Mission 290

Incident nginx config mismatch

Compare active config and expected config examples.

Troubleshooting
8 minutes Advanced Lesson 290 of 360
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learner@clairos:/home/learner $ Unix ops lab: type a command, press Enter
Instructions 8 minutes

Click any instruction for the command details, the why, and the common mistake to avoid.

Read active config

Run cat /etc/nginx/sites-available/learn.conf.

cat /etc/nginx/sites-available/learn.conf
Compare examples

Run diff data/config-a.conf data/config-b.conf.

diff data/config-a.conf data/config-b.conf
Find changed listen

Run grep listen data/config-b.conf.

grep listen data/config-b.conf
Lesson support

What to notice while you play.

Objective

Compare active config and expected config examples.

Hint

Run the commands in order and compare the outputs.

Why it matters

Junior operators build confidence by gathering evidence before changing systems.

Common mistakes
  • Skipping the inspection step.
  • Assuming one command tells the whole story.
Reference

Commands in this lesson.

cat <file>

Print text file contents.

grep [-i] <text> <file>

Find literal text inside a file.

diff <left> <right>

Compare two lab text files.