Understanding Network things: part 3 DNS

Hi,
I've got a secret for you, since several years. I'm a developer and I'm a mess in undestanding network things! :'(

It's hard to not understanding things that anyone seems to understand and understanding network concepts can be difficult or time-consuming, specially for developers. That the reason I started to create sketchnotes about Network concepts. I think it could be a good way, more visual, to explain it.

In this third article, we will see DNS concepts.
Is it always a DNS problem? ^^

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

If you are interested, I already published sketchnotes about Kubernetes, Docker and Istio.