I am setting up a website using the Joomla CMS. In the Global configuration of Joomla, there is an option called "Force SSL." I would like to set this to "administrator only" so that administrator authentication would be more secure. However, simply setting that option causes the administration page to become inaccessible. I believe the problem is that the server may not yet be set up for SSL communication. I would like to know what steps need to be taken so that I can enable this setting in Joomla.
Possibly useful information:
The server is a virtual dedicated server hosted by godaddy.
Running CentOS 5, PHP 5, MySQL 5, Joomla 1.5
iptables is already open for port 443