Web.config file

VS 2008, Vb.Net

Why is it I can trace an Ip address and see the web.config file on the server? 

What am I doing wrong?

 When I move a site to our production server, should I not be moving the web.config file too?

I tried removing it and of course I got errors when I tried to bring up the application. So what should be done? Especially since I use it to store alias variables.

thanks