When you configure Strong Authentication for Active Directory communication between the Endpoint Security client and the Endpoint Security Server, you can configure multiple UPN suffixes for the Active Directory domain name.
In Endpoint Security, go to Endpoint Settings > Authentication Settings.
Click Add.
The New Authentication Principal window opens.
In the Domain name field, enter the alternative Active Directory domain name.
For example, if the previously configured domain name is nac1.com add an alternative domain name such as ad.nac1.com
Configure the other fields with the same values as the previously configured authentication settings:
