Manage Services
systemctl start nginx.service
systemctl stop nginx.service
systemctl restart nginx.service
systemctl reload nginx.service
Start on Boot
systemctl enable nginx.service
systemctl disable nginx.service
Services are called "units"
systemctl list-units # show active services in memory
systemctl list-units --all # show all services in memory
systemctl list-unit-files # show all possible units
Reading Logs
journalctl # show all logs
journalctl -b # show all logs since last boot
journalctl -k # show only kernel logs
journalctl -b -u nginx.service # show logs for a service since boot