This time I am exploring the use of a Raspberry Pi as an Intrusion Detection System (IDS) and/or security monitoring/tracking system for your LAN.

Travis F Smith who wrote here, http://www.tripwire.com/state-of-security/security-data-protection/sweet-security-part-2-creating-a-defensible-raspberry-pi/ says in part 1 of his postings on his blog that the Raspberry Pi 2 B is http://www.tripwire.com/state-of-security/security-data-protection/cyber-security/sweet-security-deploying-a-defensive-raspberry-pi/  from the article:

As a proof-of-concept, I built a Raspberry 2 Model B running Bro, Critica-Stack, Losgstash, Elastic Search and Kibana and placed it in-line on my own home network between the router and the rest of my internal network. This setup has been running for more than a month without any issues, using less than half of the available CPU and memory resources on the Raspberry Pi.

My older Raspberry Pi 1 may work just as well. More to come…

Source code for Travis’s project:  https://github.com/TravisFSmith/SweetSecurity

The “Bro” IDS open source project:  https://www.bro.org/