watchNS/xw.qmail.jp/pdns-recursorについて、ここに記述してください。 Powre DNS recursor も動かしてみた。
$ dig -t ns xw.qmail.jp @127.0.0.1
; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> -t ns xw.qmail.jp @127.0.0.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24990 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;xw.qmail.jp. IN NS ;; ANSWER SECTION: xw.qmail.jp. 3590 IN NS b.ns.xw.qmail.jp. ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Fri Dec 11 11:06:37 JST 2015 ;; MSG SIZE rcvd: 48
tmaeno@tm:~$ dig xw.qmail.jp @127.0.0.1
; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> xw.qmail.jp @127.0.0.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26722 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;xw.qmail.jp. IN A ;; ANSWER SECTION: xw.qmail.jp. 300 IN CNAME www.qmail.jp. www.qmail.jp. 86400 IN A 14.192.44.5 ;; Query time: 40 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Fri Dec 11 11:06:43 JST 2015 ;; MSG SIZE rcvd: 63