[lug] Weird DNS problems

Hugh Brown hugh at vecna.com
Fri Nov 9 10:32:49 MST 2001

A couple of thoughts.  Who is authoritative for your domain?  If it is the
qwest servers, do you know for sure that they updated the tables on the
bogus server?

I have had the problem with DNS if the root name servers have one ip and
the authoritative dns server for the domain have different ip's then things
go a little screwy.


"Chip Atkinson"
> Greetings,
> I'm having some domain lookup problems that I can't seem to figure out 
> and was hoping that someone could help me or at least point me in the 
> right direction.
> Here's the original problem:
> Mail from a mailing list that I run was producing an error when sent to 
> a subscriber at qwest.net.  It is "stat=Data format error" and "DSN: 
> Data format error".  A little search on the web indicated it might be a 
> DNS problem. (Yes, it is DSN in the error).
> I go to the name servers listed in /etc/resolv.conf and try to do a 
> forward and reverse lookup of my domain, pupman.com.
> $ cat /etc/resolv.conf
> search pupman.com
> nameserver
> nameserver
> (both are Qwest's name server as I send the mail out through a DSL 
> connection via them.)
> Forward lookups of pupman.com work on the 206 server works, but the 204 
> server has an old IP from around August.  Reverse lookups don't seem to 
> work at all.
> Does anyone know what's going on?  I thought that name servers got the 
> information from the name server listed in the whois record.  This 
> doesn't seem to be the case to me becaue it's been since Aug. when I 
> used the old IP and one would think that the cache at Qwest's name 
> servers would have expired.  Furthermore, if I set q=any and query the 
> server giving the bogus results it seems to use the right name server 
> from the whois records.
> I'm stumped right now.
> Thanks in advance for any help.
> Chip

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