1. watchNS/gmoserver.jp
2. whois
Domain Information: [Domain Name] GMOSERVER.JP [Registrant] Global Media Online Inc. [Name Server] ns1.gmointernet.com [Name Server] ns1.gmointernet.jp [Signing Key] [Created on] 2004/08/24 [Expires on] 2019/08/31 [Status] Active [Last Updated] 2018/09/01 01:05:11 (JST) ;; AUTHORITY SECTION: gmoserver.jp. 86400 IN NS ns1.gmointernet.com. gmoserver.jp. 86400 IN NS ns1.gmointernet.jp. ;; ADDITIONAL SECTION: ns1.gmointernet.jp. 86400 IN A 157.7.33.254
3. zone server
$ dnsq ns gmoserver.jp 157.7.33.254 2 gmoserver.jp: 95 bytes, 1+2+0+0 records, response, authoritative, noerror query: 2 gmoserver.jp answer: gmoserver.jp 86400 NS ns1.gmointernet.jp answer: gmoserver.jp 86400 NS ns1.gmointernet.com
$ dnsq a dns01.gmoserver.jp 157.7.33.254 1 dns01.gmoserver.jp: 117 bytes, 1+1+2+0 records, response, authoritative, noerror query: 1 dns01.gmoserver.jp answer: dns01.gmoserver.jp 300 A 163.44.90.113 authority: gmoserver.jp 86400 NS ns1.gmointernet.jp authority: gmoserver.jp 86400 NS ns1.gmointernet.com $ dnsq a dns02.gmoserver.jp 157.7.33.254 1 dns02.gmoserver.jp: 115 bytes, 1+1+2+0 records, response, authoritative, noerror query: 1 dns02.gmoserver.jp answer: dns02.gmoserver.jp 300 A 157.7.231.209 authority: gmoserver.jp 86400 NS ns1.gmointernet.com authority: gmoserver.jp 86400 NS ns1.gmointernet.jp