Network attack effect evaluation needs to build a set of evaluation indices system.The importance of the indices varies by a certain attack. 进行网络攻击效果评估需要建立一套评估指标体系，针对具体的攻击，评估体系中指标的重要性各不相同。
Individuals to achieve a simple personal firewall, you can resist the basic conventional network attack, suitable for beginners to learn. 个人实现的一个简单的个人防火墙，可以抵抗基本常规的网络攻击，适合初学者学习。
