DNS/実装/unbound/qname minimisation/a.b.c.d.qmail.jpについて、ここに記述してください。
[1469181531] unbound[1257:0] info: resolving a.b.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <jp.> 192.50.43.53#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving qmail.jp. NS IN [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: response for d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <jp.> 202.12.30.131#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving qmail.jp. NS IN [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <d.qmail.jp.> 14.192.44.29#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: response for d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving x.ns.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: response for c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <jp.> 203.119.1.1#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving qmail.jp. NS IN [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: response for d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <d.qmail.jp.> 14.192.44.29#53 [1469181531] unbound[1257:0] info: query response was ANSWER [1469181531] unbound[1257:0] info: response for x.ns.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <d.qmail.jp.> 14.192.44.29#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving a.b.c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: resolving qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: response for x.ns.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <d.qmail.jp.> 14.192.44.29#53 [1469181531] unbound[1257:0] info: query response was ANSWER [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <d.qmail.jp.> 14.192.44.29#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: response for c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <d.qmail.jp.> 14.192.44.29#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving a.ns.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: response for a.ns.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was ANSWER [1469181531] unbound[1257:0] info: response for a.ns.c.d.qmail.jp. A IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was ANSWER [1469181531] unbound[1257:0] info: response for a.b.c.d.qmail.jp. NS IN [1469181531] unbound[1257:0] info: reply from <c.d.qmail.jp.> 14.192.44.5#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <com.> 192.52.178.30#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving e-ontap.com. NS IN [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 14.192.44.1#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: resolving qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <.> 202.12.27.33#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving com. NS IN [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <com.> 192.52.178.30#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for qmailzzz.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 14.192.44.1#53 [1469181531] unbound[1257:0] info: query response was NXDOMAIN ANSWER [1469181531] unbound[1257:0] info: response for e-ontap.com. NS IN [1469181531] unbound[1257:0] info: reply from <com.> 192.41.162.30#53 [1469181531] unbound[1257:0] info: query response was REFERRAL [1469181531] unbound[1257:0] info: resolving ns.e-ontap.com. A IN [1469181531] unbound[1257:0] info: resolving ns2.e-ontap.com. A IN [1469181531] unbound[1257:0] info: response for e-ontap.com. NS IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was ANSWER [1469181531] unbound[1257:0] info: response for ns2.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was nodata ANSWER [1469181531] unbound[1257:0] info: response for ns.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was nodata ANSWER [1469181531] unbound[1257:0] info: response for ns2.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was ANSWER [1469181531] unbound[1257:0] info: response for ns.e-ontap.com. A IN [1469181531] unbound[1257:0] info: reply from <e-ontap.com.> 49.212.106.253#53 [1469181531] unbound[1257:0] info: query response was ANSWER