ルートゾーンKSK/日本では/dns-oarc.net/段階的検査について、ここに記述してください。
1. 1
$ dig txt rs.dns-oarc.net @a.gtld-servers.net
; <<>> DiG 9.11.1-P3 <<>> txt rs.dns-oarc.net @a.gtld-servers.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50640 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 7 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;rs.dns-oarc.net. IN TXT ;; AUTHORITY SECTION: dns-oarc.net. 172800 IN NS sns-pb.isc.org. dns-oarc.net. 172800 IN NS ns.dns-oarc.net. dns-oarc.net. 172800 IN NS ns2.dns-oarc.net. dns-oarc.net. 172800 IN NS ns3.dns-oarc.net. ;; ADDITIONAL SECTION: ns.dns-oarc.net. 172800 IN AAAA 2620:ff:c000:0:1::65 ns.dns-oarc.net. 172800 IN A 64.191.0.65 ns2.dns-oarc.net. 172800 IN A 192.211.126.36 ns2.dns-oarc.net. 172800 IN AAAA 2604:1f80:5eb::3 ns3.dns-oarc.net. 172800 IN AAAA 2a01:3f0:0:57::243 ns3.dns-oarc.net. 172800 IN A 77.72.225.243 ;; Query time: 7 msec ;; SERVER: 192.5.6.30#53(192.5.6.30) ;; WHEN: Thu Aug 24 00:21:51 JST 2017 ;; MSG SIZE rcvd: 257
2. 2
$ dig txt rs.dns-oarc.net @ns.dns-oarc.net
; <<>> DiG 9.11.1-P3 <<>> txt rs.dns-oarc.net @ns.dns-oarc.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35192 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 3 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: 4233d371d67f49ce5eee2239599d9dcced48bcfad0aa172d (good) ;; QUESTION SECTION: ;rs.dns-oarc.net. IN TXT ;; AUTHORITY SECTION: rs.dns-oarc.net. 3600 IN NS ns00.rs.dns-oarc.net. ;; ADDITIONAL SECTION: ns00.rs.dns-oarc.net. 3600 IN A 64.191.0.133 ns00.rs.dns-oarc.net. 3600 IN AAAA 2620:ff:c000:0:2::133 ;; Query time: 120 msec ;; SERVER: 64.191.0.65#53(64.191.0.65) ;; WHEN: Thu Aug 24 00:22:52 JST 2017 ;; MSG SIZE rcvd: 135
3. 3
やっと問い合わせるべきサーバーが見つかった。問い合わせると、巨大な返答が返る。
これが受け取れたとしても、まだ終っていない。
CNAME を追いかけなくてはいけない。 -- ToshinoriMaeno 2017-08-23 15:27:02
$ dig txt rs.dns-oarc.net @ns00.rs.dns-oarc.net ; <<>> DiG 9.11.1-P3 <<>> txt rs.dns-oarc.net @ns00.rs.dns-oarc.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50185 ;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 106, ADDITIONAL: 107 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;rs.dns-oarc.net. IN TXT ;; ANSWER SECTION: rs.dns-oarc.net. 60 IN CNAME rst.x4090.rs.dns-oarc.net. ;; 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 ns02.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 ... 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: 182 msec ;; SERVER: 64.191.0.133#53(64.191.0.133) ;; WHEN: Thu Aug 24 00:24:13 JST 2017 ;; MSG SIZE rcvd: 4090