I use Redmine internally. When i tried to reorder an enumeration, I got a 403 error. The server log contained the following:

client denied by server configuration: /home/www/redmine/public/enumerations

This folder did not exist. I created it, owned by apache.apache, with 0755 permissions, but the 403 error persisted.

However, adding this .htaccess solved the problem:

<Limit GET POST>
  Order deny,allow
  Allow from all
  Require valid-user
</Limit>

Now I can reorder enumerations such as file types.