Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
Learn how to format an empty drive with the ext4 filesystem in Linux and verify it works correctly.
Learn how to mount a drive in Linux by discovering an unmounted device with a hidden flag on it.
Hone your Linux networking skills by setting up routing that lets two isolated private networks communicate.
Practice installing Docker on Fedora and learn about the different components that make up Docker Engine.
Practice installing Docker on Debian and learn about the different components that make up Docker Engine.
Practice installing Docker on Ubuntu and learn about the different components that make up Docker Engine.
Can you resolve issues with a Node.js container's termination process to ensure graceful shutdown on 'docker stop'?
Can you make a container exit gracefully after the 'docker stop' command while preserving its extensible entrypoint mechanism?
This challenge focuses on debugging memory usage issues in a Go application deployed in a Kubernetes cluster. The goal is to ensure the application can handle moderate traffic without crashing, even when it runs with significantly constrained memory resources.