What is IPS & IDS

Question

What is IPS & IDS

Accepted Answer

IPS stands for Intrusion Prevention System and IDS stands for Intrusion Detection System.

IPS actively blocks suspicious traffic while IDS only detects and alerts
IPS is inline and can prevent attacks in real-time, IDS is passive and only monitors
Examples: Cisco Firepower for IPS, Snort for IDS

Accepted Answer

Intrusion Detection System (IDS):
IDS is a passive security tool that monitors network or system activities for signs of unauthorized access, malicious activities, or policy violations.
It analyzes network traffic, system logs, and other data sources to detect suspicious patterns or anomalies.
When an IDS detects a potential security breach or attack, it generates alerts or notifications to security personnel or administrators.
IDS can be deployed at various points within a network, such as at network perimeter, internal network segments, or on critical systems.
Types of IDS include:
Network-based IDS (NIDS): Monitors network traffic and analyzes packets to detect suspicious activities.
Host-based IDS (HIDS): Monitors activities on individual hosts or endpoints, such as servers or workstations, to detect unauthorized access or malicious activities.

Intrusion Prevention System (IPS):
IPS is an active security tool that not only detects but also takes immediate action to block or prevent unauthorized access, exploits, or attacks.
It operates inline with network traffic, actively inspecting packets in real-time and applying predefined security policies to block malicious or suspicious activities.
IPS can automatically drop or block malicious traffic, reset connections, or alert security personnel about detected threats.
IPS can be deployed at various network touchpoints, including network perimeter, internal network segments, or in-line with critical systems.
Types of IPS include:
Network-based IPS (NIPS): Monitors network traffic in real-time and actively blocks or prevents malicious activities.
Host-based IPS (HIPS): Installed on individual hosts or endpoints to monitor and prevent unauthorized activities on the host itself.

What is IPS & IDS

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