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

[Xen]

Chris Green schreef op 04-06-2017 11:06:

> However what I actually want is for the 'as delivered' system (or at
> least one with as little modification as possible) to resolve
> unqualified names, like the old system used to.

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.