I have a apache web server running on centos .
I just would like to do such checking , to check if the ssl cert is valid via ipv6 connection .
curl
https://mydomain.com should be only connected with ipv4
just search that the command "openssl" may be can do do that , but I tried it not work .
besides , as I do not have ipv6 equipment to test , therefore , I just can test it in internal network , if possible , is there any way that I can do such test via external network ?