[Unit] Description=IONOS DDNS Auto Updater Service After=network-online.target Wants=network-online.target [Service] # Service runs as root to handle /var/log permissions simply User=root Group=root # Working Directory WorkingDirectory=/opt/ionos-ddns # Start Command ExecStart=/usr/bin/python3 /opt/ionos-ddns/update_ddns.py # Restart policy (Crash protection) Restart=always RestartSec=10 [Install] WantedBy=multi-user.target