An Azure service that enables hosting Domain Name System (DNS) domains in Azure.
Hi,
For Azure Public DNS zone, you may navigate to below link in Azure portal:
Click on your zone, then on left menu click on DNS Management -- Recordsets. To edit your CNAME, click on the pencil icon next to it.
Manage DNS records and record sets by using the Azure portal
https://learn.microsoft.com/en-us/azure/dns/dns-operations-recordsets-portal
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Thanks.
-TP