Скачать или смотреть Port Checking using with Powershell

Test-NetConnection "IP or URL" -Port "PortNumber"

In this video you can check tcp port using powershell.

"The Test-NetConnection cmdlet displays diagnostic information for a connection. It supports ping test, TCP test, route tracing, and route selection diagnostics. Depending on the input parameters, the output can include the DNS lookup results, a list of IP interfaces, IPsec rules, route/source address selection results, and/or confirmation of connection establishment."[Microsoft]
===================== Sample Commands from Microsoft =====================
Test-NetConnection
Test-NetConnection -InformationLevel "Detailed"
Test-NetConnection -Port 80 -InformationLevel "Detailed"
Test-NetConnection -ComputerName "www.contoso.com" -InformationLevel "Detailed"
Test-NetConnection -ComputerName www.contoso.com -DiagnoseRouting -InformationLevel Detailed
Test-NetConnection -ComputerName "www.contoso.com" -ConstrainInterface 5 -DiagnoseRouting -InformationLevel "Detailed"
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===================== Sample Commands =====================
Link: https://docs.microsoft.com/en-us/powe...