DNS record locating a service, such as the domain controller entries that AD DS clients rely on. Azure-provided DNS cannot serve the SRV records AD needs.
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Terms in this definition
- DNS
The system that turns names into addresses. In Azure, private endpoints depend on private DNS zones, which are queried through 168.63.129.16.
- DC
A server running AD DS. Placing these servers in Azure as well as on-premises keeps synchronisation and user sign-in working if one location fails.
- AD DS
Short for Active Directory Domain Services, the domain controller-based Windows directory run on-premises. Microsoft Entra Domain Services offers a managed counterpart.
- Azure-provided DNS
Default resolver for a VNet, at 168.63.129.16, which answers with records from private DNS zones linked to that VNet; a custom DNS server has to forward queries to it to resolve those records.