I've developed an in-house application that does not have internet access.

I want to be able to just have a user log in and just see the sitesname.net and no URL past that.

Currently they see a long URL with directories, pages & `$_GET` values based on the session and the functions they are doing. I've noticed that a few of them have made book marks with the `$_GET` values intact so they are doing things that should not be able to be done.

I'd like to be able to just hide the directories, pages & `$_GET` values from them.

Is there an accepted way to do this?

The app in built with `php`, `mysql` on an `apache` server.