8 Best Free And Open Source Network Intrusion Detection Systems
LinuxLinks, Wednesday, November 13th, 2024
An intrusion detection system is a device or software application that monitors a network or systems for malicious activity or policy violations.
IDS types range in scope from single computers to large networks. The most common classifications are network intrusion detection systems (NIDS) and host-based intrusion detection systems (HIDS). A system that monitors important operating system files is an example of an HIDS, while a system that detects malicious traffic on a network is an example of an NIDS. NIDS let you monitor network traffic, looking for specific activity, and generating alerts.
NIDS can be hardware or software-based systems and, depending on the manufacturer of the system, can attach to various network mediums such as Ethernet, FDDI, and others.