摘要： 域名服务器的正确配置是提供优质鲁棒的网络服务的基础。大量工程实践表明，错误配置将严重影响网络应用。中国因特网是世界互联网的重要组成部分，发展日新月异，但管理水平参差不齐。该文采用多种实验方法对中国域名系统的配置状况进行了测量和分析。实验结果表明，.CN域中30％以上的区都存在配置问题，是中国互联网高效、安全运行的重大隐患，应引起足够重视。

关键词: 域名, 域名服务, 区, 无效授权, 冗余缩减

Abstract: The correct configuration of domain name servers is the foundation of good and robust performance of network service. Past operation practice has shown that incorrect configuration has severe impact on network services. In recent years, the .CN domain, an important part of Internet developed very rapidly. However, there are many issues arising in its management. The DNS configuration errors in .CN domain are measured and analyzed. It is found that over 30% zones suffer from misconfiguration errors. This problem may pose serious hinder to efficient and secure operation of Internet in China and should be brought enough attentions.

Key words: Domain name, Domain name service, Zone, Lame delegation, Reduced redundancy