1. watchNS/cci.or.jp

infomart.or.jp などのAはない：

8:19f%dig -t ns cci.or.jp @dns1.ymc.ne.jp.

; <<>> DiG 9.9.0 <<>> -t ns cci.or.jp @dns1.ymc.ne.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29772
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 3

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

;; ANSWER SECTION:
cci.or.jp.              86400   IN      NS      ns3.infomart.or.jp.
cci.or.jp.              86400   IN      NS      dns1.ymc.ne.jp.
cci.or.jp.              86400   IN      NS      dns2.ymc.ne.jp.
cci.or.jp.              86400   IN      NS      ns1.infomart.or.jp.
cci.or.jp.              86400   IN      NS      ns2.infomart.or.jp.

;; ADDITIONAL SECTION:
dns1.ymc.ne.jp.         456     IN      A       114.179.216.253
dns2.ymc.ne.jp.         421     IN      A       121.119.195.249

;; Query time: 15 msec
;; SERVER: 114.179.216.253#53(114.179.216.253)
;; WHEN: Wed May 27 08:19:52 2015
;; MSG SIZE  rcvd: 178

だが、問い合せるとキャッシュに入る。：

%dig -t a ns1.infomart.or.jp @dns1.ymc.ne.jp. ~/dnsq/0526

; <<>> DiG 9.9.0 <<>> -t a ns1.infomart.or.jp @dns1.ymc.ne.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7792
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;ns1.infomart.or.jp.            IN      A

;; ANSWER SECTION:
ns1.infomart.or.jp.     86400   IN      A       210.159.6.17

;; AUTHORITY SECTION:
infomart.or.jp.         86400   IN      NS      ns1.infomart.or.jp.
infomart.or.jp.         86400   IN      NS      ns2.inetvass.com.
infomart.or.jp.         86400   IN      NS      ns2.infomart.or.jp.
infomart.or.jp.         86400   IN      NS      ns1.inetvass.com.

;; Query time: 53 msec
;; SERVER: 114.179.216.253#53(114.179.216.253)
;; WHEN: Wed May 27 08:20:22 2015
;; MSG SIZE  rcvd: 143

そして、

%dig -t ns cci.or.jp @dns1.ymc.ne.jp.

; <<>> DiG 9.9.0 <<>> -t ns cci.or.jp @dns1.ymc.ne.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27864
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 4

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

;; ANSWER SECTION:
cci.or.jp.              86400   IN      NS      ns2.infomart.or.jp.
cci.or.jp.              86400   IN      NS      ns3.infomart.or.jp.
cci.or.jp.              86400   IN      NS      dns1.ymc.ne.jp.
cci.or.jp.              86400   IN      NS      dns2.ymc.ne.jp.
cci.or.jp.              86400   IN      NS      ns1.infomart.or.jp.

;; ADDITIONAL SECTION:
ns1.infomart.or.jp.     86386   IN      A       210.159.6.17
dns1.ymc.ne.jp.         412     IN      A       114.179.216.253
dns2.ymc.ne.jp.         377     IN      A       121.119.195.249

;; Query time: 16 msec
;; SERVER: 114.179.216.253#53(114.179.216.253)
;; WHEN: Wed May 27 08:20:35 2015
;; MSG SIZE  rcvd: 194

dns*.myc.ne.jp についてもキャッシュのデータを答えている様子：おかしな動作。（ゾーンファイルがないことを示す）