On Wed, Mar 11, 2009 at 4:35 AM, Charles Sprickman <[email protected]> wrote:
>
>
> What you need to do is check what's in the "Host" header, and if it
>> doesn't match the ServerName send a redirect.
>>
>> RewriteEngine On
>> RewriteCond %{HTTP_HOST} !^www\.foo\.com [NC]
>> RewriteCond %{HTTP_HOST} !=""
>> RewriteRule ^/(.*) http://www.foo.com/$1 [L,R=301]
>>
>
> Excellent. It may be a challenge for me to incorporate this into the
> search-engine-friendly rewrite rules that Joomla uses, but I'll give it a
> spin on a staging box and see what happens.
>
> What kind of performance impact, in general, do simple rewrites like this
> impose on a busy server?
>
In my experience the performance impact of a few simple rewrite rules is
minimal.
Krist
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