我不明白为什么此CNAME无法正常工作：
$ curl test8-kounta.test.kounta.com
curl: (6) Couldn't resolve host 'test8-kounta.test.kounta.com'
$ curl test8.kounta.com
# Success
$ curl 54.187.189.133
# Success
$ nslookup test8-kounta.test.kounta.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
test8-kounta.test.kounta.com canonical name = test8.kounta.com.
Name: test8.kounta.com
Address: 54.187.189.133
Name: test8.kounta.com
Address: 54.69.18.31
我想念什么？