本文首先从网络安全现状入手，分析复杂网络环境下对网络安全的迫切需求，得

本文首先从网络安全现状入手，分析复杂网络环境下对网络安全的迫切需求，得出同络入侵检测在网络安全方面应用的必要性的结论，通过对入侵检测技术的分析，搭建基于 snort的校园入侵检测系统测试环境，通过模拟攻击行为，测试校园网络中针对关键节点的入侵检测，井通过在校园网络部署入侵检测系统对入侵行为进行防范，保障校园网络运行的安全。

本文首先从网络安全现状入手，分析复杂网络环境下对网络安全的迫切需求，得出同络入侵检测在网络安全方面应用的必要性的结论，通过对入侵检测技术的分析，搭建基于 snort的校园入侵检测系统测试环境，通过模拟攻击行为， 测试校园网络中针对关键节点的入侵检测，井通过在校园网络部署入侵检测系统对入侵行为进行防范，保障校园网络运行的安全。

This paper starts with the current situation of network security, analyzes the urgent demand for network security in the complex network environment, and draws the conclusion that it is necessary to apply the same network intrusion detection in the network security. Through the analysis of intrusion detection technology, we build a campus intrusion detection system test environment based on Snort, and test the access of key nodes in the campus network by simulating the attack behavior Intrusion detection, well through the deployment of intrusion detection system in the campus network to prevent intrusion, to ensure the safety of campus network operation.<br>