Check SSL server certificate contents
by Wolfram Saringer (2018-06-15)
last change: 2018-06-15
echo | openssl s_client -showcerts -servername <server name> -connect <host name>:443 2>/dev/null | openssl x509 -inform pem
-noout -text
server name is used to add SNI compatible headers to the request. host name is the name of the machine and can be the same
as server name.