I would like to host multiple websites on a virtual private server. However, these websites should not be connected to each other from a search engines point of view.
Could I do this by just using unique IP's for each website, or are there any other links that show that the websites are connected (other than fact that they would all be hosted by the same company)?
I am also concerned that the sites would have a similar IP and could be linked to each other because of their "IP neighbourhood".

Thanks for any input!