Research on the Application of Software Security Quantitative Analysis and Defense-in-Depth Security Model;

Thus, network defense-in-depth is imperative.

Based on the analysis of the security status,proposes using the security technology of different layer to build a defense-in-depth architec-ture for campus network.

The traditional IPS is analyzed and its advantage and insufficiency are poiated, then data fusion algorithm of multi-sensors is combined, and a "detection and defense - detection and response" model based on defense-in-depth theory and the intrusion tolerance is proposed.

Then a defense in depth network security model is proposed and the data mining technologies is applied to analyze the alerts collected from intrusion pre-vention system.

Exploration of Layer Defence of Anti-ship Missile;