[Unit] Description=Update of the root trust anchor for DNSSEC validation Documentation=man:unbound-anchor(8) After=network-online.target Before=unbound.service [Service] Type=oneshot User=unbound Group=unbound ExecStart=/usr/bin/unbound-anchor -a /etc/unbound/var/root-anchors.txt -c /etc/dnssec/icannbundle.pem SuccessExitStatus=1 [Install] WantedBy=multi-user.target