@
vibbow 我这是教育网的 v6, 国外的 DNS 服务器都不行, 你是什么运营商的 IPv6 线路?
```
$ dig AAAA @
2001:503:d2d::30
n307.ns.yunjiasu.com ; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7 <<>> AAAA @
2001:503:d2d::30
n307.ns.yunjiasu.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22602
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;
n307.ns.yunjiasu.com. IN AAAA
;; ANSWER SECTION:
n307.ns.yunjiasu.com. 892 IN AAAA 2001::212
;; Query time: 2 msec
;; SERVER: 2001:503:d2d::30#53(2001:503:d2d::30)
;; WHEN: Mon Jul 23 03:54:39 EDT 2018
;; MSG SIZE rcvd: 66
```
```
$ dig AAAA @
2001:470:20::2
n307.ns.yunjiasu.com ; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7 <<>> AAAA @
2001:470:20::2
n307.ns.yunjiasu.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5381
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;
n307.ns.yunjiasu.com. IN AAAA
;; ANSWER SECTION:
n307.ns.yunjiasu.com. 892 IN AAAA 101::1234
;; Query time: 2 msec
;; SERVER: 2001:470:20::2#53(2001:470:20::2)
;; WHEN: Mon Jul 23 03:55:23 EDT 2018
;; MSG SIZE rcvd: 66
```