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Ways to test port connections & ports occupied by Windows services

Test Port Connection

Powershell

Host Port

 

Test-NetConnection localhost -Port 9010 

    - OR -

New-Object System.Net.Sockets.TcpClient("localhost", 80)

 

Find out the port occupied by which application / service

 

 

1. Find out the process ID

Netstat -aon | findstr [port]

 

2. Find the application name by PID

Tasklist | findstr [pid]