Bizarre DNS Problem - Now you see it, now you don't ...

[Mark.Andrews at nominum.com]

> > Most likely a problem withthe delegation or a secondary nameserver not
> > obtaining an updated zone.
> 
>     I have not had this problem before, so it should not be a secondary name
> server problem.  Besides, evern if it were a secondary nameserver problem,
> it would not explain the scenario (1 hour I can access the domain, the next,
> I can't)
> 
> > If you had posted your real domainname (and
> > some info on which your nameservers are, which their IP addresses (old and
> new) etc)
> > one could check this out. W/o this info: guesswork at best, and one does
> not like to speculate.
> 
>     You could help me by telling me how you might "check this out" .
> Besides, it saves you the trouble.

	You check for consistancy in the delegation.

	All parent servers with the same NS RRset.
	All child servers with the same NS RRset.
	The parent and child zones have the same NS RRset.
	All the child servers giving authoratative answers.

> 
> -James
> 
> 
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com