How to check TLS-Version?

Question

How to check TLS-Version?

Michael Schmidt 46

Hi,

I've got a mail saying "If you have resources that interact with Azure services and still use TLS 1.1 or earlier, transition them to TLS 1.2 or later by 31 October 2024"

Where do I check which TLS-Version I use?

Bye

Michael

v-vvellanki-MSFT 305 Reputation points Microsoft Vendor

2023-11-14T05:19:40.44+00:00

Hi @Michael Schmidt ,

Any update on the issue?

Just checking in to see if you got a chance to see previous response.

If the suggested response helped you resolve your issue, please 'Accept as answer', so that it can help others in the community looking for help on similar topics.

v-vvellanki-MSFT 305 Reputation points Microsoft Vendor

2023-11-14T05:19:40.44+00:00

Hi @Michael Schmidt ,

Any update on the issue?

Just checking in to see if you got a chance to see previous response.

If the suggested response helped you resolve your issue, please 'Accept as answer', so that it can help others in the community looking for help on similar topics.

Answer 1

Hi - Thanks for the question -

If you're hosting using Azure service you would need to check this on a per resource basis. For many Az resources this is a simple as checking in the Azure portal (as one example, API Management has a protocols and ciphers page which clearly shows this type of info). That being said , I can check if there's a list of services that will deprecate older TLS versions.

In addition , and this may be useful if you're hosting your own code , you can also check from the outside in if you have external endpoints (for example an external website you're hosting) using tools like SSL Labs https://www.ssllabs.com/ssltest which will give you a full report including cipher suites used

The notification carried some more detail on what's happening here https://learn.microsoft.com/en-us/security/engineering/solving-tls1-problem

How to check TLS-Version?

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