DNS问题

网事如风

AD域控制器上的DNS，AD域名js.kangfa.com
然后NSLOOKUP所有域名都在后面加.kangfa.com
请教问题出在哪里啊？

C:\>nslookup
*** Can't find server name for address 10.100.100.100: Non-existent domain
Default Server:  UnKnown
Address:  10.100.100.100
> 163.com
Server:  UnKnown
Address:  10.100.100.100
Non-authoritative answer:
Name:    163.com.kangfa.com
Address:  112.25.19.36
> www.baidu.com
Server:  UnKnown
Address:  10.100.100.100
Non-authoritative answer:
Name:    www.baidu.com.kangfa.com
Address:  112.25.19.36
> sina.com.cn
Server:  UnKnown
Address:  10.100.100.100
Non-authoritative answer:
Name:    sina.com.cn.kangfa.com
Address:  112.25.19.36
>