Kerberos Cloud Trust is a hybrid authentication protocol developed by Microsoft to enable secure and passwordless sign-ins. Kerberos Cloud Trust combines the strengths of Kerberos and Windows Hello for Business to offer a modern, secure, and user-friendly authentication solution. It is particularly useful in hybrid environments where both cloud and on-premises resources are utilized. Users authenticate securely and seamlessly both locally and in the cloud.
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The regular roll over of the Kerberos decryption key is crucial to ensure the security and integrity of seamless Single Sign-On (SSO) in hybrid IT environments. Microsoft recommends rolling over this key every 30 days to close potential security gaps and ensure smooth integration between on-premises Active Directory and Microsoft Entra ID. This process can be automated to minimize administrative effort and ensure continuous security.
Microsoft Entra Cloud Sync is an advanced synchronization solution that enables seamless integration of objects from Active Directory into Microsoft Entra ID. This technology simplifies synchronization by orchestrating the deployment of Active Directory objects within Microsoft Entra ID in the Microsoft Cloud Services. For the on-premises infrastructure, only the installation of a lightweight agent is required, reducing complexity and enhancing efficiency.
Users can use the same credentials for on-premises and cloud-based services with Seamless SSO. There is no need for recurring prompts to enter credentials between services. The necessary data are automatically synced between Active Directory and Azure Active Directory.
When configuring Seamless SSO, the computer account “AZUREADSSOACC” is created. For security reasons, the Kerberos encryption key for this account should be rolled over every 30 days.
Microsoft Entra Hybrid Join is an identity solution that allows devices to authenticate in both a Windows Server Active Directory domain and Microsoft Entra ID. This provides companies with the flexibility and security they need to effectively manage resources while ensuring a high level of security.
Microsoft Entra ID is built with global high availability. In conjunction with features such as seamless single sign-on (SSO) or Microsoft Entra Conditional Access, Microsoft Entra ID offers additional features that significantly increase security and can only be implemented at a high cost with a pure Windows Server Active Directory infrastructure.
With Microsoft Entra Hybrid Join, you get the best of both worlds (local and cloud) at the same time. The device has access to both Windows Server Active Directory and Microsoft Entra ID.
This blog article shows in detail the steps for configuring Microsoft Entra Hybrid Join.