DNS Fundamentals in AWS Routing

Behind every successful website or cloud application lies a robust domain name system that directs users to the right destination. Understanding how DNS works within the AWS ecosystem is essential for any aspiring cloud practitioner or web developer. This text-only course guides you from the absolute basics of domain registration to configuring routing mechanisms in AWS. You will gain the confidence to manage domain records, troubleshoot resolution issues, and optimize how traffic flows to your cloud resources. What you'll learn: Understand the foundational concepts of DNS, including how name servers, resolvers, and domain registrars interact; Configure essential DNS record types such as A, AAAA, CNAME, and AWS-specific Alias records; Explore how AWS routing policies manage traffic using failover, latency, and geographic rules; Apply best practices for secure DNS management and modern DNSSEC basics; Practice troubleshooting common resolution errors through step-by-step written scenarios. You will start by mastering key terminology and the journey of a DNS query before moving into practical configuration patterns for AWS infrastructure. This course is designed for absolute beginners to cloud networking or AWS administration, with no prior networking experience required. Start reading today to demystify cloud routing and take control of your domain configurations.