Multisite CI installations - HOW TO

[eluser]developer10[/eluser]
Hello there,

I want to do what the topci says but dont know where to start. I read some topics here about it but still dont get it.

I want to be able to put a single CI installation on my server and then multiplicate application folder, upload several applications and
have http://example.com pointing to application1, http://example2.com pointing to application2 etc.

All of these should work independently whenever someone visits one of them.

So, is it possible and if so, how can it be done?