PowerShell - Which TCP/UDP ports / Processes are listening?

Powershell makes it easy to find out which ports are listening and which processes are using those ports.

PowerShell - Which Ports are Listening

Get-NetTCPConnection -State Listen 

PowerShell - Find out which process is listening on a TCP or UDP port on Windows?

Use this to check which process is using TCP port 49672:

Get-Process -Id (Get-NetTCPConnection -LocalPort 49672).OwningProcess

Use this to check which process is using UDP port 49672:

Get-Process -Id (Get-NetUDPEndpoint -LocalPort 49672).OwningProcess