How I do test remote secure web server

The s_client and s_server options provide a way to launch SSL-enabled command-line clients and servers. There are other examples of their use scattered around this document, but this section is dedicated solely to them.

Connecting to a different type of SSL-enabled server is essentially the same operation as outlined above. As of the date of this writing, openssl only supports command-line TLS with SMTP servers, so you have to use straightforward SSL connections with any other protocol.

openssl s_client -connect remote_server:443 -CApath /etc/httpd/cacerts -cert /etc/httpd/conf/ssl.crt/cert.pem -key /etc/httpd/conf/ssl.key/privkey.pem -msg

OR

openssl s_client -connect remote_sever:443  -CAfile /etc/httpd/conf/ssl.crt/RootCERT.pem -cert /etc/httpd/conf/ssl.crt/cert.pem -key /etc/httpd/conf/ssl.key/privkey.pem -msg