Further reading

• Five open source log management programs: https://fosspost.org/lists/open-source-log-management
• What Is a SIEM?: https://www.tripwire.com/state-of-security/incident-detection/log-management-siem/what-is-a-siem/
• 12 Critical Linux Log Files You Must be Monitoring: https://www.eurovps.com/blog/important-linux-log-files-you-must-be-monitoring/
• Analyzing Linux Logs: https://www.loggly.com/ultimate-guide/analyzing-linux-logs/

• Linux log files with examples: https://www.poftut.com/linux-log-files-varlog/
• The rsyslog home page: https://www.rsyslog.com/
• Why Journald?: https://www.loggly.com/blog/why-journald/
• Journalctl cheat sheet: https://www.golinuxcloud.com/view-logs-using-journalctl-filter-journald/
• The Linux Administration Cookbook, by Adam K. Dean: https://www.packtpub.com/virtualization-and-cloud/linux-administration-cookbook
• The Logwatch project page: https:...