An intrusion-prevention system (IPS) is an inline security device that performs deep-packet inspection to identify and block malicious traffic. IPSs are considered an improvement over intrusion-detection systems (IDS), which are passive devices that simply identify an attack but take no action to block it.
IPSs are designed to respond in real time to attacks by dropping packets deemed malicious. IPSs are designed to block application-layer attacks, all the way up to... Continued