hi. right now we've got two servers hosting one site each. i need to put one of the websites (the one that is being redesigned) on to the other box permanently. the website that is being redesigned is configured so that once a request for the site comes to the server, the server redirects that request to the other website. basically both domains are pointing to the same place as far as the user is concerned. however in actuality one box redirects to the other. it was suggested to me by customer service at earthlink that i change the A record of the site that is down to the same IP address as the site that is up. effectively making it true that both domains are both pointing to the same ip address. this sounds correct and fine. the problem i have though is that i don't know how to setup IIS so that when the time comes to bring the new site up, the ONE ip address can point to two seperate websites on the same box. he said that the server will know which one is being requested based on the headers of the request. again, that's fine and dandy, except that i don't know how to configure iis to understand this. can someone please instruct me or lead me to a document that gives step-by-step instructions on how to do this? everything i've found regarding this assumes too much. thanks a lot. chris.