I don't know whats the correct term for it, but what I'd like is to forward users visiting domain1.com to domain2.com without changing the url in their address bar at all, ie. show contents from domain2 but without showing domain2.com in the address bar.
So for example:
Additionally, all links (
<a> tags) on domain2.com should be shown as domain1.com in the statusbar and addressbar.
It is possible without using iframes or other dirty hacks that might hurt SEO?