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

[Xen]

Tom H schreef op 04-06-2017 16:19:

> I'd had to re-read the "resolv.conf" man page to be sure but, IIRC, if
> "/etc/resolv.conf" doesn't have a search or domain entry, the local
> system's domain is searched for short hostnames by default.

But if the upstream server doesn't search for it based on short names, 
it is not supposed to work.

>>> So "host" fails with both "resolve" and "dns" (previously it was
>>> failing with "resolve" and returning).
>> 
>> It doesn't use nsswitch.
> 
> Thanks. True. It was a stupid test and comment :(

That doesn't matter ;-).

> ACK. In other words, querying resolved for a short hostname fails
> without the appropriate domain or search entry in "/etc/resolv.conf"
> in spite of resolved being configured with a "Domain=" directive. I
> wonder whether resolved can provide dig and co domain information
> without populating "/etc/resolv.conf with that information.

Yes, because it conforms to existing standards.

And because Linux has always had a kind of split system, where some 
tools would use nsswitch, and other tools would use /etc/resolv.conf, 
but nsswitch also uses /etc/resolv.conf (when configured for it),



but it can also use more and systemd now makes use of that.