随着Internet的发展和广泛使用,人们在享受高技术带来方便的同时,也受到了网络安全方面的威胁。文章主要探讨网络安全的一个方面即域名系统安全问题,主要内容有:域名转换、域名系统、域名系统欺编的产生、域名系统安全缺陷和防止域名系统欺骗方法等 With the development and widespread use of the Internet, people are also threatened by network security while enjoying the convenience brought by high technology. The article mainly discusses one aspect of network security, namely, the issue of domain name system security. The main contents are as follows: domain name conversion, domain name system, generation of domain name system bully, security flaws of domain name system and methods to prevent domain name system deceiving