Setting a reverse DNS entry in Microsoft Azure

To set a reverse DNS entry (RDNS entry) in Microsoft Azure, do the following:

1. Open portal.azure.com.
2. Go to Dashboard > Resource groups >[ResourceGroupToWhichYourVirtualComputerBelongs] > [YourVirtualComputer] > Properties.
3. Enter a name for the public IP address.
   
4. Open Azure Shell.
   
5. Enter the following command:
   az network public-ip update –resource-group <ResourceGroup> –name <IPAddressName> –reverse-fqdn <FullDNSName>  –dns-name <DNSName>.