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Initialize the HGS cluster using AD mode in a new dedicated forest (default)

Important

Admin-trusted attestation (AD mode) is deprecated beginning with Windows Server 2019. For environments where TPM attestation is not possible, configure host key attestation. Host key attestation provides similar assurance to AD mode and is simpler to set up.

  1. Clients can easily contact any HGS node by using the failover clustering distributed network name (DNN). You'll need to choose a DNN. This name will be registered in the HGS DNS service. As an example, if you have 3 HGS nodes with hostnames HGS01, HGS02, and HGS03, you might decide to choose "hgs" or "HgsCluster" for the DNN.

  2. Locate your HGS guardian certificates. You will need one signing certificate and one encryption certificate to initialize the HGS cluster. The easiest way to provide certificates to HGS is to create a password-protected PFX file for each certificate which contains both the public and private keys. If you are using HSM-backed keys or other non-exportable certificates, make sure the certificate is installed into the local machine's certificate store before continuing. For more information about which certificates to use, see Obtain certificates for HGS.

  3. Run Initialize-HgsServer in an elevated PowerShell window on the first HGS node. The syntax of this cmdlet supports many different inputs, but the 2 most common invocations are below:

    • If you are using PFX files for your signing and encryption certificates, run the following commands:

      $signingCertPass = Read-Host -AsSecureString -Prompt "Signing certificate password"
$encryptionCertPass = Read-Host -AsSecureString -Prompt "Encryption certificate password"

Initialize-HgsServer -HgsServiceName 'MyHgsDNN' -SigningCertificatePath '.\signCert.pfx' -SigningCertificatePassword $signingCertPass -EncryptionCertificatePath '.\encCert.pfx' -EncryptionCertificatePassword $encryptionCertPass -TrustActiveDirectory

    • If you are using non-exportable certificates that are installed in the local certificate store, run the following command. If you do not know the thumbprints of your certificates, you can list available certificates by running Get-ChildItem Cert:\LocalMachine\My.

      Initialize-HgsServer -HgsServiceName 'MyHgsDNN' -SigningCertificateThumbprint '1A2B3C4D5E6F...' -EncryptionCertificateThumbprint '0F9E8D7C6B5A...' --TrustActiveDirectory

  4. If you provided any certificates to HGS using thumbprints, you will be instructed to grant HGS read access to the private key of those certificates. On a server with Desktop Experience installed, complete the following steps:

    1. Open the local computer certificate manager (certlm.msc)
    2. Find the certificate(s) > right-click > all tasks > manage private keys
    3. Click Add
    4. In the object picker window, click Object types and enable service accounts
    5. Enter the name of the service account mentioned in the warning text from Initialize-HgsServer
    6. Ensure the gMSA has "Read" access to the private key.

    On server core, you will need to download a PowerShell module to assist in setting the private key permissions.

    1. Run Install-Module GuardedFabricTools on the HGS server if it has Internet connectivity, or run Save-Module GuardedFabricTools on another computer and copy the module over to the HGS server.

    2. Run Import-Module GuardedFabricTools. This will add additional properties to certificate objects found in PowerShell.

    3. Find your certificate thumbprint in PowerShell with Get-ChildItem Cert:\LocalMachine\My

    4. Update the ACL, replacing the thumbprint with your own and the gMSA account in the code below with the account listed in the warning text of Initialize-HgsServer.

      $certificate = Get-Item "Cert:\LocalMachine\1A2B3C..."
$certificate.Acl = $certificate.Acl | Add-AccessRule "HgsSvc_1A2B3C" Read Allow

    If you are using HSM-backed certificates, or certificates stored in a third party key storage provider, these steps may not apply to you. Consult your key storage provider's documentation to learn how to manage permissions on your private key. In some cases, there is no authorization, or authorization is provided to the entire computer when the certificate is installed.

  5. That's it! In a production environment, you should continue to add additional HGS nodes to your cluster.

Next step

Configure fabric DNS