[Gllug] ORBS collapse rumbles on

Paul Miles paul.miles at padlondon.com
Wed Jul 18 08:35:28 UTC 2001


i sent this to you a few days ago from my hotmail account ....

Paul
----- Original Message -----
From: "Bruce Richardson" <brichardson at lineone.net>
To: <gllug at linux.co.uk>
Sent: Tuesday, July 17, 2001 7:01 PM
Subject: [Gllug] ORBS collapse rumbles on




> Forwarded from a post to news.admin.net-abuse.email...

> ----- Begin Included Message -----

> From: rfg at monkeys.com (Ronald F. Guilmette)
> Newsgroups: news.admin.net-abuse.email
> Subject: IMPORTANT!!!  ORBS USERS PLEASE TAKE NOTE
> Date: Thu, 12 Jul 2001 22:30:50 -0000
> Message-ID: <tks98qske8acbd at corp.supernews.com>


> IMPORTANT!!!

> IF YOU ARE CONFIGURED TO MAKE REFERENCES TO ANY ORBS.ORG `LIST'
ZONE(S)
> I STRONGLY SUGGEST THAT YOU DISCONTINUE DOING SO IMMEDIATELY, IF NOT
> SOONER.  FAILURE TO DO SO MAY RESULT IN SERIOUS IMPARMENT OF YOUR
> E-MAIL INFLOW.

> This is a public service announcement for those sites that are still
> configured to perform lookups against any or all of the following
> former (and now defunct) ORBS zones:

>         inputs.orbs.org
>         outputs.orbs.org
>         relays.orbs.org
>         delayed-outputs.orbs.org
>         spamsources.orbs.org
>         spamsource-netblocks.orbs.org
>         manual.orbs.org

> As a courtesy to Alan Brown (owner and operator of ORBS.ORG), I agreed
> last year to allow one of my name servers (E-SCRUB.COM) to become one
> of 11 name servers for the orbs.org zone.  I agree to this because the
> each of the `list' subdomains noted above was in fact a separate zone
> of its own, separate and different from the base `orbs.org' zone,
which
> itself contained very few DNS records.

> My agreement with Alan was ONLY to act as a secondary name server (one
> of eleven) for the base orbs.org zone.  Because of normal DNS
client-side
> caching, and because of the small number of DNS records involved, I
knew
> for certain at the time that having my name server be one of 11
secondaries
> for the base orbs.org zone would involve very little expenditure of
band-
> width on my part.

> The situation changed dramatically however with Alan's disabling of
the
> subzones mentioned above.  (This occured sometime last month.  I'm not
> exactly sure of the date.)  When disabling the `list' subzones, Alan
> apparently just removed any mention of these subzones/subdomains from
> the base orbs.org zone file.

> Because of the way Alan disabled the former ORBS list zones, my name
> server is now shouldering (at least) 1/11th of the total world-wide
> DNS queries that are still being made against both the base orbs.org
> zone and also against all of the former ORBS `list' subzones.  This
> may not sound like a lot, but in fact it DOES represent a substantial
> and noticable drain on the small amount of bandwidth I have.  I should
> note also that when I briefly turned on query logging in my name
server
> recently, I found that over 2,000 sites world wide are still making
> frequent and repeated references to the former ORBS list subzones,
> presumably as they attempt to check each e-mail message coming into
> their mail servers.

> I simply do not have the kind of bandwidth necessary to support all of
> this pointless and utterly wasteful traffic.  I've asked Alan multiple
> times to remove my name server from the list of authoratative name
servers
> for the orbs.org zone, and each time he has made up some new
implausible
> excuse.  Alan's dog may indeed have eaten his homework, but his
excuses
> just aren't believable anymore.  (He has had plenty of time to take
care
> of this.  I first requested him to remove my server on June 7th, 2001,
> and I have re-requested that he do that several times since.  Each
time
> he has either failed to respond or else had presented me with some new
> implausible excuse.)

> I've considered various solutions to this problem, but none of them
seem
> particularly easy for me.  I could certainly relocate my name server,
called
> E-SCRUB.COM, to a different IP address, but for all I know, the DNS
query
> traffic might just follow the name, rather than the IP address, so
then I'd
> be right back where I started.  It would also be a major pain in the
ass for
> me to get an new IP for other reasons.  I have already tried setting
up
> NS records in _my_ copy of the orbs.org zonefile (on my name server)
for
> all of the subzones mentioned above, and pointing all of those NS
records
> at 127.0.0.1 (local loopback address) but for reason I don't fully
under-
> stand, that hasn't stopped the DNS query flood to my name server
either.

> I'm sure that there are a number of other possible convoluted
solutions to
> this problem, e.g. creating a new `host' record in DNS (and with NSI)
and
> then re-jiggering all of the records for my many other domains so that
the
> primary name servers for those are listed as being the new `host', but
this
> seems like a lot more work than I should have to go to just because
Alan
> refuses to do the decent thing and because so many sites have been so
horribly
> lax in removing references to the now long defunct ORBS list zones.

> In light of all this, I've decided to just use a trivial and
brute-force
> approach to stopping all of this DNS query traffic from being sent to
my
> name server.  As of 9 PM tonight (Pacific Daylight Time) my name
server
> will be configured to answer ALL `A' record queries regarding ANY name
> within the orbs.org domain with an affirmative response and with the
IP
> address value `127.0.0.1'.  Each such response will carry an extremely
> long TTL, in order to insure that further queries regarding the same
name
> will be put off as long as possible into the indefinite future.

> An exception will be made, of course, for `A' record queries relating
to
> `www.orbs.org', which my name server will contine to identify as being
> located at 202.61.250.235.

> The implications of my plan for sites still attempting to use the
orbs.org
> zones for e-mail filtering purposes should be evident.  From 9 PM PDT
tonight
> all such sites will begin to reject (at least) an estimated 1/11th of
their
> incoming e-mail, at random.  The portion of incoming e-mail given this
> treatment by these sites may in fact increase, over time, as I also
intend
> to delete all other NS (name server) records from my copy of the
orbs.org
> zone file, leaving only my server listed as being authoritative for
this
> zone.  (I'm actually not sure what effects this will have as the root
> server will still contain a completely list of all 11 current
registered
> name server for the zone.)

> Complaints, flames, and lawsuit threats resulting from the DNS change
that
> I will make to name server this evening should be directed to Alan
Brown,
> whose new/current e-mail address seems to be <alanb at dms.digistar.com>,
> and/or to your own local mail administrator.

> Finally, allow me to recommend to all mail administrators reading this
that
> tonight's change will provide you with what I believe will be a more
than
> compelling incentive to select some new and different source of open
relays
> data.  At the present time, there are at least four such services
available
> to the general public.


> Regards,
> Ron Guilmette
> <rfg at monkeys.com>


> P.S.  I wish that I could recommend one of the four active open relays
listing
> services above the others, but one of them refuses to accept automated
sub-
> missions, two of the others don't seem to even answer their e-mail,
and the
> final one has recently blacklisted my own non-open mail server, simply
be-
> cause I made the small mistake of manually replying to one of their
own
> auto-replies that was sent in response to a prior message that I had
sent
> them to nominate some open relays I knew about.

> When and if a responsive and intelligently-run public open relays
listing
> service become available, I'll certainly be among the first to use it
and to
> recommend it.


> ----- End Included Message -----

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> ----- End forwarded message -----

> --
> Have U seen the dirty bird?  | "If you ever want to get anywhere in
> http://www.moongroup.com     | politics, my boy, you're going to have
to
> Kernel 2.4.3-12 - i686  cpu  | get a toehold in the public eye."
>                              |




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