DirectoryIndex index.php

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /

  RewriteRule ^sitemap\.xml$ sitemap.php [L]

  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule . index.php [L,QSA]
</IfModule>
