Hub-and-spoke is one of the most common Azure networking patterns and one of the easiest to get “mostly right” while still shipping a design that breaks under real traffic, real DNS needs, and real security requirements. This guide is a practical checklist you can use to validate (or design) a hub-and-spoke network in Azure, with the failure points called out explicitly: DNS, routing, NSGs, and firewalls. If you’re building this pattern as part of a real Azure network engineering role, thi...