I have my main domain hosted at godaddy. Then I bought my hosting with 1and1.com which came with a free domain. I pointed my main domain at godaddy to point to 1and1. now, JustGpt.com (main domain) and GptReview.org go to the same site, which is what I want. I always want JustGpt.com to show in the browser no matter what domain they type in. How do I do that? this goes for my simple machines forums as well. thanks.
It's not complicated if you use Godaddy. You just select forwarding, and then you will have the option to mask it. It will only work though if visitors enter via that domain, and it won't show file names.