17 Linux Log Files You Must Be Monitoring

▤ Summary

You’ll be familiar with key commands like tail and journalctl, understand how to use Linux logwatch, and know which log files are critical for identifying failed login attempts and other security issues. auth.log or secure log record authentication-related events, such as successful and failed login attempts, changes in user privileges, and other authentication mechanisms. This logs record activities and errors related to the MySQL database server, including queries, connections, and performance issues. Custom scripts and automation tools allow you to set up proactive alerts, perform regular log analysis, and ensure continuous system health monitoring without constant manual intervention. For instance, a simple Bash script can be created to check for specific error patterns in logs and send email alerts if any are found.

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Sematext

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