I was recently at an event listening to representatives of ICANN and CloudFlare speak on security with DNS and it occurred to me that very few of us really understand or appreciate its nuances. It also so happens that the past 5 years have brought forward a lot of curious, and interesting, developments in one of the last untouched founding components of the internet.
The Domain Name System (DNS) is comprised of a number of different Domain Name Servers (DNS). I wrote an article that offers an illustration and better understanding of how the entire DNS ecosystem works together. There is an even cooler illustration explaining how DNS works.