Apache - allowing requests only from certain referrers?

How can I set up a page so that it can be requested from specific
other pages?
Assume I have page1.html.
I don't want people to be able to type http://mydomain1.com/page1.html
into the browser and be able to access my page. If they do that, I
want to redirect them to http://mydomain2.com/page1.html.... Then on
mydomain2.com/page1.html there will be a link to
http://mydomain1.com/page1.html, and that should be the only way to
access mydomain1.com/page1.html...?

I'm running Apache on Windows 2000.

Thanks!

Ha, I found out...It's called URL Rewriting

stefan@dragolov.com (Stefan) wrote in message news:<89543c7c.0401091559.277e0d2c@posting.google. com>...
> How can I set up a page so that it can be requested from specific
> other pages?
> Assume I have page1.html.
> I don't want people to be able to type http://mydomain1.com/page1.html
> into the browser and be able to access my page. If they do that, I
> want to redirect them to http://mydomain2.com/page1.html.... Then on
> mydomain2.com/page1.html there will be a link to
> http://mydomain1.com/page1.html, and that should be the only way to
> access mydomain1.com/page1.html...?
>
> I'm running Apache on Windows 2000.
>
> Thanks!