Zoom is down 🎉

And then you have apps that will use their own DNS silently instead of the NS you point them to...

Dominic Nolan Sebastian. The slippery two-faced bastard looks at the url people type in their browser and then connects their internet to the internet of the url they typed in; just like old phone operators.

But if too many people try to type in the same url at a time, Dominic gets upset and acts like a dick, preventing anyone from accessing that site. Then people call him Dick Dominic Nolan Sebastian, or DDNS.

When you access something on the internet, you are accessing something on someone else's computer.

Computers have (effectively) postal addresses. When you want to access content on another computer, you type in its address.

But computer addresses don't look like "fedia.io" they look like "123.122.1.111".

When you type "fedia.io" your computer needs to go and ask what the computer's address is.

That's DNS. The Domain Name System. The system for finding the computer address from a domain name.

The above is very simplified and doesn't cover all scenarios, but I hope it's enough to get the idea.

DeNial of Service