[dns-operations] Ooops: how common is a 66-record answer section, i wonder?

Peter Dambier peter at peter-dambier.de
Mon Aug 14 10:30:06 UTC 2006


James Raftery wrote:
> On Mon, Aug 14, 2006 at 04:49:41AM +0000, Paul Vixie wrote:
> 
>>on the other hand i worry that things may be getting out of hand.  for example:
> 
> 
> $ dig 155.70.39.65.in-addr.arpa ptr
> ; <<>> DiG 9.3.2 <<>> 155.70.39.65.in-addr.arpa ptr
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12248
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 459, AUTHORITY: 13, ADDITIONAL: 5
>                               ^^^^^^^^^^^

That is bad:

Primary resolver BIND 9.4.0b1

dig -t any 155.70.39.65.in-addr.arpa @lomi
;; Truncated, retrying in TCP mode.
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29878
;; flags: qr rd ra; QUERY: 1, ANSWER: 460, AUTHORITY: 1, ADDITIONAL: 1
...
;; Query time: 2188 msec
;; SERVER: 192.168.48.227#53(lomi)
;; WHEN: Mon Aug 14 11:56:40 2006
;; MSG SIZE  rcvd: 12042

correct, but libresolv times out, tries next.

Secondary resolver djbdns/dnscache

; <<>> DiG 9.1.3 <<>> -t any 155.70.39.65.in-addr.arpa @echnaton
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49331
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;155.70.39.65.in-addr.arpa.     IN      ANY

;; ANSWER SECTION:
155.70.39.65.in-addr.arpa. 41650 IN     NS      ns1.hostingmaster.net.

;; Query time: 13 msec
;; SERVER: 192.168.208.228#53(echnaton)
;; WHEN: Mon Aug 14 12:19:17 2006
;; MSG SIZE  rcvd: 78

That is not what I wanted to know.

Tertiary resolver Fritzbox aDSL-router with linux, busybox (never asked)

; <<>> DiG 9.1.3 <<>> -t any 155.70.39.65.in-addr.arpa @krzach
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16048
;; flags: qr rd ra; QUERY: 1, ANSWER: 15, AUTHORITY: 0, ADDITIONAL: 0
                               ^^^^^^^^^^

;; Query time: 1388 msec
;; SERVER: 192.168.48.2#53(krzach)
;; WHEN: Mon Aug 14 12:20:46 2006
;; MSG SIZE  rcvd: 508

At least it answered, but I dont like the answer.


Kind regards
Peter and Karin

-- 
Peter and Karin Dambier
Cesidian Root - Radice Cesidiana
Graeffstrasse 14
D-64646 Heppenheim
+49(6252)671-788 (Telekom)
+49(179)108-3978 (O2 Genion)
+49(6252)750-308 (VoIP: sipgate.de)
mail: peter at peter-dambier.de
mail: peter at echnaton.serveftp.com
http://iason.site.voila.fr/
https://sourceforge.net/projects/iason/




More information about the dns-operations mailing list