1. watchA
2. whois
a. [Domain Name] KOEN.AC.JP g. [Organization] KOEN SCHOOL l. [Organization Type] AC m. [Administrative Contact] RK645JP n. [Technical Contact] YT3757JP p. [Name Server] dns.koen.ac.jp p. [Name Server] ns-kg022.ocn.ad.jp s. [Signing Key] [State] Connected (2022/07/31) [Registered Date] 2000/07/31 [Connected Date] 2000/08/22 [Last Update] 2021/08/01 01:06:08 (JST)
dns.koen.ac.jp. 3600 IN A 60.32.100.122
3. history
$ dig -t ns koen.ac.jp @60.32.100.122 ; <<>> DiG 9.11.3-1ubuntu1.14-Ubuntu <<>> -t ns koen.ac.jp @60.32.100.122 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 61855 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;koen.ac.jp. IN NS ;; Query time: 62 msec ;; SERVER: 60.32.100.122#53(60.32.100.122) ;; WHEN: Tue Nov 09 11:02:23 JST 2021 ;; MSG SIZE rcvd: 39