Some intrusion detection systems even take action against threats, blocking a suspicious user or source IP address.
These variants are called intrusionpreventionsystems (IPS).
Here’s a look at five excellent free IDS technologies to consider implementing for your web connection.
Linux Screenshots
They compare your internet data to known threats and flag suspicious activity.
Zeek works with Unix, Linux, Free BSD, and Mac.
Suricata
Suricatais an open-source package that’s been called “Snort on steroids.”
It delivers real-time intrusion detection, intrusion prevention, and connection monitoring.
Suricata uses rules, signature language, and more to detect complex threats.
It’s available for Linux, macOS, Windows, and other platforms.
The software is free, and there are several fee-based public training events scheduled each year for developer training.
Prelude OSS is suitable for limited-size IT infrastructures, research organizations, and training.
It’s not intended for large-size or critical networks.
Prelude OSS performance is limited but serves as an introduction to the commercial version.
It runs on Linux distributions like Ubuntu and Fedora.
It’s also an advanced rootkit detector, with many useful tools to detect and remove already installed malware.
It’s well-suited for home use, although its instructional material is a bit complicated.
Host intrusion detection systems run on individual hosts or devices on the internet.
