At Fri, 1 Mar 2019 15:54:39 -0500,
Dave Lawrence wrote:
> > I'm not sure a standards track document that updates RFC 1034/1035
> > should be recommending a minimum TTL.
>
> As previously noted, we're making no such recommendation and that will
> be clarified. The first definition of "resolution
On 6 Mar 2019, at 11:27, Dave Lawrence wrote:
> Joe Abley writes:
>> if you can find a set of DNS authority servers that silently
>> discards a particular kind of query, sending such queries through
>> resolvers that are known to support serve-stale might suppress other
>> queries and trigger the
Joe Abley writes:
> if you can find a set of DNS authority servers that silently
> discards a particular kind of query, sending such queries through
> resolvers that are known to support serve-stale might suppress other
> queries and trigger the serve-stale behaviour even though the
> authority ser
Tony Finch writes:
> This sounds like it will lead to stale answers being given instead of
> re-trying other potentially working servers.
The document is explicit that you need to keep trying to get an
answer, so if an implementation is not retrying other potentially
working servers that is its ow
Joe Abley wrote:
>
> How recently should a server have been checked and found not to respond
> to conclude that it's unresponsive? What does unresponsive mean?
> Presumably this involves a timeout; how long? Perhaps these questions
> are already answered in practice by existing implementations, bu
On 06.03.19 15:37, Joe Abley wrote:
> if you can find a set of DNS authority servers that silently discards
> a particular kind of query, sending such queries through resolvers
> that are known to support serve-stale might suppress other queries
> and trigger the serve-stale behaviour even though
On 6 Mar 2019, at 08:03, Tony Finch wrote:
> Dave Lawrence wrote:
>
>> REFUSED is slightly murkier as to its exact meaning, thanks to
>> overloading, but in its most commonly seen usage for lameness
>> indicates a clear problem with the delegation. Even in its other use
>> cases, notably an ED
Dave Lawrence wrote:
> REFUSED is slightly murkier as to its exact meaning, thanks to
> overloading, but in its most commonly seen usage for lameness
> indicates a clear problem with the delegation. Even in its other use
> cases, notably an EDNS Client Subnet error or an actual "I am
> authorita
