Re: Dig ANY gives SERVFAIL / FORMERR

2009-09-29 Thread Mark Andrews

In message , Paul Wou
ters writes:
> On Wed, 30 Sep 2009, Mark Andrews wrote:
> 
> >> http://www.afnic.fr/outils/zonecheck/_en
> >
> > The key word is "required".  I know some do, I just wish more did.
> 
> I for one, welcome our new named-checkzone overlords.
> 
> (especially if named-checkzone would fail to OK a zone with NSEC3RSASHA1 keys
> and re-used NSEC records :)

NSEC3RSASHA1 w/ NSEC is fine and is required if you want to transition
from RSASHA1 (w/ NSEC) to NSEC3RSASHA1 w/ NSEC3 w/o going insecure.

NSEC + NSEC3PARAM however could be rejected as could having multiple
NSEC3PARAM records.

> Paul

Not named-checkzone (yet) but the following are in BIND 9.6.2.

2686.   [bug]   dnssec-signzone should clean the old NSEC chain when
signing with NSEC3 and vice versa. [RT #20301]

2683.   [bug]   dnssec-signzone should clean out old NSEC3 chains when
the NSEC3 parameters used to sign the zone change.
[RT #20246]

dnssec-signzone works on the zone as a whole so it is in the position
to do this in a straight forward manner.  Named, however, needs to
support multiple NSEC3 chains (though not all may be complete) as
it does its work incrementally but perhaps it could be argued that
when you finish adding new NSEC3 chain incrementally the old one
should be removed.

Mark
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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Re: Dig ANY gives SERVFAIL / FORMERR

2009-09-29 Thread Paul Wouters

On Wed, 30 Sep 2009, Mark Andrews wrote:


http://www.afnic.fr/outils/zonecheck/_en


The key word is "required".  I know some do, I just wish more did.


I for one, welcome our new named-checkzone overlords.

(especially if named-checkzone would fail to OK a zone with NSEC3RSASHA1 keys
and re-used NSEC records :)

Paul
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Re: Dig ANY gives SERVFAIL / FORMERR

2009-09-29 Thread Mark Andrews

In message <20090929122845.ga13...@nic.fr>, Stephane Bortzmeyer writes:
> On Thu, Sep 24, 2009 at 07:16:35AM +1000,
>  Mark Andrews  wrote 
>  a message of 77 lines which said:
> 
> > It's a pity registries are not required to verify correct operation
> > of the nameservers they are delegating to before accepting the
> > delegation.
> 
> Some do!
> 
> http://www.afnic.fr/outils/zonecheck/_en

The key word is "required".  I know some do, I just wish more did.

Mark
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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Re: Dig ANY gives SERVFAIL / FORMERR

2009-09-29 Thread Stephane Bortzmeyer
On Thu, Sep 24, 2009 at 07:16:35AM +1000,
 Mark Andrews  wrote 
 a message of 77 lines which said:

> It's a pity registries are not required to verify correct operation
> of the nameservers they are delegating to before accepting the
> delegation.

Some do!

http://www.afnic.fr/outils/zonecheck/_en
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Re: Dig ANY gives SERVFAIL / FORMERR

2009-09-23 Thread Mark Andrews

In message , "Jeremy C. Re
ed" writes:
> > It looks like that the authoritative name server for youbei.cc
> > actually did return some answers, but somehow bind gave a FORMERR for
> > some unknown reasons, which I think it caused a SERVFAIL to be
> > reported in turn. Interestingly, dig any youbei.cc +trace ran
> > successfully and did not report any error.
> >
> > Does anyone know what might have caused this problem?
> 
> My custom named logs:
> 
> 23-Sep-2009 15:00:29.749 resolver: notice: FORMERR: Type didn't match (ANY != 
> A)
> 23-Sep-2009 15:00:29.770 resolver: notice: FORMERR: Reply has no answer.
> 
> named wants to know "Is the question the same as the one we asked?"
> 
> I think 72dns.com has a broken DNS server.
 
More modern versions of dig will also report the mismatch.  The
servers also answers  queries with A records.

It's a pity registries are not required to verify correct operation
of the nameservers they are delegating to before accepting the
delegation.  If they were then a lot of this garbage would cease.
It really isn't hard for a registry (or the registrar on behalf of
the registry) to check that servers answer queries correctly.  Just
the almighty dollar has got in front of having a working system.

Mark

% dig any youbei.cc @ns1.72dns.com
;; Question section mismatch: got youbei.cc/A/IN
;; Question section mismatch: got youbei.cc/A/IN
;; Question section mismatch: got youbei.cc/A/IN

; <<>> DiG 9.7.0a2 <<>> any youbei.cc @ns1.72dns.com
;; global options: +cmd
;; connection timed out; no servers could be reached
% 

% dig  youbei.cc @ns1.72dns.com

; <<>> DiG 9.3.6-P1 <<>>  youbei.cc @ns1.72dns.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5189
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;youbei.cc. IN  

;; ANSWER SECTION:
youbei.cc.  3600IN  A   211.155.230.241

;; Query time: 436 msec
;; SERVER: 121.12.173.174#53(121.12.173.174)
;; WHEN: Thu Sep 24 07:07:46 2009
;; MSG SIZE  rcvd: 52
%



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Re: Dig ANY gives SERVFAIL / FORMERR

2009-09-23 Thread Jeremy C. Reed
> It looks like that the authoritative name server for youbei.cc
> actually did return some answers, but somehow bind gave a FORMERR for
> some unknown reasons, which I think it caused a SERVFAIL to be
> reported in turn. Interestingly, dig any youbei.cc +trace ran
> successfully and did not report any error.
>
> Does anyone know what might have caused this problem?

My custom named logs:

23-Sep-2009 15:00:29.749 resolver: notice: FORMERR: Type didn't match (ANY != A)
23-Sep-2009 15:00:29.770 resolver: notice: FORMERR: Reply has no answer.

named wants to know "Is the question the same as the one we asked?"

I think 72dns.com has a broken DNS server.

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Dig ANY gives SERVFAIL / FORMERR

2009-09-23 Thread Patrick Yu
Hi,

I operate a caching naming server version 9.5.0-P1 for a small work
group that includes an email server. From the server log file, there
are occasional DNS error messages.

Upon closer examination using a packet sniffer, the email server sends
out queries of type ANY for all sender/recipient domain names. There
are just some domains which cause errors, for example, youbei.cc
(which is not under our control.)

I tried dig any youbei.cc and it returns the following error:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 64259
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

With heavy tracing turned on and rndc flush before executing the
command, it gave the following log entries that I excerpted below:

24-Sep-2009 02:07:35.878 received packet:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  28529
;; flags: qr aa ; QUESTION: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 3
;; QUESTION SECTION:
;youbei.cc. IN  A

;; ANSWER SECTION:
youbei.cc.  86400   IN  SOA ns1.72dns.com. admin.youbei.cc.
100 3600 900 86400 3600
youbei.cc.  3600IN  NS  ns1.72dns.com.
youbei.cc.  3600IN  NS  ns2.72dns.com.
youbei.cc.  3600IN  MX  10 mail.youbei.cc.
youbei.cc.  3600IN  A   211.155.230.241

;; ADDITIONAL SECTION:
ns1.72dns.com.  3600IN  A   121.12.173.174
ns2.72dns.com.  3600IN  A   211.155.230.241
mail.youbei.cc. 3600IN  A   58.61.157.116

24-Sep-2009 02:07:35.879 fctx d18160(youbei.cc/ANY'): cancelquery
24-Sep-2009 02:07:35.879 sockmgr dbea0: watcher got message -2 for socket -1
24-Sep-2009 02:07:35.880 dispatch 160dc88 response 160ce28
121.12.173.174#53: detaching from task ca310
24-Sep-2009 02:07:35.880 dispatch 160dc88: detach: refcount 0
24-Sep-2009 02:07:35.880 fctx d18160(youbei.cc/ANY'): add_bad
24-Sep-2009 02:07:35.881 dispatch 160dc88: got packet: requests 0,
buffers 1, recvs 1
24-Sep-2009 02:07:35.881 FORMERR resolving 'youbei.cc/ANY/IN': 121.12.173.174#53
24-Sep-2009 02:07:35.881 fctx d18160(youbei.cc/ANY'): try
24-Sep-2009 02:07:35.882 fctx d18160(youbei.cc/ANY'): query

It looks like that the authoritative name server for youbei.cc
actually did return some answers, but somehow bind gave a FORMERR for
some unknown reasons, which I think it caused a SERVFAIL to be
reported in turn. Interestingly, dig any youbei.cc +trace ran
successfully and did not report any error.

Does anyone know what might have caused this problem?

Best regards,
Patrick
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