Comment 48 for bug 1670959

I don't know what is the use case you guys have that you have to have dnsmasq and resolvconf installed. Maybe there is none and this is just an artifact from a release upgrade.

In Bionic, I only have dnsmasq-base (not dnsmasq) installed, and no resolvconf.

Looking at the initscript from dnsmasq, there seem to be a few options to disable it for local dns resolving, like the one suggested in https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1670959/comments/32, which I reproduce below:
Added this line to /etc/default/dnsmasq:

    DNSMASQ_EXCEPT=lo

Then restarting dnsmasq:

    sudo systemctl daemon-reload
    sudo systemctl restart dnsmasq

That will prevent the code quoted in https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1670959/comments/47 from running.