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Netstat to check listening ports


To check listening ports on windows, netstat is a tool that is quite handy.

And not only windows uses this tool, Linux system use this tool also.
In windows to check listening ports and the application that uses the port type:

netstat -abn

The command needs to run at an elevated command prompt.

netstat -ano  is able to check listening and established ports.

Check out this link on how to open an elevated command prompt:
http://quickbytesstuff.blogspot.sg/2014/10/open-elevated-command-prompt.html

The command will list the local address the foreign address or the public ip and the state.

Example output will be like this:

[chrome.exe]
 TCP    192.168.1.50:3101    0.0.117.1:443     ESTABLISHED

In Linux this command would come handy:

netstat -tulpn

It will list the udp, tcp ports that are listening and also the daemon service listening or using the port.

Check out link below how to use netstat and Powershell to check open ports in Windows.
http://quickbytesstuff.blogspot.sg/2014/08/check-for-open-ports-in-windows.html


Cheers..till next time..

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