[Dnsmasq-discuss] Name found in /etc/hosts forwarded for AAAA

[Simon Kelley]

On 12/12/11 08:54, Schneidhuber, Bruno wrote:
> Hello,
>
> even if dnsmasq finds a name in /etc/hosts, it forwards a name query to
> the real dns server. These servers dont't find the name and the name
> query doesn't return until the query to the real servers times out.
> As I understand from mails from the archive this is to query the AAAA
> Record and this behaviour is intended.
> For severel reasons I have a lot of IPv4-only /etc/hosts. So this
> behaviour isn't desirable for me.
> Until now I changed the source code, but I don't want to do this for
> every release.
>
> Now two questions:
>
> - Is there a posibility to stop this behaviour?

Are all the names in the same domain?

something like

local=/mydomain.com/

will stop all forwarding for *.mydomain.com. A and AAAA requests, but 
not block A record answers that come from /etc/hosts.

I realise that this useless advise, if you don't have control, but the 
real nameservers shouldn't be taking a long time to time out on AAAA 
queries, so getting them fixed may be a solution.

> - Did I wrote complete nonsens?
>
No, but it's possible that you have missed the real problem: is the long 
timeout a result of a client getting an IPv6 answer and then attempting 
to make an IPv6 connection to a server? If that's the problem then 
disabling IPv6 in the network configuration (or making it work) may be a 
better solution.


Simon.


> Mit freundlichen Grüßen
>
> *Bruno Schneidhuber*
> Teamleiter Entwicklung Systemintegration
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