Hello everybody

I recently moved my two sites to a dedicated server. I have read everywhere that when you get a dedicated ip address that means only your sites point to the ip address.
However, in my case, some unknown domain shows pointing to my ip address. Not only that, Google is indexing my site under that domain name instead of mine. My site, my content is still coming up when you click in the search results but not under my domain name.
I tried to solve that problem by moving my files to a new folder and pointing my domain to that folder.
I spoke to a representative in 1and1, the company hosting the server, and he said there is nothing that can be done just see who owns the domain and contact them. He said anyone can point their domain to any ip address they want. But what I've read everywhere says a dedicated ip address means only your site points to it.

My questions are

Has anyone had this experience, and how did you solve it
In which ways can this affect my website
How can I prevent this from happening again.

I know the best thing would be to contatc my host. However, the representative I spoke with wasn't helpful answering my questions and he seemed rather annoyed by my "ignorance". He advised me to hire someone to secure my server.

So I'm hoping to get some help from kind people here in the forums

Anyone can buy a domain name and point it at any IP address on the Internet. Using redirect method, the domain name can point to your domain, in which case the visitor's browser shows your address on arrival. If it points to http://xxx.xxx.xxx.xxx IP address, your IP address would appear in the visitor's browser, unless there is some redirect code on your server to redirect permanent to your domain.

Using the frame method, a fremeset is hosted by the domain registrar, with your pages inside the frame, and the offending domain name always showing in the visitor's browser. You can force your pages out of a frame using Javascript or server-side code.

I point a subdomain of one of my hosted sites to another site that does not belong to me, and when I do a check of my site using Google's webmaster tools, I see that there is always an error indicating that the other site has performed a redirect permanent that advises search engines of the correct address. I am basically doing a TinyURL service from my site in making a short URL for a resource on the other site.

Perhaps this information may point you in the direction you need to take to re-establish your domain's rule over its territory.

Also, since I am on shared hosting, I have no experience with a dedicated IP, and what precautions can be taken to ensure that DNS records are correctly established for your domain name.

EDIT:
Additionally, Google can be told which version of your domain you want it to track, http://example.com or http://www.example.com. If your site can be opened either way, you need to redirect permanent away from the way you don't want, and also advise Google of your preference in its webmaster tools dashboard. You can also redirect permanent away from the offending domain and advise Google of your preference.

Having a site's content displayed in both www and non-www splits your site's popularity with Google between two identical sites, with penalty added for having identical sites, so your site's rank is hurt.

It's probably a domain from whoever was using the server before you. Just because it is a dedicated server doesn't mean the IP was never used. When a client stops paying for a server, the hosting company re-images the computer, and then rents it to someone else.

It's not a big deal. Personally I would setup the domain in my control panel and then re-direct it to my website. FREEEEE traffic.

Thank you for your replies, I really appreciate it.

The reason why I wouldn't want to redirect it to my domain, though, is that this other domain is blacklisted for sending spam email in several sites. So I do not want my domain to be associated with it.

I sent them an email, let's see if it works