cname dns vm to traffic manager

Question

how to cname current dns vm (hostname.southeastasia.cloudapp.azure.com) to azure traffic manager (*example.*trafficmanager.net)
i needed because our mobile app use current dns vm, and i have planning to provide azure recovery site

i already setup dns zone southeastasia.cloudapp.azure.com with *hostname CNAME to example.*trafficmanager.net but it does not working

Answer 1

@Anonymous

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 configure a CNAME for your Azure VM.

Please note that to configure a CNAME for a domain, you must own it.

In your case, the domain is "southeastasia.cloudapp.azure.com" - which is of course not owned by you.

Also, in this case, you should configure your Mobile App to use Traffic Manager's Domain, and not the VM's (hostname.southeastasia.cloudapp.azure.com).

Refer : How Traffic Manager Works

FIRST - You may own, "contoso.com"

• If you do, you can add the Traffic Manager's domain as a CNAME to <yourappname>.contoso.com
• If you don't , you can directly use the Traffic Manager's domain as DNS for the VM
• So when someone queries for <yourappname>.contoso.com , they will get <example>.trafficmanager.net

SECOND - Traffic Manger's domain,

• Now, the traffic Manger's domain will be queried , i.e, <example>.trafficmanager.net
• Then, <example>.trafficmanager.net will give your VM's domain (based on the routing method you have specified)
• https://learn.microsoft.com/en-us/azure/traffic-manager/traffic-manager-routing-methods

THIRD - VM's domain,

• Now, your mobile app will get the VM's domain and it can resolve it to the VM's public IP.

Please let us know if we can be of any further assistance here.

Thanks,

Kapil