On 2016-08-29 5:47 PM, Chris Adams wrote:
Once upon a time, Mark Andrews <ma...@isc.org> said:
The following is general and is not directed at Cloudflare. I know
some people don't think errors in the reverse DNS are not critical
but if you are delegated a zone it is your responsablity to ensure
your servers are correctly serving that zone regardless of where
it is in the DNS heirarchy. Failure to do that causes additional
work for recursive servers. If you don't want to serve a zone then
remove the delegation.
You are assuming that an authoritative server operator has some way to
know all the zones people delegate to their servers, and remove such
delegations if they don't want to handle them. That is a wrong
assumption.
Even more generally is that your authoritative server should respond to
anything it is asked with an appropriate answer. Dropping/filtering can
lead to bad situations.
