On 27/10/2006 3:52 p.m., Peter Mott wrote:

On 27/10/2006, at 3:23 PM, Mark Foster wrote:

Ask them do a whois on the domain, and then point out that if they are
carrying Authoritive NS records for a domain which the rootservers are
pointing elsewhere - whois tells you this - they are breaking the DNS.


One could also encourage folks to use different name servers for  
caching and not allow recursion on their authoritative servers.  That  
way if they claim to be authoritative and they are no longer, nobody  
cares.

I believe this is now considered best practice :^)

I seem to remember having a discussion about this very thing with a  
large provider about 6 years ago and they were not interested in any  
form of co-operation that would prevent client internet experience  
being broken when a change of delegation took place.  They didn't  
have the capacity to understand the problem let alone a resolve to  
solve it.

That sounds exactly like the discussion we had with them...

Thanks for the feedback, much appreciated - I'll ask them again then.

Regards,
Gerard