Maintained by: NLnet Labs

[Unbound-users] Strange lookup error

Mathias Tauber
Wed Sep 11 16:44:20 CEST 2013


Am 11.09.2013 15:13, schrieb Joe Abley:
>
> On 2013-09-11, at 09:01, Mathias Tauber <tauberml at hdpnet.de> wrote:
>
>> Hi all,
>>
>> we've got here a little problem with resolving single domains. Two examples:
>>
>>   ~# host www.oas.com
>>   www.oas.com is an alias for www.lb.oas.com.
>>   www.lb.oas.com has address 200.230.27.19
>>   ;; connection timed out; no servers could be reached
>>   ;; connection timed out; no servers could be reached
>
> host is doing lookups for A, AAAA and MX. In the case of a CNAME answer to the A or AAAA queries with no additional-section answers for the CNAME RDATA, I believe host will do additional lookups.
>
> If you want to nail this down, I suggest using dig and specifying the unbound server you suspect has problems explicitly.

So I guess squid is doing AAAA lookups. I will check this...

Thanks
Mathias