The paper simply introduced workin g process of domain name system ,the author also introdu ced the configuration of DNS under environment of Red Hat Linux 7.2syst em and the method of how to made the sub zone.

• 本文简述了域名解析的基本过程和在RedHatlinux7.；2平台上构建一个校园网域名服务器的配置过程和子域划分的方法。