随着网络时代的到来,计算机网络安全问题已经越来越受到大家的关注。特别是近年来的病毒肆意泛滥,更是让普通老百姓也知道计算机的问题非常棘手,本文主要通过分析网络入侵的手段,来解释计算机网络安全的问题,并简述了一些网络安全的相关技术,借以来研究防御网络入侵方法。 With the advent of the Internet age, the issue of computer network security has drawn more and more attention from everyone. Especially in recent years, wanton proliferation of viruses, but also to make ordinary people know the computer problem is very tricky, this paper mainly through the analysis of network intrusion means to explain the issue of computer network security, and a brief description of some network security related technologies, In order to study defense network invasion method.