[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:
> >
> >
> >
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--
Nate Duehr <nate at natetech.com>
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