[Dnsmasq-discuss] localdomain non-responsive without edns on ubuntu 14.04

Simon Kelley simon at thekelleys.org.uk
Sat Feb 13 17:12:49 GMT 2016


I'm running 14.04 and just tried that experiment. I can't see any
difference in behaviour. In each case the query gets passed on to the
upstream nameserver, so I guess that the effect might originate there.




Cheers,

Simon

On 12/02/16 17:44, Justin Karneges wrote:
> Hi list,
> 
> I noticed a weird issue on Ubuntu 14.04, which installs dnsmasq 2.68. If I
> try to look up an A record for a non-existent host within the "localdomain"
> domain without edns, the server is unresponsive.
> 
> In other words, these commands all get a response from 127.0.0.1 in some
> way (NXDOMAIN or empty) :
> 
>   dig nosuchhost.localdomain
>   dig nosuchhost.foo
>   dig nosuchhost
>   dig nosuchhost.foo +noedns
>   dig nosuchhost +noedns
> 
> whereas, this command hangs:
> 
>   dig nosuchhost.localdomain +noedns
> 
>   ; <<>> DiG 9.9.5-3ubuntu0.7-Ubuntu <<>> nosuchhost.localdomain +noedns
>   ;; global options: +cmd
>   ;; connection timed out; no servers could be reached
> 
> This issue does not appear to be present in Ubuntu 15.10, which uses
> dnsmasq 2.75.
> 
> Was this a bug in dnsmasq that was fixed? Or a configuration difference
> between the two OS versions?
> 
> Thanks,
> Justin
> 
> 
> 
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