SSL/TLS Strong Encryption: How-To - Apache HTTP Server Version 2.5
This document is intended to get you started, and get a few things working. You are strongly encouraged to read the rest of the SSL documentation, and arrive at a deeper understanding of the material, before progressing to the advanced techniques.
How can I create an SSL server which accepts strong encryption only?
https://httpd.apache.org/docs/trunk/ssl/ssl_howto.html