On 01May23, John Kristoff apparently wrote:
> (usually due to a bad configuration)

Was any "lame" situation defined which wasn't the result of a bad configuration?

As I understand it from this discussion, all "lame" delegations require a 
config change to
rectify, but not all mis-configurations imply lameness.

Lameness is that subset of configuration errors detected in a response returned 
during the
normal course of resolution which directly stalls or thwarts resolution.

Point being that there are many mis-configurations which do not stall or thwart 
resolution
such as a missing AAAA from one NS or mis-matched SOAs. These are not 
considered lame.

And there are some mis-configurations which *indirectly* stall or thwart 
resolution which
are also not considered lame.

The scenario I have in mind is the classic zone transfer failure due to ACLs. 
The new zone
has a changed address for one of the auths. The result being that the 
un-updated auth
continues serving the old address record which no longer has anything listening 
for DNS
queries.

Since authoritativeness or otherwise of answers from this old address cannot be
ascertained due to unresponsiveness, this is not considered a lame scenario 
which I find
unfortunate but understandable.

In summary, lameness appears to be a very specific set of resolution symptoms 
due to a
subset of configuration errors.


Mark.

_______________________________________________
DNSOP mailing list
DNSOP@ietf.org
https://www.ietf.org/mailman/listinfo/dnsop

Reply via email to