Dive deep into CoreDNS, the default cluster DNS of Kubernetes in the cloud native ecosystem, in this comprehensive conference talk. Explore the extensible and flexible DNS server's unique plugin-based architecture, which allows for easy addition of new features. Learn about CoreDNS's flexibility through its rich integrations in the cloud native ecosystem, user-friendly Corefile configurations, and the inherent scalability of DNS. Discover how to utilize CoreDNS across hybrid and multi-cloud environments, integrating with various cloud vendor services at scale. Get hands-on experience by learning to write a complete CoreDNS plugin for service discovery in Golang. Gain insights into the current state of CoreDNS and its future roadmap, understanding how this powerful tool scales the Internet through DNS.