Question

What is the difference between a network intrusion detection system (NIDS) and a network intrusion prevention system (NIPS)?

Answer 1

Detection vs Prevention

Step-by-step explanation:

• A Network Intrusion Detection System as the name suggests it "detects" the attackers / vulnerabilities existed in the network system / infrastructure.
• A Network Intrusion Prevention Detection System as the name suggests it "prevents" the attackers from hacking the system. While a detection just detects the abnormalities where as a prevention system can prevent them.
• The detection system detects the vulnerabilities, security threats and the attackers in the system through the web traffic analyzers and security analyzers.
• The prevention system prevents the network from being compromised. It tries to regain the access if already compromised.
• Both the NIDS and NIPS have to be coordinated for the full protection of the network.