can a VM on-premises use Azure DNS when connected to Azure through an S2S connection?

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Would a VM on-premises connected to Azure through an S2S VPN tunnel be able to query Azure DNS (168.63.129.16) for Azure private zones, or would a custom DNS be required to forward the query?

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Nancy On BEST ANSWER

In this case, you need a custom DNS proxy server to forward queries to Azure for DNS resolution.

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Reference: https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-name-resolution-for-vms-and-role-instances