[root@localhost wj]# nslookup
> server 192.168.0.113 // 切換 dns 伺服器為上面配置好的
Default server: 192.168.0.113
Address: 192.168.0.113#53
> bind.david.cn // 正向解析 A 類型
Server: 192.168.0.113
Address: 192.168.0.113#53
Name: bind.david.cn
Address: 192.168.0.113
> mailsrv.david.cn // 正向解析 A 類型
Server: 192.168.0.113
Address: 192.168.0.113#53
Name: mailsrv.david.cn
Address: 192.168.0.250
> set q=mx // 正向解析 MX 類型
> david.cn
Server: 192.168.0.113
Address: 192.168.0.113#53
david.cn mail exchanger = 10 mailsrv.david.cn.
> www.david.cn // 正向解析 CNAME 類型
Server: 192.168.0.113
Address: 192.168.0.113#53
www.david.cn canonical name = bind.david.cn.
> 192.168.0.113 // 反向解析
Server: 192.168.0.113
Address: 192.168.0.113#53
113.0.168.192.in-addr.arpa name = bind.david.cn.
> 192.168.0.250 // 反向解析
Server: 192.168.0.113
Address: 192.168.0.113#53
250.0.168.192.in-addr.arpa name = mailsrv.david.cn.0.168.192.in-addr.arpa.
>
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