platform path
Server IT Professional
Sysadmins, DevOps/SRE, cloud engineers. Tier 2 of the Linux path.
Modules
| Module | Skills | L1 | L3 | L5 | You |
|---|---|---|---|---|---|
| Linux Shell | Shell, pipes, grep/sed/awk, find, jq, scripting | Navigate and read files (cd, ls, cp, mv, cat, grep) | sed/awk/jq, xargs, scripting, cron | Complex pipelines under time pressure, robust scripts | Take |
| Linux Administration | Users/groups, permissions, sudo, packages, systemd, cron | Manage files and permissions | Services, packages, scheduled jobs | Hardening and policy at scale | Take |
| Linux Networking | ip/ss/curl/dig, SSH keys, tunnels, firewall (ufw/nftables), DNS basics | Check connectivity | Diagnose port/DNS issues | Complex routing, secure remote access | Take |
| Linux Operations | Logs (journalctl), monitoring, disk/LVM, backups, troubleshooting | Read logs | Fix a failing service | Restore from failure within time limit | Take |
| Linux Security | SSH hardening, fail2ban, patching, least privilege, auditing | Basic safe habits | Harden a server | Respond to incident scenarios | Take |
About this path
- Certificate
- Server IT Professional L1–L5
- Rule
- Your path level is the minimum level across all modules.
- Delivery
- Disposable Linux VM per candidate; network egress blocked.
- Sample task
- A server stopped serving HTTPS after a certificate renewal; restore the service, then lock down SSH to key-only login. You have 25 minutes.