## page was renamed from DNS/1/ゾーンサーバ/移転/観察/実験2
## page was renamed from DNS/1/ゾーンサーバ/移転/実験2
## page was renamed from DNS/基礎知識/ゾーンサーバ/移転/実験2
## page was renamed from DNS/用語/ゾーンサーバ/移転/実験2
## page was renamed from DNS/ゾーンサーバ/移転/実験2
## page was renamed from DNS/ゾーンサーバ移転/実験2
#pragma section-numbers off
= 実験2 旧ゾーンサーバがキャッシュ兼用(オープンリゾルバ)で上位Referral を返すケース =
-- [[tss]] <<DateTime(2013-11-03T09:31:42+0900)>>

実験1と同様に委譲を切り替えた後、旧ゾーンサーバから設定を消す効果に関する実験。

実験1は旧ゾーンサーバが応答を REFUSE する最近の実装のケースだが、この実験ではキャッシュを兼用しオープンリゾルバになっていて上位 Referral を返すというケースを試す。 (BIND 9.8.4-P1)

{{{
root@server3:/ # dig www.bind.nom
dig www.bind.nom

; <<>> DiG 9.8.4-P1 <<>> www.bind.nom
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40835
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;www.bind.nom.			IN	A

;; ANSWER SECTION:
www.bind.nom.		60	IN	A	172.16.17.1

;; AUTHORITY SECTION:
bind.nom.		180	IN	NS	ns.bind.nom.

;; ADDITIONAL SECTION:
ns.bind.nom.		300	IN	A	172.16.17.1

;; Query time: 7 msec
;; SERVER: 172.16.33.1#53(172.16.33.1)
;; WHEN: Sat Nov  2 04:49:15 2013
;; MSG SIZE  rcvd: 79

root@server3:/ # dig www.bind.nom @172.16.17.1 +norec

; <<>> DiG 9.8.4-P1 <<>> www.bind.nom @172.16.17.1 +norec
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20546
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.bind.nom.			IN	A

;; AUTHORITY SECTION:
.			3600000	IN	NS	A.ROOT-SERVERS.NET.

;; Query time: 0 msec
;; SERVER: 172.16.17.1#53(172.16.17.1)
;; WHEN: Sat Nov  2 04:49:51 2013
;; MSG SIZE  rcvd: 61

root@server3:/ # dig www.bind.nom

; <<>> DiG 9.8.4-P1 <<>> www.bind.nom
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40522
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;www.bind.nom.			IN	A

;; ANSWER SECTION:
www.bind.nom.		17	IN	A	172.16.17.1

;; AUTHORITY SECTION:
bind.nom.		137	IN	NS	ns.bind.nom.

;; ADDITIONAL SECTION:
ns.bind.nom.		257	IN	A	172.16.17.1

;; Query time: 0 msec
;; SERVER: 172.16.33.1#53(172.16.33.1)
;; WHEN: Sat Nov  2 04:49:58 2013
;; MSG SIZE  rcvd: 79

root@server3:/ # dig www.bind.nom

; <<>> DiG 9.8.4-P1 <<>> www.bind.nom
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 61145
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.bind.nom.			IN	A

;; Query time: 0 msec
;; SERVER: 172.16.33.1#53(172.16.33.1)
;; WHEN: Sat Nov  2 04:50:38 2013
;; MSG SIZE  rcvd: 30

root@server3:/ # dig www.bind.nom

; <<>> DiG 9.8.4-P1 <<>> www.bind.nom
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61980
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;www.bind.nom.			IN	A

;; ANSWER SECTION:
www.bind.nom.		1800	IN	A	172.16.1.1

;; AUTHORITY SECTION:
bind.nom.		93	IN	NS	ns.bind.nom.

;; ADDITIONAL SECTION:
ns.bind.nom.		286	IN	A	172.16.1.1

;; Query time: 10 msec
;; SERVER: 172.16.33.1#53(172.16.33.1)
;; WHEN: Sat Nov  2 04:50:42 2013
;; MSG SIZE  rcvd: 79
}}}