SSL cipher problem

I have setup SSL on a server using YUM to install the relevant module

I have created a key and obtained and installed a certificate. The Key was created using 2048 bit encryption

openssl genrsa -out ca.key 2048

on pen testing it was identified that my ciphers are set to low. How do I configure it to use a minimum of 128 bit?

Hi, read this:
https://httpd.apache.org/docs/2.0/ssl/ssl_howto.html
And afterwards use this tool to troubleshoot your setup: