I know my question is very similar to this one; https://sharepoint.stackexchange.com/questions/179904/sql-database-login-for-config-on-instance-failed-additional-error-informat
However in my case the user is NT AUTHORITY\ANONYMOUS LOGON.
Complete Error Message:
SQL database login for 'SharePoint2016_Intranet_ConfigDB' on instance 'SQLServer_1' failed. Additional error information from SQL Server is included below. Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.
I am new to SharePoint Administration. And thus don't know what it will mean giving permission to Anonymous Logon.
Kindly suggest.