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Set up CMG for Configuration Manager

Applies to: Configuration Manager (current branch)

Once you have the prerequisites in place, you can start the process to set up a cloud management gateway (CMG). Before you start this process, make sure you have the necessary information and prerequisites to create a CMG. For more information, see Set up checklist for CMG.

This step of the overall process includes the following actions:

  • Use the Configuration Manager console to create the CMG service in Azure.
  • Configure the primary site for client certificate authentication.
  • Add the CMG connection point site system role.
  • Configure the management point and software update point for CMG traffic.
  • Configure boundary groups.

Set up a CMG

Note

Deploying a CMG with a virtual machine scale set in Azure was first introduced in version 2010 as a pre-release feature. Beginning with version 2107, it's no longer a pre-release feature.

Configuration Manager doesn't enable this optional feature by default. You must enable this feature before using it. For more information, see Enable optional features from updates.

Do this procedure on the top-level site. That site is either a standalone primary site, or the central administration site (CAS).

  1. In the Configuration Manager console, go to the Administration workspace, expand Cloud Services, and select Cloud Management Gateway.

  2. Select Create Cloud Management Gateway in the ribbon.

  3. On the General page of the wizard, first specify the Azure environment for this CMG:

    • AzurePublicCloud: Create the service in the global Azure cloud.
    • AzureUSGovernmentCloud: Create the service in the Azure US Government cloud.
  4. Next choose how you want to deploy the CMG in Azure:

    • Virtual machine scale set

      • Starting in version 2203, virtual machine scale set is the only option.

      • Starting in version 2107, this option is the recommended deployment method. Even if you have an existing CMG deployed with the cloud service (classic) method, deploy new CMG instances as a virtual machine scale set.

      • In versions 2010 and 2103, you have to enable this pre-release feature to see it. In these releases, it's only intended for customers with a Cloud Solution Provider (CSP) subscription. If you already deployed a CMG with the cloud service (classic) method, this option is unavailable. For more information, see Plan for CMG: Virtual machine scale sets.

    • Cloud service (classic)

      Important

      Starting in version 2203, the option to deploy a CMG as a cloud service (classic) is removed. All CMG deployments should use a virtual machine scale set. For more information, see Removed and deprecated features.

      • In version 2107 and later, only use this option if you can't deploy with a virtual machine scale set because of one of the limitations.

      • In versions 2010 and 2103, most customers should use this deployment method.

  5. Starting in version 2309, select Microsoft Entra tenant name, Microsoft Entra app name automatically populates. Select Sign in. Authenticate with an Azure Subscription Owner account. If you own multiple subscriptions, select the Subscription ID of the subscription you want to use.

    Note

    Starting in version 2309, We have deprecated the use of first party app for the creation of CMG. Now, CMG uses a third party server app to get bearer tokens.

  6. In versions 2303 and below, Select Sign in. Authenticate with an Azure Subscription Owner account. The wizard automatically populates the remaining fields from the information stored during the Microsoft Entra integration prerequisite. If you own multiple subscriptions, select the Subscription ID of the subscription you want to use.

    Select Next, and wait as the site tests the connection to Azure.

  7. On the Settings page of the wizard, first Browse to the .PFX file for the CMG server authentication certificate (Certificate file). The common name from this certificate is used to populate the Service name and Deployment name fields.

    If you use a wildcard certificate, replace the asterisk (*) in the Service name field with the globally unique deployment name prefix for your CMG.

    1. Optionally specify a Description to further identify this CMG in the Configuration Manager console.

    2. Select an Azure Region for this CMG. The list of available regions may vary based on the selected subscription.

    3. Select a Resource Group option:

      • If you choose Use existing, then select an existing resource group from the list. This resource group needs to already exist in the same region you selected for the CMG. If you select an existing resource group, and it's in a different region than the previously selected region, the CMG will fail to deploy.

      • If you choose Create new, then enter the new resource group name.

    4. By default, the VM Size is Standard (A2_V2). Select another option as your design specifies. For example, Large (A4_v2) for increased client capacity per VM, or Lab (B2s) in a small test environment.

      Important

      The Lab (B2s) size VM is only intended for lab testing and small proof-of-concept environments. For example, with the Configuration Manager technical preview branch. The B2s VMs aren't intended for production use with the CMG. They are low cost and low performing.

    5. In the VM Instance field, enter the number of VMs for this service. The default is one, but you can scale up to 16 VMs per CMG.

    6. If you're using client authentication certificates, select Certificates to add trusted root certificates. Add all of the certificates in the trust chain.

      Note

      A trusted root certificate isn't required when using Microsoft Entra ID or site-issued tokens for client authentication.

    7. By default, the wizard enables the option to Verify Client Certificate Revocation. A certificate revocation list (CRL) must be publicly published for this verification to work. For more information, see Publish the certificate revocation list.

    8. By default, the wizard enables the option to Enforce TLS 1.2. This setting requires the Azure VM to use the TLS 1.2 encryption protocol. It doesn't apply to any on-premises Configuration Manager site servers or clients. Starting in version 2107 with the update rollup, this setting also applies to the CMG storage account. For more information, see How to enable TLS 1.2.

    9. By default, the wizard enables the option to Allow CMG to function as a cloud distribution point and serve content from Azure storage. If you plan on targeting deployments with content to clients, you need to configure the CMG to serve content.

  8. Next is the Alerts page of the wizard. To monitor CMG traffic with a 14-day threshold, enable the threshold alert. Then specify the threshold, and the percentage at which to raise the different alert levels. You can also enable a storage alert threshold. Choose Next when you're done.

  9. Review the settings, and complete the wizard.

Configuration Manager starts to set up the service. The amount of time it takes to completely provision the service in Azure is dependent upon the settings that you specified. To determine when the service is ready, view the Status column for the new CMG.

To troubleshoot CMG deployments, use CloudMgr.log and CMGSetup.log. For more information, see Monitor CMG.

Tip

You can also use the PowerShell cmdlet New-CMCloudManagementGateway for this process. Optionally use this cmdlet to create the CMG service. For more information, see New-CMCloudManagementGateway.

Configure primary site for client certificate authentication

If you're using client authentication certificates for clients to authenticate with the CMG, follow this procedure to configure each primary site.

  1. In the Configuration Manager console, go to the Administration workspace, expand Site Configuration, and select Sites.

  2. Select the primary site to which your internet-based clients are assigned, and choose Properties.

  3. Switch to the Communication Security tab, and select Use PKI client certificate (client authentication) when available.

  4. If you don't publish a CRL, disable the following option: Clients check the certificate revocation list (CRL) for site systems.

Add the CMG connection point

The CMG connection point is the site system role that's required for communication from your on-premises Configuration Manager deployment to the cloud-based CMG. Before you start this process, you should have already developed a plan for the role, and identified at least one existing site system server. For more information, see Plan for the CMG.

To add the CMG connection point, the following steps summarize the instructions to install site system roles:

  1. In the Configuration Manager console, go to the Administration workspace, expand Site Configuration, and select the Servers and Site System Roles node.

  2. Select an existing site server to which you want to add this role. In the ribbon, on the Home tab, select Add Site System Roles.

  3. On the System Role Selection screen, choose Cloud management gateway connection point, and then select Next. Choose the Cloud management gateway name to which this server connects. The wizard will show the region for the selected CMG.

Important

If you're using client authentication certificates, the CMG connection point needs this certificate. For more information, see client authentication certificate.

To troubleshoot CMG service health, use CMGService.log and SMS_Cloud_ProxyConnector.log. For more information, see Log files.

Tip

Optionally, you can also use the PowerShell cmdlet Add-CMCloudManagementGatewayConnectionPoint to add the CMG connection point role to a site system server.

For more information, see Add-CMCloudManagementGatewayConnectionPoint.

Configure client-facing roles for CMG traffic

Configure the management point and software update point site systems to accept CMG traffic. Do this procedure on the primary site, for all management points and software update points that service internet-based clients.

  1. In the Configuration Manager console, go to the Administration workspace, expand Site Configuration, and select the Servers and Site System Roles node. On the Home tab of the ribbon, in the View group, select Servers with Role. Then select Management point from the list.

  2. Select the site system server you want to configure for CMG traffic. Select the Management point role in the details pane, and then in the Site Role group of the ribbon, select Properties.

  3. In the Management point properties sheet, under Client Connections select Allow Configuration Manager cloud management gateway traffic.

    Depending upon your CMG design and Configuration Manager version, you may need to enable the HTTPS option. For more information, see Enable management point for HTTPS.

  4. Select OK to close the management point properties window.

Repeat these steps for other management points as needed, and for any software update points.

Configure boundary groups

You can associate a CMG with a boundary group. This configuration allows clients to use the CMG for client communication according to boundary group relationships. This configuration is beneficial for VPN or branch office clients where it might be better to manage them via a CMG than over the VPN or WAN connection. If you enable the option to Prefer cloud-based sources over on-premises sources then clients will prefer the CMG for both policy and content.

For more information on boundary groups, see Configure boundary groups.

When you create or configure a boundary group, on the References tab, add a cloud management gateway. This action associates the CMG with this boundary group.

BranchCache

To enable a content-enabled CMG to use Windows BranchCache, install the BranchCache feature on the site server.

  • If the site server has an on-premises distribution point site system role, configure the option in that role's properties to Enable and configure BranchCache. For more information, see Configure a distribution point.

  • If the site server doesn't have a distribution point role, install the BranchCache feature in Windows. For more information, see Install the BranchCache feature.

If you've already distributed content to a CMG, and then decide to enable BranchCache, first install the feature. Then redistribute the content to the CMG.

Distribute and manage content

Distribute content to the content-enabled CMG the same as any other distribution point. The management point doesn't include the CMG in the list of content locations unless it has the content that clients request. For more information, see Distribute and manage content.

Manage content on a CMG the same as any other distribution point. These actions include assigning it to a distribution point group and managing content packages. For more information, see Install and configure distribution points.

Next steps

Continue your CMG setup by configuring clients for CMG: