I'm working in a big Internet Cafe almost 4 years. Now I
hate to check its computer whether they are accessing internet or not . Now if one user want to do other things and he/she can automatically disconnect the internet or i say he/she click the button to disconnect internet. Sample,
a "first computer" is a server and attached with the modem and also a Proxy server using socks firewall.
and it is connected to the internet. The "Other Computer" is in Lan Network and connected to the "First Server" in order to access internet. Now one of the computer disconnected to the internet access but the "Other computer" will still accessing internet and the "FIrst server" still connected to the net

Talk to me....