[dns-operations] RCODE for bogon answers

Sean Donelan sean at donelan.com
Thu Oct 11 16:45:48 UTC 2007

On Tue, 9 Oct 2007, Paul Vixie wrote:
>> Since its becominging more common to have more administrative controls
>> on local name servers, such as bogon and name filters, what is the
>> recommended RCODE for queries denied by policy filters?
>> The obvious choice is RCODE=5 (Refused).  But that seems to confuse
>> a lot of clients.
> as would any new RCODE.

Then would the best practice be to return the equivilent of NXDOMAIN
for things blocked by name server policy?

More information about the dns-operations mailing list