unbound/log/eduについて、ここに記述してください。
delegation/glue情報を使いながらも、権威ある情報を集めていることが分かる。
$ dig -t ns edu
; <<>> DiG 9.9.5-3ubuntu0.7-Ubuntu <<>> -t ns edu ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63373 ;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;edu. IN NS ;; ANSWER SECTION: edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS d.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS f.edu-servers.net. edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS g.edu-servers.net. ;; Query time: 261 msec ;; SERVER: 127.0.0.2#53(127.0.0.2) ;; WHEN: Mon Jan 25 11:25:44 JST 2016 ;; MSG SIZE rcvd: 143
1. unbound log
[1453688744] unbound[1723:0] info: resolving edu. NS IN [1453688744] unbound[1723:0] info: response for edu. NS IN [1453688744] unbound[1723:0] info: reply from <.> 192.203.230.10#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: resolving c.edu-servers.net. A IN [1453688744] unbound[1723:0] info: resolving d.edu-servers.net. A IN [1453688744] unbound[1723:0] info: resolving f.edu-servers.net. A IN [1453688744] unbound[1723:0] info: resolving g.edu-servers.net. A IN [1453688744] unbound[1723:0] info: resolving l.edu-servers.net. A IN [1453688744] unbound[1723:0] info: resolving g.edu-servers.net. AAAA IN [1453688744] unbound[1723:0] info: resolving a.edu-servers.net. A IN [1453688744] unbound[1723:0] info: response for g.edu-servers.net. AAAA IN [1453688744] unbound[1723:0] info: reply from <net.> 192.31.80.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: resolving edu-servers.net. NS IN [1453688744] unbound[1723:0] info: resolving av2.nstld.com. A IN [1453688744] unbound[1723:0] info: response for f.edu-servers.net. A IN [1453688744] unbound[1723:0] info: reply from <net.> 192.5.6.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: resolving av3.nstld.com. A IN [1453688744] unbound[1723:0] info: response for d.edu-servers.net. A IN [1453688744] unbound[1723:0] info: reply from <net.> 192.5.6.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: response for edu. NS IN [1453688744] unbound[1723:0] info: reply from <edu.> 192.41.162.30#53 [1453688744] unbound[1723:0] info: query response was ANSWER [1453688744] unbound[1723:0] info: response for a.edu-servers.net. A IN [1453688744] unbound[1723:0] info: reply from <net.> 192.54.112.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: response for l.edu-servers.net. A IN [1453688744] unbound[1723:0] info: reply from <net.> 192.52.178.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: resolving av4.nstld.com. A IN [1453688744] unbound[1723:0] info: response for g.edu-servers.net. A IN [1453688744] unbound[1723:0] info: reply from <net.> 192.43.172.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: response for edu-servers.net. NS IN [1453688744] unbound[1723:0] info: reply from <net.> 192.35.51.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: response for c.edu-servers.net. A IN [1453688744] unbound[1723:0] info: reply from <net.> 192.12.94.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: resolving av1.nstld.com. A IN [1453688744] unbound[1723:0] info: response for av2.nstld.com. A IN [1453688744] unbound[1723:0] info: reply from <com.> 192.5.6.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: resolving nstld.com. NS IN [1453688744] unbound[1723:0] info: response for av2.nstld.com. A IN [1453688744] unbound[1723:0] info: reply from <nstld.com.> 192.82.134.30#53 [1453688744] unbound[1723:0] info: query response was ANSWER [1453688744] unbound[1723:0] info: response for av1.nstld.com. A IN [1453688744] unbound[1723:0] info: reply from <com.> 192.52.178.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: response for av3.nstld.com. A IN [1453688744] unbound[1723:0] info: reply from <com.> 192.52.178.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688744] unbound[1723:0] info: response for av4.nstld.com. A IN [1453688744] unbound[1723:0] info: reply from <com.> 192.41.162.30#53 [1453688744] unbound[1723:0] info: query response was REFERRAL [1453688745] unbound[1723:0] info: response for av3.nstld.com. A IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.177.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for g.edu-servers.net. AAAA IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for a.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for d.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for av1.nstld.com. A IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for nstld.com. NS IN [1453688745] unbound[1723:0] info: reply from <com.> 192.52.178.30#53 [1453688745] unbound[1723:0] info: query response was REFERRAL [1453688745] unbound[1723:0] info: resolving av2.nstld.com. A IN [1453688745] unbound[1723:0] info: resolving av3.nstld.com. A IN [1453688745] unbound[1723:0] info: resolving av4.nstld.com. A IN [1453688745] unbound[1723:0] info: resolving av1.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: resolving av2.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: resolving av3.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: resolving av4.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: resolving av1.nstld.com. A IN [1453688745] unbound[1723:0] info: response for av4.nstld.com. A IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for f.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.133.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for g.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.133.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for edu-servers.net. NS IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.134.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for av4.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.82.133.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for f.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.133.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for g.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.133.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for l.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.134.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for g.edu-servers.net. AAAA IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for a.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for nstld.com. NS IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.177.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for av3.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.177.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for c.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.177.30#53 [1453688745] unbound[1723:0] info: query response was nodata ANSWER [1453688745] unbound[1723:0] info: response for d.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for av2.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for av1.nstld.com. AAAA IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for av4.nstld.com. A IN [1453688745] unbound[1723:0] info: reply from <nstld.com.> 192.42.178.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for l.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.82.134.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER [1453688745] unbound[1723:0] info: response for c.edu-servers.net. A IN [1453688745] unbound[1723:0] info: reply from <edu-servers.net.> 192.42.177.30#53 [1453688745] unbound[1723:0] info: query response was ANSWER