It shouldn't matter if they are on the same server, just as long as they are set up as separate virtual hosts. If that is not the case (the separate Virtual Hosts that is), then you could use PHP (or any other supported server side language) and have something like the following in your index page (or all the pages if you want):
Code:
<?php
if (strstr($_SERVER['HTTP_HOST'], 'domain.com.cn')) {
header('Location: http://www.domain.com');
}
?>
Not sure if you could do something equivalent using htaccess.
Hope this helps.
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