Challenges | iximiuz Labs

Find challenges matching your interests...

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, Medium, on Linux

Make a Filesystem Mount Survive a Reboot

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, Easy, on Linux

Run an ARM64 Binary on an AMD64 Machine Using QEMU Emulation

by Ivan Velichko

Learn how Linux's binfmt_misc mechanism and QEMU user-space emulation allow transparent execution of binaries compiled for foreign CPU architectures.

emulation qemu multi-platform

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

Challenge, Easy, on Linux

Install Linux Packages from Remote Repositories (Debian & Ubuntu Edition)

by Ivan Velichko

Practice one of the key Linux skills - installing packages from remote repositories.

os-packages apt dpkg debian ubuntu

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

Challenge, Easy, on Linux

Install Linux Packages from Remote Repositories (Fedora & RHEL Edition)

by Ivan Velichko

Practice one of the key Linux skills - installing packages from remote repositories.

os-packages dnf rpm fedora rhel

See all official challenges →

Independent Authors

Challenges from outstanding independent authors proudly hosted by iximiuz Labs.

This challenge was carefully crafted by an independent author and proudly hosted by iximiuz Labs.

Challenge, Easy, on Linux, Programming

eBPF Challenge for Beginners

by Teodor Janez Podobnik

In this challenge, you’ll debug and fix a deliberately “broken” eBPF program, then prove it’s running by identifying its program and map IDs. Along the way, you’ll explore bpftool, check which helpers are supported, and dig into details like the UID of the loader. Finally, you’ll test your knowledge of eBPF maps by recalling the flag that only inserts a key if it doesn’t already exist.

eBPF

Community Collection

Challenges contributed by the community members sharing their knowledge and expertise.

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Linux

The SED command : Survival Guide - What You Must Know

by Lotfi Hamadene

Master **sed**, the essential stream editor for Linux SysAdmins. Progress through 10 tasks: simple & global substitution, regex patterns, line ranges, deletion, insertion, ... Work with realistic Rocky Linux system files in /home/laborant/sed_challenge/.

sed text-processing stream-editor rhcsa

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Medium, on Linux, Observability

AWK Mastery: From Zero to Hero

by Lotfi Hamadene

3-phase AWK challenge on realistic data in /home/laborant/awk_challenge/. Fundamentals: columns, delimiters, formatting. Logic & regex: filters, anchors, conditions, math. Sysadmin: logs, CSVs, metrics, counts, reports. Data lives under /home/laborant/awk_challenge/ (logs/access, data/hr, sys/metrics) and outputs are written to /home/laborant/ files.

awk scripting text-processing rhcsa