Dedicated to those people who insist that http://www.example.com and http://example.com must point to the same thing. Like I’ve said before, they are not the same thing, they are supposed to be equal only in the eyes of the inexperienced, and yes they are one more place for configuration errors (and user confusion) to emerge. Example (valid as of 2011/07/02 12:24):
Directory Listing Denied
This Virtual Directory does not allow contents to be listed.