反応はよくない。
1. whois
$ dig -t ns mappy.com @8.8.8.8 ; <<>> DiG 9.18.12-0ubuntu0.22.04.1-Ubuntu <<>> -t ns mappy.com @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 41915 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, 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: ;mappy.com. IN NS ;; Query time: 3008 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP) ;; WHEN: Fri May 05 16:51:15 JST 2023 ;; MSG SIZE rcvd: 51
2. history
mappy.net. 86400 IN NS ns1.mappy.net. mappy.net. 86400 IN NS ns2.mappy.net. ns1.mappy.net. 3600 IN A 193.203.35.251 ns2.mappy.net. 3600 IN A 193.203.33.251