1. watchA

ns1 が NSを返していたことがある。

セカンダリサーバーとして動作 zone 転送を含む

2. whois

[Domain Name]                   STELLALINK.JP

[Registrant]                    Stellalink, Inc.

[Name Server]                   sphere.eternal-snow.com
[Name Server]                   ns1.dns.ne.jp
[Name Server]                   ns2.dns.ne.jp
[Name Server]                   2nd.dnsv.jp
[Signing Key]                   

[Created on]                    2011/12/21
[Expires on]                    2022/12/31
[Status]                        Active
[Last Updated]                  2022/01/01 01:05:08 (JST)

3. history

$ dig -t soa stellalink.jp @2nd.dnsv.jp

; <<>> DiG 9.11.3-1ubuntu1.16-Ubuntu <<>> -t soa stellalink.jp @2nd.dnsv.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29953
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; NSID: 64 63 61 ("dca")
;; QUESTION SECTION:
;stellalink.jp.                 IN      SOA

;; ANSWER SECTION:
stellalink.jp.          3600    IN      SOA     sphere.eternal-snow.com. hostmaster.eternal-snow.com. 2014052650 10800 3600 3600 3600

;; AUTHORITY SECTION:
stellalink.jp.          3600    IN      NS      2nd.dnsv.jp.
stellalink.jp.          3600    IN      NS      ns1.dns.ne.jp.
stellalink.jp.          3600    IN      NS      ns2.dns.ne.jp.
stellalink.jp.          3600    IN      NS      sphere.eternal-snow.com.

;; Query time: 16 msec
;; SERVER: 163.44.76.142#53(163.44.76.142)
;; WHEN: Tue Feb 15 20:29:18 JST 2022
;; MSG SIZE  rcvd: 199

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