Service recovery · approximately 5 minutes · no timer

The site is down

The training web service is not accepting requests. Inspect its state, bring it back, and verify the page responds.

learner@clairos:~ $

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Your recovery goal

nginx is active and a successful HTTP check follows the repair.

Investigation in progress.

Show a recovery path

Use this as a worked example, not the only accepted command sequence.

systemctl status nginx
sudo systemctl start nginx
curl http://localhost/

Two stars for resolution; a third for diagnostic evidence. Practice rewards are session-only when signed out and device-local when signed in.

What did the evidence establish?

Separate the failing condition from your explanation of its cause. After a repair, verify the result at the layer the user actually depends on. A changed file, successful syntax check, running process, and successful request prove different things.

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