sudo apt update
sudo apt install resolvconf
sudo systemctl start resolvconf.service
sudo systemctl enable resolvconf.service
sudo systemctl status resolvconf.service
sudo vim /etc/resolvconf/resolv.conf.d/head
and add the following lines in it:
nameserver 8.8.8.8
nameserver 8.8.4.4
sudo systemctl start resolvconf.service