Just noticied a weird behaviour of dns?.name-services.com nameservers.
Here it goes (there are several problems, pls read the whole this
And this is Very Wrong (tm):
In short: for *some* types of records for a valid name, the server
returns NXDOMAIN, which it should not be.
Obviously, when doing this query using a caching nameserver, the
cache gets poisoned (remembering that the domain in question
does not exists, as opposed to "No data of requested type"
Another example for a domain hosted by them:
This happens with CNAME and A records so far, eg asking for
AAAA record returns proper reply with empty answer section.
And here's another brokeness:
It returns "proper" (fsvo) reply but with wrong ID.
Reportedly there's some (pretty legal) query which returns SERVFAIL
but I can't reproduce it now.
All dns?.name-services.com behaves the same way.
I think it should be fixed ASAP..