> Now, what could be the best way to avoid this? Now it is time for your friend (who lost the bet) to make a bet on lunches for every time he can do the trick he learned on his server, with his friend striving to set up the server to prevent this kind of problem. Peter PS: The only way to do it is to have a discretionary access list. Iow, no internet, and only allow access to a specified list of hosts, which can be large. It is worth your firend's while to make the bet I explained above ;-) _______________________________________________ http://www.piclist.com View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist