To authenticate your users, you must first define an authentication realm, which is the combination of an existing company directory and an authentication method.
To define an authentication realm
From the main navigation menu, navigate to User Access > Realms.
Click New Realm.
Enter a realm name in the Name field. For example, Company XYZ.
Optionally, enter a short description of the realm in the Description field.
Click New next to the Authentication server drop-down menu.
Select Microsoft Active Directory (Basic).
In the Name field, enter a name for the authentication server. For example, Company Directory.
To perform Active Directory searches, the appliance must be able to log on to the authentication server.
In the General section:
Click the Test button next to the Primary domain controller field to validate that the connection is properly configured and that the authentication server is accessible from the appliance.
Expand the Advanced settings area.
Scroll down to the Domain Authentication Forwarding area to specify how the domain name portion of the credentials will be forwarded. In this section, select either:
In the One-Time Passwords section, select the Use one-time passwords with this authentication server checkbox to enable a one-time password. You can then choose to use either:
Click Save.
You are returned to the Configure Realm page.
From the Authentication server drop-down menu, select the authentication server you just configured (Company Directory).
Click Finish
This will create communities within the Company XYZ realm later in this process.