[NTLUG:Discuss] DNS help

Bug Hunter bughuntr at one.ctelcom.net
Fri Aug 10 10:02:33 CDT 2001


 I had a similar problem with Mae East recently.  I think that some of the
top level servers are not being handled well.



On Sun, 5 Aug 2001, Chris Cox wrote:

> The situation, my DNS authority for my domain has a record that
> gets cached correctly on others DNS servers sometimes... but most
> of the time, a different IP addressed gets cached... clear up
> to the root... even though they all see my DNS provider as
> being the authority for the domain.
> 
> So occasionally, I see the right address in @home's DNS, and
> sometimes the wrong one.
> 
> My guess is that the other DNS is stating that it has authority
> records for the domain.... and for whatever reason (TTL or
> otherwise), most people end up caching the bad record instead
> of the one coming from the true authority for the domain.
> 
> Any clues... without having access to DNS records directly...
> of how to track down the host that is causing the problem
> in DNS??
> 
> I have examined the DNS from our hoster... the records look
> fine (requested a zone xfer to examine the records).  I have
> found another site that claims to have authority
> records (which is wrong of course), but their records
> are fine, though redundant with ours.
> 
> I have an outstanding call to Network Solns to help solve this
> issue.  No one associated with the domain during its lifetime
> remembers anyone else possibly having authoratative records
> for the domain.
> 
> The TRUE provider of DNS records for the domain, cleared out
> all of their entries.  As one would expect, gradually DNS
> servers deferred up the ladder until eventually it was
> only cached at the root server level... then eventually
> it did not show up at all (which is what you would expect
> after TTL experiation).  That experiement did not reveal
> anything to us.... so they put the records back in.  The
> right address was cached correctly by some, then the
> wrong address (the address is nowhere to be found in thier
> DNS files btw) started getting cached again... sigh.
> 
> How do I track down a site that is portraying bad records
> of authority for my domain??
> 
> Any thought or ideas?
> Chris
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