DNS not working after upgrade to 18.04

Usually systemd-resolved gets the DNS servers from the DHCP handshake. Does your DHCP server give out the DNS addresses?

Also you can edit /etc/systemd/resolved.conf and add the IP address(es) of your server(s) on the DNS and FallbackDNS lines.

Code:

[Resolve]
DNS=192.168.100.100
FallbackDNS=8.8.8.8
[etc.]

192.168.100.100 is a local server on my network. You need to run “sudo systemctl restart systemd-resolved” after making any changes.

DNS not working after upgrade to 18.04 was last modified: April 16th, 2021 by Jovan Stosic

RIS