For those that don't know about the Window HOSTS file, it allows you to set the IP address that goes with a host name. For example the IP address for the host name mac-forums.com is 69.20.37.125. So if you didn't want your computer to be able to access mac-forums you could redirect that host name to go to some other IP, like 0.0.0.0 which would lead it no where. Anyone know how to do that in OS X?