During the installation of Microsoft SQL Server, you have two choices regarding the account used to start the “SQL Server” service:
- Local System of the computer.
- Service account, user account, created in Active Directory.
Microsoft recommends to use the service account instead of local system. However, when using service account, you can have this error in SQL Logs:
The SQL Server Network Interface library could not register the Service Principal Name (SPN) for the SQL Server service. Failure to register a SPN might cause integrated authentication to use NTLM instead of Kerberos
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