How you practise here
Every lab works the same way, whichever one you pick.
- 01
Pick a lab
The catalog says what each lab is about, how hard it is and how many machines it runs. Anyone can read it. Launching one is what needs an account.
- 02
Launch your own copy
A launch builds the machines for that session alone, on an address range no other session is using. You are never working on somebody else's copy.
- 03
Get in from the browser, or over WireGuard
Every machine has a Console button that opens a shell in a browser tab, with nothing installed. A web interface opens the same way, and your own tools can use the session's WireGuard config.
- 04
It clears itself away
A session has a time limit, shown as a countdown while you work. When it runs out the range shuts the lab down, so there is nothing left running and nothing to remember to stop.
How the work is graded
A lab is a list of tasks. You work them in the lab and submit what you find, and the range decides whether it is right.
Questions and flags
A task either asks you a question about what you found, or asks for a flag hidden on one of the machines. You type the answer in and the range says whether it is right.
Checked on the machine
Some tasks are graded by a checker rather than by an answer box. Press Verify and the range goes and tests the lab itself, so a repair counts only once it actually holds.
Hints cost points
A task you are stuck on has help you can open one rung at a time. The first rung caps that task at three quarters of its points, the next at half, the one after at a quarter. Replaying the lab does not give them back.
Start on the range
Reading the catalog needs nothing. Launching a lab is what an account is for.
Running a course? A lab can be restricted to a group, so a cohort gets labs nobody outside it can launch.