azurewebsites.net built-in certificate - azure

I have created web apps in Azure which use the built-in certificate for *.azurewebsites.net. SSL works fine here.
I have recently created another web app and the certificate it is using is MYSITE.azurewebsites.net. This certificate has a completely different chain than the other one--the root of which is not trusted on my machine.
Can anyone explain why one site would use the wildcard and the other one wouldn't? Also, why would the certificate chain be different?
(The wildcard cert has a DigiCert root, whereas the site-specific domain (MYSITE.azurewebsites.net) has a Cisco umbrella Root CA)

I wrote Azure Support an got in contact with their Azure Web App Product Group. They gave me the following message
This Cisco Umbrella certificate is not coming from Azure. You doesn’t have any SSL binding nor uploaded any certificate into your subscription.
Most likely your client machine is in a network protected by Cisco Umbrella product. Kindly contact to Cisco Umbrella product support team.
Another option to resolve this issue is to bind a custom domain and add a SSL certificate (Free or App Service or any other certificate) so that you do not use .azurewebsites.net URL.
I am providing you relevant articles which will give you all the details about adding custom domain and binding SSL to your App Service.
You can go through them once and then feel free to reach out to me if you have any questions or concerns
https://learn.microsoft.com/en-us/azure/app-service/manage-custom-dns-buy-domain -> Buy a custom domain name for your Azure App Service.
https://learn.microsoft.com/en-us/azure/app-service/app-service-web-tutorial-custom-domain -> Add custom domain to your Azure App Service.
https://learn.microsoft.com/en-us/azure/app-service/configure-ssl-certificate-> Bind SSL certificate

Related

Create App Service Managed Certificates by Azure

I want to create certification by App Service Managed Certificate.
I set these records
and it works correctly but when I want to create App Service Managed Certificates by Azure
I got a strange error
Failed to create App Service Managed Certificate for hostname. Click here for more details.
I try different CAA records and none of them works.
what should I do?
and if I want to use terraform it is stuck at creating the certificate
I use this template
Azure does not support the .ir domain.
Good news on App service managed certificate.
Yes, you heard correctly it became GA now and supports apex domain with a country code top-level domain (ccTLD).
Key Features:
Supports Apex domain.
Auto renewed.
Expired in 6 month.
Auto renew 45 days before expiration.
Automate using ARM template.
App Service Managed Certificate for apex domain will take a bit longer to create than for sub-domain because it uses a different validation method.
Not exportable.
I hope this will help you in securing your environment.
Maybe the tutorial you need is this:
map-a-cname-record
Create a free certificate
I had seen this error before, and solve it by the steps below:
Check the CNAME records. Map a subdomain to the app's default domain name needs two records: CNAME record and TXT record.
Make sure you enabled the CNAME record mapping in Azure .
Clear the records you don't need, like the CAA records, because wildcard certificatesis not support for creating a free certificate. Take care of the limitations.
It may takes a while for this configuration to take effect.
App Service Managed Certificate is still in Preview, there are some limitations with this (as of today), kindly check them below.
It's a private certificate to use if you just need to secure your www custom domain or any non-naked domain in App Service.
The free certificate is issued by DigiCert. For some top-level domains, you must explicitly allow DigiCert as a certificate issuer by creating a CAA domain record with the value: 0 issue digicert.com.
The free certificate comes with the following limitations:
Does not support wildcard certificates.
Does not support naked domains.
Is not exportable.
Is not supported on App Service Environment (ASE)
Does not support A records. For example, automatic renewal doesn't work with A records.
Kindly see the different between App Service Certificate and App Service Managed Certificate.
https://microsoft.github.io/AzureTipsAndTricks/blog/tip259.html
Checkout this documentation for more details.

Azure App Service SSL Certificate Not Trusted

https://www.ssllabs.com/ssltest/analyze.html?d=recruit.equitysim.ai
Situation:
A client needs to access our site over a secure connection but is unable to do so because of a problem with our certificate.
We purchased a wildcard certificate and set it up as per the documentation. If you notice in the provided link, our certificate is trusted.
We are using the Azure App Service to host our website on a paid level that includes custom domain and SSL support.
Problem:
According to the test, it appears that Microsoft's SSL certificate is not trusted - alternative names mismatch (See Certificate #2). We believe this to be the reason why our client is unable to access our site.
Any thoughts on the matter? We know it isn't an SNI problem because we have another site that is hosted on a VM that also requires SNI support and they can visit that site just fine.

SSL for redirected domain to Azure app service

Hello I have created one app for Azure app service test.
Let us say myapp.azurewebsites.net
I thought this is big to recall so I own my domain. Say www.xyzdomain.com
I purchased one SSL from Azure portal and bind with www.xyzdomain.com
So https://www.xyzdomain.com working.
Now my client want to use this app with some custom domain.
I did redirection to www.xyzdomain.com
Now his domain is
Let us say www.hiscustomdomain.com
So how should I proceed with this as they need SSL to secure like https://www.hiscustomdomain.com
He is asking me to raise CSR. I am using app service from Azure portal. Their is no VM.
Sorry for typo.
Thanks
Regards
Kunal
You don't need access to the server to be able to generate a CSR. You can use any computer including your own workstation. See the link below for detailed instructions to create and complete a Certificate Signing Request.
https://www.digicert.com/csr-creation-ssl-installation-iis-10.htm
Once you complete the request, export the certificate from the computer you used to generate the CSR as .pfx format, upload and bind it to you Azure Web App.
https://learn.microsoft.com/en-us/azure/app-service-web/app-service-web-tutorial-custom-ssl

Azure Custom URL with HTTPS

I have an web app on Azure with a myapp.azurewebsites.net address and have been following the guide here:
https://learn.microsoft.com/en-USazure/app-service-web/app-service-web-tutorial-custom-domain
Based on this, I have added the hostname in the app settings and it has been verified. I have also added the A Record and TXT record in my domain hosting provider based on the instructions (A Record points to the Azure website IP address) along with installing the SSL certificate for the external domain on the external host.
However when I type in the custom domain name, it goes to the page on the external host instead of the Azure website
What I would like to happen is: https://custom.domain will show the same as https://myapp.azurewebsites.net
Is this even possible ?
As far as I know, the certificate is used to tell the user(client browser) this website is secure.
Normally, there are two reasons why the browser window showed the non-secure page.
You're probably using a self-signed certificate.
You may have left out intermediate certificates when you export your certificate to the PFX file.
So if you want your custom domain doesn't show the non-secure page, you need buy a certificate from the azure or some other company.
After verifying domain ownership, then you could bind this certificate to your azure web app.
After this operation, it will work well.
More details about how to buy certificate with custom domain in the azure, you could refer to this article.
After buying the azure certificate, you could find the certificate as below image shows:
After binding the certificate well, it will not show the no-secure page in the browser.
Image 1:
Image 2:
I saw that creating the fully hosted domain also created A Records pointing to their IP address instead of Azure. Do I need to override these somehow, or how should it work? The tutorial did not show if "contoso.com" was https.
In my opinion, fully hosted domain is the hosting company creates its own web app server to hosting your web app and change the A records point to its own web app server IP address.
So you will find the custom domain show that company pages.
If you want to set the custom domain still points to the azure web app, you need change the A record's IP address as azure web app's address.
If you could find the hosting company has already create a certificate and verified your domain.
Then you could download it and upload it in the azure web app's portal.
After binding the SSL, it will work well.
If the fully hosted domain doesn't contain the certificate, you need buy the certificate by yourself again, upload it in the azure web app portal, change the A record points to your azure web app's IP address.
The problem it seems is that when using a fully hosted site, I can add an A Record but the hosting company keeps using their own A Record which I cannot change, it is part of their "uneditable settings."
Since I don't know how your hosting company's fully hosted site works.
Now, the most easily way is you connect to its support team to change the domain setting firstly, then you follow this article to buy a azure certificate and bind it.
For second option, did you mean to download the SSL from the hosting company and use it as 3rd party SSL in Azure? The A Record would still point to the hosting company right ? Also it seems I do not have an option to download the SSL either in PFX format, I can only view the certificate configuration (CSR, key, etc).
Yes, if you have permission to download the PFX format(if you don't know how to do it, please connect to your hosting company support), you could use it as third party SSL.

Windows Azure websites https

If I create an azure website let's assume: myname.azurewebsites.net, I can access this by using http (http://myname.azurewebsites.net) or https (https://myname.azurewebsites.net).
What does this mean? Did I understood it right that basically I don't need an SSL certificate as it has one by default?
I need to build a web service that needs to use SSL. Therefore do I need to buy an ssl certificate and custom domain (not important)? I don't need a custom domain and the default one works fine for me. So can I use my service over SSL provided by Azure: https://myname.azurewebsites.net (is a wildcard certificate)?
If you need to build a web service that needs to use SSL I highly suggest that you use your own domain and your own SSL certificate (buy one) if you are going in production with it. If you just test/play around - than you can safely use the default provided one.
And you are correct about default provided one - you get a (free) SSL for your azure web site as long as it is only bound to the default XXX.azurewebsites.net domain. However the certificate you get there is a wildcard certificate issued to *.azurewebsites.net. I would not use it if I have to go for a production service!
If you are to use SSL features of Azure Web Sites with your own domain and certificate, check out the Pricing and requirement pages. There are important things to note!

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