ルートゾーンKSK/日本では/dns-oarc.net/段階的検査/rst.x4090.rs.dns-oarc.netについて、ここに記述してください。
1. rst.x4090.rs.dns-oarc.net.
;; ANSWER SECTION: rs.dns-oarc.net. 60 IN CNAME rst.x4090.rs.dns-oarc.net.
についてきたAuthorityなどは信用してはいけない。（毒の可能性がある）
そこで、すでに得られているzone cut情報を使ってといあわせる。i
rs.dns-oarc.net. 3600 IN NS ns00.rs.dns-oarc.net.
2. 1
またも長い返答が返る。これを受け取れると、次に進める。:-)
ダンジョンの探索。-- ToshinoriMaeno 2017-08-23 15:38:06
$ dig txt rst.x4090.rs.dns-oarc.net. @ns00.rs.dns-oarc.net. ; <<>> DiG 9.11.1-P3 <<>> txt rst.x4090.rs.dns-oarc.net. @ns00.rs.dns-oarc.net. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61908 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 106, ADDITIONAL: 107 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;rst.x4090.rs.dns-oarc.net. IN TXT ;; AUTHORITY SECTION: x4090.rs.dns-oarc.net. 60 IN NS ns00.x4090.rs.dns-oarc.net. x4090.rs.dns-oarc.net. 60 IN NS ns01.x4090.rs.dns-oarc.net. ... x4090.rs.dns-oarc.net. 60 IN NS ns103.x4090.rs.dns-oarc.net. x4090.rs.dns-oarc.net. 60 IN NS ns104.x4090.rs.dns-oarc.net. x4090.rs.dns-oarc.net. 60 IN NS ns105.x4090.rs.dns-oarc.net. ;; ADDITIONAL SECTION: ns00.x4090.rs.dns-oarc.net. 60 IN A 64.191.0.134 ns01.x4090.rs.dns-oarc.net. 60 IN A 64.191.0.134 ns02.x4090.rs.dns-oarc.net. 60 IN A 64.191.0.134 ... ns103.x4090.rs.dns-oarc.net. 60 IN A 64.191.0.134 ns104.x4090.rs.dns-oarc.net. 60 IN A 64.191.0.134 ns105.x4090.rs.dns-oarc.net. 60 IN A 64.191.0.134 ;; Query time: 141 msec ;; SERVER: 64.191.0.133#53(64.191.0.133) ;; WHEN: Thu Aug 24 00:32:51 JST 2017 ;; MSG SIZE rcvd: 4071
3. 2
またもCNAMEが返ってくる。（今日はここまで）-- ToshinoriMaeno 2017-08-23 15:38:06
$ dig txt rst.x4090.rs.dns-oarc.net. @ns00.x4090.rs.dns-oarc.net.
; <<>> DiG 9.11.1-P3 <<>> txt rst.x4090.rs.dns-oarc.net. @ns00.x4090.rs.dns-oarc.net. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22533 ;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 105, ADDITIONAL: 106 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;rst.x4090.rs.dns-oarc.net. IN TXT ;; ANSWER SECTION: rst.x4090.rs.dns-oarc.net. 59 IN CNAME rst.x4058.x4090.rs.dns-oarc.net. ;; AUTHORITY SECTION: x4058.x4090.rs.dns-oarc.net. 59 IN NS ns00.x4058.x4090.rs.dns-oarc.net. x4058.x4090.rs.dns-oarc.net. 59 IN NS ns01.x4058.x4090.rs.dns-oarc.net. ...