简易DNS域名解析程序，当其他电脑的DNS服务器IP设定为执行了该程序的机器的IP时，能够正常访问intnet

2、简单域名限制，对某个域名范围内的查询拒绝解析。

-Simple DNS domain name resolution process, when the other computer' s DNS server IP settings for the implementation of the program the machine' s IP, normal access intnet domain name restrictions, refused to resolve a domain name within the query.