There is only limited power to the single intrusion detection, so IDS based on manifold detection methods is suggested for enhancing the power of the IDS.

• 任何一种单一的检测方法的检测能力都是有限的，为此最后提出一种基于多种检测方法的入侵检测系统，使检测与分析相分离，多种检测方法可以相互结合，提高入侵检测的能力。