How to add cname record into a subdomain at DNS zone in Azure

Kannusamy, Thaniyarasu 21 Reputation points
2021-04-06T14:21:03.153+00:00

Dear Azure Support,

How to add cname record into a subdomain at DNS zone in Azure ?

Here is my issue

1) My client have a domain ("mydomain.com") registered at godaddy.com.
2) I want to deploy app0 under "app0.mydomain.com" subdomain.
3) So i created a public DNS zone for "app0.mydomain.com" at DNS zone in Azure.
4) i have added the 4 NS records from Azure DNS store into Godaddy apex ".mydomain.com".
everything was working fine. i was happy.

But when i want to enable https , i saw a big problem.

My backend is App Service (app0)
My Frontend is FrontDoor.
because FrontDoor is offering free ssl certificate.

but when i set the ssl at front door ,
it asking me to set "app0.azurefd.net" as CNAME record at "app0.mydomain.com"

So i went into DNS zone try to add CNAME record .
but i dont' know how ?
so i went into Godaddy panel , tried to add CNAME "app0.mydomain.com" point to "app0.azurefd.net".
but godaddy is not allowing.

now Azure also not allowing (may be i dont know)
godaddy also not llowing

how can i do that ?

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An Azure service that provides a cloud content delivery network with threat protection.
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Windows DHCP
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Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. msrini-MSFT 9,266 Reputation points Microsoft Employee
    2021-05-08T03:43:52.333+00:00

    Hi,

    In your godaddy, just add CNAME to app0 then point it to app0.azurefd.net.

    It is not allowing because, your Godaddy will append the domain to the value which you provide.