DNS 101 Miniseries #3 - How DNS actually works ... walking the tree
The Domain Name System (DNS) is a core part of most applications and IT systems. If you work as a developer, engineer, solutions architect, devops engineer, security engineer or in any other IT role - you HAVE to understand DNS. DNS uses a fairly complex hierarchical structure to allow scaling and delegation. In this series of videos I will step you through the functionality of DNS from what it does, why it's needed, how it works and elaborate on many of the core pieces of functionality.
In this video I will step through how the DNS hierarchy works including an example of walking the tree .... from ROOT, to TLD, to Domain to Authoritative Results.