TLD/eduについて、ここに記述してください。
com, net, gov, edu, gov は似た設定。
- *-servers.net に委譲。
- *-servers.net は av*.nstld.com に委譲
- ここで問題が、... glue はどこに
-- ToshinoriMaeno 2016-01-20 23:48:56
govを追いかけるのがわかりやすいかも。
*.edu-servers.net は *.gtld-servers.net と同じIPアドレスを持っているようだ。 -- ToshinoriMaeno 2016-01-24 13:20:28
$ dnsq ns edu a.root-servers.net
2 edu: 256 bytes, 1+0+6+7 records, response, noerror query: 2 edu authority: edu 172800 NS l.edu-servers.net authority: edu 172800 NS g.edu-servers.net authority: edu 172800 NS f.edu-servers.net authority: edu 172800 NS d.edu-servers.net authority: edu 172800 NS c.edu-servers.net authority: edu 172800 NS a.edu-servers.net additional: l.edu-servers.net 172800 A 192.41.162.30 additional: g.edu-servers.net 172800 A 192.42.93.30 additional: g.edu-servers.net 172800 28 \040\001\005\003\314,\000\000\000\000\000\000\000\002\0006 additional: f.edu-servers.net 172800 A 192.35.51.30 additional: d.edu-servers.net 172800 A 192.31.80.30 additional: c.edu-servers.net 172800 A 192.26.92.30 additional: a.edu-servers.net 172800 A 192.5.6.30
$ dnsq ns edu 192.5.6.30
2 edu: 256 bytes, 1+6+0+7 records, response, authoritative, noerror query: 2 edu answer: edu 172800 NS a.edu-servers.net answer: edu 172800 NS g.edu-servers.net answer: edu 172800 NS l.edu-servers.net answer: edu 172800 NS f.edu-servers.net answer: edu 172800 NS c.edu-servers.net answer: edu 172800 NS d.edu-servers.net additional: a.edu-servers.net 172800 A 192.5.6.30 additional: g.edu-servers.net 172800 A 192.42.93.30 additional: g.edu-servers.net 172800 28 \040\001\005\003\314,\000\000\000\000\000\000\000\002\0006 additional: l.edu-servers.net 172800 A 192.41.162.30 additional: f.edu-servers.net 172800 A 192.35.51.30 additional: c.edu-servers.net 172800 A 192.26.92.30 additional: d.edu-servers.net 172800 A 192.31.80.30
$ dnsq ns edu-servers.net 192.5.6.30
2 edu-servers.net: 290 bytes, 1+0+4+8 records, response, noerror query: 2 edu-servers.net authority: edu-servers.net 172800 NS av1.nstld.com authority: edu-servers.net 172800 NS av2.nstld.com authority: edu-servers.net 172800 NS av3.nstld.com authority: edu-servers.net 172800 NS av4.nstld.com additional: av1.nstld.com 172800 A 192.42.177.30 additional: av1.nstld.com 172800 28 \040\001\005\000\001$\000\000\000\000\000\000\000\000\0000 additional: av2.nstld.com 172800 A 192.42.178.30 additional: av2.nstld.com 172800 28 \040\001\005\000\001%\000\000\000\000\000\000\000\000\0000 additional: av3.nstld.com 172800 A 192.82.133.30 additional: av3.nstld.com 172800 28 \040\001\005\000\001&\000\000\000\000\000\000\000\000\0000 additional: av4.nstld.com 172800 A 192.82.134.30 additional: av4.nstld.com 172800 28 \040\001\005\000\001'\000\000\000\000\000\000\000\000\0000
$ dnsq soa edu-servers.net 192.42.177.30
6 edu-servers.net: 169 bytes, 1+1+4+0 records, response, authoritative, noerror query: 6 edu-servers.net answer: edu-servers.net 86400 SOA av4.nstld.com nstld.verisign-grs.com 2016010700 3600 900 1209600 86400 authority: edu-servers.net 86400 NS av1.nstld.com authority: edu-servers.net 86400 NS av3.nstld.com authority: edu-servers.net 86400 NS av2.nstld.com authority: edu-servers.net 86400 NS av4.nstld.com