# vim: filetype=apache 
<VirtualHost *>
ServerName redirector.wikipedia.org
ServerAlias *.wikipedia.org

    RewriteEngine On

    RewriteMap lowercase int:tolower
    RewriteCond %{HTTP_HOST} ^www\.([^\.]+)\.wikipedia\.org
    RewriteRule ^(.+) ${lowercase:%{HTTP_HOST}}$1 [C]
    RewriteRule ^www\.([^\.]+)\.wikipedia\.org(.*)$ http://$1.wikipedia.org$2 [R=301,L]

</VirtualHost>