Paste log output (or leave empty for command generator):

Quick commands:

Common Log Locations

/var/log/syslog	System messages (Debian)
/var/log/messages	System messages (RHEL)
/var/log/auth.log	Authentication logs
/var/log/kern.log	Kernel logs
/var/log/nginx/	Nginx access/error
/var/log/apache2/	Apache access/error

journalctl Quick Ref
journalctl -u nginx -f — follow unit
journalctl --since "1h ago" — last hour
journalctl -p err — errors only
journalctl -b -1 — previous boot

Log Rotation
Config: /etc/logrotate.conf
Force: logrotate -f /etc/logrotate.d/nginx