我朋友家断网了,经查发现阿里 DNS 好像解析不出结果了。
以下数据来源于北京联通。
$ dig @223.5.5.5 www.v2ex.com
; <<>> DiG 9.16.2 <<>> @223.5.5.5 www.v2ex.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 21846
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.v2ex.com. IN A
;; Query time: 12 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Mon Jun 15 21:17:47 CST 2020
;; MSG SIZE rcvd: 30
以下数据来源于北京联通。
$ dig @223.5.5.5 www.v2ex.com
; <<>> DiG 9.16.2 <<>> @223.5.5.5 www.v2ex.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 21846
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.v2ex.com. IN A
;; Query time: 12 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Mon Jun 15 21:17:47 CST 2020
;; MSG SIZE rcvd: 30