Public bug reported:

gdnsd by default tries to bind to any address on port 53

which is taken by systemd-resolved now to fix
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1731522

Well, specifically systemd-resolved takes upd/tcp 127.0.0.53:53, which
is in conflict with tcp/udp [::]:53 of gdnsd.

I don't believe there exists packaging integration with gdnsd, like
there is for dnsmasq to ignore / skip and not bind to certain
interfaces.

What should be done to fix gdnsd? Ship a config file, or a compiled in
default, to listen on localhost upd only? or to ship config snippet to
override systemd-resolved behaviour to not bind on tcp?

** Affects: gdnsd (Ubuntu)
     Importance: Undecided
     Assignee: Steve Langasek (vorlon)
         Status: New

** Changed in: gdnsd (Ubuntu)
     Assignee: (unassigned) => Steve Langasek (vorlon)

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https://bugs.launchpad.net/bugs/1764327

Title:
  gdnsd fails to start, as it tries to listen to [::]:53

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