网络监听技术的应用本是为了管理网络,监视网络的状态、数据流动情况及其传输的信息的。然而,由于其可以有效地截获网上的数据,网络监听也就自然而然的成了黑客最长使用的方法。网络监听的检测与防范技术也就成为了人们关注的话题。本文首先研究了网络监听技术的基本概念及基本理论,然后着重于对网络监听的检测及防范技术的研究。 Network monitoring technology is used to manage the network, monitor the status of the network, data flow and the transmission of information. However, because of its ability to intercept data online, network snooping becomes the longest hacking method. Detection and prevention of network monitoring technology has become a topic of concern. This paper first studies the basic concepts and basic theory of network monitoring technology, and then focuses on the detection of network monitoring and prevention technology.