Host headers, multiple domain names one ip address

Hi everyone, I have been having a great deal of trouble trying to find information on my specific problem, i understand how host headers work and everything but my current problem rely's on search engines.

I have quite a few websites hosted from my home server, now as an example, i have two websites, completely unrelated hosted from the same IP address, now my question is how to i get one domain name to not point to the directory of the other domain name, i have tried creating multiple sites in IIS but each site needs its own port number, and everything needs to be on port 80 for obvious reasons. I have one site, (doworkstudios[dot]com) now the home directory points to (doworkstudios[dot]com)/studio on the other hand the other website i have hosted, (joeydspizza[dot]com) points to the directory ((joeydspizza[dot]com)/joeyds. My problem is, is that when google or other search engines crawl my server they like to use which ever domain name they want, you can see these problems by googling one of the domain names. the issue is obvious because i can access the studios webpage by typing in (joeydspizza[dot]com)/studio which is a problem. I want to know, and im sure there is, a way that i could prevent this from happening. I have searched all over the web and cant seem to find anything that has helped. If someone could provide me with some insight on what to do that would be greatly appreciated.
Thanks,
Chris

Sorry but it seems that due to spamming prevention i cannot post my links for exemplary purposes so please disregard the url formatting

Hi and welcome to the forum.

The best option is to use separate websites on you server, don't just add them as folders and also set up host headers for both www and non www with the same server IP and Port (80) for all sites.

Then setup DNS on the server and add forward lookup Zones for each of the websites, again www and non www. In both the www and non www add an A record and point to the same IP address i.e. your web server.

Then on your domain host set up DNS to point to your external IP Address and on your Router point all port 80 access to your DNS Server.

Your DNS should then push any incoming requests to the web server which will then point it to the right web server based on the host header.

I don't know if this will work if you are only using forwarding from you domain host as i have only ever done it by setting up the DNS on my domain host.