How to rewrite all subdomains except one

Question

Right now my rewrite rule forwards all subdomains except chat.auricle.fm to the root:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^.*\.auricle\.fm [NC]
RewriteRule ^(.*)$ http://auricle.fm/$1 [L,R=301]

How can I change it so that it forwards all subdomains except for chat.auricle.fm?

Answer 1

I've almost never done any apache configuration, but it took me 2 minutes to find this:

By default successive RewriteCond directives are linked by a logical AND. There is an optional modifier, [OR], that allows you to chain the next RewriteCond with a logical OR.

This should do the trick:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^.*\.auricle\.fm [NC]
RewriteCond %{HTTP_HOST} !=chat.auricle.fm [NC]
RewriteRule ^(.*)$ http://auricle.fm/$1 [L,R=301]