[Dnsmasq-discuss] Dnsmasq replying with refuse without forwarding request to upstream server.

Dominik DL6ER dl6er at dl6er.de
Fri Jul 23 06:13:35 UTC 2021


Hey Sunil,

I encountered this situation only when dnsmasq didn't have any working
upstream server it could forward your query to.

Could you please
1. add "log-queries=extra" and "log-facility=/tmp/dnsmasq.log" to your
configuration,
2. restart dnsmasq,
3. do the DNS query that ends up in REFUSED, and
4. send us the generated log file

Maybe it reveals something of interest.

Best,
Dominik

On Fri, 2021-07-23 at 10:58 +0530, sunil rathod wrote:
> 
> Hello Simon,  I still see the problem after removing interface from
> server= config.  I restarted dnsmasq, for some reason dnsmasq not
> liking the dns query.  As soon as it receives the query sends back
> the REFUSE response without forwarding to upstream server. 
> 
> Sunil. 
> 
> On Fri, Jul 23, 2021, 03:05 Simon Kelley <simon at thekelleys.org.uk>
> wrote:
> > Two possible  reasons: 1) resource exhaustion - the limit on the
> > number
> > of "in-flight" queries has been reached. 2) Network errors sending
> > the
> > query upstream. As a start of debugging, I'd try without the @eth0
> > interface specifier.
> > 
> > Simon.
> > 
> > 
> > On 22/07/2021 18:21, sunil rathod wrote:
> > > Hi All, 
> > > Any thoughts why dnsmasq is replying with REFUSE response without
> > > forwarding the query to upstream server?  Nslookup always fails
> > with
> > > refuse response from the external client. I have the upstream
> > server
> > > configured on conf file as
> > > server=8.8.8.8 at eth0
> > > Regards, 
> > > Sunil
> > > 
> > > 
> > > _______________________________________________
> > > Dnsmasq-discuss mailing list
> > > Dnsmasq-discuss at lists.thekelleys.org.uk
> > > 
> > https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
> > > 
> > 
> > _______________________________________________
> > Dnsmasq-discuss mailing list
> > Dnsmasq-discuss at lists.thekelleys.org.uk
> > https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
> _______________________________________________
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss at lists.thekelleys.org.uk
> https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss





More information about the Dnsmasq-discuss mailing list