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KannusamyThaniyarasu-7630 avatar image
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KannusamyThaniyarasu-7630 asked msrini-MSFT answered

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

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 ?










windows-dhcp-dnsazure-front-door
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@KannusamyThaniyarasu-7630 Have you followed this document to create a cname for the sub-domain?


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msrini-MSFT avatar image
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msrini-MSFT answered

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.

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