nano /etc/systemd/resolved.conf
DNS=119.29.29.29
DNS=223.5.5.5
DNS=100.100.2.136
systemctl restart systemd-resolved.service
systemd-resolve --status

image
nano /etc/systemd/resolved.conf
DNS=119.29.29.29
DNS=223.5.5.5
DNS=100.100.2.136
systemctl restart systemd-resolved.service
systemd-resolve --status