Practical checklist to validate Azure hub-and-spoke network design across DNS, routing, and security

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Hub-and-spoke is among the most widely used Azure networking patterns, but it is frequently implemented with subtle gaps in DNS, routing, NSGs, and firewall configuration that only surface under real-world conditions. A detailed technical checklist has been published to help engineers validate or build production-grade hub-and-spoke designs on Azure. The guide highlights that spoke-to-spoke communication is not automatic through the hub and requires explicit routing and inspection rules to function correctly. DNS is flagged as a common failure point, particularly when private endpoints are used without complete zone links across all relevant virtual networks. The checklist also covers firewall placement, asymmetric routing risks, and NSG patterns, and aligns with skills tested in Microsoft's AZ-700 Azure Network Engineer certification.

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