How to install SSL Certificates on Apache for CentOS or Fedora Servers

Today SSL Certificates are very important for any website to look secure and safe browsing website. Not only users will like but even Google is considering SSL based websites for ranking, We personally use SSL certificates from ssls.com and ssl2buy.com , There are various providers offering 90 days free SSL certificates which you can use it for testing purpose, some are even offering free certificates for 1 year but do not trust those as they may not be compatible with browsers. So let's see How...