Cannot link Azure created private DNS zone with a custom created private DNS Zone

Khushaboo Shandilya 1 Reputation point
2021-05-13T08:16:48.267+00:00

Scenario:

We have a storage account - teststorageaccount.
We created a Virtual Network with a subnet (pvtsubnet)
Then we created a Private Endpoint for the storage account using Private Endpoint tab under Networking section.
We specified below:

  1. resource group
  2. component of storage account - blob
  3. private endpoint name
  4. virtual network/subnet
  5. private DNS Zone was automatically created (format - privatelink.blob.core.windows.net) within the current resource group (existing custom created private DNS zone was not visible under drop down) (FQDN -<storageaccount>.privatelink.blob.core.windows.net)

Thing is, we already have a private DNS zone - pvt.dns.zone which we wanted to use with the storage account private endpoint.

To accomplish this, we tried to create a "A" record in pvt.dns.zone with name as - <storageaccount>.privatelink.blob.core.windows.net, IP - (IP from the vnet range which was used whilst creating private endpoint for the storage account)

Although the "A" record creation is successful.
nslookup <storageaccount>.privatelink.blob.core.windows.net.pvt.dns.zone
errors out - Non-existent domain

Please suggest how can we implement below requirement and also if this implementation is even valid?

Use an existing private DNS zone for a private endpoint created for an Azure storage account.
To accomplish this requirement

Azure DNS
Azure DNS
An Azure service that enables hosting Domain Name System (DNS) domains in Azure.
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