This network discusses basic network security appliances. Two common security appliances are an IPS and an IDS. IPS stands for Intrusion Prevention System and IDS stands for Intrusion Detection System. An IPS is an active system that sits on the network and intercepts network traffic, analyses and stops anything deemed malicious. Whereas IDS is a passive system; it doesn’t stop network traffic. It sets alerts and sends messages if something happens, but it does not stop anything. IPS and IDS appliances can be either behavior based or signature based, network based or host based. It’s good to have a combination of things for maximum network security.
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