1.Using the Kerberos option requires you to configure a Service Principal Name(SPN) for all of the domain User accounts who will be authenticating through Kerberos.
2.Using the Kerberos option requires you to configure a Service Principal Name(SPN) for the web application domain user account.
3.Using the Kerberos option requires you to configure a User Principal Name (UPN) for all of the domain user accounts who will be authenticating through Kerberos.
4.Using the Kerberos option requires you to configure a User Principal Name (UPN) for the web application domain user account.