Key Factor of internet : IDS & IPS2 min read


IDS stands for Intrusion Detection System. It may be the device or any software to detect the intrusion system. IDS are about to monitor the intrusion point for hackers. It can either be the Network based or firewall based as well as Host based IDS.

And thus they are also called as NIDS. An intrusion detection system (IDS) is a gadget or programming application that screens a system or systems for malignant action or approach infringement.

Any vindictive movement or infringement is regularly revealed either to an overseer or gathered midway utilizing a security information and event management (SIEM) framework.

IPS stands for intrusion prevention system. But IPS are never been network based and they are also Host Based IPS.

An intrusion prevention system (IPS) is a system that monitors a network for malicious activities such as security threats or policy violations.

The main function of an IPS is to identify suspicious activity, and then log information, attempt to block the activity, and then finally to report it.

The IPS has a number of detection methods for finding exploits, but signature-based detection and statistical anomaly-based detection are the two dominant mechanisms.

Signature-based detection is based on a dictionary of uniquely identifiable patterns (or signatures) in the code of each exploit. As an exploit is discovered, its signature is recorded and stored in a continuously growing dictionary of signatures. Signature detection for IPS breaks down into two types:

  1. Exploit-facing signatures identify individual exploits by triggering on the unique patterns of a particular exploit attempt. The IPS can identify specific exploits by finding a match with an exploit-facing signature in the traffic stream
  2. Vulnerability-facing signatures are broader signatures that target the underlying vulnerability in the system that is being targeted. These signatures allow networks to be protected from variants of an exploit that may not have been directly observed in the wild, but also raise the risk of false positives.

Key Terms To Understanding Intrusion Detection & Prevention

IDS Short for intrusion detection system.
IPS Short for intrusion prevention system.

Intrusion System

When a malicious attack is launched against a system, the attack typically leaves evidence of the intrusion in the system’s logs. Each intrusion leaves a kind of footprint behind

False Positive

The condition in which spam-filtering software will incorrectly identify a legitimate, solicited or expected e-mail as a spam transmission.

Difference between IDS & IPS


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