Let's say you're trying to get a CMS up and going. And say you're supposed to find a Start Page at "www.yourdomain.com/start" But you don't have a domain name yet. You only have an IP address (yourIPaddress). Apache is visibly running at yourIPaddress. So you look in "yourIPaddress/start" And you don't find anything there, just a 404 page. And the person who installed it for you tells you: "In Apache, yourdomain/start is not the same thing as yourIP/start. Please read up on Apache server configuration to figure this out. And that's all the help I can give." My question is: what concepts (re: Apache configuration) should I read up on so that I can find the start page? Thoughts?