It's unbelievable how in just 2 decades computers become indispensable on our lives. Computers turn ourselves dependents of our own digital resources after a click on the < Save > button to store our data.

If you use to work on corporative environments where some internal or external DNS's are changes frequently, and like me, migrated from Windows to MacOS, it's possible that you need to update your DNS local cache and you haven't any idea of how to.