How Does One Stop Intrusions?
There are several freeware/shareware Intrusion Detection Systems as well as
commercial intrusion detection systems.
Open Source Intrusion Detection Systems
Below are a few of the open source intrusion detection systems:
- AIDE - Self-described as "AIDE (Advanced
Intrusion Detection Environment) is a free replacement for Tripwire. It does the
same things as the semi-free Tripwire and more. There are other free
replacements available so why build a new one? All the other replacements do
not achieve the level of Tripwire. And I wanted a program that would exceed the
limitations of Tripwire."
- File System Saint - Self-described as, "File
System Saint is a lightweight host-based intrusion detection system with primary
focus on speed and ease of use."
- Snort - Self-described as "Snort® is an open source network
intrusion prevention and detection system utilizing a rule-driven language, which
combines the benefits of signature, protocol and anomaly based inspection
methods. With millions of downloads to date, Snort is the most widely deployed
intrusion detection and prevention technology worldwide and has become the de
facto standard for the industry."
Commercial Intrusion Detection Systems
If you are looking for Commercial Intrusion Detection Systems, here are a few of these as well:
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