When we tried to add a custom domain to our current Azure CDN endpoint, the CDN was down while it was trying to verify and issue an SSL certificate for the custom domain. I cancelled the process and everything came back after a few minutes.
I know that in the instructions it states to map the custom domain to the temporary cdnverify subdomain,https://learn.microsoft.com/en-us/azure/cdn/cdn-map-content-to-custom-domain#map-the-temporary-cdnverify-subdomain, but I think this is only if the URL we are using for the custom domain is in use. Is this correct?
Is there any way to avoid this downtime or should this not happen?
but I think this is only if the URL we are using for the custom domain
is in use. Is this correct?
Correct. The link states that when you map an existing domain that is in production. First map your custom domain to your CDN endpoint hostname with the Azure cdnverify subdomain to create a temporary CNAME mapping. so you can access your custom domain URL without interruption while the DNS mapping occurs.
Is there any way to avoid this downtime or should this not happen?
If you have verified that the cdnverify subdomain has been successfully mapped to your endpoint, you can then map the custom domain directly to your CDN endpoint hostname. After creating CNAME for your custom domain, you can delete the temporary cdnverify subdomain CNAME record. It should avoid this downtime.
Related
I have a domain registered through GoDaddy.
Currently there is an A record where:
Host: #
Points To: IP Address
This is pointing to a server that is currently serving the site.
I also have the site in an Azure Storage static web blob, and the endpoint is serving up the site and all is good.
I have tried registering a custom domain via the "asverify" method (see below), and Azure reports that it works. My custom domain "example.com" is accepted and all appears good except, navigating to https://example.com never works (after disabling the A record above).
Create a CNAME record with your DNS provider that points from the "asverify" subdomain (like asverify.www.contoso.com) to asverify.staticweb.blob.core.windows.net or asverify.staticweb.z5.web.core.windows.net. After this step completes, enter your domain below (exclude the 'asverify' subdomain). This method does not incur any downtime. To use this method, select the 'Use indirect CNAME validation' checkbox.
I have done something similar previously with AppServices. I have another domain that I have added to an AppService that is not a subdomain (so it is https://anotherexample.com NOT https://www.anotherexample.com). That was done with adding a TXT record to the DNS at GoDaddy, and works perfectly.
Does Azure Storage allow you to do this with a non-subdomain? That is the only way that I want to access the site.
Does Azure Storage allow you to do this with a non-subdomain?
Unfortunately, Azure Storage does not allow you to use non-subdomains to perform this operation. The subdomain is required, root domains are not supported.
please see:here.
While Azure Storage doesn't allow it as stated by the other anwser. You could very easily place an Azure CDN infront of it that does. To do this from the portal just go to the storage resource and search for the Azure CDN blade. From there you can create an endpoint to the storage or its static website. After creating the endpoint you can go to the resource and use the Custom Domain blade to set it up using a CNAME record.
I have static website on azure storage, it's connected to azure cdn to have https, and i have my custom domain folla.com.pl I want this domain to point to https://companywebsitecdn.azureedge.net/ which is address of my website on azure cdn. I chose custom domain on cdn configuration site, it asks me to make dns mapping to verify ownership, so i make CNAME cdnverify.folla.com.pl to cdnveriy.companywebsitecdn.azureedge.net and it get me to other window with custom doamin https config. And here's my problem, it get's stuck on second step
How I'm suppouse to configure another mapping to make it work, what i mean is to make folla.com.pl to point to https://companywebsitecdn.azureedge.net/ with https. I can't proivde what i already tried with my dns because it was a lot and i don't remember all of it. Also it's already second try and everytime after failure I have wait 8 hours for another try. Thanks in advance
This is my DNS config
When you try to add your custom domain folla.com.pl in the custom domains settings of Azure CDN endpoint. Before this step, you should have a CNAME record in the following format in the DNS zone.
When you turn on the custom domain https, you don't need to make a CNAME cdnverify.folla.com.pl to cdnveriy.companywebsitecdn.azureedge.net. Read here.
If that CNAME record still exists and does not contain the cdnverify
subdomain, the DigiCert CA uses it to automatically validate ownership
of your custom domain.
If the CNAME record entry contains the cdnverify subdomain, follow the rest of the instructions in this step.
DigiCert sends a verification email to the following email addresses. Verify that you can approve directly from one of the following addresses and read here.
admin#<your-domain-name.com>
administrator#<your-domain-name.com>
webmaster#<your-domain-name.com>
hostmaster#<your-domain-name.com>
postmaster#<your-domain-name.com>
Automatic validation typically takes a few hours. If you don’t see your domain validated in 24 hours, open a support ticket.
my team and I are currently exploring using Azure static site blobs and CDN endpoints to host several web apps.
We have successfully deployed our static files to the blog storage and our entire test app loads on both the primary (name.abc.web.core.windows.net) and CDN (name.azureedge.net) endpoints. When it comes to mapping a custom subdomain via the “cdnverify” temporary step, however, I am unsuccessful.
I have very carefully followed and quintuple-checked all steps in the support doc "Tutorial: Add a custom domain to your Azure CDN endpoint" (here).
This is my current DNS config (via Namecheap).
When I skip the cdnverify step, e.g. assign the azureedge CNAME value directly to a host called “v2”, and add that as a custom domain in my Azure portal CDN blade, the subdomain begins loading the CDN endpoint and can even have a CDN-managed HTTPS cert deployed with no manual verification. A dig command to this host (v2.ourdomain.org) finds an expected response (view here).
Here's the rub, though. If I assign a CNAME host of “cdnverify.static” to “cdnverify.name.azureedge.net.” and add it as a custom domain in the portal’s CDN blade, however, this secondary subdomain never loads our endpoint, and cannot deploy an HTTPS cert. The Azure portal verified this host when added to the endpoint and a dig command to “cdnverify.static.ourdomain.org” shows this answer, which looks good.
A dig command to “static.ourdomain.org” returns no answer and a ping command says “unknown host”. This is expected since I’ve not created such a record yet, and so I am wondering how we’re meant to ensure this subdomain is verified as per the “Verify the custom domain” section in the above-mentioned doc.
It’s very important for us that the cdnverify host works and can be assigned a certificate before we permanently re-locate our domains as these apps are already in production. At this point, I am at a loss over what to try next. If possible, I’d love to know what step(s) I am missing, or what can further be done to diagnose the issue.
Many thanks to anybody who might have some advice!
The cdnverify subdomain is to create a temporary CNAME mapping to avoid interruption of web traffic. With this method, users can access your domain without interruption while the DNS mapping occurs. If you have not any existing web app work, you can skip the cdnverify step.
From your description, "a dig command to cdnverify.static.ourdomain.org shows this answer, which looks good." It indicates that the cdnverify host works and you have verified that. You just need to associate the custom domain with your CDN endpoint.
In this step, you enter your custom domain like static.ourdomain.org, including the subdomain. Do not use the cdnverify subdomain name.
After you have added the custom domain static.ourdomain.org successfully in the CDN endpoint.
At this point, your custom domain has been verified by Azure, but
traffic to your domain is not yet being routed to your CDN endpoint.
After waiting long enough to allow the custom domain settings to
propagate to the CDN edge nodes (90 minutes for Azure CDN from
Verizon, 1-2 minutes for Azure CDN from Akamai), return to your DNS
registrar's web site and create another CNAME record that maps your
subdomain to your CDN endpoint. For example, specify the subdomain as
www or cdn, and the hostname as .azureedge.net. With
this step, the registration of your custom domain is complete.
After you have completed the registration of your custom domain, verify that custom domain references your CDN endpoint.
Finally, you could freely remove the cdnverify CNAME record in your domain provider as it was necessary only as an intermediary step..
Ref: https://github.com/uglide/azure-content/blob/master/articles/cdn/cdn-map-content-to-custom-domain.md#how-to-map-custom-domain-to-content-delivery-network-cdn-endpoint
In the azure tutorial for setting up a custom domain for the azure front door, few areas got me confused
A brief period of downtime for the domain can occur.
A custom domain and its sub-domain can be associated with only a single Front Door at a time.
The custom domain also must have routing rule with a default path ('/*') associated with it
We have a production site running that has multiple subdomains. I need to map one subdomain with one front door. For example, we have https://web.contoso.com, https://api.contoso.com, https://admin.constoso.com. We have created a frontend for APIs services. https://busymonk.azurefd.net.
Now we need to CNAME only api.contoso.com with busymonk.azurefd.net. Is the said domain downtime going to occur for the main domain and other subdomains?
How I should add the routing for the custom domain. Even this example got me confused. Do I need to add routing between custom domain and my backend pool, or do I need to make a backend pool of https://busymonk.azurefd.net and then add routing between api.contoso.com to busymonk.azurefd.net?
When you need only api.contoso.com with your CDN endpoint, only the subdomain api.contoso.com may have downtime.
To avoid interruption of web traffic, you could first map the temporary afdverify sub-domain. With this method, users can access your domain without interruption while the DNS mapping occurs.
Source Type Destination
afdverify.api.contoso.com CNAME afdverify.busymonk.azurefd.net
If you have verified that the afdverify subdomain has been successfully mapped to your Front Door. Then you could map the permanent custom domain. After this, you could delete the temporary afdverify subdomain CNAME record.
Once you add the custom domain for api.contoso.com with the front door. It's up to you. You only need to make sure there is a path from the frontend hosts to the backend pools via valid routing rules.
For example, to make the custom domain api.contoso.com work, you need to add a new routing rule or change existing routing rule to point to the domain api.contoso.com as the frontend hosts with a default path /* associated with it and select the existing the backend pool of your backend web app host like app service xxx.azurewebsites.net.
Hope this could help you.
Be aware that if you use the afdverify approach and enable HTTPS using an AFD managed certificate, you'll be waiting an excessive amount of time for Digicert to validate the domain for certificate provisioning (24+ hours). It appears to be a manual process on their end, and if your domain's WHOIS registrant email is not displayed b/c it's private, then you'll need to receive email at X#customdomain where X = admin, administrator, hostmaster, postmaster, or webmaster. You'll be better off opening a ticket with Microsoft support over it, they'll work directly with Digicert to get your certificate provisioned.
the company I’m working for provided me a subdomain. test.mycomp.com . I want to add it to my azure web app via custom domain.
The azure system recommends a CNAME delegation and provided me the information to enter web-zeudz-staging.azurewebsites.net in the dns management as CNAME.
After doing so and verifiying via DNS Lookup, Azure always gives me „Domain Ownership Error“. What can I do to make this work?
Is your DNS provider also a CDN provider, for example cloudflare? If so, turn off the CDN/proxy function so it's a DNS only record and try again.
If you don't have any control over the CDN function you can use txt record validation.
Create your TXT record awverify.subdomain.test.mycomp.com with value web-zeudz-staging.azurewebsites.net and validate again. It should succeed.
There's also a CNAME awverify method but you need CDN disabled for that too.
I find it strange that your company doesn't have the option to enable/disabled CDN for any given DNS entry though.