how to works dns zone in Azure

Question

Hello,
I have a Windows server with dns service, I would like to migrate to Azure dns,

Does DNS Azue equal the DNS service functions on Windows Server?

thenks a lot
Daniele

Answer 1

The DNS for Windows Server is different from Azure DNS. Azure DNS is for administrating domains, apps and VMs in Azure Cloud.

What is Azure DNS?

https://learn.microsoft.com/en-us/azure/dns/dns-overview

Domain Name System (DNS) (Windows Server)

https://learn.microsoft.com/en-us/windows-server/networking/dns/dns-top

Name resolution for resources in Azure virtual networks (Considerations)

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

--------------------------------

If this is helpful please mark as correct answer.

Answer 2

Hi @Daniele ,

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to understand how to migrate your DNS server from OnPrem to Azure.

To address your query,
No.
Azure DNS is not equal to DNS service on Windows Server

Azure DNS is used to host Public DNS Domains. (not buy, only host)
https://learn.microsoft.com/en-us/azure/dns/dns-delegate-domain-azure-dns

To migrate your DNS from OnPrem to Azure, there are generally two ways.

#1 Create a Windows Server VM and install DNS service on this

• This is straightforward.
• Spin up a Windows Server VM in Azure and install the DNS service.
• Add all the OnPrem DNS server configurations (such as Zones and forwarders)
• Update the Vnet to use this VM for DNS. Refer to "Change DNS servers" in https://learn.microsoft.com/en-us/azure/virtual-network/manage-virtual-network
• This is explained under "Name resolution that uses your own DNS server" in https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-name-resolution-for-vms-and-role-instances#name-resolution-that-uses-your-own-dns-server

#2 You may make use of Azure Private DNS Zone

• Refer : https://learn.microsoft.com/en-us/azure/dns/private-dns-privatednszone
• You will be required to create Zones and link it with your Virtual Network
• i.e, This requires you to add the records individually in the Zone. There is also support for auto update.
• Once linked, you can use Azure's default wire server IP for name resolution
• This may help you with configuration: https://learn.microsoft.com/en-us/azure/dns/private-dns-scenarios

P.S : This can also be used in conjunction with #1.
Refer "Virtual network and on-premises workloads using a DNS forwarder" under https://learn.microsoft.com/en-us/azure/private-link/private-endpoint-dns#virtual-network-and-on-premises-workloads-using-a-dns-forwarder

Thanks,
Kapil

----------------------------------------------------------------------------------------------------------------

Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.