I have a website http://www.domain1.com. Is it possible to register a second domain, http://www.domain2.com, and have it point to http://www.domain1.com/SecondDomainHere? If someone types domain2.com, I don't want them to be able to just remove the /SecondDomainHere part and be at the main website. This is for my personal use, not a business appplication, and I'd prefer to do this for awhile before getting another hosting account.
Is this technically possible? Is this done and is it acceptable? What is this called?