1558 ± 55 · 15 passed of 20 attempts · joined Sep 2025
Sample data. A generated account, not a real person.
20 attempts in the last twelve months · best day 3 · current streak 0 days
2026 · 11 attempts · best day 2
2025 · 9 attempts · best day 3
Nineteen axes, from the EX200 and EX342 objectives plus the automation subjects. A topic never attempted sits at the centre — point at an axis for its numbers.
| Topic | Rating | Labs |
|---|---|---|
| Bash | 1731 | 3 |
| Model Context Protocol | 1707 | 2 |
| Boot and systemd | 1681 | 9 |
| AI Agents | 1675 | 1 |
| Claude Code | 1675 | 1 |
| Linux basics | 1610 | 4 |
| Firewall and SELinux | 1599 | 1 |
| Kernel and performance | 1599 | 1 |
Click an attempt to open it. Rated attempts moved the number on the left; the ones marked practice are unrated — recorded, not counted.
| When | Work | Result | Time | Rating |
|---|---|---|---|---|
| 22 Aug 2026 | The Playbook That Changes Everything, Every Time | passed | 4m 19s | +57 |
| 22 Aug 2026 | A Message You Are Not Allowed to Read ▶ replay | passed | 4m 44s | +22 |
| 13 May 2026 | Theory: Memory and CS in Linux theory | passed | 1m 40s | +74 |
| 12 May 2026 | The Job That Works Only by Hand | passed | 5m 44s | +21 |
| 24 Feb 2026 | The Site Nobody Can Reach ▶ replay | passedpractice | 12m 01s | — |
| 24 Feb 2026 | The Service That Won't Stay Up ▶ replay | passed | 8m 43s | +72 |
| 23 Feb 2026 | The Tool Only Root Can Run | failed | 16m 28s | -151 |
| 22 Feb 2026 | Theory: Linux fundamentals theory | passed | 1m 34s | +82 |
| 22 Feb 2026 | The Module That Shadows the Standard Library | passedpractice | 9m 05s | — |
| 21 Feb 2026 | The Rename That Wants to Destroy | failed | 21m 50s | -118 |
| 21 Feb 2026 | The Log That Never Rotates | failed | 17m 13s | -144 |
| 13 Oct 2025 | The API That Vanishes on Reboot ▶ replay | passed | 5m 56s | +34 |
| 12 Oct 2025 | The Job That Works on My Machine | passed | 3m 09s | +12 |
| 12 Oct 2025 | The Report That Dies on a Quiet Night | passed | 4m 53s | +40 |
| 12 Oct 2025 | The Server You Inherited | failed | 76m 35s | -39 |
| 11 Oct 2025 | The Job That Runs Twice | passed | 18m 54s | +282 |
| 11 Oct 2025 | The Server That Talks Too Much | passed | 9m 09s | +65 |
| 10 Oct 2025 | The Page That Gave Orders | passed | 10m 33s | +175 |
| 09 Oct 2025 | The Hooks That Never Fire | passed | 13m 35s | +175 |
| 09 Oct 2025 | The Volume That Filled Overnight | failed | 20m 07s | -175 |