Use Logs as Evidence, Not Noise
Extract timestamped evidence from Linux logs before forming a root-cause theory.
Do not start with root cause. Start with evidence. On Linux, evidence usually means logs, timestamps, process state, and recent changes. Build The Timeline Collect the first symptom, the first error, the nearest change, the mitigation, and the recovery signal. This stops the team from arguing over isolated log lines. Ask Why After Evidence Five Whys is useful only when each answer points to evidence. If an answer says "probably" or "someone must have," you have left the log trail and entered speculation. Close The Loop NIST CSF thinking keeps the work complete: respond to reduce impact, recover the service,…
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