1. whois
$ dig -t any suigi.pref.iwate.jp ; <<>> DiG 9.18.12-0ubuntu0.22.04.1-Ubuntu <<>> -t any suigi.pref.iwate.jp ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37528 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 3 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ; NSID: 72 65 73 31 31 30 2e 71 68 6e 64 31 2e 72 72 64 6e 73 2e 70 63 68 2e 6e 65 74 ("res110.qhnd1.rrdns.pch.net") ;; QUESTION SECTION: ;suigi.pref.iwate.jp. IN ANY ;; ANSWER SECTION: suigi.pref.iwate.jp. 43200 IN SOA suiinfo.suigi.pref.iwate.jp. root.suiinfo.suigi.pref.iwate.jp. 20141007 10800 900 604800 86400 suigi.pref.iwate.jp. 43200 IN NS suiinfo.suigi.pref.iwate.jp. suigi.pref.iwate.jp. 43200 IN MX 10 teichi.suigi.pref.iwate.jp. ;; ADDITIONAL SECTION: suiinfo.suigi.pref.iwate.jp. 43200 IN A 210.239.23.145 teichi.suigi.pref.iwate.jp. 43200 IN A 210.239.23.146 ;; Query time: 100 msec ;; SERVER: 9.9.9.9#53(9.9.9.9) (TCP) ;; WHEN: Thu Jun 08 11:51:54 JST 2023 ;; MSG SIZE rcvd: 196