Re: [DNSOP] [Ext] Lameness terminology (was: Status of draft-ietf-dnsop-terminology-bis)
John Kristoff <jtk@depaul.edu> Fri, 04 May 2018 01:06 UTC
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Date: Thu, 03 May 2018 20:06:02 -0500
From: John Kristoff <jtk@depaul.edu>
To: Amreesh Phokeer <amreesh.phokeer@gmail.com>
Cc: Edward Lewis <edward.lewis@icann.org>, Shane Kerr <shane@time-travellers.org>, "dnsop@ietf.org" <dnsop@ietf.org>
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Subject: Re: [DNSOP] [Ext] Lameness terminology (was: Status of draft-ietf-dnsop-terminology-bis)
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On Thu, 3 May 2018 06:12:42 +0000 Amreesh Phokeer <amreesh.phokeer@gmail.com> wrote: > We consider "lame" any NS which is either: > - Not responding at all. > - Responding in some way, but not for the specific domain queried. > - Responding for the correct domain, but without the authority bit set. Friends, I've been referring to a class of problems I call DNS Inconsistency. This can be thought to be a bit broader in scope than what is typically meant by a delegation, but it is related. I'm particularly interested in parent/child NS RRset consistency at the moment and I recently compiled this list of possible NS RR results when considering what may happen as one might try to traverse a graph to a domain name node. Imperfect list, classifications, and severity perhaps, but maybe stimulates more useful discussion than it does detract from it. --- some amount of broken --- error | bad type (e.g. CNAME) error | bad rdata (e.g. IPaddr for NS) error | TTL disagreement in the NS RRset error | DNSSEC validation error error | timeout/unreachable transient (e.g. down time) error | timeout/unreachable permanent (e.g. misconfiguration) query_response | NXDomain query_response | REFUSED query_response | SERVFAIL / FORMERR / NOTIMP / etc... query_response | referral after a referral query_response | aa==0 when aa==1 expected query_response | malicious or incorrect rdata --- properly formed answer, but not yet provably correct --- name | maps to an ipv4addr name | maps to an ipv4addr set name | maps to an ipv6addr name | maps to an ipv6addr set name | maps to an ipv4addr + ipv6addr name | maps to an ipv4addr set + ipv6addr name | maps to an ipv4addr + ipv6addr set name | maps to an ipv4addr set + ipv6addr set John
- [DNSOP] Status of draft-ietf-dnsop-terminology-bis Paul Hoffman
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Matthijs Mekking
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Matthew Pounsett
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Paul Vixie
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Matthijs Mekking
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Stuart Cheshire
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… John Dickinson
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Paul Hoffman
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Paul Hoffman
- Re: [DNSOP] Status of draft-ietf-dnsop-terminolog… Paul Hoffman
- [DNSOP] Lameness terminology (was: Status of draf… Shane Kerr
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Edward Lewis
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Amreesh Phokeer
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… David Huberman
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Mark Andrews
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… David Huberman
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Bill Woodcock
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Frederico A C Neves
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Mark Andrews
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… David Huberman
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Mark Andrews
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… David Huberman
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Mark Andrews
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Bill Woodcock
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Bill Woodcock
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Bill Woodcock
- Re: [DNSOP] Fixing lame delegations Paul Hoffman
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Mark Andrews
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Mark Andrews
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… John Kristoff
- Re: [DNSOP] [Ext] Lameness terminology Paul Vixie
- Re: [DNSOP] [Ext] Lameness terminology Shane Kerr
- Re: [DNSOP] [Ext] Lameness terminology Shane Kerr
- Re: [DNSOP] [Ext] Lameness terminology Matthew Pounsett
- Re: [DNSOP] [Ext] Lameness terminology (was: Stat… Edward Lewis
- Re: [DNSOP] [Ext] Lameness terminology Joe Abley
- Re: [DNSOP] [Ext] Lameness terminology Joe Abley
- Re: [DNSOP] [Ext] Lameness terminology Edward Lewis
- Re: [DNSOP] [Ext] Lameness terminology Paul Hoffman
- Re: [DNSOP] [Ext] Lameness terminology Edward Lewis