[Unit] Description=Route53 Dynamic DNS Service After=network-online.target Requires=network-online.target [Service] Type=simple RemainAfterExit=yes ExecStart=/usr/bin/r53-ddns -z ${DNS_ZONE_ID} -d ${DOMAIN_NAME} User=${USER} Restart=always RestartSec=60 [Install] WantedBy=multi-user.target