Redirect parked domain to main domain with parameter

Question

I am trying to make a simple url shortening service. I've two domains, one is parked (x.co) another is main (maindomain.com) domain. I want to make a redirection for parked domain in htaccess like this:

http://x.co/abc
will be redirected to:
http://maindomain.com/redirect.php?code=abc

I've tried a lot of different rules but none of them worked. For example, I've tried this:

RewriteCond %{HTTP_HOST} ^x.co$ [NC] 
RewriteRule ^(.*)$ http://maindomain.com/redirect.php?code=$1 [R=301,L]

So, can anyone help me? Thanks...

Answer 1

Try this rule in document root of x.co :

RewriteCond %{HTTP_HOST} ^x\.co$ [NC] 
RewriteRule ^ http://maindomain.com/redirect.php?code=%{REQUEST_URI} [R=301,L,NE]