## page was renamed from watchNS/agm.co.jp
== watchNS/agm.co.jp ==

%dnsq ns agm.co.jp a.dns.jp
{{{
2 agm.co.jp:
86 bytes, 1+0+2+0 records, response, noerror
query: 2 agm.co.jp
authority: agm.co.jp 86400 NS ns.center.web.ad.jp
authority: agm.co.jp 86400 NS ns.xsp.fenics.jp
}}}

こっちの返事がおかしい。

%dig -t ns agm.co.jp @ns.center.web.ad.jp 
{{{
; <<>> DiG 9.9.0 <<>> -t ns agm.co.jp @ns.center.web.ad.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6517
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 3

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

;; ANSWER SECTION:
agm.co.jp.		3600	IN	NS	ns.xsp.fenics.jp.
agm.co.jp.		3600	IN	NS	ns.center.web.ad.jp.

;; ADDITIONAL SECTION:
ns.xsp.fenics.jp.	251	IN	A	202.248.234.17
ns.center.web.ad.jp.	86400	IN	A	202.248.0.34

;; Query time: 7 msec
;; SERVER: 202.248.0.34#53(202.248.0.34)
;; WHEN: Tue May 26 19:22:53 2015
;; MSG SIZE  rcvd: 129
}}}

キャッシュされているデータもadditionalにつけてくる。
　additional を信用してはいけないという理由のひとつ。（ここでは外部名だから、当然だが）
-- ToshinoriMaeno <<DateTime(2015-05-26T19:27:22+0900)>>

%dig +norec -t ns agm.co.jp @ns.center.web.ad.jp
{{{
; <<>> DiG 9.9.0 <<>> +norec -t ns agm.co.jp @ns.center.web.ad.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12290
;; flags: qr aa ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 3

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

;; ANSWER SECTION:
agm.co.jp.		3600	IN	NS	ns.center.web.ad.jp.
agm.co.jp.		3600	IN	NS	ns.xsp.fenics.jp.

;; ADDITIONAL SECTION:
ns.xsp.fenics.jp.	127	IN	A	202.248.234.17
ns.center.web.ad.jp.	86400	IN	A	202.248.0.34

;; Query time: 7 msec
;; SERVER: 202.248.0.34#53(202.248.0.34)
;; WHEN: Tue May 26 19:24:57 2015
;; MSG SIZE  rcvd: 129
}}}