[dns-operations] is www.qq.com a zone?
Mark Andrews
marka at isc.org
Fri Jul 1 04:26:30 UTC 2016
In message <fbfdf649-a4d5-9c39-7375-cab4eef44a0d at orange.fr>, yhpeng at orange.fr w
rites:
> Hi,
>
> I was just not sure, I saw it does have NS defined as dig below.
> But `dig www.qq.com ns` and `dig www.qq.com soa` got nothing.
>
> Thanks for the helps.
>
> $ dig www.qq.com +trace
>
> ; <<>> DiG 9.8.1-P1 <<>> www.qq.com +trace
> ;; global options: +cmd
> . 444967 IN NS k.root-servers.net.
> . 444967 IN NS f.root-servers.net.
> . 444967 IN NS j.root-servers.net.
> . 444967 IN NS a.root-servers.net.
> . 444967 IN NS m.root-servers.net.
> . 444967 IN NS g.root-servers.net.
> . 444967 IN NS l.root-servers.net.
> . 444967 IN NS c.root-servers.net.
> . 444967 IN NS h.root-servers.net.
> . 444967 IN NS d.root-servers.net.
> . 444967 IN NS b.root-servers.net.
> . 444967 IN NS i.root-servers.net.
> . 444967 IN NS e.root-servers.net.
> ;; Received 436 bytes from 172.17.1.215#53(172.17.1.215) in 15 ms
>
> com. 172800 IN NS a.gtld-servers.net.
> com. 172800 IN NS b.gtld-servers.net.
> com. 172800 IN NS c.gtld-servers.net.
> com. 172800 IN NS d.gtld-servers.net.
> com. 172800 IN NS e.gtld-servers.net.
> com. 172800 IN NS f.gtld-servers.net.
> com. 172800 IN NS g.gtld-servers.net.
> com. 172800 IN NS h.gtld-servers.net.
> com. 172800 IN NS i.gtld-servers.net.
> com. 172800 IN NS j.gtld-servers.net.
> com. 172800 IN NS k.gtld-servers.net.
> com. 172800 IN NS l.gtld-servers.net.
> com. 172800 IN NS m.gtld-servers.net.
> ;; Received 488 bytes from 198.97.190.53#53(198.97.190.53) in 244 ms
>
> qq.com. 172800 IN NS ns1.qq.com.
> qq.com. 172800 IN NS ns2.qq.com.
> qq.com. 172800 IN NS ns3.qq.com.
> qq.com. 172800 IN NS ns4.qq.com.
> ;; Received 260 bytes from 192.26.92.30#53(192.26.92.30) in 192 ms
>
> www.qq.com. 86400 IN NS ns-tel2.qq.com.
> www.qq.com. 86400 IN NS ns-tel1.qq.com.
> ;; Received 120 bytes from 182.140.177.149#53(182.140.177.149) in 51 ms
>
> www.qq.com. 300 IN A 59.37.96.63
> www.qq.com. 300 IN A 14.17.42.40
> www.qq.com. 300 IN A 14.17.32.211
> ;; Received 76 bytes from 14.17.44.91#53(14.17.44.91) in 9 ms
> _______________________________________________
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Both the servers for qq.com and www.qq.com are broken.
* The qq.com servers promote glue to answer for NS www.qq.com.
; <<>> DiG 9.11.0a3 <<>> www.qq.com ns +norec @ns1.qq.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5587
;; flags: qr aa ad; QUERY: 1, ANSWER: 4, AUTHORITY: 4, ADDITIONAL: 0
;; QUESTION SECTION:
;www.qq.com. IN NS
;; ANSWER SECTION:
www.qq.com. 86400 IN NS ns-cmn1.qq.com.
www.qq.com. 86400 IN NS ns-tel1.qq.com.
www.qq.com. 86400 IN NS ns-cnc1.qq.com.
www.qq.com. 86400 IN NS ns-os1.qq.com.
;; AUTHORITY SECTION:
qq.com. 86400 IN NS ns2.qq.com.
qq.com. 86400 IN NS ns3.qq.com.
qq.com. 86400 IN NS ns4.qq.com.
qq.com. 86400 IN NS ns1.qq.com.
;; Query time: 283 msec
;; SERVER: 101.226.68.138#53(101.226.68.138)
;; WHEN: Fri Jul 01 14:20:33 EST 2016
;; MSG SIZE rcvd: 187
* The www.qq.com servers don't respond to EDNS queries with options.
% dig ns www.qq.com @ns-os1.qq.com +norec
; <<>> DiG 9.11.0a3 <<>> ns www.qq.com @ns-os1.qq.com +norec
;; global options: +cmd
;; connection timed out; no servers could be reached
%
* The www.qq.com servers don't know about the NS records for www.qq.com.
% dig ns www.qq.com @ns-os1.qq.com +norec +nocookie
; <<>> DiG 9.11.0a3 <<>> ns www.qq.com @ns-os1.qq.com +norec +nocookie
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32861
;; flags: qr aa ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.qq.com. IN NS
;; AUTHORITY SECTION:
www.qq.com. 300 IN SOA ns-tel1.qq.com. webmaster.qq.com. 1380440321 300 600 86400 300
;; Query time: 235 msec
;; SERVER: 203.205.176.58#53(203.205.176.58)
;; WHEN: Fri Jul 01 14:22:21 EST 2016
;; MSG SIZE rcvd: 93
%
They do however know about the SOA record.
% dig soa www.qq.com @ns-os1.qq.com +norec +nocookie
; <<>> DiG 9.11.0a3 <<>> soa www.qq.com @ns-os1.qq.com +norec +nocookie
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57446
;; flags: qr aa ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.qq.com. IN SOA
;; ANSWER SECTION:
www.qq.com. 300 IN SOA ns-tel1.qq.com. webmaster.qq.com. 1380440321 300 600 86400 300
;; Query time: 237 msec
;; SERVER: 203.205.176.58#53(203.205.176.58)
;; WHEN: Fri Jul 01 14:23:45 EST 2016
;; MSG SIZE rcvd: 93
%
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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