DNS 解析 nslookup
[root@centos7 /]# nslookup
> wwww.baidu.com #这是输入的域名
Server: 10.0.0.160
Address: 10.0.0.160#53
Non-authoritative answer: # 非权威的
wwww.baidu.com canonical name = ps_other.a.shifen.com.
Name: ps_other.a.shifen.com
Address: 39.156.66.10
>
想要用权威的地址的话,用server 106.11.141.111 这是个权威的dns 地址
> server 106.11.141.111
Default server: 106.11.141.111
Address: 106.11.141.111#53
> www.baidu.com
Server: 106.11.141.111
Address: 106.11.141.111#53
** server can't find www.baidu.com: NXDOMAIN
>exit 退出