A reboot fixed the problem.

I am running ubuntu 17.11 which doesn't use dhcpd. The comments in 
resolv.conf mention systemd-resolve, so I will be looking into that as 
well as resolvconf when I find some spare time.

Thanks for the help,

On 04/14/2018 07:00 PM, Iznogoud wrote:
> I think you should have a look at what your system does to /etc/resolve.conf,
> or more specifically, how it builds it. Look here:
> /lib/dhcpcd/dhcpcd-hooks/20-resolv.conf
> Also look at the man page for 'resolvconf" to get an idea of what is going on.
> Also look at the dhcpcd man page.
> I just cannot remember off hand if dhcpcd will take domain info from the
> dhcp server that provides the lease.
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