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.
Challenges crafted by iximiuz Labs to help you master DevOps and Server Side topics.
A systemd-managed worker process starts cleanly, prints a few heartbeat lines, then silently vanishes - over and over again. Diagnose why the process keeps dying and stabilize the service.
Turn a plain HTTP server binary into a proper systemd-managed service that starts on boot and is automatically restarted when it crashes.
Discover that a simple mount command doesn't survive a reboot and learn how to make mount points persistent using /etc/fstab or systemd.
Run a multi-container Docker Compose application limiting its total CPU and memory usage without specifying the individual container's limits.
Learn how to fine-tune the container's cgroup to make the container exit when one of its processes runs out of memory.
