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Test TLS version

Created by dave. Last edited by dave, 14 days ago. Viewed 35 times. #3
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(2021-10-06)

Problem

Does this device support TLS v1.0 (or 1.1 or 1.2 or 1.3)

Solution

$ openssl s_client -connect system:port -tls1
$ openssl s_client -connect system:port -tls1_1
$ openssl s_client -connect system:port -tls1_2
$ openssl s_client -connect system:port -tls1_3

If you get cert details back from any of those, the device does support the referenced TLS version.

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