I have just upgraded from 16.04 to 18.04 and I experiment some
configuration problems. My server is reachable. The web site is ok. I
can connect with ssh. The problem is that I can't reach internet from
When I ping I obtain this: ping: yahoo.com: Temporary failure in name resolution, and I am unable to udate and upgrade my system.
systemd-resolve --status | grep 'DNS Servers' -A2 do nothing. The /etc/netplan folder is empty and netplan generate and netplan apply do nothing.
How can I retrieve my defaults DNS, those I had under 16.04? So I will
be able to update my system.
Thanks in advance.
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