DNS/毒盛/AncillaryDataAttacks/cc.u-tokyo.ac.jpについて、ここに記述してください。

u-tokyo.ac.jp.          86400   IN      NS      dns3.nc.u-tokyo.ac.jp.
u-tokyo.ac.jp.          86400   IN      NS      dns2.nc.u-tokyo.ac.jp.
u-tokyo.ac.jp.          86400   IN      NS      dns1.nc.u-tokyo.ac.jp.
u-tokyo.ac.jp.          86400   IN      NS      dns-x.sinet.ad.jp.

%dig -t ns cc.u-tokyo.ac.jp @dns-x.sinet.ad.jp. 

; <<>> DiG 9.12.1 <<>> -t ns cc.u-tokyo.ac.jp @dns-x.sinet.ad.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21752
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 5, ADDITIONAL: 9

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 3f05b5f6d0c44f94e629b3e85eee06c2b26836470c8282a1 (good)
;; QUESTION SECTION:
;cc.u-tokyo.ac.jp.              IN      NS

;; AUTHORITY SECTION:
cc.u-tokyo.ac.jp.       43200   IN      NS      dns1.nc.u-tokyo.ac.jp.
cc.u-tokyo.ac.jp.       43200   IN      NS      dns3.nc.u-tokyo.ac.jp.
cc.u-tokyo.ac.jp.       43200   IN      NS      aoringo.cc.u-tokyo.ac.jp.
cc.u-tokyo.ac.jp.       43200   IN      NS      ringo.cc.u-tokyo.ac.jp.
cc.u-tokyo.ac.jp.       43200   IN      NS      dns2.nc.u-tokyo.ac.jp.

;; ADDITIONAL SECTION:
dns1.nc.u-tokyo.ac.jp.  43200   IN      A       133.11.0.1
dns2.nc.u-tokyo.ac.jp.  43200   IN      A       219.166.230.42
dns3.nc.u-tokyo.ac.jp.  43200   IN      A       157.82.0.1
ringo.cc.u-tokyo.ac.jp. 43200   IN      A       130.69.242.37
aoringo.cc.u-tokyo.ac.jp. 43200 IN      A       130.69.242.38
dns1.nc.u-tokyo.ac.jp.  43200   IN      AAAA    2001:200:180::35:1
dns2.nc.u-tokyo.ac.jp.  43200   IN      AAAA    2001:380:1ab::35:2
dns3.nc.u-tokyo.ac.jp.  43200   IN      AAAA    2001:200:180::35:3

;; Query time: 6 msec
;; SERVER: 150.100.18.2#53(150.100.18.2)
;; WHEN: Sat Jun 20 21:53:22 JST 2020
;; MSG SIZE  rcvd: 339