CentOS下搭建DNS服务器( 三 ) _DNS服务器

> 172-16-1-51.realhostip.com

Server: 172.16.1.4

Address: 172.16.1.4#53

Name: 172-16-1-51.realhostip.com

Address: 172.16.1.51

从结果可以看到，我们配置的两个域名都能成功解析，并且DNS服务器就是我们配置的那个服务器。

4. 反向解析，使用nslookup命令
#nslookup
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从结果来看，可以正确解析我们的IP地址，并且DNS服务器就是我们配置的那个服务器。

5. 查看realhostip.com这个域名是哪个DNS服务器管理的，使用dig命令
# dig -t ns realhostip.com
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6. 使用dig命令进行正向解析
# dig 172-16-1-50.realhostip.com
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; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> 172-16-1-50.realhostip.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21109
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2
;; QUESTION SECTION:
;172-16-1-50.realhostip.com. IN A
;; ANSWER SECTION:
172-16-1-50.realhostip.com. 86400 IN A 172.16.1.50
;; AUTHORITY SECTION:
realhostip.com. 86400 IN NS realhostip.com.
;; ADDITIONAL SECTION:
realhostip.com. 86400 IN A 172.16.1.4
realhostip.com. 86400 IN AAAA ::1
;; Query time: 1 msec
;; SERVER: 172.16.1.4#53(172.16.1.4)
;; WHEN: Wed Oct 23 14:17:57 2013
;; MSG SIZE rcvd: 118