Weird systemd resolv.conf behavior

[Adam Funk]

On 2018-03-28, Tom H wrote:

> On Wed, Mar 28, 2018 at 5:30 AM, Adam Funk <a24061 at ducksburg.com> wrote:
>>
>> I've been having a strange problem with the systemd resolver on my
>> work laptop. Basically, whenever I use it at the office, a "search"
>> line with the work domain is added to this file
>>
>> /etc/resolv.conf -> ../run/resolvconf/resolv.conf
>>
>> and it stays there after I suspend the laptop, carry it home, & wake
>> it up to use the wired or wifi home network. The effect is that it's
>> impossible to resolve work hostnames. Things I have tried (in various
>> combinations and sequences):
>>
>> sudo service network-manager restart
>> sudo service systemd-resolved-update-resolvconf restart
>> sudo service systemd-resolved-update restart

The last one was a mistake for "sudo service systemd-resolved
restart"!

> "resolv.conf" is managed by resolvconf on your system and not by systemd-resolve
>
> What does "/run/systemd/network/resolv.conf" look like at home and at
> work, with and without the restarts (does

AFAICT, using it at work only adds the "search" line, which doesn't go
away after the restarts.  I'll check again tomorrow.

> "systemd-resolved-update.service" exist?)?
>