If what they are doing is not ok, what would you propose? Leaving dns hanging when domain is expired is not right either. Deleting domains when some other domain is using dns host in it, will cause problems for registry. They are doing best they can - fast rename and delete domain, then slow notification, change of dns for other domains and delete the glue. The way it should work is to have central notification system for all top-level domains and country domains - if dns host is to be deleted, system notifies all zone operators, they check if they have any domains using those dns hosts and delete hosts from under those domains. Once ack is received from everybody (or notification time expires), the host glue is deleted. The problem is that this deletion process takes longer then standard domain deletion and for all registries the time and procedures to delete the domains are different that is why central system does not seem to work. On Mon, 16 Jun 2003, John Brown wrote:
so i've been doing a bit more research on this.
NSI has *.lame-delegation.org which is used on zones where selected or all NS are not valid for a zone.
some zones have a lame-delegation.org NS listed *AND* a NS that is answering for the zone.
most zones have all NS's listed as lame-delegation.org
Big deal you say, who cares....
The side affect is that a good chuck of glue records are listed in the the gTLD DNS servers with NS's and IP's that are basicly invalid.
In looking at a single /19 used by Rackspace.com, there are 559 NS's listed using IP's from that /19.
Of those 559 NS's over 20 are IP's tagged as *.lame-delegation.org.
What happens if someone sets up a service on those IP's and a "quasi" lame zone gets a flood of traffic??
That poor customer is going to see a flood of DNS traffic.
Hosting providers may not be aware that THEIR IP space is being "renamed" and listed for things they don't have control over.
My thoughts are that if a registry as a NS that is not proper for a zone, that it should be REMOVE from the zones NS set.
If there are no valid NS's for a zone, then the registry should REMOVE the zone from the DNS.
Otherwise the registry zones will just grow with random glue
The other registries and registrars are doing similar things, but different names....