Problem detecting empty REQUEST_URI with Apache mod_rewrite

Question

I am running Apache witha redirect rule like this:

RewriteCond %{HTTP_HOST} ^1st-domain\\.com
RewriteRule ^(.*)$ http://2nd-domain.com$1 [R=permanent,L]
         


        

Answer 1

Your rules redirects request with empty QUERY_STRING.

For empty request_uri, you can use

RewriteCond %{HTTP_HOST} ^1st-domain\.com$
RewriteRule ^$ http://3rd-domain.com$1 [R=permanent,L]

RewriteCond %{HTTP_HOST} ^1st-domain\.com
RewriteRule ^(.*)$ http://2nd-domain.com$1 [R=permanent,L]

The first rule will first match , then tests for (which can't be now since we've processed it before)