mailing list archives
Re: Open Resolver Dataset Update
From: Tom Laermans <tom.laermans () phyxia net>
Date: Mon, 08 Apr 2013 09:08:41 +0200
On 7/04/2013 19:46, Jared Mauch wrote:
What is the rationale behind listing servers not providing recursion on
a list of open resolvers?
I've continued to update my dataset originally posted about two weeks ago. Please take a moment and review your CIDRs
which may be running an open resolver.
I've exposed one additional bit in the user-interface that may be helpful. Some DNS servers will respond with RCODE=0
(OK) but not provide recursion. nearly 90% of the servers in the database provide recursion.
As far as I know, responding either NOERROR or REFUSED produces packets
of the same size.