We have a problem for a customer with authentication.
The local Netbios Domain is localdomain (example) The local Dns Domain is localdomain.lan (DC=localdomain, DC=Lan)
90% of the users have an Office365 maibox . The link was made with the UPN and The UPN was modified.
Eg : I have a user LOCALDOMAIN\Test = Test@localdomain.lan but Tthe UPN is eg Mister.Test@officialdomain.com (example)
User Agent (last version) are installed on Domain Controllers (Wmi seems to give other problems)
The user logs into the domain with LOCALDOMAIN\Test only. But Sometimes the authentication gives firstname.lastname@example.org (Windows 10 and often when computer goes out from sleep, but we do not know why) on User Agent and Controller.
So email@example.com is not in any attributes of Active Directory for the users And Palo ALto does not get the correct user (no match) . The logs display firstname.lastname@example.org, but no match to the rules. On the User Agent logs, we have email@example.com.
We can modify the link to Office365 (the customer does not like) or add a new attribute (we have to maintain it) but is there another solution ? I tried to add sAMAccountname@localdomain.lan in the Alternate username but it does not work ( User Authentication/Group Mapping Settings)
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