Originally Posted by aahiqmir
Thank You for your response..
I am a newbie and am not much skilled in linux......can you please give me some other method like configuring some files etc...
even configuring an authentication server really comes down to editing files when you get down to it, other then some sort of software designed for said function there really isn't much you can do
a quick and dirty method perhaps would be to edit /etc/network/interfaces so the interfaces do not come up by default then make sure that only root has permission to bring the network online period but that would reacquire constant intervention so it would not be practical for your purposes,
another quick and dirty way would be to configure a firewall to block all outgoing traffic but again that would require either your intervention or giving someone else privileges to temporarily disable the firewall
as you can see, the easy solution is often the worst solution, i wish you luck, perhaps this would be a good opportunity for you to learn a new trick