Originally Posted by TenTenths
It's fully logical assuming you know how DNS is supposed to work.
Well I guess I know, how DNS is supposed to work and I'am aware that DynDns etc are working like this.
But what I mean is that, assuming you know how DNS is supposed to work ,
the caching name servers will still request the Zone files from the authoritive Server, until they recieve an update saying, the zone is not hosted there anylonger,
So it fail fail for the request to
have the traffic diverted from down hosts
And in this case I just think that it takes quite a long time until the requests won't result in a (NXDOMAIN) anymore