DNS/実装/unbound/query.logについて、ここに記述してください。
qmail minimisationとcase randomizationとを有効にしてある。
1. dig f.ns.qmail.jpのログ
qmail.jp NS (tinydns)に送られてきたもの
@400000005669873d18ccceec 276e8703:d0ff:cdc3 + 0002 NS.qmAIL.JP @400000005669873d198f1d1c 276e8703:60a4:9b62 + 0002 nS.QmAIL.jp @400000005669873d1993dfdc 276e8703:defc:8c3f + 0001 F.nS.qMaIL.Jp @400000005669873d1993e3c4 276e8703:70cd:7a98 + 0002 QMAiL.jP @400000005669873d1a80c464 276e8703:5d9d:0110 + 0001 a.NS.QMAIL.jP
ns.qmail.jpはempty non-terminalなので、NS queryに対して、NXDOMAINを返している。
- ここは議論があるところなので、no data を返すようにしてみる。
-- ToshinoriMaeno 2015-12-10 14:21:24
2. unbound.log
jpサーバはキャッシュにある状態から
[1449756467] unbound[1051:0] info: resolving f.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: response for f.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: reply from <jp.> 192.50.43.53#53 [1449756467] unbound[1051:0] info: query response was REFERRAL [1449756467] unbound[1051:0] info: resolving qmail.jp. NS IN [1449756467] unbound[1051:0] info: response for f.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1449756467] unbound[1051:0] info: query response was NXDOMAIN ANSWER [1449756467] unbound[1051:0] info: response for qmail.jp. NS IN [1449756467] unbound[1051:0] info: reply from <jp.> 150.100.6.8#53 [1449756467] unbound[1051:0] info: query response was REFERRAL [1449756467] unbound[1051:0] info: resolving a.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: response for f.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1449756467] unbound[1051:0] info: query response was ANSWER [1449756467] unbound[1051:0] info: response for qmail.jp. NS IN [1449756467] unbound[1051:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1449756467] unbound[1051:0] info: query response was ANSWER [1449756467] unbound[1051:0] info: response for a.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1449756467] unbound[1051:0] info: query response was NXDOMAIN ANSWER [1449756467] unbound[1051:0] info: response for a.ns.qmail.jp. A IN [1449756467] unbound[1051:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1449756467] unbound[1051:0] info: query response was ANSWER
unbound側のlogがおかしいらしい。
- 問い合わせの名前がきちんと記録されていない。(ns.qmail.jp NSなど）
-- ToshinoriMaeno 2015-12-10 14:17:59