ELI5: Explain Like I'm 5

Distributed denial-of-service attacks on root nameservers

Imagine a really big sticker book with lots of pages. Each page has a different sticker on it, and each sticker represents a different website that you can go to on the internet.

Now imagine that a lot of people want to go to one specific website, but the page in the sticker book for that website is really small and can only hold a few people at once. So, all those people start trying to squeeze onto that one page, and nobody else can get in or out because the page is just completely full.

That's basically what a distributed denial-of-service (DDoS) attack on a root nameserver is like. A root nameserver is like the big sticker book that has all the pages with all the website stickers on it. When someone types in a website address in their web browser, the browser needs to know which page in the book has the sticker for that website. So, it asks one of the root nameservers, and the nameserver tells the browser which page to go to.

But if lots of people start sending requests to the same root nameserver all at once, the nameserver can get overwhelmed and stop working. This is what a DDoS attack does - it bombards a nameserver with so many requests that it can't handle them all, and then nobody can access any of the websites that rely on that nameserver.

It's like if a lot of people were trying to get into a store through one entrance, and they all tried to push through the door at once. Eventually the door would get stuck and nobody could get in or out.

DDoS attacks on root nameservers are a big deal because they can disrupt access to huge portions of the internet. It's like if all the stores in a whole city suddenly closed because everyone was trying to get into one store at once. That's why people work really hard to try to prevent these kinds of attacks from happening.