An Intro to Azure DNS

In this lecture, you’ll be introduced to Azure DNS, which is a hosting service for DNS domains that leverages the Microsoft Azure infrastructure for name resolution. You’ll learn how this service enables you to manage your DNS records using the same credentials, APIs, tools, and billing processes you use for other Azure services.

The content will cover the unique features of Azure DNS, such as its global network of name servers which ensures fast performance and high availability for your hosted domain. You’ll also explore the security features inherent in Azure based on the Azure Resource Manager, like Azure Role-Based Access Control (RBAC), activity logs, and resource locking that enhance the safety and management of your DNS records.

An important point that will be clarified is that Azure DNS does not support DNSSEC, which is secure DNS, so if this is a requirement for your DNS zones, you would need to look at third-party hosting providers.

Practicality and ease of use are highlighted in this lecture, showing you that Azure DNS can manage DNS records not just for Azure services but also for external resources. The integration of Azure DNS with the Azure portal is demonstrated, along with management tools such as Azure PowerShell, Azure CLI, and options for automated DNS management through REST API or SDKs.

Furthermore, you’ll discover how Azure DNS supports private DNS domains, allowing for custom domain names within private virtual networks, and you’ll learn about alias record sets, which are used to link custom domain names to Azure resources like public IP addresses, Traffic Manager profiles, or CDN endpoints.

Finally, the lecture includes a visual representation to help you understand how Azure DNS resolves DNS queries. This overview is designed to equip you with the knowledge to explain what Azure DNS is and answer basic questions related to it.