Finding an OS for Snort IDS sensors

After deciding to implement Snort and determining IDS sensor placement, you must decide what operating system (OS) to use for the network sensors. The answer is surprisingly simple.

Flame wars regarding relative OS performance, stability and security problems can and do erupt at the drop of a hat. With this in mind, the bottom line for determining what OS to use with a critical security device is "go with what you know." You will be much better at properly configuring, hardening, administering and troubleshooting an OS you already know. You will also be better able to spec hardware and performance, and presumably other people in your organization will be able to back you up when needed. If you and your organization are equa

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Having said that, Snort IDS is developed and tested on Linux and Mac OS X, and is heavily tested by the Linux and BSD communities. These platforms are always supported first, and the developers are very familiar with them. With Snort on a well-tuned Linux or BSD platform you can get acceptable performance out of older, slower or cheaper hardware than some other OSes might require.

In the end, learning new technologies is something we should all do to keep current, but devices intended to protect your network are not a good place to experiment.

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