watchNS/kishindo.co.jpについて、ここに記述してください。

%dnsq ns kishindo.co.jp a.dns.jp

2 kishindo.co.jp:
107 bytes, 1+0+2+2 records, response, noerror
query: 2 kishindo.co.jp
authority: kishindo.co.jp 86400 NS ns2.dns.ne.jp
authority: kishindo.co.jp 86400 NS ns1.dns.ne.jp
additional: ns1.dns.ne.jp 86400 A 210.188.224.9
additional: ns2.dns.ne.jp 86400 A 210.224.172.13

19:31d%dnsq ns kishindo.co.jp ns1.dns.ne.jp

2 kishindo.co.jp:
75 bytes, 1+2+0+0 records, response, authoritative, noerror
query: 2 kishindo.co.jp
answer: kishindo.co.jp 3600 NS ns2.dns.ne.jp
answer: kishindo.co.jp 3600 NS ns1.dns.ne.jp

19:31d%dnsq any kishindo.co.jp ns1.dns.ne.jp

255 kishindo.co.jp:
250 bytes, 1+7+2+0 records, response, authoritative, noerror
query: 255 kishindo.co.jp
answer: kishindo.co.jp 3600 NS ns1.dns.ne.jp
answer: kishindo.co.jp 3600 NS ns2.dns.ne.jp
answer: kishindo.co.jp 600 MX 300 mx2.firstserver.ne.jp
answer: kishindo.co.jp 600 MX 100 mail.kishindo.co.jp
answer: kishindo.co.jp 600 MX 200 mx1.firstserver.ne.jp
answer: kishindo.co.jp 600 A 203.145.242.30
answer: kishindo.co.jp 3600 SOA master.dns.ne.jp tech.sakura.ad.jp 2011041900 3600 900 3600000 3600
authority: kishindo.co.jp 3600 NS ns2.dns.ne.jp
authority: kishindo.co.jp 3600 NS ns1.dns.ne.jp

ここまでなら、特におかしいところはない。

%dnsq a www.kishindo.co.jp ns1.dns.ne.jp

1 www.kishindo.co.jp:
91 bytes, 1+0+2+0 records, response, noerror
query: 1 www.kishindo.co.jp
authority: www.kishindo.co.jp 600 NS nsas3.firstserver.ne.jp
authority: www.kishindo.co.jp 600 NS nsas4.firstserver.ne.jp

www がサブドメインとして、外部に委譲されている。そして、

19:33d%dnsq a www.kishindo.co.jp nsas3.firstserver.ne.jp

1 www.kishindo.co.jp:
126 bytes, 1+2+2+0 records, response, authoritative, noerror
query: 1 www.kishindo.co.jp
answer: www.kishindo.co.jp 3600 CNAME mail.kishindo.co.jp
answer: mail.kishindo.co.jp 3600 A 203.145.242.30
authority: kishindo.co.jp 3600 NS nsas3.firstserver.ne.jp
authority: kishindo.co.jp 3600 NS nsas4.firstserver.ne.jp

firstserver.ne.jp は www サブドメインではなく、kishindo の権威サーバだと主張する。 これを受け入れるか。-- ToshinoriMaeno 2012-04-03 10:45:28

1. named 9.9.0

;; AUTHORITY SECTION: mail.kishindo.co.jp. 600 IN NS nsas4.firstserver.ne.jp. mail.kishindo.co.jp. 600 IN NS nsas3.firstserver.ne.jp.

2. mail.kishindo.co.jp

権威サーバはどこか。

19:42m6%dig -t a mail.kishindo.co.jp @ns1.dns.ne.jp ~

; <<>> DiG 9.9.0 <<>> -t a mail.kishindo.co.jp @ns1.dns.ne.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5623
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;mail.kishindo.co.jp.           IN      A

;; AUTHORITY SECTION:
mail.kishindo.co.jp.    600     IN      NS      nsas3.firstserver.ne.jp.
mail.kishindo.co.jp.    600     IN      NS      nsas4.firstserver.ne.jp.

;; Query time: 0 msec
;; SERVER: 210.188.224.9#53(210.188.224.9)
;; WHEN: Tue Apr  3 19:42:45 2012
;; MSG SIZE  rcvd: 103

19:42m6%dig -t a mail.kishindo.co.jp @nsas3.firstserver.ne.jp.

; <<>> DiG 9.9.0 <<>> -t a mail.kishindo.co.jp @nsas3.firstserver.ne.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62956
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;mail.kishindo.co.jp.           IN      A

;; ANSWER SECTION:
mail.kishindo.co.jp.    3600    IN      A       203.145.242.30

;; AUTHORITY SECTION:
kishindo.co.jp.         3600    IN      NS      nsas3.firstserver.ne.jp.
kishindo.co.jp.         3600    IN      NS      nsas4.firstserver.ne.jp.

;; Query time: 10 msec
;; SERVER: 164.46.1.79#53(164.46.1.79)
;; WHEN: Tue Apr  3 19:43:12 2012
;; MSG SIZE  rcvd: 119

19:43m6%dig -t a www.kishindo.co.jp @nsas3.firstserver.ne.jp. ~

; <<>> DiG 9.9.0 <<>> -t a www.kishindo.co.jp @nsas3.firstserver.ne.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43054
;; flags: qr aa rd; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.kishindo.co.jp.            IN      A

;; ANSWER SECTION:
www.kishindo.co.jp.     3600    IN      CNAME   mail.kishindo.co.jp.
mail.kishindo.co.jp.    3600    IN      A       203.145.242.30

;; AUTHORITY SECTION:
kishindo.co.jp.         3600    IN      NS      nsas3.firstserver.ne.jp.
kishindo.co.jp.         3600    IN      NS      nsas4.firstserver.ne.jp.

;; Query time: 10 msec
;; SERVER: 164.46.1.79#53(164.46.1.79)
;; WHEN: Tue Apr  3 19:44:34 2012
;; MSG SIZE  rcvd: 137