When you use Active Directory (AD) Authentication to connect to SQL Server 2017 on Linux, you may notice that the AD authentication fails with the following error message:
Could not obtain information about Windows NT group/user 'UserName', error code 0x80090304. (.Net SqlClient Data Provider)
Note This fix addresses/renews the SQL Server service account Kerberos ticket expiration problem.
This issue is fixed in the following cumulative update for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server: