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入侵检测系统是一种对网络传输进行即时监视,在发现可疑传输时发出警报或者采取主动反应措施的网络安全设备。它与其他网络安全设备的不同之处便在于,IDS是一种积极主动的安全防护技术。入侵检测就是根据网络流的数据属性区分出正常流量和攻击流量。
Intrusion Detection System is a kind of network security equipment which monitors network transmission immediately, sends alarm when finding suspicious transmission or take active reaction measures. It differs from other cybersecurity devices in that IDS is a proactive security technology. Intrusion detection is based on the data attributes of the network traffic to distinguish between normal traffic and attack traffic.