Ssl – Azure App Service Domain Verification – No App service app configured with the custom domain

azureazure-app-servicesazure-web-appssslsubdomain

I have an existing custom sub-domain which I have mapped to my existing Azure App Service web app via CNAME. I have also assigned this custom sub-domain to my app service app via Azure portal successfully. I can see "HOSTNAMES ASSIGNED TO SITE" section as expected and also access my custom sub-domain to see default azure app service content page.

To buy SSL certificate I'm following steps on MS docs here.

I can't complete Step# 4 Verify Domain Ownership. I selected App Service Verification method to verify ownership. However, I continue to see following message –

No App service app configured with the custom domain : my-sub-domain

Best Answer

Refresh the Azure Portal and then re-check.

You can verify the DNS propagation by going to this URL http://digwebinterface.com/

Specify the hostnames in the textbox and click on Dig. Verify the results to confirm if the recent changes have taken effect

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It doesn't need to resolve to anything. Microsoft will check your domain's DNS for that record. If it exists, you've proved you at least have control of the domain's DNS records, and as such have proven enough control of the domain for Microsoft's comfort level.

No one other than Microsoft's "does Howiecamp own example.com?" automated system will ever do anything with that subdomain.

Azure Web App getting 404 when using the IP Address

You would simply click the Add Hostname, and add www.whateverdomain.com in. At that point, Azure will try to verify the new hostname... So you will want to have the DNS already setup to point to your Azure IP for the web app. You could try it without DNS setup, it may have other options now (It seems like every time I login lately, that azure has new features/options). Worst case scenario you will need to remove the custom name and re-add it.

If you are just looking to test something on your webapp and do not own a custom domain or do not want to wait for DNS etc, you can modify your hosts file on your local workstation. Assuming a Windows OS, modify the file: c:\windows\system32\drivers\etc\hosts At the end of the file add a new line with your IP, space, your domain name. So:

1.2.3.4 www.whateverdomain.com

Then you will be able to browse to www.whateverdomain.com and it should work.

Azure I believe is looking for the host headers. With this hosts file trick, your machine will send the host header in the request that Azure is looking for.

Best Answer

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