5

Is there a way to list the current list of all the groups and/or hosts in the PrincipalsAllowedToRetrieveManagedPassword property of a gMSA (group Managed Service Account)?

There isn't any help on the "Getting Started" page, what is more their examples are returning errors and are not very clear.

6

It turns out that you can list all the properties for gMSA by running:

Get-ADServiceAccount -Identity <gMSA-account> -Properties *

And if you want to narrow down the list you can use:

Get-ADServiceAccount -Identity <gMSA-account> -Properties PrincipalsAllowedToRetrieveManagedPassword

It's not very readable, since it's a list of distinguished names and has several other properties listed, but it's a useful command.

Update: to show all the entries from this properties you can use this command, which is shorter and easier to handle that what @Gregory posted

(Get-ADServiceAccount -Identity <gMSA-account> -Properties *).PrincipalsAllowedToRetrieveManagedPassword

You can select specific property, instead of the wildcard *, to decrease the data flowing over the network, but the line becomes prohibitively long due to the verbose name of the property.

1

If the list of Principals includes an ellipsis (…), then you will need a foreach loop to get the full list:
Get-ADServiceAccount -Identity <gMSA-account> -Properties PrincipalsAllowedToRetrieveManagedPassword | select PrincipalsAllowedToRetrieveManagedPassword | ForEach-Object { $_.PrincipalsAllowedToRetrieveManagedPassword }

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