What is Intrusion Detection System (IDS)?

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An intrusion detection system is a software or device that monitors traffic for detecting malicious content and vulnerabilities.

The IDS can be of two types:

1) HIDS (Host-based Intrusion detection system)

2) NIDS(Network Intrusion detection system)

Network Intrusion detection system

Network IDS is used to monitor and examine all the traffic from all devices on the network. The NIDS can monitor incoming and outgoing traffic. Example: Snort (It is a free packet sniffing tool that monitors the network traffic and detects the malicious packet coming to a system).

Network IDS

Host Intrusion detection system

Host IDS is a system that runs on an individual host, and it protects valuable data against viruses and other malware on the internet. Example: OSSEC (It is a free tool that performs log analysis, rootkit detection, etcetera)

Host IDS

Suggestion: How to protect yourself from hackers or attackers click here

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Published By: Nishant Tiwari

Hi people, I am Nishant, highly interested in ethical hacking, and cryptography since the age of 12. Though I am still learning at present, I know a few programming languages such as C, C++, and python. I am currently writing my daily blogs on this website; Also, if you have some queries, I can try to help you at my level best. For that, all you have got to do is, type a message in the comment section and I will always reach out to you no matter what. I can assure you one thing that you will still get a satisfying answer to your questions, from my side.

2 thoughts on “What is Intrusion Detection System (IDS)?

  1. [email protected] says:

    Plzz try explaining about firewalls and what about firewalking😀 though its a good topic i would like to get a small discussion on that!


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