Microsoft recently announced support for the Azure DevOps service tag. In this article, I will explain how the Azure DevOps service tags work and why they are helpful.

What is a service tag?

A service tag represents a group of IP address prefixes from a given Azure service. Microsoft manages the address prefixes encompassed by the service tag. Microsoft automatically updates the service tag as addresses change, minimizing the complexity of frequent updates to network security rules. This mechanism simplifies the maintenance and management of network access control on network security groups, Azure firewalls, and on-premises firewalls.

Azure service tags and DevOps

Azure DevOps is a cloud service distributed in multiple locations all over the world. When new Azure DevOps systems are added or migrated, their existing IP addresses change. To avoid malfunctions or service interruptions, users must update their on-premises firewall or Azure network security group manually.

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