We are running several Windows Server 2003 R2 x64 SP2 servers. On our domain controller, I am periodically seeing event ID 11 in the system log, stating the following:
Event Type:	Error
Event Source:	KDC
Event Category:	None
Event ID:	11
Time:		10:01:14 AM
There are multiple accounts with name MSSQLSvc/[SERVER].[DOMAIN]
:1433 of type DS_SERVICE_PRINCIPAL_NAME.
The server that is listed in the error is our MS SQL database server and also the application server for an application used throughout our organization. I have researched this error online, and have tried using the suggested methods to search for duplicate SPN's matching the server name. When I follow the instructions at this location...
...I get the following output as a result:
However, I do not understand SPN's well enough to really interpret that output and know whether it is normal or not.
Can anyone provide me some more information on this error and suggestions for dealing with it?