Network security defense system and method

The invention discloses a network security defense system and method. The system comprises a network intrusion detection and defense unit, a network intrusion detection and defense unit, a network login verification unit, a network flow monitoring unit, a controller, a flow management server and a network state monitoring server, wherein the controller is in data connection with the network intrusion detection and defense unit, the network login verification unit, the network flow monitoring unit, the flow management server and the network state monitoring server. The defense system adopted bythe invention can realize real-time monitoring and multi-directional defense of network viruses, network flow, network operation states and user identities, and the defense effect is improved. 本发明公开了一种网络安全防御系统及方法，本方案包括：网络入侵检测及防御单元，网络登录验证单元，网络流量监测单元，控制器，流量管理服务器以及网络状态监控服务器，所述控制器分别与网络入侵检测及防御单元，网络登录验证单元，网络流量监测单元，流量管理服务器以及网络状态监控服务器数据连接；本发明采用的防御系统能够实现对网络病毒、网络流量、网络运行状态以及使用者身份的实时监控，多方位防御，提高了防御效果。