[Dnsmasq-discuss] dnsmasq's behaviour with configured static hosts is unintuitive

[Geert Stappers]

On Thu, Mar 04, 2021 at 06:50:39AM +0000, Aaron Jones wrote:
> Hello.
> 
> I'm trying to force queries for specific names to not be forwarded along
> to recursors, and be answered locally. The normal way to do this is to
> put such address/name pairs in hosts(5), or you can add a --host-record=
> option to the configuration file.
> 
> That works okay.

Acknowledge

 
> However, I'm trying to force a specific address family. Specifically,
> these records are for host names on a VPN, and the VPN is IPv6 only. So,
> for example, given the following configuration option:
> 
> --host-record=foo.example.org,fd00::1
> 
> Or given the following hosts(5) entry:
> 
> fd00::1 foo.example.org
> 
> ... will result in an AAAA query for the name returning fd00::1, but an
> A query is forwarded along to the configured recursors, instead of
> dnsmasq replying with NODATA.
> 
> This seems wrong.

I don't think so.

Infact it is what dnsmasq does
  - reply with what it knows
  - otherwise forward the request

 
> I tried to explicitly indicate that there is no IPv4 address, but this
> option has no effect:
> 
> --host-record=foo.example.org,,fd00::1
> 
> ... and this option returns the address exactly as given:
> 
> --host-record=foo.example.org,0.0.0.0,fd00::1
> 
> Any pointers?

Share the challenge you are facing with us.



Groeten
Geert Stappers
-- 
Silence is hard to parse