Explore CoreDNS configurations for hybrid and multi-cloud environments in this 45-minute conference talk. Learn how to serve DNS records from cloud vendors like AWS Route53 and GCP Cloud DNS, implement DNS over TLS and gRPC for secure communications, manage zone data with record shuffling for workload rebalancing, and deploy CoreDNS across multiple Kubernetes clusters in multi-cloud setups for effective service discovery. Gain insights into extending CoreDNS functionality for complex scenarios, showcasing its flexibility and brevity in solving real-world problems. Ideal for those familiar with basic CoreDNS configurations looking to expand their knowledge.