Challenges

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.

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Official Collection

Challenges crafted by iximiuz Labs to help you master DevOps and Server Side topics.

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Easy, on Linux

Create a systemd Service for a Long-Running Process

by Ivan Velichko

Turn a plain HTTP server binary into a proper systemd-managed service that starts on boot and is automatically restarted when it crashes.

systemd

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Medium, on Linux

Make a Filesystem Mount Survive a Reboot

by Ivan Velichko

Discover that a simple mount command doesn't survive a reboot and learn how to make mount points persistent using /etc/fstab or systemd.

storage mount filesystem fstab systemd

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Medium, on Containers, Linux

Limit CPU and Memory Usage of a Docker Compose Application

by Ivan Velichko

Run a multi-container Docker Compose application limiting its total CPU and memory usage without specifying the individual container's limits.

docker docker-compose cgroups systemd

This challenge was prepared for you by the iximiuz Labs team.

Challenge, Medium, on Containers, Linux

Make the Container Exit When One of Its Processes Runs Out of Memory

by Ivan Velichko

Learn how to fine-tune the container's cgroup to make the container exit when one of its processes runs out of memory.

docker cgroups systemd oom