nameserver question

[Mark.Andrews at iengines.com]

> In article <3870BAC2.E646A1E8 at mycomm.com>,
> Milan Yagodich  <milan at mycomm.com> wrote:
> >I know this sounds stupid, but do the two name servers that are
> >registered with internic and the nameservers that are listed by my ISP
> >have to be the same?
> >
> >The reason I ask is that my ISP does not have them the same and I am
> >having problems.
> 
> They don't have to be the same.  But all the servers that are listed in
> either place need to be authoritative for the zone.

	The correct answer is that they have to be the same.  I know
	there are case where you can get away with them not being the
	same but there are cases where they MUST be the same or else
	the system deadlocks.

	At the very least the servers listed in the parent zone have
	to be a subset of those listed in the child zone or deadlocks
	can occur.

	Mark

> 
> >Since my ISP does the zone updates, what is the significance of the
> >nameservers listed with internic?  I am missing something really basic
> >here.
> 
> I assume the domain we're discussing is MYCOMM.COM, right?
> 
> The problem isn't that they're different, the problem is that the servers
> that the ISP lists don't have the zone installed on them.  One of them,
> ntwebsp.websp.com, has the same address as the registered server
> ns2.websp.com, but it returns a SERVFAIL error when I query it.  The other
> server, ns.knight-hub.com, doesn't have the zone installed on it, either.
> So you only get a proper response when you query ns.websp.com, and the
> response it returns includes referrals to use incorrect servers in the
> future.
> 
> Tell your ISP to get their act together.
> 
> -- 
> Barry Margolin, barmar at bbnplanet.com
> GTE Internetworking, Powered by BBN, Burlington, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
> Please DON'T copy followups to me -- I'll assume it wasn't posted to the grou
> p.
> 
> 
--
Mark Andrews, Internet Engines Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at iengines.com