Understanding Linux System Logs
System logs are crucial for troubleshooting and monitoring server health.
Important Log Files
- /var/log/syslog - General system logs
- /var/log/auth.log - Authentication logs
- /var/log/nginx/ - Web server logs
Using journalctl
# View recent logs
journalctl -n 100
# Follow logs in real-time
journalctl -f
# Filter by service
journalctl -u nginx.service
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