DNS/FCP/root-dnskey/dnssecについて、ここに記述してください。

1. bufsize 1024

TCP retry 

$ dig -t dnskey . +qr +dnssec +bufsize=1024 @8.8.8.8

; <<>> DiG 9.12.1 <<>> -t dnskey . +qr +dnssec +bufsize=1024 @8.8.8.8
;; global options: +cmd
;; Sending:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46614
;; flags: rd ad; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 1024
; COOKIE: 2a68ef83a1de6d14
;; QUESTION SECTION:
;.                              IN      DNSKEY

;; QUERY SIZE: 40

;; Truncated, retrying in TCP mode.
;; Sending:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6764
;; flags: rd ad; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 1024
; COOKIE: 2a68ef83a1de6d14
;; QUESTION SECTION:
;.                              IN      DNSKEY

;; QUERY SIZE: 40

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6764
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 512
;; QUESTION SECTION:
;.                              IN      DNSKEY

;; ANSWER SECTION:
.                       132767  IN      DNSKEY  257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3 +/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kv ArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF 0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+e oZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfd RUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwN R1AkUTV74bU=
.                       132767  IN      DNSKEY  257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0=
.                       132767  IN      DNSKEY  256 3 8 AwEAAdp440E6Mz7c+Vl4sPd0lTv2Qnc85dTW64j0RDD7sS/zwxWDJ3QR ES2VKDO0OXLMqVJSs2YCCSDKuZXpDPuf++YfAu0j7lzYYdWTGwyNZhEa XtMQJIKYB96pW6cRkiG2Dn8S2vvo/PxW9PKQsyLbtd8PcwWglHgReBVp 7kEv/Dd+3b3YMukt4jnWgDUddAySg558Zld+c9eGWkgWoOiuhg4rQRkF stMX1pRyOSHcZuH38o1WcsT4y3eT0U/SR6TOSLIB/8Ftirux/h297oS7 tCcwSPt0wwry5OFNTlfMo8v7WGurogfk8hPipf7TTKHIi20LWen5RCsv YsQBkYGpF78=
.                       132767  IN      RRSIG   DNSKEY 8 0 172800 20181201000000 20181110000000 20326 . G2ofjNgbgRxjpJCMi0YSXi60QLTBRLmZ+cjFKSy7nsBHBTDCfm0wPM7L iS53mDGWrXfUZjcG5AFrAvx+fOtLtK6hr4Bu6gA8hx7dhAJ8pSgV+dLu fhi6AK6EwdnIjHQWAFChpkQD9zGV0k4siI0H/LvwtdmMsZTpRR2Z63DD 1ZtnUylPxchLjdqHvguhqXMrMldFirbKm5olYf6pf1/uadWwh/4uNRUW soQJSaKJSzVYVehJrjX6HZ0FQdV6OHEfSbAjG5jJGtqfmvDI1F8sm4XS xIPL+CT9sgssM9rXijylFWbHvMSNcb7Z3sdcOE8Jhuato2F910Nu4mGm gy5JTw==

;; Query time: 12 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Nov 11 10:25:03 JST 2018
;; MSG SIZE  rcvd: 1139

2. bufsize open

$ dig -t dnskey . +qr +dnssec @8.8.8.8

; <<>> DiG 9.12.1 <<>> -t dnskey . +qr +dnssec @8.8.8.8
;; global options: +cmd
;; Sending:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61553
;; flags: rd ad; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
; COOKIE: 46dfd8e388bbf922
;; QUESTION SECTION:
;.                              IN      DNSKEY

;; QUERY SIZE: 40

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61553
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 512
;; QUESTION SECTION:
;.                              IN      DNSKEY

;; ANSWER SECTION:
.                       168865  IN      DNSKEY  256 3 8 AwEAAdp440E6Mz7c+Vl4sPd0lTv2Qnc85dTW64j0RDD7sS/zwxWDJ3QR ES2VKDO0OXLMqVJSs2YCCSDKuZXpDPuf++YfAu0j7lzYYdWTGwyNZhEa XtMQJIKYB96pW6cRkiG2Dn8S2vvo/PxW9PKQsyLbtd8PcwWglHgReBVp 7kEv/Dd+3b3YMukt4jnWgDUddAySg558Zld+c9eGWkgWoOiuhg4rQRkF stMX1pRyOSHcZuH38o1WcsT4y3eT0U/SR6TOSLIB/8Ftirux/h297oS7 tCcwSPt0wwry5OFNTlfMo8v7WGurogfk8hPipf7TTKHIi20LWen5RCsv YsQBkYGpF78=
.                       168865  IN      DNSKEY  257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0=
.                       168865  IN      DNSKEY  257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3 +/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kv ArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF 0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+e oZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfd RUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwN R1AkUTV74bU=
.                       168865  IN      RRSIG   DNSKEY 8 0 172800 20181201000000 20181110000000 20326 . G2ofjNgbgRxjpJCMi0YSXi60QLTBRLmZ+cjFKSy7nsBHBTDCfm0wPM7L iS53mDGWrXfUZjcG5AFrAvx+fOtLtK6hr4Bu6gA8hx7dhAJ8pSgV+dLu fhi6AK6EwdnIjHQWAFChpkQD9zGV0k4siI0H/LvwtdmMsZTpRR2Z63DD 1ZtnUylPxchLjdqHvguhqXMrMldFirbKm5olYf6pf1/uadWwh/4uNRUW soQJSaKJSzVYVehJrjX6HZ0FQdV6OHEfSbAjG5jJGtqfmvDI1F8sm4XS xIPL+CT9sgssM9rXijylFWbHvMSNcb7Z3sdcOE8Jhuato2F910Nu4mGm gy5JTw==

;; Query time: 6 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Nov 11 10:27:13 JST 2018
;; MSG SIZE  rcvd: 1139