[evulish]

It's really pretty much impossible to 'shut down' the internet. You can disable parts of it but not the whole thing (due to the way it's designed...). Well, you _can_ take down the entire thing, but you have to get to every computer...and that's pretty much impossible.

To do as much damage as possible, take down the largest bandwidth providers (which is not simple...since the normal way to take them down is to flood their servers...some of the largest BW providers transfer multiple tb/s Also the main DNS servers (which, I guess, won't really affect it too much since most ISP's run their own cached DNS servers that update).

Simply, there is no way to really take down the entire thing. Yes, it's insanely simple to take down sites. Anyone who wants to be jailbait and has access to a *nix machine can pretty much flood any site they wanted.