Google Public DNS 支援 DNSSEC 驗證…

Google Public DNS 開始支援 DNSSEC 驗證,讓 DNS 查詢更安全:「Google Public DNS Now Supports DNSSEC Validation」。

一般的查詢還是可以查到:

; <<>> DiG 9.8.1-P1 <<>> bogussig.dnssec.tjeb.nl @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40844
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;bogussig.dnssec.tjeb.nl.       IN      A

;; ANSWER SECTION:
bogussig.dnssec.tjeb.nl. 422    IN      A       178.18.82.80

加上 DNSSEC 選項後就可以把有問題的抓出來:

; <<>> DiG 9.8.1-P1 <<>> bogussig.dnssec.tjeb.nl @8.8.8.8 +dnssec
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 61704
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 512
;; QUESTION SECTION:
;bogussig.dnssec.tjeb.nl.       IN      A

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