Hi, On Thu, Jul 23, 2009 at 10:46, David Hláčik<david at hlacik.eu> wrote: > RewriteCond %{HTTP_HOST} extensions.polarion.com > RewriteRule / http://extensions.polarion.com/polarion/extensions/ Usually those would be regexps, so the right syntax for what you want would be something like: RewriteCond %{HTTP_HOST} =extensions.polarion.com RewriteRule ^/$ http://extensions.polarion.com/polarion/extensions/ The "=" in RewriteCond forces it to treat the second parameter as a string (if that does not work for you, try ^extensions\.polarion\.com$ instead.) In the second rule, you want to redirect only requests to /, so you need to anchor it with ^/$. And don't forget that you will also need: RewriteEngine on Other than that, it should work fine. But I suggest you test these rules in a test environment first before commiting them to your production machine. HTH, Filipe