Exam catalog
86 stackable modules. Each module has its own levels (L1–L5), exam and badge. Take only the exams that fit you.
AllCoreWindows Power UsermacOS Power UserLinux and Server ITNon-Tech ProfessionalTech ProfessionalIndustry SimulationsTechnical EnglishAI ProductivityEditor FluencyDocumentation ManagementBrowser Power UserMarkdown MasterySpecializations
Linux and Server IT
LNX-SH
Linux Shell
Shell, pipes, grep/sed/awk, find, jq, scripting
20 min$39AI-freelinuxMVP
LNX-ADM
Linux Administration
Users/groups, permissions, sudo, packages, systemd, cron
20 min$39AI-freelinuxPhase 2
LNX-NET
Linux Networking
ip/ss/curl/dig, SSH keys, tunnels, firewall (ufw/nftables), DNS basics
20 min$39AI-freelinuxPhase 2
LNX-OPS
Linux Operations
Logs (journalctl), monitoring, disk/LVM, backups, troubleshooting
20 min$39AI-freelinuxPhase 2
LNX-SEC
Linux Security
SSH hardening, fail2ban, patching, least privilege, auditing
20 min$39AI-freelinuxPhase 3
LNX-CLOUD
Containers and Config Management
Containers (Docker), systemd units, basic Terraform/Ansible
20 min$39AI-freelinuxPhase 3