= DNS/毒盛/AncillaryDataAttacks/titech.ac.jp =
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== 委譲返答 ==
以下のadditionl section は受け入れますか。-- ToshinoriMaeno <<DateTime(2020-06-20T21:46:22+0900)>>
{{{

%dig -t mx cc.titech.ac.jp @ns1.noc.titech.ac.jp                         ~/dnsq/tit

; <<>> DiG 9.12.1 <<>> -t mx cc.titech.ac.jp @ns1.noc.titech.ac.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3399
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 4

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;cc.titech.ac.jp.		IN	MX

;; AUTHORITY SECTION:
cc.titech.ac.jp.	3600	IN	NS	ns2.noc.titech.ac.jp.
cc.titech.ac.jp.	3600	IN	NS	dns-o.net.titech.ac.jp.
cc.titech.ac.jp.	3600	IN	NS	dns-s.net.titech.ac.jp.

;; ADDITIONAL SECTION:
ns2.noc.titech.ac.jp.	3600	IN	A	131.112.125.18
dns-o.net.titech.ac.jp.	900	IN	A	131.112.125.54
dns-s.net.titech.ac.jp.	900	IN	A	131.112.181.55

;; Query time: 7 msec
;; SERVER: 131.112.125.17#53(131.112.125.17)
;; WHEN: Sat Jun 20 21:46:58 JST 2020
;; MSG SIZE  rcvd: 158

}}}

== 権威サーバーの返答 ==
{{{
%dig -t mx cc.titech.ac.jp @ns2.noc.titech.ac.jp                         ~/dnsq/tit

; <<>> DiG 9.12.1 <<>> -t mx cc.titech.ac.jp @ns2.noc.titech.ac.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26198
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;cc.titech.ac.jp.		IN	MX

;; ANSWER SECTION:
cc.titech.ac.jp.	3600	IN	MX	10 filter.nap.gsic.titech.ac.jp.

;; AUTHORITY SECTION:
cc.titech.ac.jp.	3600	IN	NS	ns2.noc.titech.ac.jp.
cc.titech.ac.jp.	3600	IN	NS	dns-o.net.titech.ac.jp.
cc.titech.ac.jp.	3600	IN	NS	dns-s.net.titech.ac.jp.

;; ADDITIONAL SECTION:
ns2.noc.titech.ac.jp.	3600	IN	A	131.112.125.18
dns-o.net.titech.ac.jp.	900	IN	A	131.112.125.54
dns-s.net.titech.ac.jp.	900	IN	A	131.112.181.55

;; Query time: 6 msec
;; SERVER: 131.112.125.18#53(131.112.125.18)
;; WHEN: Sat Jun 20 21:42:38 JST 2020
;; MSG SIZE  rcvd: 190



}}}