How to Monitor System Logs in Linux

 Introduction

Logs are essential for diagnosing problems and tracking system activity. Linux stores logs in /var/log.

Step 1: View System Log

tail -f /var/log/syslog # Debian/Ubuntu  

tail -f /var/log/messages # CentOS/RHEL

➡️ Shows live system log updates.

Step 2: Use journalctl

journalctl -xe

➡️ Displays logs managed by systemd.

Step 3: Check Specific Service Logs

journalctl -u ssh

➡️ Shows logs for the SSH service.

Conclusion

Monitoring system logs regularly helps detect issues early and maintain system security.