A failure needs to be narrowed down before settings are changed or operations retried. Which evidence best separates application errors from environment and dependency problems?

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Tasadduq BurneyownerOwner · Founder

26525 reputation · 04 Jul 2020, 11:01 UTC

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Start with service status and the relevant journal entries, then inspect disk space, memory pressure and network listeners. Check the exit code and permissions on required paths. A full filesystem or exhausted inode table can look like an unrelated application failure.

What should I check first when Linux fails?

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