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Update to PRP recommendations.

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Paolo Matarazzo
2023-06-20 10:53:22 -04:00
parent 3c9d9a16c8
commit 41d9cd98a8
1 changed files with 6 additions and 5 deletions
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11
windows/security/identity-protection/hello-for-business/hello-hybrid-cloud-kerberos-trust.md
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@ -32,12 +32,13 @@ Windows Hello for Business cloud Kerberos trust uses *Azure AD Kerberos*, which
Cloud Kerberos trust uses Azure AD Kerberos, which doesn't require a PKI to request TGTs.\
With Azure AD Kerberos, Azure AD can issue TGTs for one or more AD domains. Windows can request a TGT from Azure AD when authenticating with Windows Hello for Business, and use the returned TGT for sign-in or to access AD-based resources. The on-premises domain controllers are still responsible for Kerberos service tickets and authorization.
When Azure AD Kerberos is enabled in an Active Directory domain, an *Azure AD Kerberos server object* is created in the domain. This object:
When Azure AD Kerberos is enabled in an Active Directory domain, an *AzureADKerberos* computer object is created in the domain. This object:
- Appears as a Read Only Domain Controller (RODC) object, but isn't associated with any physical servers
- Is only used by Azure AD to generate TGTs for the Active Directory domain.
- Is only used by Azure AD to generate TGTs for the Active Directory domain
> [!NOTE]
> The same rules and restrictions used for RODCs apply to the Azure AD Kerberos Server object. For example, users that are direct or indirect members of the built-in security group *Denied RODC Password Replication Group* won't be able to use cloud Kerberos trust.
> Similar rules and restrictions used for RODCs apply to the Azure AD Kerberos Server object. For example, users that are direct or indirect members of priviliged built-in security groups won't be able to use cloud Kerberos trust.
:::image type="content" source="images/azuread-kerberos-object.png" alt-text="Active Directory Users and Computers console, showing the computer object representing the Azure AD Kerberos server ":::
@ -67,9 +68,9 @@ The following scenarios aren't supported using Windows Hello for Business cloud
- Signing in with cloud Kerberos trust on a Hybrid Azure AD joined device without previously signing in with DC connectivity
> [!NOTE]
> The default security policy for AD does not grant permission to sign high privilege accounts on to on-premises resources with cloud Kerberos trust or FIDO2 security keys.
> The default *Password Replication Policy* configured on the AzureADKerberos computer object doesn't allow to sign high privilege accounts on to on-premises resources with cloud Kerberos trust or FIDO2 security keys.
>
> To unblock the accounts, use Active Directory Users and Computers to modify the msDS-NeverRevealGroup property of the Azure AD Kerberos Computer object `CN=AzureADKerberos,OU=Domain Controllers,<domain-DN>`.
> It **isn't recommended** to unblock these accounts by relaxing the Password Replication Policy of the computer object `CN=AzureADKerberos,OU=Domain Controllers,<domain-DN>`.
## Next steps