■ 작업순서# step01. systemd-resolved.service 서비스가 실행 확인CMD] sudo systemctl status systemd-resolved.service# step02. /etc/systemd/resolved.conf DNS 등록 CMD] sudo vi /etc/systemd/resolved.conf--------------CHANGE----------------------DNS=192.168.31.172 8.8.8.8--------------CHANGE----------------------END# step03. 서비스 재시작CMD] sudo systemctl restart systemd-resolved.service# step04. DNS 작동 확인CMD] nslook..