in case you need to modify the DNS of UBUNTU 22
vi /etc/resolvconf/resolv.conf.d/head
add new nameserver i.e.
nameserver 1.1.1.1
nameserver 1.0.0.1
sudo resolvconf --enable-updates
sudo resolvconf -u
sudo systemctl restart resolvconf.service
sudo systemctl restart systemd-resolved.service
to check: resolvectl status
