DNS delay on first lookup, Ubuntu 19.10 but not earlier versions

[Colin Law]

On Thu, 2 Apr 2020 at 09:59, Chris Green <cl at isbd.net> wrote:
>
> On Thu, Apr 02, 2020 at 09:17:47AM +0100, Colin Law wrote:
> > Are the failing systems ones that have been updated over a period?  I
> > think there may have been an issue with upgrades not cleanly managing
> > upgrades to the DNS system.
> > What does
> > ls -l /etc/resolv.conf
> > show? it should be a link to /run/resolveconf/resolv.conf, at least
> > that is what it is on mine.
> >
> > If it isn't then move it and create the link
> >
> One of the xubuntu 19.10 systems is a new install, the other has been
> upgraded since quite a long way back.  As far as I can see all the
> 'resolv' links and configuration are the same on both systems.
>
> On my two 19.10 systems /etc/resolv.conf is a link to /run/systemd/resolve/stub-resolv.conf
>
> /run/resolveconf/resolv.conf doesn't exist on my systems.

OK, not that then.  I was expecting mine to be a link to the stub as
that is what my old notes say, but when I looked mine is as I posted
so I assumed something had changed again.  Not sure what is going on
with mine then.

Colin