DNS/TCP/datahotel.ne.jpについて、ここに記述してください。
$ dig +tcp -t ns bitcash.co.jp @a.dns.jp ; <<>> DiG 9.12.1 <<>> +tcp -t ns bitcash.co.jp @a.dns.jp ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 471 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 3 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;bitcash.co.jp. IN NS ;; AUTHORITY SECTION: bitcash.co.jp. 86400 IN NS zns02.datahotel.ne.jp. bitcash.co.jp. 86400 IN NS zns01.datahotel.ne.jp. ;; ADDITIONAL SECTION: zns01.datahotel.ne.jp. 86400 IN A 203.174.65.4 zns02.datahotel.ne.jp. 86400 IN A 203.174.65.68 ;; Query time: 6 msec ;; SERVER: 203.119.1.1#53(203.119.1.1) ;; WHEN: Mon Apr 23 13:22:08 JST 2018 ;; MSG SIZE rcvd: 127 tmaeno@u16:~$ dig +tcp -t ns bitcash.co.jp @zns01.datahotel.ne.jp ;; communications error to 203.174.65.4#53: end of file ;; communications error to 203.174.65.4#53: end of file