Some websites defaulting to first account created


Nov 24, 2003
California, USA
I'm having a problem that some websites are defaulting to the first account. A majority of these are simply websites that have had their DNS altered, but havn't had their accounts moved/created for them on the new server yet. I know how to resolve the situation so that they show their own sites.

But what I want to know is how do I change it so that in the future, websites that have their DNS altered to my server IP will default to my own website, instead of the first account created. Please advise.