Disable requirement for administrative privilege on a particular application.
I am running Fedora 2 on a laptop. Two users exist, beyond the administrator. When a user tries to launch kppp, he is told he lacks "sufficient administrative privileges" and asked for the root password. I want these two users to be able to access the modem without knowing the root password, that is one should not have to be a superuser to use kppp. As administrator, I've tried checking "execute" in the permissions of kppp for these two users but nothing changes. I've heard the solution is to create a group called "dialout" and place those users who have access to the modem in it, but how does this solve the problem of making use of the modem something a non-superuser can do?
Thanks in advance for all suggestions.