This section describes the optional, additional steps that are necessary to configure Active Directory authentication for vCenter.
- Open a web browser and go to the vSphere Web Client at https://<vCenter Server Appliance FQDN or IP>/vsphere-client.
- Login as the SSO administrator (example: administrator@vsphere.local).
- Select Administration > Deployment > System Configuration.
- Click Nodes, and then click the vCenter Server Appliance node, as shown in the following example.

Figure 21. vCenter Server Appliance node selection
- Under the Manage tab, click Settings and select Advanced > Active Directory.
- Click Join and enter the requested information for your domain.
- Click OK.
- Under the context menu, right-click the vCenter Server Appliance and select Reboot.
- After vCenter Server Appliance restarts, open a web browser and go to the vSphere Web Client at https://<vCenter Server Appliance FQDN or IP>/vsphere-client.
- Log in as the SSO administrator (example: administrator@vsphere.local).
- Select Administration > Single Sign-On > Configuration.
- Click the Identity Sources tab.
- Click the green plus sign (+) to add an identity source.
- On the Select Identity Source Type page, select Active Directory (Integrated Windows Authentication).
- Enter the domain name, and then click OK.