How to get the systemd resolver to resolve local (i.e. unqalified) names?

[Chris Green]

On Sun, Jun 04, 2017 at 11:24:52AM +0200, Xen wrote:
> 
> There is no way normally to change the behaviour of getbyhostname unless you
> modify either nsswitch itself or those libraries.
> 
> You can do:
> 
> getent hosts
> 
This returns:-

    root at t470:/etc/systemd# getent hosts
    127.0.0.1       localhost
    127.0.1.1       t470
    127.0.0.1       ip6-localhost ip6-loopback

> to get the list of hosts found via nsswitch.conf, and "getent host <name>"
> to resolve it.
> 
... and this:-

    root at t470:/etc/systemd# getent hosts esprimo
    192.168.1.3     esprimo.zbmc.eu

I.e. using getent works as I want!  However:-

    root at t470:/etc/systemd# host esprimo
    Host esprimo not found: 2(SERVFAIL)

It would seem than anything that *doesn't* use the /etc/resolv.conf
configuration set up by systemd works OK but anything that goes to
127.0.0.53 fails with SERVFAIL.

-- 
Chris Green