Ca technology is very popular to solve the application security problem, but there are few articles to introduce the design of RA system.
CA技术在解决应用系统安全问题比较流行，但很少有介绍RA系统设计的文章。
Firstly, in the paper I introduce network security problem and the method the network security aim at, network threaten, traditional network technology and the network security module.
本文首先讨论了网络安全问题及其对策，包括网络安全的目的，网络现存的威胁，传统的网络安全技术和网络安全模型。
The paper introduce the new active network security technology: Honeypot.
本文介绍一个新的主动型的网络安全防御技术：蜜罐。
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