KB0082 - Why is PSU listening on port 5000 even though it is not configured to?

KB0082 - Why is PSU listening on port 5000 even though it is not configured to?

Background

You have PSU setup using only HTTPS (typically on port 443) by way of the appsettings.json file located in $Env:ProgramData\PowerShellUniversal[1].


Problem

The PSU instance is listening on two ports: the default port of 5000 and the port you configured for HTTPS (typically 443).


Root Cause

Settings not defined in $Env:ProgramData\PowerShellUniversal\appsettings.json can be inherited from the appsettings.json file in the PSU application folder (typically ${Env:ProgramFiles(x86)}\Universal on Windows).


Solution

Modify the appsettings.json file in the PSU application folder (typically ${Env:ProgramFiles(x86)}\Universal) to match your desired configuration (in this scenario, to remove the default HTTP endpoint on port 5000).


Alternative Workaround

If you are not able to modify the appsettings.json within the PSU application folder, then as a workaround you can try defining HTTP in the $Env:ProgramData\PowerShellUniversal\appsettings.json to another port (e.g. port 80 or something else that is blocked by your firewall).


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