This depends on your host, what type of host cgi or apache, and what kind of control you have over it. If you can change it yourself is a possibility, if not what the host is willing to do.

My site which I am currently not allowed to advertise shows some of this. See my profile and site for .htaccess / php.ini for a basic concept. Let me know if you have any questions or if I can help.

gameutopia