Start a service
sudo systemctl start nginx
Stop a service
sudo systemctl stop nginx
Restart a service
sudo systemctl restart nginx
Reload service configuration
sudo systemctl reload nginx
Enable service at boot
sudo systemctl enable nginx
Disable service at boot
sudo systemctl disable nginx
Check service status
sudo systemctl status nginx
View service logs
sudo journalctl -u nginx
Follow service logs (real-time)
sudo journalctl -u nginx -f
List all services
systemctl list-units --type=service
List failed services
systemctl --failed
Reload systemd daemon
After editing service files:
sudo systemctl daemon-reload
Check if service is active
systemctl is-active nginx
Check if service is enabled
systemctl is-enabled nginx