resolv.conf and a non-standard port

[Bert Kiers]

On 21/08/2017 13:04, Victor Sudakov wrote:
> Bert Kiers wrote:
>>
>>> How can I configure the resolver to use a DNS server with a
>>> non-standard port? 
>>>
>>> I have a host running an authoritative-only server (nsd) for the
>>> world, and I want to run local unbound for the host itself (can't use
>>> nsd for recursive queries).
>>>
>>> Unbound can listen on a non-standard port, but how do I configure the
>>> host to use the DNS server at 127.0.0.1:5353 ?
>>
>> I think it will be more simple to have nsd and unbound listen on
>> different IP-adresses, like unbound on 127.0.0.1 and nsd on the external
>> IP-address.  Then put 127.0.0.1 in resolv.conf
> 
> That's how I have configured it now, but this solution has a major
> drawback: you need to specify the IP address explicitely in
> /var/unbound/unbound.conf which can be inconvenient in some
> situations.
> 
> So it's a workaround, but by no means "more simple."

What happens when you let unbound listen on 127.0.0.1 and nsd on *
(a.k.a. 0.0.0.0)?  That may work because 127.0.0.1 is more specific.
Maybe the startup order of the daemons is important then.

-- 
Bert Kiers, suspected terrorist
Love MS-Windows? Must be Stockholm syndrome.