Name resolution issue on one domain

Lyle Giese lyle at lcrcomputer.net
Thu Jan 12 14:45:57 UTC 2012


 From that machine, do a

dig +trace fpdns.googlecode.com

and analyze those results.

Then try

dig @ns1.google.com fpdns.googlecode.com

And repeat for the other authoritive name servers for that zone.

And realize that the 'issue' might be transitive, in other words here 
one minute, gone the next and that server cached an answer when the 
problem was present.

I can think of several things outside your control or your network that 
can cause this issue. Route to one of Google's name servers down.  Your 
Internet connection was full and that traffic was dropped or delayed 
enough to time out the query.

Lyle Giese
LCR Computer Services, Inc.

On 01/12/12 08:11, babu dheen wrote:
> Hi,
> I can see only below line in the logs which is no more useful. 
> Actully  i would like to find out where exactly DNS query is blocked 
> during query process
> /*client 127.0.0.1#46547: view localhost_resolver: query: 
> fpdns.googlecode.com IN
> A +
> */
> Regards
> babu
>
> --- On *Thu, 12/1/12, Matus UHLAR - fantomas /<uhlar at fantomas.sk>/* wrote:
>
>
>     From: Matus UHLAR - fantomas <uhlar at fantomas.sk>
>     Subject: Re: Name resolution issue on one domain
>     To: bind-users at lists.isc.org
>     Date: Thursday, 12 January, 2012, 4:00 PM
>
>     On 12.01.12 15:37, babu dheen wrote:
>     >  We have two gateway DNS server running in BIND. One DNS is
>     using one ISP link and another DNS server is using another ISP link.
>
>     > Today i tried to resolve below URL from one DNS its not working
>     whereas the same lookup is working fine another DNS.
>
>     > Non-authoritative answer:
>     > Name:    googlecode.l.google.com
>     > Address:  173.194.69.82
>     > Aliases:  fpdns.googlecode.com
>
>     > Any idea as to why one GW DNS is not giving result. Except this
>     domain, all other domain name lookup happening on the same DNS server.
>
>     > How can i find out the exact reason?
>
>     Start with searching in logs of the second server.
>
>     -- Matus UHLAR - fantomas, uhlar at fantomas.sk
>     <http://in.mc1373.mail.yahoo.com/mc/compose?to=uhlar@fantomas.sk>
>     ; http://www.fantomas.sk/
>     Warning: I wish NOT to receive e-mail advertising to this address.
>     Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
>     Fighting for peace is like fucking for virginity...
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