Re: [DNSOP] Prefixed name spaces and DANE client TLSA

2016-01-14 Thread Rob Austein
[Commenting only on technical aspect of the name structure --
discussion of whether the namespace is cluttered, pretty, intuitive,
etc, are too abstract for me.  Not making light of user confusion
issues, just recusing on them.]

I would recommend that you think about how any of these proposed
schemes interact with DNS wildcards.  Yes, some people use wildcards
with TLSA RRs, or even with CNAME RRs pointing to TLSA RRs: this
allows one to express "every service on machine foo.example.org uses
the same certificate" concisely.

So if one buys George's analysis of this as a role vs protocol
distinction, the question becomes whether it's more useful to be able
to group by roles or by protocols.  That is, are you more likely to
want to say "all roles for protocol foo use the same certificate",
"all protocols for role foo use the same certificate", or just not
allow any kind of grouping here at all.  The first of these makes the
most sense to me, YMMV.

Wildcards are probably also the main technical reason for caring about
differences between the naming for TLSA and SRV RRs.

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Re: [DNSOP] [internet-dra...@ietf.org: New Version Notification for draft-sullivan-dns-class-useless-01.txt]

2016-03-15 Thread Rob Austein
At Tue, 15 Mar 2016 21:24:53 -0400, Andrew Sullivan wrote:
> 
> On Wed, Mar 16, 2016 at 12:20:40PM +1100, Mark Andrews wrote:
> > It's more that the registry failed to scoop up all the old definitions.
> 
> Perhaps.  The documentation I could find for chaosnet is pretty thin,
> and STD 13 is pretty clear that A records are only defined for IN.

RFC 882, page 10; RFC 1034, page 13.

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Re: [DNSOP] [internet-dra...@ietf.org: New Version Notification for draft-sullivan-dns-class-useless-01.txt]

2016-03-19 Thread Rob Austein
At Thu, 17 Mar 2016 11:24:57 +1100, Mark Andrews wrote:
> In message <20160316235134.gi1...@mx2.yitter.info>, Andrew Sullivan writes:
> > 
> > I'm apparently having a hard time reading this month :-/ But your
> > point makes the problem yet worse, since there's no sense that in
> > the CS net class here the RDATA of an A record is a host address.
> > I suppose that, since it's in 882 (which is obsoleted) that
> > doesn't matter.

RFC 973 deprecated the CS class.

> > But in CH according to the definition it's not just a host
> > addressm but "a domain name followed by a 16 bit" address.  (Maybe
> > that actually means that the domain name is not in the RDATA.  Since
> > I'm having so much trouble reading this month, it's probably better
> > that I not form an opinion.)
> 
> RFC 1034 has:
> 
>   Similarly we might see:
> 
>   XX.LCS.MIT.EDU. IN  A   10.0.0.44
>   CH  A   MIT.EDU. 2420

>From which point people with sufficiently long memories can probably
tell you whose fault this is.

PVM and I came up with the CH class A RDATA layout over lunch one day
in 1985 when he happened to be visiting LCS.  Chaosnet is strictly a
LAN protocol (well, OK, if anybody had ever actually implemented
anything using IP protocol number 16, it would have been an Internet
protocol running somewhere around OSI layers 4+5, but I digress), so
the idea was that the RDATA contains a DNS name naming the LAN and a
16-bit address naming the node on that LAN.  We already had CS A RRs
as a precedent for class-specific RDATA, so we just followed that.

This was long enough ago that Chaosnet was in much wider use within
MIT than TCP/IP, and it was not yet a foregone conclusion that the
Internet would grow to subsume all other networking technologies on
the planet.  So we were trying to plan ahead.  Then stuff happened.

MIT's Chaosnet ended up sticking with host tables until we shut it
off, so we never did implement this in JEEVES or CHIVES.  Symbolics
may have gotten as far as using CH A RRs as one of the many inputs to
their Namespace system, but that was pretty late in their corporate
life cycle, so I doubt many users ever saw it in the wild.

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Re: [DNSOP] the Chaosnet installed base

2016-03-19 Thread Rob Austein
At Thu, 17 Mar 2016 08:21:06 +, Jim Reid wrote:
> 
> Though IIRC, a handful of universities dabbled with Hesiod in the
> late 80s or theresabouts and that used the Chaosnet Class. That
> stuff should be long dead and buried by now.

No, that was yet another class, HS.

Hesiod was an MIT Project Athena thing, and arguably was the first
example of "screw it, just encode it in DNS TXT RRs" syndrome.  IIRC
the only RR types ever used in class HS were NS, TXT, and (maybe) A; I
have a vague recollection that they just looked for IN A RRsets
corresponding to the names in the RDATA of HS NS RRs.  And yeah, a few
other universities did pick up Hesiod, but I'd be astonished if there
were any surviving instances today.

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Re: [DNSOP] AAAA4Free

2016-04-11 Thread Rob Austein
At Mon, 11 Apr 2016 15:54:05 +0200, Shane Kerr wrote:
> At 2016-04-08 11:28:12 -0300 Ray Bellis  wrote:
> 
> > May I please remind the WG of draft-bellis-dnsext-multi-qtypes-01
> 
> I note that your idea was about 3 years ago. When it was mentioned,
> Alfred Hönes noted his ideas about his presented 3 years before that.
> My guess is that we could probably go back and every 3 or 4 years find
> a similar proposal. :)

Going back at least to the mid '90s, yes.  Don't recall whether this
came up in the '80s. :)

As I recall, the thing that stopped this every time was lack of
consensus on pesky details such as "to which QNAME does the RCODE
apply when this fails" and "to which QNAME does the AA bit apply?"

It's possible that DNSSEC-aware stub resolvers would provide some
leverage here, since fields like RCODE and the AA bit are somewhat
redundant if one can just check the freaking signatures.

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Re: [DNSOP] AAAA4Free

2016-04-11 Thread Rob Austein
At Tue, 12 Apr 2016 00:01:20 +, Evan Hunt wrote:
> 
> So, unless I'm missing something (certainly more than possible), I don't
> see server workloads or client latency being significantly reduced by the
> deployment of a mechanism like this.

Bingo.

Also keep in mind that A and  for the same QNAME are in the same
zone, so by the time you've fetched (and validated, I hope) the chain
all the way down to one of them, you've done almost all of the work
involved in fetching (...) the other one.

I remain skeptical of the claim that the round trip time to the
iterative resolver is the critical factor.  Or, to put it another way,
if that's the critical factor, you almost certainly have other
problems that a multiple query hack isn't going to solve.

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Re: [DNSOP] Feedback on draft-koch-dnsop-resolver-priming

2007-05-10 Thread Rob Austein


My co-chair has recused himself from WG chair issues related to this
draft, for the obvious reason.

If I understood M. Moreau's message, he is not making any IPR claims
against anything covered in Peter's current draft.  Rather, he is:

a) Suggesting that Peter incorporate an idea discussed in one of his
   own drafts;

b) Claiming that he has an IPR interest in the idea he is suggesting
   that Peter incorporate into Peter's draft,

c) Making some non-binding comments about what he might do in the
   future if his IPR claims are held to be valid, and

d) Stating that he will file a formal IPR statement at some future
   date.

With no disrespect to M. Moreau intended, and without expressing any
opinion on the validity of M. Moreau's claims, the suggestion seems
only peripherally related to the main purpose of Peter's draft, and I
see no pressing need for the WG to dive into the IPR rathole without
having even explored any other alternatives.

Absent strong support from disinterested WG participants for having
Peter's draft explore M. Moreau's putatively encumbered idea, I will
direct Peter to decline M. Moreau's suggestion, at least until
M. Moreau has filed his IPR statement and it is possible for a
disinterested person to reach an independent opinion on the extent,
relevance, and validity of M. Moreau's IPR claims.



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[DNSOP] Adopt draft-koch-dnsop-resolver-priming as WG work item?

2007-06-02 Thread Rob Austein


  This is a call to confirm the decision made at the face to face WG
  meeting in Prague to adopt draft-koch-dnsop-resolver-priming.
  Discussion in Prague showed reasonably strong support and no
  objections, but as always, decisions at face to face meetings are
  subject to confirmation on the mailing list.

  Absent strong objections, I'll ask Peter and his co-author (to be
  appointed, we already have a list of volunteers) to submit the next
  version as draft-ietf-dnsop-resolver-priming-00.

  Please send any comments on this subject within the next week, so
  that Peter and his co-author have time to rev the document before
  the 2 July submission cutoff.



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Re: [DNSOP] Adopt draft-koch-dnsop-resolver-priming as WG work item?

2007-06-04 Thread Rob Austein
At Mon, 04 Jun 2007 13:18:25 -0400, Thierry Moreau wrote:
> 
> Is this a genuine invitation for open participation, or are the wg 
> activities subject to the arbitrary censorship directive issued earlier 
> by you (ref 
> http://www1.ietf.org/mail-archive/web/dnsop/current/msg05460.html)?

http://en.wikipedia.org/wiki/Mu_%28negative%29

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Re: [DNSOP] draft-ietf-dnsop-respsize-07

2007-06-07 Thread Rob Austein
At 07 Jun 2007 05:38:19 +, Paul Vixie wrote:
> 
> [EMAIL PROTECTED] (Andrew Sullivan) writes:
> 
> > I note that in section 2.2.3, we have this:
> >
> >A zone's name servers should be reachable by all IP transport
> >protocols (e.g., IPv4 and IPv6) in common use.
> > 
> > I have read differing opinions on whether it is better to have
> > protocol-dedicated servers (on the grounds that it makes
> > troubleshooting in a world of poorly implemented dual stacks easier)
> > or to have all-protocol name servers.  I think therefore that the
> > reasoning for the above claim should be spelled out in more detail.
> 
> what i meant was that a zone should have servers reachable by every
> IP transport protocol in common use, in order that the zone be reachable
> by all DNS initiators no matter what IP transport protocol they're using.
> 
> i can see that the writing as quoted above is sloppy, and doesn't say what
> i thought it said, and i can clean it up if the WG thinks it's important.



I think that clarifying this would be advisable, as the present
wording is subject to misinterpretation.  Given how long the WG has
spun on this draft, I'd recommend doing it just by proposing a
replacement for the sentence quoted above, getting agreement on the
list that it says what you meant it to see, but holding off on
spinning a revised draft until any other comments are in, and
restricting the subsequent revision to changes already discussed on
the list, otherwise we'll still be at this next year.

Pedantic nit while we're at it: while I understand your use of the
term "transport protocol" here, it's at odds with conventional use of
the term in the IETF.  You're talking about transport over multiple
versions of IP (ie, multiple protocols at layer 3, not layer 4).
Don't know whether it's worth trying to fix that while at this.



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Re: [DNSOP] Adopt draft-koch-dnsop-resolver-priming as WG work item?

2007-06-08 Thread Rob Austein
I don't usually bother with refuting slander against me, as I have
better things to do with my time than argue with fools, but one
specific point in a recent posting does call for a response to the WG:

At Wed, 06 Jun 2007 17:34:38 -0400, Thierry Moreau wrote:
> 
> I bring your attention to the common affiliation of Mr. Rob Austein and 
> Mr. Paul Vixie to ISC, and the subordination relationship that can be 
> inferred from Mr. Paul Vixie's position as ISC president.

Paul has never tried to control what I do as DNSOP WG co-chair, and
clearly understands the obligations that go with my position.  Paul
also knows me well enough to know that I'd tell him to go to hell if
he ever did try to keep me from performing my duty as I see it, but
the issue has never come up and I don't expect it ever will.

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Re: [DNSOP] Adopt draft-koch-dnsop-resolver-priming as WG work item?

2007-06-12 Thread Rob Austein


At Sat, 02 Jun 2007 18:15:04 -0700, I wrote:
> 
>   This is a call to confirm the decision made at the face to face WG
>   meeting in Prague to adopt draft-koch-dnsop-resolver-priming.
>   Discussion in Prague showed reasonably strong support and no
>   objections, but as always, decisions at face to face meetings are
>   subject to confirmation on the mailing list.
> 
>   Absent strong objections, I'll ask Peter and his co-author (to be
>   appointed, we already have a list of volunteers) to submit the next
>   version as draft-ietf-dnsop-resolver-priming-00.
> 
>   Please send any comments on this subject within the next week, so
>   that Peter and his co-author have time to rev the document before
>   the 2 July submission cutoff.

  The stated interval having passed without any anyone posting an
  objection to adoption, the decision made in Prague stands.

  We were fortunate to have several volunteers for the role of
  co-author.  From that pool I've selected Matt Larson to work with
  Peter on this draft.



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Re: [DNSOP] Adopt draft-koch-dnsop-resolver-priming as WG work item?

2007-06-13 Thread Rob Austein
At Tue, 12 Jun 2007 20:47:57 -0400, Thierry Moreau wrote:
> 
> Now that the draft-koch-dnsop-resolver-priming is adopted as as WG work 
> item, and that an IPR disclosure has been filed [2], I would request Rob 
> to revisit his (premature) directive regarding this work [3], and 
> retract it. Thanks for looking into this.



  To date I have seen no support for M. Moreau's suggestion from
  anyone other than M. Moreau, nor have I seen anyone other than
  M. Moreau disagree with my analysis that his suggestion is only
  peripherally related to the topic of Peter's draft.

  If anyone other than M. Moreau -does- wish to see Peter's draft
  incorporate M. Moreau's suggestion, please say so, and state:

  a) Why you think that the topic belongs in this draft, and

  b) Whether M. Moreau's IPR disclosure addressess whatever concerns
 (if any) you might have with respect to the IPR issues related to
 M. Moreau's suggestion (if you have no IPR concerns, say so).



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Re: [DNSOP] Request for IETF69 DNSOP Agenda Items

2007-08-05 Thread Rob Austein
At Fri, 6 Jul 2007 11:45:25 -0400 (EDT), Dean Anderson wrote:
> 
> I would like to have the WG discuss taking up my draft 
> (draft-anderson-reverse-dns-status) as a WG document.
> 
> Thanks,
> 
>   --Dean



  Per Dean's request, I asked those WG participants who were present
  at the Chicago meeting two questions:

  Q1) How many had read Dean's draft?

  A1) 12 people claimed to have read Dean's draft.

  Q2) Of those who had read Dean's draft, how many supported adoption as
  of Dean's draft as a WG document instead of
  draft-ietf-dnsop-reverse-mapping-considerations

  A2) Nobody present in the room supported adoption of Dean's draft.

  As with any decision made at a face to face meeting this is not
  official until confirmed on the mailing list.  So if there is anyone
  who:

  1) Has read Dean's draft, and

  2) Supports WG adoption of Dean's draft,

  please speak up.  The chairs will assume that Dean himself has read
  and supports his own draft.  Anybody else?

  Silence will be taken as confirmation of the tentitive decision from
  the face to face meeting, as will off-topic postings.  So if you
  want the WG to adopt this draft, please say so calmly and
  distinctly.

  Cut-off for this confirmation call will be 00:00:00 UTC on 19 August
  2007.  This is longer than I would ordinarily wait for a
  confirmation call, but many people take holidays in August, and Dean
  has done the right thing here by offering the WG an alternative
  draft for consideration rather than just complaining about the draft
  that he opposes, so I want to make sure that Dean's alternative
  draft gets a fair chance.



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[DNSOP] Confirmation of Chicago decision on draft-anderson-reverse-dns-status

2007-08-05 Thread Rob Austein
[Resending with fixed subject line, sorry for the duplication --sra]

At Fri, 6 Jul 2007 11:45:25 -0400 (EDT), Dean Anderson wrote:
> 
> I would like to have the WG discuss taking up my draft 
> (draft-anderson-reverse-dns-status) as a WG document.
> 
> Thanks,
> 
>   --Dean



  Per Dean's request, I asked those WG participants who were present
  at the Chicago meeting two questions:

  Q1) How many had read Dean's draft?

  A1) 12 people claimed to have read Dean's draft.

  Q2) Of those who had read Dean's draft, how many supported adoption as
  of Dean's draft as a WG document instead of
  draft-ietf-dnsop-reverse-mapping-considerations

  A2) Nobody present in the room supported adoption of Dean's draft.

  As with any decision made at a face to face meeting this is not
  official until confirmed on the mailing list.  So if there is anyone
  who:

  1) Has read Dean's draft, and

  2) Supports WG adoption of Dean's draft,

  please speak up.  The chairs will assume that Dean himself has read
  and supports his own draft.  Anybody else?

  Silence will be taken as confirmation of the tentitive decision from
  the face to face meeting, as will off-topic postings.  So if you
  want the WG to adopt this draft, please say so calmly and
  distinctly.

  Cut-off for this confirmation call will be 00:00:00 UTC on 19 August
  2007.  This is longer than I would ordinarily wait for a
  confirmation call, but many people take holidays in August, and Dean
  has done the right thing here by offering the WG an alternative
  draft for consideration rather than just complaining about the draft
  that he opposes, so I want to make sure that Dean's alternative
  draft gets a fair chance.



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Re: [DNSOP] Confirmation of Chicago decision on draft-anderson-reverse-dns-status

2007-08-20 Thread Rob Austein


  The 19 August cut-off having passed, and having seen no support for
  WG adoption of draft-anderson-reverse-dns-status from anyone but the
  draft's author, the Chicago decision not to adopt the draft stands.



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Re: [DNSOP] Rude legalese phone call, possibly related to "patent infringement"

2008-10-27 Thread Rob Austein


  Ok, that's enough.

  Todd, you have made your point that you believe you have IPR in this
  space.  Noted.

  Now everyone please stop this, immediately.  This is not a forum for
  legal debates, let alone insults, and claims that Todd might or
  might not have against various implementors are between him and the
  implementors, to be settled elsewhere.

  Stop, now.


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Re: [DNSOP] Review of draft-livingood-dns-redirect-00

2009-07-26 Thread Rob Austein
Having just gone through this entire thread again as prep for
tomorow's WG meeting, I have a few minor comments that attempt to
answer a few of the dangling questions:

1) Stephane is correct that 

   http://www.iab.org/documents/docs/2003-09-20-dns-wildcards.html

   is talking about wildcards rather than redirect, but is (IMHO)
   wrong that in saying that this makes it irrelevant.  That document
   includes a non-exhaustive list of things that were seen to break
   when RCODE 3 responses suddenly turned into redirections to an
   unexpected location.  While the mechanism involved was different,
   many of the effects are the same regardless of the mechanism, so
   that list may provide a partial answer to Jason's request for
   information about things that redirection hacks break.

2) Without getting into whether one -should- do any of this, I don't
   think the DNSSEC "workaround" for validating stub resolvers even
   "works" (please don't give me a hard time about that word in this
   context) at a technical level.  Others have hinted at this but not
   stated the reason, so, at least for Jason's benefit, here it is:
   unless I'm confused, this hack only "works" if the redirector
   strips off -all- DNSSEC data in -all- traffic to this resolver and
   replaces it with its own.  In other words, this hack pretty much
   requires sign-on-the-fly for all DNSSEC traffic, which is unlikely
   to scale well.  It also reduces the entire function of DNSSEC in
   this context to a weird and not very efficient form of channel
   security, and it seems unlikely that anyone would choose to get
   channel security this way.

3) As far as I can recall there is no explicit prohibition against
   modifying DNS data in transit in any standards track RFC, but
   there's something pretty close in an RFC old enough that it
   predates the current standards process.  See RFC 973, specifically
   the section "Making up data".  It doesn't talk about DNS redirect
   per se, but the overall intent seems reasonably clear (YMMV).

--Rob
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Re: [DNSOP] Fwd: New Version Notification for draft-perreault-dnsop-stats-mib-00.txt

2012-04-24 Thread Rob Austein
At Tue, 24 Apr 2012 08:51:46 -0400, Simon Perreault wrote:
> We have just submitted a new draft about a DNS server stats MIB.
> Any feedback would be appreciated!

If you haven't already read RFC 3197, please do so.  It's short.
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