I would like www.example.com and example.com to be interchangeable. I am using mod_vhost for hosting multiple domains right now. Also, I need subdomains that arent www to work. right now my conf sends sub.example.com to /home/sub.example.com i want it to continue doing that for everything but www. How do others do this?

http://webhostingtalk.com/showthread.php?p=3757561

Does this help?

is that php? if so, i really need it to be system wide, thus in the apache conf