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

[Tom H]

On Sun, Jun 4, 2017 at 5:24 AM, Xen <list at xenhideout.nl> wrote:
>
> I realize that but for me it is useful to know how to have some degree of
> choice in what system will be used.
>
> If systemd still uses /etc/resolv.conf, that is peculiar.
>
> Then it uses unmodified libnss-dns.so and just becomes the forwarding dns
> server.
>
> Previously in an email it was said that systemd-resolved would use nsswitch
> directly, and not use /etc/resolv.conf at all.
>
> Therefore I assume that it *doesn't* use /etc/resolv.conf at all but just
> messes with it, as was indicated.
>
> Therefore you can assume that the /etc/resolv.conf is not actually used by
> systemd-resolved and it actually did change the nsswitch.conf system, but I
> don't know how.
>
> 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
>
> to get the list of hosts found via nsswitch.conf, and "getent host <name>"
> to resolve it.
>
> This will show you what the nsswitch.conf system actually returns.

resolved can be queried two ways:

- via "127.0.0.53" in "/etc/resolv.conf" and "dns" on the "hosts" line
of "/etc/nsswitch.conf"

- via  "resolve" on the "hosts" line of "/etc/nsswitch.conf"

I'd forgotten about getent. You could try "getent ahostsv4 esprimo" to
check whether it works but tis still won't solve the fact that "host
esprimo" is failing.