The article provides a comprehensive guide to debugging Docker containers, focusing on the unique challenges posed by their ephemeral nature, isolated environments, and limited visibility. It outlines essential Docker commands such as `docker ps`, `docker logs`, `docker exec`, `docker attach`, `docker stats`, `docker top`, and networking commands like `docker network inspect`, `docker exec -it ping`, and `docker exec -it nc`. These commands help developers inspect container status and logs, access container shells, examine resource usage, and debug network connectivity. The guide includes practical scenarios to demonstrate the application of these commands in troubleshooting common Docker-related issues, emphasizing a systematic approach to resolving problems in containerized applications. The article also mentions additional resources, such as the free "Docker Fundamentals" ebook, for those interested in further learning about Docker.