```
[dorothy /Users/dorothy]$dig
yahoo.com @
9.9.9.9
; <<>> DiG 9.9.7-P3 <<>>
yahoo.com @
9.9.9.9
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8081
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 5, ADDITIONAL: 8
;; QUESTION SECTION:
;
yahoo.com. IN A
;; ANSWER SECTION:
yahoo.com. 1514 IN A 98.138.252.38
yahoo.com. 1514 IN A 206.190.39.42
yahoo.com. 1514 IN A 98.139.180.180
;; AUTHORITY SECTION:
yahoo.com. 172575 IN NS
ns2.yahoo.com.
yahoo.com. 172575 IN NS
ns3.yahoo.com.
yahoo.com. 172575 IN NS
ns5.yahoo.com.
yahoo.com. 172575 IN NS
ns1.yahoo.com.
yahoo.com. 172575 IN NS
ns4.yahoo.com.
;; ADDITIONAL SECTION:
ns1.yahoo.com. 172575 IN A 68.180.131.16
ns1.yahoo.com. 172575 IN AAAA 2001:4998:130::1001
ns2.yahoo.com. 172575 IN A 68.142.255.16
ns2.yahoo.com. 172575 IN AAAA 2001:4998:140::1002
ns3.yahoo.com. 172575 IN A 203.84.221.53
ns3.yahoo.com. 172575 IN AAAA 2406:8600:b8:fe03::1003
ns4.yahoo.com. 172575 IN A 98.138.11.157
ns5.yahoo.com. 172575 IN A 119.160.247.124
;; Query time: 4 msec
;; SERVER: 9.9.9.9#53(9.9.9.9)
;; WHEN: Sat Nov 18 02:03:55 CST 2017
;; MSG SIZE rcvd: 329
[dorothy /Users/dorothy]$
```
没毛病