1. watchA
ns1.sharp.co.jp サーバー内に jp.sharp ゾーンが存在しているなら、
cocoroplus.jp.sharp サブドメインのAを返答しても問題はない。だが、... -- ToshinoriMaeno 2021-08-24 04:19:05
2. whois
3. history
$ dig cocoroplus.jp.sharp @ns1.sharp.co.jp ; <<>> DiG 9.11.3-1ubuntu1.12-Ubuntu <<>> cocoroplus.jp.sharp @ns1.sharp.co.jp ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5674 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;cocoroplus.jp.sharp. IN A ;; ANSWER SECTION: cocoroplus.jp.sharp. 600 IN A 61.214.248.147 ;; AUTHORITY SECTION: sharp. 600 IN NS tg1.sharp.co.jp. sharp. 600 IN NS ns1.sharp.co.jp. ;; ADDITIONAL SECTION: ns1.sharp.co.jp. 43200 IN A 61.214.248.154 tg1.sharp.co.jp. 60 IN A 61.214.248.155 ;; Query time: 27 msec ;; SERVER: 61.214.248.154#53(61.214.248.154) ;; WHEN: Tue Nov 03 10:08:04 JST 2020 ;; MSG SIZE rcvd: 143