How do i validate different versions of tls are supported on my website using openssl?



  • Man page for s_client

      -connect host:port
    	   This specifies the host and optional port to connect to. It is
    	   possible to select the host and port using the optional target
    	   positional argument instead.	 If neither this nor the target
    	   positional argument are specified then an attempt is made to
    	   connect to the local host on port 4433.
    

    For TLS1.0

    $ openssl s_client -connect yoururl.com:443 –tls1
    

    For TLS1.1

    $ openssl s_client -connect yoururl.com:443 –tls1_1
    

    For TLS1.2

    $ openssl s_client -connect yoururl.com:443 –tls1_2
    

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