How to use the labs

Each lab ends by BREAKING SOMETHING ON PURPOSE. That is the part people skip, and IT IS THE PART THAT TRANSFERS. Every lab has two halves. The first builds or configures something and it is the half that looks like the lesson. The second breaks it deliberately and observes what the system says — and that is the half people leave out when they are short of time. IT TRANSFERS AND THE FIRST HALF LARGELY DOES NOT, FOR A SPECIFIC REASON. The build steps are published; you will look them up when you need them and the documentation is better than your memory of a lab. What you cannot look up is what a particular failure LOOKS LIKE from the outside — which log line appears, how long it takes to show up, what the users report, and which two innocent-looking causes it resembles. THAT RECOGNITION IS WHAT SEPARATES SOMEBODY…

In this module: Module 0 · Orientation

1. 1What you will be able to do
2. 2What this course is not
3. 3An environment you may break
4. 4How to use the labs