Snort is an open-source, free and lightweight network intrusion detection system (NIDS) software for Linux and Windows to detect emerging threats.

OSSEC is a multiplatform, open source and free Host Intrusion Detection System (HIDS). You can tailor OSSEC for your security needs through its extensive configuration options, adding custom alert rules …

Snort's open-source network-based intrusion detection/prevention system (IDS/IPS) has the ability to perform real-time traffic analysis and packet logging on Internet Protocol (IP) networks.

Nov 13, 2024 · There are hundreds of in-depth reviews, open source alternatives to proprietary software from large corporations like Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. …

Apr 11, 2019 · In this article, we’ll explore five significant open-source network-based intrusion detection systems to help you enhance threat visibility across your networks.

Apr 1, 2025 · This beginner’s guide will walk you through some of the most popular open-source IDS/IPS tools, how they work, and how you can...

5 days ago · Security Onion is a free and open platform for threat hunting, enterprise security monitoring, and log management. It includes our own interfaces for alerting, dashboards, hunting, …

Apr 28, 2025 · Security Onion is a free and open platform for threat hunting, enterprise security monitoring, and log management. It includes our own interfaces for alerting, dashboards, hunting, …

Snort is an open-source, real-time network intrusion prevention system software. Download and install the software to protect your network from emerging threats.

That said, there are a decent selection of free, open-source NIDS solutions available based on commodity hardware that offer comparable levels of security and protection as commercial NIDS …