@
Ipsum 就只返回了个 CNAME 不带 A 记录回来的
```
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id:
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;aa. IN A
;; Query time: 0 msec
;; SERVER: 119.29.29.29#53(119.29.29.29)
;; WHEN: Sat May 16 22:45:50 ;; MSG SIZE rcvd: 31
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 9
;; QUESTION SECTION:
;
www.baidu.com. IN A
;; ANSWER SECTION:
www.baidu.com. 600 IN CNAME
www.a.shifen.com.
;; AUTHORITY SECTION:
a.shifen.com. 64 IN NS
ns3.a.shifen.com.
a.shifen.com. 64 IN NS
ns4.a.shifen.com.
a.shifen.com. 64 IN NS
ns5.a.shifen.com.
a.shifen.com. 64 IN NS
ns1.a.shifen.com.
a.shifen.com. 64 IN NS
ns2.a.shifen.com.
;; ADDITIONAL SECTION:
ns2.a.shifen.com. 423 IN A 220.181.33.32
ns3.a.shifen.com. 36 IN A 36.155.132.12
ns3.a.shifen.com. 36 IN A 153.3.238.162
ns4.a.shifen.com. 180 IN A 14.215.177.229
ns4.a.shifen.com. 180 IN A 111.20.4.28
ns5.a.shifen.com. 436 IN A 180.76.76.95
ns1.a.shifen.com. 158 IN A 110.242.68.42
ns5.a.shifen.com. 436 IN AAAA 240e:bf:b801:1006:0:ff:b04f:346b
ns5.a.shifen.com. 436 IN AAAA 240e:940:603:a:0:ff:b08d:239d
;; Query time: 15 msec
;; SERVER: 119.29.29.29#53(119.29.29.29)
;; WHEN: Sat May 16 22:45:50 ;; MSG SIZE rcvd: 319
```