[lug] Weird DNS problems

Nate Duehr nate at natetech.com
Mon Nov 12 17:34:05 MST 2001


Yep.  Anything in a higher-level server in the tree will take precedence
over anything lower-down because your resolver will get an authoritative
flag from the roots/gtlds/whatever servers and stop there.

On Mon, Nov 12, 2001 at 09:12:25AM -0700, Chip Atkinson wrote:
> Nate,
> 
> 
> Thanks for the tip.  For archives sake as well as mine (i.e. correct me 
> if I'm wrong).  Here's what I did:
> dig
> (shows list of root servers)
> 
> dig @l.root-servers.net. pupman.com
> (shows list of GTLD servers)
> 
> dig @A.GTLD-SERVERS.NET pupman.com
> (shows in the answer section the incorrect address for pupman.com)
> 
> when I
> dig at york.jymis.com pupman.com
> I get the correct answer.  Since the root server appears to be queried 
> first, and it has an a record in it, it returns the incorrect address, 
> right?
> 
> Chip
> 
> 
> 
> Nate Duehr wrote:
> 
> > Here's how my nameserver got your old IP address, Chip...
> > 
> > First it goes to the GTLD servers to find your authoritative
> > nameservers... those are listed as york.jymis.com and disk.jymis.com...
> > BUT...
> > 
> > In the root servers it finds an A record for "pupman.com" since it used
> > to be listed as a nameserver for the domain.
> > 
> > You can either update the A record in the roots/gtld's or have it
> > removed so that nameservers can follow the delegation down to
> > york.jymis.com and dick.jymis.com to get the proper answer of
> > 63.225.119.186 instead of 199.45.150.249.
> > 
> > If you're using NSI/Verisign as your registrar, fill out the HOST change
> > form for the server record for pupman.com and change the IP there, or if
> > it really isn't a nameserver anymore, ask them to delete the record.
> > 
> > Nate Duehr, nate at natetech.com
> > 
> > 
> > On Fri, 2001-11-09 at 10:50, Chip Atkinson wrote:
> > 
> >> I believe that jymis.com has the authoritative domain records.  That 
> >> what dig seems to indicate:
> > 
> > 
> > 
> > _______________________________________________
> > Web Page:  http://lug.boulder.co.us
> > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> 
> _______________________________________________
> Web Page:  http://lug.boulder.co.us
> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug

-- 
Nate Duehr <nate at natetech.com>

GPG Key fingerprint = DCAF 2B9D CC9B 96FA 7A6D AAF4 2D61 77C5 7ECE C1D2
Public Key available upon request, or at wwwkeys.pgp.net and others.



More information about the LUG mailing list