Forwarding a Domain to another Site

If you just want to forward a single DNS entry then you can set up a CNAME record in DNS from www.domain1.com to www.domain2.com. But doing that, you would need to have the first domain parked against the second domain on the server hosting the second domain.

Alternatively, you could just setup a full account for the first domain and create a .htaccess redirect in the public_html directory and forward it that way.