Mission 239

Nginx validate loop

Validate config, read config, and compare a changed copy.

Server operations
8 minutes Admin Lesson 239 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.

Validate config

Run nginx -t.

nginx -t
Read config

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

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

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

diff data/config-a.conf data/config-b.conf
Lesson support

What to notice while you play.

Objective

Validate config, read config, and compare a changed copy.

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.

diff <left> <right>

Compare two lab text files.

nginx -t

Validate training nginx configuration.