Stop the Resolve Service by running the following command in Ubuntu systemctl stop systemd-resolved.service Then disable it completely by running the following command: systemctl disable systemd-resolved.service You can delete the existing Resolve Configuration file so we can set fresh name server rm -f /etc/resolv.conf Now setup the Google nameservers or any other like cloudflare namerservers. echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4" > /etc/resolv.conf Now try pinging yahoo.com and you will see you are connected to the internet.

Disable Resolv.conf from Resetting in Ubuntu

Stop the Resolve Service by running the following command in Ubuntu
systemctl stop systemd-resolved.service
Then disable it completely by running the following command:
systemctl disable systemd-resolved.service
You can delete the existing Resolve Configuration file so we can set fresh name server
rm -f /etc/resolv.conf
Now setup the Google nameservers or any other like cloudflare namerservers.
echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4" > /etc/resolv.conf
Now try pinging yahoo.com and you will see you are connected to the internet.