[Unbound-users] fail to resolve casalvecchi.com.ar

Willem Toorop willem at nlnetlabs.nl
Tue Oct 22 08:26:51 UTC 2013


I had it all wrong. The configuration I proposed does not influence the 
NS records in the cache. To have unbound use ns1.abr.com.ar as the only 
authoritative name server for casalvecchi.com.ar, one has to add the 
following configuration:

     name: casalvecchi.com.ar.
     stub-host: ns1.abr.com.ar.


-- Willem

op 21-10-13 15:39, Willem Toorop schreef:
> op 21-10-13 08:02, Andreas Schulze schreef:
>> Hello,
>> The domain "casalvecchi.com.ar" is broken.
> Hi Andreas, it certainly is broken!
> On the delegation point there are referrals to ns.abr.com.ar and 
> ns1.abr.com.ar.
> Only ns1.abr.com.ar. answers.
> ns.abr.com.ar seems to give SERVFAIL for any query it should answer.
> ns1.abr.com.ar returns one more name server when asked for its NS 
> records: ns0.abr.com.ar
> And when querying ns0.abr.com.ar about casalvecchi.com.ar, things get 
> even more crazy! One more name server is returned: 
> paimun.abrnetwork.com.ar.  which seems in sync with ns0.abr.com.ar 
> (have same SOA)
> Now which name servers to believe?
> ns.abr.com.ar. returns SERVFAIL always
> ns1.abr.com.ar. SOA serial 2013100801 and has A record 
> (also for www.casalvecchi.com.ar)
> ns0.abr.com.ar. and paimun.abrnetwork.com.ar. SOA serial 1216035805 
> has no A record, except for www.casalvecchi.com.ar:
>> unbound-1.4.20 fail to resolve A+MX but does it better.
>> I planned to add local-zone/local-data "voodoo" to my unbound.conf 
>> but as I not really understand
>> the problem I fail to setup a workaround.
> If you wish to mimic google behaviour, you could tell unbound to use 
> ns1.abr.com.ar.
>         local-zone: casalvecchi.com.ar. typetransparent
>         local-data: "casalvecchi.com.ar. 3600 IN NS ns1.abr.com.ar."
> If you trust the other name servers more, define those in local-data.
> But, maybe best would be to ask casalvecchi.com.ar to fix their name 
> server setup!
> Cheers,
> -- Willem
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