Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
1,213 questions
SSL Error Mismatch Addresses
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kioskSystem
0
Reputation points
I have one application that suddenly has this SSL Error Mismatch Addresses. The SSL was installed and working well for 10 months. Just suddenly having this issue. Is there anything to check in Azure App Gateway Listener or how to fix this? Thanks.
Azure Application Gateway
{count} votes
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KapilAnanth-MSFT 49,536 Reputation points Microsoft Employee Moderator2023-12-15T12:15:36.1833333+00:00 Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
From the error message, it looks the issue is from the certificate end only and not from the Listener.
The URL (host name of HTTP request) and the CN of the certificates are not matching.
- May I ask what browser are you using?
- Is the issue reproducible across browsers?
- Such as Chrome, Edge, Firefox
- By any chance, are you accessing the site
- I believe the same certificate would be used to access the backend (assuming you have end to end SSL)
- In that case, can you bypass the App gateway and directly access the backend and see if that works
- Can you confirm if the domain name of your site and the CN are matching?
- Click "View Certificates" and check the certificate chain.
Cheers,
Kapil
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kioskSystem 0 Reputation points
2023-12-18T02:21:54.1266667+00:00 All browsers shows error. How to bypass App gateway? Access directly via gateway ip?
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KapilAnanth-MSFT 49,536 Reputation points Microsoft Employee Moderator
2023-12-18T04:27:19.8066667+00:00 What is your backend (the actual web server) ?
- Is it a VM or App Service ?
- Try to access the backend directly and see if the same error shows up.
- Can you confirm if the domain name of your site and the CN are matching?
- Click "View Certificates" and check the certificate chain.
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- The above details, URL and CN should match.
Cheers,
Kapil
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KapilAnanth-MSFT 49,536 Reputation points Microsoft Employee Moderator
2023-12-20T05:44:10.8666667+00:00 May I know if you got a chance to review my previous comment?
Please let me know if you are facing any challenges or if there are any follow-up questions, I shall be glad to address them.
Thanks,
Kapil
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KapilAnanth-MSFT 49,536 Reputation points Microsoft Employee Moderator
2023-12-21T10:09:51.0933333+00:00 Reaching out to check if there are any questions on this.
Please let us know if we can be of any further assistance here.
Thanks,
Kapil
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