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.
Learn how Linux's binfmt_misc mechanism and QEMU user-space emulation allow transparent execution of binaries compiled for foreign CPU architectures.
Practice one of the key Linux skills - installing packages from remote repositories.
Practice one of the key Linux skills - installing packages from remote repositories.
Practice basic tar operations: extract an archive, create a compressed backup, and install software from a release tarball using the 'tar' command.
Practice pausing (freeze) and resuming (thaw) a resource-hungry Linux process using the cgroup v2 freezer mechanism.
Practice using UNIX signals with containers for controlling application behavior: Send a SIGUSR1 to a containerized app to trigger its memory usage reporting.
Practice mapping existing directories to new paths using Linux bind mounts and see the core tech behind container volumes in action.
Discover why host environment variables aren't visible to containers and how to properly pass them to containerized applications in Docker.
Learn when to use the -t flag in 'docker run' to allocate a pseudo-TTY (terminal) for containers, enabling terminal-specific features like cursor control, colors, and signal handling.
Practice formatting drives in Linux: identify the drive, format it as ext4, mount it, and verify the filesystem works as expected.
