15:17:19 変更 2 時間で反映か。 (9.9.9.9 はまだ)
1. whois
$ dig -t ns tmaeno.com @8.8.8.8
; <<>> DiG 9.18.12-0ubuntu0.22.04.2-Ubuntu <<>> -t ns tmaeno.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1326
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
; NSID: 67 70 64 6e 73 2d 6e 72 74 ("gpdns-nrt")
;; QUESTION SECTION:
;tmaeno.com. IN NS
;; ANSWER SECTION:
tmaeno.com. 21595 IN NS decker.ns.cloudflare.com.
tmaeno.com. 21595 IN NS kallie.ns.cloudflare.com.
;; Query time: 4 msec
;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
;; WHEN: Tue Aug 01 17:17:14 JST 2023
;; MSG SIZE rcvd: 108