1. watch/dolphin.kddnet.ad.jp

watchNS/kddnet.ad.jp

この返事はなんでしょう。-- ToshinoriMaeno 2015-12-27 00:38:34

210.132.91.130=dolphin.kddnet.ad.jp ただのオープンリゾルバー wでもない。

KDDI/kddnet.ad.jp KDDI watchNS

$ dig clnx.qmail.jp @dolphin.kddnet.ad.jp

; <<>> DiG 9.9.5-3ubuntu0.6-Ubuntu <<>> clnx.qmail.jp @dolphin.kddnet.ad.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23982
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 7, ADDITIONAL: 14

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;clnx.qmail.jp.                 IN      A

;; ANSWER SECTION:
clnx.qmail.jp.          517445  IN      A       195.22.126.213

;; AUTHORITY SECTION:
jp.                     54276   IN      NS      c.dns.jp.
jp.                     54276   IN      NS      a.dns.jp.
jp.                     54276   IN      NS      e.dns.jp.
jp.                     54276   IN      NS      f.dns.jp.
jp.                     54276   IN      NS      b.dns.jp.
jp.                     54276   IN      NS      g.dns.jp.
jp.                     54276   IN      NS      d.dns.jp.

;; ADDITIONAL SECTION:
a.dns.jp.               12735   IN      A       203.119.1.1
a.dns.jp.               12735   IN      AAAA    2001:dc4::1
b.dns.jp.               54256   IN      A       202.12.30.131
b.dns.jp.               54256   IN      AAAA    2001:dc2::1
c.dns.jp.               54276   IN      A       156.154.100.5
c.dns.jp.               54276   IN      AAAA    2001:502:ad09::5
d.dns.jp.               54256   IN      A       210.138.175.244
d.dns.jp.               54256   IN      AAAA    2001:240::53
e.dns.jp.               54256   IN      A       192.50.43.53
e.dns.jp.               54256   IN      AAAA    2001:200:c000::35
f.dns.jp.               54256   IN      A       150.100.6.8
f.dns.jp.               54256   IN      AAAA    2001:2f8:0:100::153
g.dns.jp.               54256   IN      A       203.119.40.1

;; Query time: 8 msec
;; SERVER: 210.132.91.130#53(210.132.91.130)
;; WHEN: Sun Dec 27 09:36:27 JST 2015
;; MSG SIZE  rcvd: 454

$ dig -t a clnx.qmail.jp @dolphin.kddnet.ad.jp

; <<>> DiG 9.9.5-3ubuntu0.6-Ubuntu <<>> -t a clnx.qmail.jp @dolphin.kddnet.ad.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42198
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;clnx.qmail.jp.                 IN      A

;; ANSWER SECTION:
clnx.qmail.jp.          517075  IN      A       195.22.126.213

;; AUTHORITY SECTION:
qmail.jp.               86208   IN      NS      a.ns.qmail.jp.

;; ADDITIONAL SECTION:
a.ns.qmail.jp.          86208   IN      A       14.192.44.5

;; Query time: 7 msec
;; SERVER: 210.132.91.130#53(210.132.91.130)
;; WHEN: Sun Dec 27 09:42:37 JST 2015
;; MSG SIZE  rcvd: 93

TTLは最大7日らしい。


$ dig -t ns clnx.qmail.jp @dolphin.kddnet.ad.jp

; <<>> DiG 9.9.5-3ubuntu0.6-Ubuntu <<>> -t ns clnx.qmail.jp @dolphin.kddnet.ad.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37568
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 5

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;clnx.qmail.jp.                 IN      NS

;; ANSWER SECTION:
clnx.qmail.jp.          180     IN      NS      ns3.clnx2015.com.
clnx.qmail.jp.          180     IN      NS      ns4.clnx2015.com.
clnx.qmail.jp.          180     IN      NS      ns1.clnx2015.com.
clnx.qmail.jp.          180     IN      NS      ns2.clnx2015.com.

;; ADDITIONAL SECTION:
ns1.clnx2015.com.       517003  IN      A       195.22.126.212
ns2.clnx2015.com.       85003   IN      A       195.22.126.213
ns3.clnx2015.com.       85003   IN      A       195.22.126.214
ns4.clnx2015.com.       85003   IN      A       195.22.126.215

;; Query time: 320 msec
;; SERVER: 210.132.91.130#53(210.132.91.130)
;; WHEN: Sun Dec 27 09:43:49 JST 2015
;; MSG SIZE  rcvd: 190