且无需安装):http://www.nirsoft.net/utils/cports.html

/close <本端地址> <本端端口> <对端地址> <对端端口>{进程名}

例子:

# Close all connections with remote port 80 and remote address 192.168.1.10: 
/close * * 192.168.1.10 80
# Close all connections with remote port 80 (for all remote addresses): 
/close * * * 80
# Close all connections to remote address 192.168.20.30: 
/close * * 192.168.20.30 *
# Close all connections with local port 80: 
/close * 80 * *
# Close all connections of Firefox with remote port 80: 
/close * * * 80 firefox.exe

它还有一个很好的GUI，具有搜索和筛选功能。

注意:这个答案是huntharo和JasonXA的答案和评论组合在一起，并进行了简化，以方便读者阅读。例子来自CurrPorts的网页。

2016-01-18 14:37:32

其他回答

是的，有可能关闭TCP或UDP端口，在DOS中有一个命令

TASKKILL /f /pid 1234

我希望这对你有用

2017-03-30 13:52:09

例如，您希望释放端口8080 然后，按照这些命令执行。

 netstat -ano
 taskkill /f /im [PID of the port 8080 got from previous command]

完成了!

2016-12-25 09:17:57

为了关闭该端口，您可以确定正在侦听该端口的进程并杀死该进程。

2011-12-31 15:38:27

我找到了正确答案。尝试Sysinternals中的TCPView，现在由微软拥有。你可以在http://technet.microsoft.com/en-us/sysinternals/bb897437上找到它

2013-09-23 19:03:21

尝试Sysinternals/Microsoft的工具TCPView (GUI)和Tcpvcon(命令行)。 https://learn.microsoft.com/en-us/sysinternals/downloads/tcpview

2012-04-26 19:23:08

如何通过windows命令行关闭TCP和UDP端口

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