Re: [DNSOP] Request to adopt draft-sotomayor-as112-ipv4-cull as WG item

2012-04-26 Thread William F. Maton Sotomayor


Alright, some time on my plate ...

On Wed, 4 Apr 2012, Joe Abley wrote:



On 2012-04-04, at 08:20, William F. Maton Sotomayor wrote:


It seems that after delivering my presentation on subsequent AS112
delegations in Quebec City, I hadn't recalled what the group thought about
adopting this work as a dnsop item. So, I'm soliciting feedback on this
request.  I have posted version 03 for your consideration.


I think that we need a better mechanism to avoid lame delegations to the AS112 
servers, given their loosely-coordinated nature. The add/drop problem for those 
servers (the difficulty in requesting zone changes across from a potentially 
wide and unknown population of server administrators, and being effectively 
unable to measure whether those changes are complete) is a fundamental weakness 
in the 112 project as it is operated today.

I like the idea that came up in Québec (which I shall attribute to Warren 
Kumari since I've seen other people do that, although I was not in the room at 
the time) that the add/drop problem is a lot simpler if every AS112 node hosts 
the zone


+1.  It's needs more testing admittedly, and I think having an extra 
prefix as a test to demonstrate how it would work would be beneficial 
before operational roll-out, but I'm getting way ahead of this already.
As George subsequently stated, there needs to be a deletion process just 
as there's a removal process.



- update RFC 6304 and 6305 as necessary
- write something that cleans up and unifies the various registries that 
currently contain RFC 6303-like names, with appropriate IANA actions (ipv4-cull 
contains some references in section 2, see also 
draft-cheshire-dnsext-special-names)
- write something that provides guidance for future document authors on when they should specify an 
IANA action to add a new zone to the grand unified as112 registry and cause a delegation to 
something and sensible to happen.

This document (as112-cull) attempts to do some of this work, but I don't see a 
reason to bite off small mouthfuls if we can expend a small amount of extra 
effort and eat the whole sandwich at once.


Yeah, cull is actually part I of II, the second draft was destined to 
include a process for adding/removing plus maintaining AS112 servers in 
general, an exposition on lameness in AS112, etc.  But that can be rolled 
into a possible bis.



I am very happy to spend time on this.


I as well.

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Re: [DNSOP] Request to adopt draft-sotomayor-as112-ipv4-cull as WG item

2012-04-11 Thread Warren Kumari

On Apr 4, 2012, at 8:41 AM, Joe Abley wrote:

 
 On 2012-04-04, at 08:20, William F. Maton Sotomayor wrote:
 
  It seems that after delivering my presentation on subsequent AS112 
 delegations in Quebec City, I hadn't recalled what the group thought about 
 adopting this work as a dnsop item. So, I'm soliciting feedback on this 
 request.  I have posted version 03 for your consideration.
 
 I think that we need a better mechanism to avoid lame delegations to the 
 AS112 servers, given their loosely-coordinated nature. The add/drop problem 
 for those servers (the difficulty in requesting zone changes across from a 
 potentially wide and unknown population of server administrators, and being 
 effectively unable to measure whether those changes are complete) is a 
 fundamental weakness in the 112 project as it is operated today.
 
 I like the idea that came up in Québec (which I shall attribute to Warren 
 Kumari since I've seen other people do that, although I was not in the room 
 at the time) that the add/drop problem is a lot simpler if every AS112 node 
 hosts the zone

Yah, guilty as charged, although you may be thinking that I had thought this 
through more / wasn't just spouting the first thing that came into ma heid...

 
  $ORIGIN .
  @ SOA ...
NS something
NS sensible
 
 and answers authoritatively on the addresses corresponding to something and 
 sensible, returning NXDOMAIN for everything in the entire namespace apart 
 from . (for which they ought never receive queries anyway). This is ugly to 
 some eyes, but it works for domainers and it ought to work for us too. Any 
 zones that were subsequently delegated to something and sensible (e.g. as 
 part of an IANA action) would be immediately supported with no need for 
 changes on any of the nodes offering service for something and sensible.

And after some though I posted this on the as112 list: 
https://lists.dns-oarc.net/pipermail/as112-ops/2011-July/000212.html

A number of the operators seemed supportive (and I'm fairly sure I threatened 
to write it up as a draft but then got sidetracked)...

 
 Given the installed base of AS112 servers, and again given their 
 loosely-coordinated nature, I would suggest assigning one new IPv4 /24 and 
 one new IPv6 /48 prefix, with both something and special getting one 
 address out of each. We could then encourage AS112 operators to host the 
 empty root zone on nameserver listening to the appropriate addresses, 
 originating the new prefixes from AS 112, using the mailing list and 
 associated resources mainly managed by William.
 
 Once by some measure the new prefixes are propagating and nameservers are 
 answering, we could redelegate the zones currently delegated to 
 blackhole-1.iana.org and blackhole-2.iana.org to the new servers, and retire 
 192.175.48.0/24.
 
 I think renumbering is worthwhile since we have no way of measuring the 
 extent to which AS112 servers are actually deployed (e.g. there may be many 
 deployed for private use inside ASes that we can't easily see.) Enough public 
 AS112 server operators are responsive on William's list that I don't see a 
 problem in getting sufficient buy-in to a new scheme such as this to make it 
 viable quickly, however.
 
 I think the work to be done in dnsop could be summarised as:
 
 - update RFC 6304 and 6305 as necessary
 - write something that cleans up and unifies the various registries that 
 currently contain RFC 6303-like names, with appropriate IANA actions 
 (ipv4-cull contains some references in section 2, see also 
 draft-cheshire-dnsext-special-names) 
 - write something that provides guidance for future document authors on when 
 they should specify an IANA action to add a new zone to the grand unified 
 as112 registry and cause a delegation to something and sensible to happen.
 
 This document (as112-cull) attempts to do some of this work, but I don't see 
 a reason to bite off small mouthfuls if we can expend a small amount of extra 
 effort and eat the whole sandwich at once.
 
 I am very happy to spend time on this.

Me too. This seems both interesting *and* useful...

W


 
 
 Joe
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[DNSOP] Request to adopt draft-sotomayor-as112-ipv4-cull as WG item

2012-04-04 Thread William F. Maton Sotomayor


All,

	It seems that after delivering my presentation on subsequent AS112 
delegations in Quebec City, I hadn't recalled what the group thought about 
adopting this work as a dnsop item. So, I'm soliciting feedback on this 
request.  I have posted version 03 for your consideration.


Thanks,

wfms
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Re: [DNSOP] Request to adopt draft-sotomayor-as112-ipv4-cull as WG item

2012-04-04 Thread Joe Abley

On 2012-04-04, at 08:20, William F. Maton Sotomayor wrote:

   It seems that after delivering my presentation on subsequent AS112 
 delegations in Quebec City, I hadn't recalled what the group thought about 
 adopting this work as a dnsop item. So, I'm soliciting feedback on this 
 request.  I have posted version 03 for your consideration.

I think that we need a better mechanism to avoid lame delegations to the AS112 
servers, given their loosely-coordinated nature. The add/drop problem for those 
servers (the difficulty in requesting zone changes across from a potentially 
wide and unknown population of server administrators, and being effectively 
unable to measure whether those changes are complete) is a fundamental weakness 
in the 112 project as it is operated today.

I like the idea that came up in Québec (which I shall attribute to Warren 
Kumari since I've seen other people do that, although I was not in the room at 
the time) that the add/drop problem is a lot simpler if every AS112 node hosts 
the zone

  $ORIGIN .
  @ SOA ...
NS something
NS sensible

and answers authoritatively on the addresses corresponding to something and 
sensible, returning NXDOMAIN for everything in the entire namespace apart 
from . (for which they ought never receive queries anyway). This is ugly to 
some eyes, but it works for domainers and it ought to work for us too. Any 
zones that were subsequently delegated to something and sensible (e.g. as 
part of an IANA action) would be immediately supported with no need for changes 
on any of the nodes offering service for something and sensible.

Given the installed base of AS112 servers, and again given their 
loosely-coordinated nature, I would suggest assigning one new IPv4 /24 and one 
new IPv6 /48 prefix, with both something and special getting one address 
out of each. We could then encourage AS112 operators to host the empty root 
zone on nameserver listening to the appropriate addresses, originating the new 
prefixes from AS 112, using the mailing list and associated resources mainly 
managed by William.

Once by some measure the new prefixes are propagating and nameservers are 
answering, we could redelegate the zones currently delegated to 
blackhole-1.iana.org and blackhole-2.iana.org to the new servers, and retire 
192.175.48.0/24.

I think renumbering is worthwhile since we have no way of measuring the extent 
to which AS112 servers are actually deployed (e.g. there may be many deployed 
for private use inside ASes that we can't easily see.) Enough public AS112 
server operators are responsive on William's list that I don't see a problem in 
getting sufficient buy-in to a new scheme such as this to make it viable 
quickly, however.

I think the work to be done in dnsop could be summarised as:

 - update RFC 6304 and 6305 as necessary
 - write something that cleans up and unifies the various registries that 
currently contain RFC 6303-like names, with appropriate IANA actions (ipv4-cull 
contains some references in section 2, see also 
draft-cheshire-dnsext-special-names) 
 - write something that provides guidance for future document authors on when 
they should specify an IANA action to add a new zone to the grand unified as112 
registry and cause a delegation to something and sensible to happen.

This document (as112-cull) attempts to do some of this work, but I don't see a 
reason to bite off small mouthfuls if we can expend a small amount of extra 
effort and eat the whole sandwich at once.

I am very happy to spend time on this.


Joe
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Re: [DNSOP] Request to adopt draft-sotomayor-as112-ipv4-cull as WG item

2012-04-04 Thread Paul Vixie
On 2012-04-04 12:20 PM, William F. Maton Sotomayor wrote:

 It seems that after delivering my presentation on subsequent AS112
 delegations in Quebec City, I hadn't recalled what the group thought
 about adopting this work as a dnsop item. So, I'm soliciting feedback
 on this request.  I have posted version 03 for your consideration.

i think it should be adopted, but i have no time to work on it, so my
vote may not count.

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Re: [DNSOP] Request to adopt draft-sotomayor-as112-ipv4-cull as WG item

2012-04-04 Thread Tony Finch
Joe Abley joe.ab...@icann.org wrote:
 On 2012-04-04, at 11:31, Tony Finch wrote:

  I think BIND treats NXDOMAIN replies with the wrong authority as a
  FORMERR. Domainers are returning positive replies which BIND does not
  subject to a SOA sanity check.

 [real test]
 All other nameservers gave a prompt NXDOMAIN.

Thanks for checking that. I obviously mis-remembered the exact way in
which BIND is pedantic. Sorry.

Tony.
-- 
f.anthony.n.finch  d...@dotat.at  http://dotat.at/
Plymouth: Cyclonic mainly northerly, becoming northeasterly, 4 at first in
east, otherwise 5 to 7, but occasionally gale 8 in west. Very rough at first
in northwest, otherwise moderate or rough. Showers. Moderate or good.
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