DNS/テストサイト/brau.jp/he.netについて、ここに記述してください。
1. he.net
$ dig -t ns he4.brau.jp @ns2.he.net ; <<>> DiG 9.11.3-1ubuntu1.11-Ubuntu <<>> -t ns he4.brau.jp @ns2.he.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11956 ;; flags: qr aa rd; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1680 ;; QUESTION SECTION: ;he4.brau.jp. IN NS ;; ANSWER SECTION: he4.brau.jp. 86400 IN NS ns2.he.net. he4.brau.jp. 86400 IN NS ns3.he.net. he4.brau.jp. 86400 IN NS ns5.he.net. he4.brau.jp. 86400 IN NS ns1.he.net. he4.brau.jp. 86400 IN NS ns4.he.net. ;; Query time: 5 msec ;; SERVER: 216.218.131.2#53(216.218.131.2) ;; WHEN: Sat Dec 21 12:14:18 JST 2019 ;; MSG SIZE rcvd: 136