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5 Things I Check First When a Linux Server Goes Down

When a production machine drops offline or stops responding, guessing wastes precious minutes. Here is the exact five-step triage sequence I run to find the root cause and bring systems back online.

  • Author checks network connectivity by pinging server and testing SSH access
  • Examines system load averages and memory usage using uptime, free -h, vmstat
  • Avoids blindly rebooting server to prevent loss of vital debugging information

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