Least privilege · approximately 4 minutes · no timer

Your runbook is unreadable

Your private runbook is /home/learner/lab/private-note.txt. Recover owner-only read/write access, then read it. Do not grant group or public access.

learner@clairos:~ $

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Your recovery goal

The runbook is mode 600 and has been read successfully.

Investigation in progress.

Show a recovery path

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

stat lab/private-note.txt
chmod 600 lab/private-note.txt
cat lab/private-note.txt

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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