DNS/実装/KnotDNSresolver/issues/moin.qmail.jp/qmail.jp_NSについて、ここに記述してください。

{{{
$ dig -t ns qmail.jp @127.0.0.3

; <<>> DiG 9.11.1 <<>> -t ns qmail.jp @127.0.0.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25839
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: d40b324079fd3e55c84518a8590161d53b6539b26006e546 (good)
;; QUESTION SECTION:
;qmail.jp.			IN	NS

;; ANSWER SECTION:
qmail.jp.		2147483647 IN	NS	b.ns.qmail.jp.
qmail.jp.		2147483647 IN	NS	c.ns.qmail.jp.

;; Query time: 189 msec
;; SERVER: 127.0.0.3#53(127.0.0.3)
;; WHEN: Thu Apr 27 12:13:25 JST 2017
;; MSG SIZE  rcvd: 100
}}}

この問い合わせでは、委譲情報は返答には使われない。
　権威サーバにNSを問い合わせて、結果をキャッシュしている。返答にも使われる。

== log ==
{{{
# kresd -v
[system] interactive mode
> [    0][plan] plan 'qmail.jp.' type 'NS'
[26070][iter]   'qmail.jp.' type 'NS' id was assigned, parent id 0
[26070][resl]   => using root hints
[18232][iter]   'qmail.jp.' type 'NS' id was assigned, parent id 0
[18232][resl]   => querying: '202.12.27.33' score: 10 zone cut: '.' m12n: 'jP.' type: 'NS' proto: 'udp'
[18232][iter]   <= using glue for 'a.dns.jp.': '203.119.1.1'
[18232][iter]   <= using glue for 'd.dns.jp.': '210.138.175.244'
[18232][iter]   <= using glue for 'f.dns.jp.': '150.100.6.8'
[18232][iter]   <= using glue for 'e.dns.jp.': '192.50.43.53'
[18232][iter]   <= using glue for 'h.dns.jp.': '65.22.40.25'
[18232][iter]   <= using glue for 'c.dns.jp.': '156.154.100.5'
[18232][iter]   <= using glue for 'b.dns.jp.': '202.12.30.131'
[18232][iter]   <= using glue for 'g.dns.jp.': '203.119.40.1'
[18232][iter]   <= referral response, follow
[18232][resl]   <= server: '202.12.27.33' rtt: 7 ms
[21591][iter]   'qmail.jp.' type 'NS' id was assigned, parent id 0
[21591][resl]   => querying: '65.22.40.25' score: 10 zone cut: 'jp.' m12n: 'QMaIl.jp.' type: 'NS' proto: 'udp'
[21591][iter]   <= using glue for 'a.ns.qmail.jp.': '14.192.44.5'
[21591][iter]   <= referral response, follow
[21591][resl]   <= server: '65.22.40.25' rtt: 169 ms
[10999][iter]   'qmail.jp.' type 'NS' id was assigned, parent id 0
[10999][resl]   => querying: '14.192.44.5' score: 10 zone cut: 'qmail.jp.' m12n: 'QmAil.JP.' type: 'NS' proto: 'udp'
[10999][iter]   <= rcode: NOERROR
[10999][resl]   <= server: '14.192.44.5' rtt: 11 ms
[    0][resl] finished: 4, queries: 1, mempool: 32800 B

}}}