Mission 21

Nginx validation

Read training nginx config and validate it without making real server changes.

Server operations
9 minutes Core Lesson 21 of 360
catgrepnginx -t
Lesson 21 of 360 0/360 lessons 0/17 missions Server operations · 9 minutes
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learner@clairos:/home/learner $ Unix ops lab: type a command, press Enter
Instructions 9 minutes

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

Read site config

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

cat /etc/nginx/sites-available/learn.conf
Check API rule

Run grep /api/ /etc/nginx/sites-available/learn.conf.

grep /api/ /etc/nginx/sites-available/learn.conf
Validate nginx

Run nginx -t.

nginx -t
Lesson support

What to notice while you play.

Objective

Practice the read-search-validate flow.

Hint

Read the site config, search for location /api/, then run nginx -t.

Why it matters

Validation catches broken config before it takes a service down.

Common mistakes
  • Reloading before testing.
  • Skipping security-sensitive locations.
Reference

Commands in this lesson.

cat <file>

Print text file contents.

grep [-i] <text> <file>

Find literal text inside a file.

nginx -t

Validate training nginx configuration.