No non-localhost DNS nameservers are left in resolv.conf. Using default external servers: [nameserver 8.8.8.8 nameserver 8.8.4.4]
echo "nameserver 114.114.114.114" > /etc/resolv.conf
chattr +i /etc/resolv.conf
echo "nameserver 114.114.114.114" > /etc/resolv.conf
chattr +i /etc/resolv.conf