1. cdn.sharp
1.1. delegation
$ dig -t ns cdn.sharp @a.gmoregistry.net
; <<>> DiG 9.18.12-0ubuntu0.22.04.1-Ubuntu <<>> -t ns cdn.sharp @a.gmoregistry.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49026
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; NSID: 64 6e 73 32 2e 6a 70 74 79 6f 31 ("dns2.jptyo1")
;; QUESTION SECTION:
;cdn.sharp. IN NS
;; AUTHORITY SECTION:
cdn.sharp. 86400 IN NS tg1.sharp.co.jp.
cdn.sharp. 86400 IN NS ns1.sharp.co.jp.
;; Query time: 3 msec
;; SERVER: 37.209.192.4#53(a.gmoregistry.net) (UDP)
;; WHEN: Thu Jun 08 04:53:19 JST 2023
;; MSG SIZE rcvd: 100
1.2. authoritative response
NS, SOA なし。
- Empty Non Terminal !!
ns1.front.cdn.sharp
www.cdn.sharp
www.sharp-world.com.front.cdn.sharp
cdn.sharp-eps-prod.edge.cdn.sharp
cdn.sharp-acs-stage.edge.cdn.sharp
cdn.sharp-acs-prod.edge.cdn.sharp
traffic-router.edge.cdn.sharp
1.3. whois
cdn.sharp. 86400 IN NS tg1.sharp.co.jp. cdn.sharp. 86400 IN NS ns1.sharp.co.jp.
$ dig -t ns cdn.sharp @ns1.sharp.co.jp. ; <<>> DiG 9.16.1-Ubuntu <<>> -t ns cdn.sharp @ns1.sharp.co.jp. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33358 ;; flags: qr aa rd cd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: d8f2afc4c1a97f4ce396ac0e5fd9d124ade1d22bd9735b06 (good) ;; QUESTION SECTION: ;cdn.sharp. IN NS ;; AUTHORITY SECTION: sharp. 600 IN SOA ns1.sharp.co.jp. postmaster.sharp.co.jp. 2020121501 3600 1800 1209600 3600 ;; Query time: 15 msec ;; SERVER: 61.214.248.154#53(61.214.248.154) ;; WHEN: 水 12月 16 18:19:32 JST 2020 ;; MSG SIZE rcvd: 128