Set DNS server in Ubuntu 20.04 Focal Fossa


Set contents of /etc/systemd/resolved.conf to:


Apparently spaces are separators. Those are NextDNS servers in the example btw. NextDNS has not sponsored this post.

Then run: $ sudo service systemd-resolved restart

This was one of about two hundred million things that took me too long to figure out while setting up Ubuntu 20.04.

And in case you want to resolve single-label lookups, systemd-resolved don’t do that.

  • apt install dnsmasq resolvconf
  • Disable systemd-resolved
  • Set dns=dnsmasq in /etc/NetworkManager/NetworkManager.conf
  • Set nameserver in /etc/resolvconf/resolv.conf.d/base
  • Restart all teh things
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