DNS/KnotResolver/behavior/logについて、ここに記述してください。
$ dig -t ns a.b.c.d.qmail.jp
; <<>> DiG 9.11.1 <<>> -t ns a.b.c.d.qmail.jp ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29524 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: 1b8b51920b954925b7172fe859069763a2be6c76b968613a (good) ;; QUESTION SECTION: ;a.b.c.d.qmail.jp. IN NS ;; ANSWER SECTION: a.b.c.d.qmail.jp. 600 IN NS qmailzzz.e-ontap.com. ;; Query time: 54 msec ;; SERVER: 127.0.0.3#53(127.0.0.3) ;; WHEN: Mon May 01 11:03:15 JST 2017 ;; MSG SIZE rcvd: 107
1. log
@400000005906976d056fa3c4 [ 0][plan] plan 'a.b.c.d.qmail.jp.' type 'NS' @400000005906976d0574241c [26158][iter] 'a.b.c.d.qmail.jp.' type 'NS' id was assigned, parent id 0 @400000005906976d0574acd4 [26158][resl] NT check; abcdqmailjp cut dqmailjp @400000005906976d0574b0bc [26158][resl] kr peekpkt bcdqmailjp ret -116 @400000005906976d0574d7cc [26158][resl] kr peekpkt cdqmailjp ret -2 @400000005906976d0574d7cc [14629][iter] 'a.b.c.d.qmail.jp.' type 'NS' id was assigned, parent id 0 @400000005906976d057554cc [14629][resl] => querying: '14.192.44.29' score: 10 zone cut: 'd.qmail.jp.' m12n: 'C.d.QMaiL.JP.' type: 'NS' proto: 'udp' @400000005906976d062b52a4 [14629][iter] <= update zone cut name @400000005906976d062b568c [14629][iter] <= using glue for 'a.ns.c.d.qmail.jp.': '14.192.44.5' @400000005906976d062b5a74 [14629][iter] <= referral response, follow @400000005906976d062c0a3c [14629][resl] <= server: '14.192.44.29' rtt: 11 ms @400000005906976d062c508c [62155][iter] 'a.b.c.d.qmail.jp.' type 'NS' id was assigned, parent id 0 @400000005906976d062c873c [62155][resl] => querying: '14.192.44.5' score: 10 zone cut: 'c.d.qmail.jp.' m12n: 'b.C.d.QMAiL.jP.' type: 'NS' proto: 'udp' @400000005906976d06e6327c [62155][iter] <= rcode: NXDOMAIN @400000005906976d06e63664 [62155][iter] <= found cut, retrying with non-minimized name @400000005906976d06e6903c [62155][ pc ] => answer cached for TTL=900 @400000005906976d06e6a7ac [62155][resl] <= server: '14.192.44.5' rtt: 12 ms @400000005906976d06e6bb34 [46646][iter] 'a.b.c.d.qmail.jp.' type 'NS' id was assigned, parent id 0 @400000005906976d06e7632c [46646][resl] => querying: '14.192.44.5' score: 12 zone cut: 'c.d.qmail.jp.' m12n: 'a.B.C.D.QmAiL.jP.' type: 'NS' proto: 'udp' @400000005906976d0797ee7c [46646][iter] <= update zone cut name @400000005906976d0797f264 [46646][iter] <= referral response, follow @400000005906976d07986f64 [46646][resl] <= server: '14.192.44.5' rtt: 11 ms @400000005906976d079882ec [55574][iter] 'a.b.c.d.qmail.jp.' type 'NS' id was assigned, parent id 0 @400000005906976d07988ea4 [55574][plan] plan 'qmailzzz.e-ontap.com.' type 'A' @400000005906976d07989a5c [62907][iter] 'qmailzzz.e-ontap.com.' type 'A' id was assigned, parent id 55574 @400000005906976d07991b44 [62907][resl] NT check;qmailzzze-ontapcom cut e-ontapcom @400000005906976d07991f2c [62907][resl] kr peekpktqmailzzze-ontapcom ret -2 @400000005906976d07992314 [63954][iter] 'qmailzzz.e-ontap.com.' type 'A' id was assigned, parent id 55574 @400000005906976d07992314 [63954][resl] => querying: '49.212.106.253' score: 10 zone cut: 'e-ontap.com.' m12n: 'QmaILzZz.e-ONtaP.com.' type: 'A' proto: 'udp' @400000005906976d08a7d00c [63954][iter] <= rcode: NXDOMAIN @400000005906976d08a80aa4 [63954][ pc ] => answer cached for TTL=900 @400000005906976d08a80aa4 [63954][resl] <= server: '49.212.106.253' rtt: 17 ms @400000005906976d08a81e2c [25127][iter] 'a.b.c.d.qmail.jp.' type 'NS' id was assigned, parent id 0 @400000005906976d08a84154 [25127][ rc ] => satisfied from rrcache @400000005906976d08a850f4 [25127][iter] <= rcode: NOERROR @400000005906976d08a8f504 [ 0][resl] finished: 4, queries: 2, mempool: 16400 B