MoinQ: DNS/CNAME/返答/例

watchA/warn.qmail.jpについて、ここに記述してください。

iij

$ dig warn.qmail.jp. @210.130.0.1

; <<>> DiG 9.9.5-3ubuntu0.13-Ubuntu <<>> warn.qmail.jp. @210.130.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 49213
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;warn.qmail.jp.                 IN      A

;; Query time: 19 msec
;; SERVER: 210.130.0.1#53(210.130.0.1)
;; WHEN: Tue Feb 21 13:21:00 JST 2017
;; MSG SIZE  rcvd: 42

1. OpenDNS

$ dig warn.qmail.jp. @208.67.222.222

; <<>> DiG 9.9.5-3ubuntu0.13-Ubuntu <<>> warn.qmail.jp. @208.67.222.222
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49071
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;warn.qmail.jp.                 IN      A

;; ANSWER SECTION:
warn.qmail.jp.          298     IN      CNAME   www.qmail.jp.
www.qmail.jp.           0       IN      A       14.192.44.5

;; Query time: 165 msec
;; SERVER: 208.67.222.222#53(208.67.222.222)
;; WHEN: Tue Feb 21 13:21:48 JST 2017
;; MSG SIZE  rcvd: 76

2. G cache

$ dig warn.qmail.jp. @8.8.8.8

; <<>> DiG 9.9.5-3ubuntu0.13-Ubuntu <<>> warn.qmail.jp. @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 905
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;warn.qmail.jp.                 IN      A

;; ANSWER SECTION:
warn.qmail.jp.          2851    IN      CNAME   www.qmail.jp.
www.qmail.jp.           85652   IN      A       14.192.44.5

;; Query time: 39 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Feb 21 13:23:53 JST 2017
;; MSG SIZE  rcvd: 76