To create a domain-wide policy, right-click your domain root Organizational Unit (OU), which is displayed as your domain name, and select Create and Link a GPO Here from the context menu.The Group Policy Management Console (GPMC) appears. Select Start > All Programs > Administrative Tools > Group Policy Management.You can check that the Group Policy has propagated to all computers in the domain by opening your browser on a workstation, opening Tools > Internet Options > Content > Certificates > Trusted Root Certification Authorities, and ensuring that the Cisco Umbrella root certificate is present.

Rebooting client machines forces the synchronization.

By default, the background synchronization processing happens every 90 to 120 minutes at randomized times. The new policy may not take effect immediately on all client machines. You have now created the Group Policy Object to install the Cisco Umbrella root certificate on all of the computers in your domain.

Accept the default option, place all certificates in the following store (Trusted Root Certification Authorities), click Next, and then click Finish and OK.

With the full path to the certificate displayed in the File name field, click Next.

Navigate to where you downloaded the certificate authority on your local system, and double-click the Cisco_Umbrella_Root_CA.cer file.

In the Certificate Import wizard, click Next, and in the File to Import page, click Browse.

In the configuration options sidebar, expand Computer Configuration > Windows Settings > Security Settings > Public Key Policies, right-click Trusted Root Certification Authorities, and select Import.

The Group Policy Object Editor is displayed.

Select the new Group Policy Object and click Edit.

Click New, name the policy Umbrella Certificate Installer, and press Return / Enter.

In the Properties dialog box, click the Group Policy tab.

To create a domain-wide policy, right-click your domain root Organizational Unit (OU), which is displayed as your domain name, and select Properties from the context menu.

The Microsoft Management Console (MMC) is displayed.

Select Start > All Programs > Administrative Tools > Active Directory Users and Computers.

Log into your Active Directory server using a domain administrator account.

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