I've done some light research, but anyone have any ideas about how to permanently disable the Internet everywhere?
Answer by Steven Potter
Sorry, I couldn't resist...
Edit: I put in a better youtube video with more context.
Answer by Roberto
"permanently" is a long time. If you would be satisfied with something rather less grandiose hmm... say if one could discover a couple zero-days for NSD and BIND that could be converted into worms à la SQL Slammer that would be a real nightmare. Or perhaps if you could find some other shared vulnerability in the root nameservers.
Just thinking out loud, nothing very practical. ARPANET was originally designed to be pretty hardy, there were even rumors that the original design goal was a system that could withstand a nuclear strike.
Answer by Dan
According to the article I just linked to, an EMP from a high-altitude nuclear blast or a powerful solar storm could potentially knock the Internet offline and fry enough electronics to make it difficult to bring back online.