MoinQ: whoami.akamai.com

whoami.akamai.comについて、ここに記述してください。

Querying for “whoami.akamai.com”

The query should return the IP address of the resolver, as seen by the authoritative DNS servers run by Akamai.

$ dig whoami.akamai.com

; <<>> DiG 9.11.1 <<>> whoami.akamai.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39479
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1220
;; QUESTION SECTION:
;whoami.akamai.com.             IN      A

;; ANSWER SECTION:
whoami.akamai.com.      300     IN      CNAME   whoami.akamai.net.
whoami.akamai.net.      300     IN      A       39.110.xxx.yyy

;; Query time: 624 msec
;; SERVER: 127.0.0.2#53(127.0.0.2)
;; WHEN: Thu May 11 00:43:22 JST 2017
;; MSG SIZE  rcvd: 93

この返事を受け取るリゾルバーは毒盛される。ｗ

$ dig -x 39.110.xxx.yyy

; <<>> DiG 9.11.1 <<>> -x 39.110.xxx.yyy
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9154
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1220
;; QUESTION SECTION:
;yyy.xxx.110.39.in-addr.arpa.   IN      PTR

;; ANSWER SECTION:
yyy.xxx.110.39.in-addr.arpa. 600        IN      PTR     fpxxxxyyy.tkyczzz.ap.nuro.jp.

;; Query time: 462 msec
;; SERVER: 127.0.0.2#53(127.0.0.2)
;; WHEN: Thu May 11 00:43:40 JST 2017
;; MSG SIZE  rcvd: 98