Unable to create username mapping
We got a scenario where an administrator was unable to create username mapping. He was getting the following error messages in event logs.
|Application||mapsvc||Error||8259||Failed to create simple group maps for the map definition <domain name> - pcnfs since the nt groups could not be loaded.|
|Application||mapsvc||Error||8257||Failed to create simple user maps for the map definition <domain name> - pcnfs since the nt users could not be loaded.|
Even after creating advanced username mapping, the information is not getting displayed if you run mapadmin list –all command or even if you try to see it from the GUI.
To make the scenario more complicated, the registry keys were actually getting populated:
HKLM -> System -> CurrentControlSet -> Services -> Mapsvc -> CurrentVersion:
Be default, username mapping service is started by “Local System” account. We change the setting and configure it to start using “domain admin” account.
This resolves the issue!