how do i configure on-prem name resolution for azure joined devices

Question

we are moving to an azure-joined environment, without any on-prem servers, but still want to resolve internal names.

When a device joins azureAD, how and where does it register its DNS?

Thanks

adrian

Answer 1

In your scenario, when a device joins Entra ID, it does not automatically register its hostname in any DNS server, because Entra ID by itself doesn't handle DNS. If you're using on-prem DNS servers, they will still handle DNS registration and resolution. If not, that would need to be handled manually or through a custom solution — such as running a DNS server (e.g., Windows DNS or BIND) on a local device, using Azure Private DNS + DNS Forwarding if traffic routes to Azure, or pushing custom DNS server settings via Intune device configuration profiles.

Note that the DNS name resolution/registration of the DEVICE name, is not essential for the join to be successful. The device simply needs to be able to resolve external names involved in processing the join activity.

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hth

Marcin