January 26, 2018

How We Built an Intrusion Detection System on AWS using Open Source Tools

It’s roughly a year now that we built an intrusion detection system on AWS cloud infrastructure that provides security intelligence across some selected instances using open source technologies.

As more instances were spun, real-time security monitoring became necessary. We wanted the capability to detect when someone attempts an SQL injection, an SSH brute force, a port scan and so on. I forgot; we didn’t even want a ping request to go unnoticed if it was possible to ping any of the instances from the public and finally, centralize security logs from multiple EC2 instances which would then be visualized with Kibana.

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