Options -Indexes
<FilesMatch "^(config\.php|db\.php|auth\.php)$">
  Require all denied
</FilesMatch>
<IfModule mod_headers.c>
  Header set X-Content-Type-Options "nosniff"
  Header set X-Frame-Options "SAMEORIGIN"
  Header set Referrer-Policy "same-origin"
</IfModule>
