Smile How do I make Linux server urls case insensitive?

When the user types into the address bar: Website Hosting - Mysite.com the user will get an error because linux server urls are case sensitive and the url is Website Hosting - Mysite.com. How would I make it so the urls are case insensitive. I've been trying a PHP script but it doesn't seem to be working (It just takes me to the index directory of the folder and gives a 403 forbiden error.) Is there any code I can place on my site that will make the urls case insensitive?

Thanks.