Hardware requirements
The OSSIM hardware requirements will basically depend on the number of events per second and the throughput of the network that you want to secure.
As a minimum requirement is always advisable to have at least 2GB of ram. You may have to increase the available RAM memory based on the network throughput, the number of events that the OSSIM server is processing and the amount of data that needs to be stored in the database. In order to achieve maximum performance, it is essential to use only those applications and components that will be useful to you in each case.
In terms of performance there is a huge difference between 32 bit and 64 bit processors, so you should always try to choose 64-Bits architecture when buying new hardware. Most components of OSSIM support multithreading, so those using 64-Bits processors will also obtain a great improvement in performance.
When thinking about network cards, you should try to choose those supported by the
e1000 driver. The Open Source development model of this driver ensures good compatibility of these cards with Debian GNU/Linux.
The slowest network cards in your OSSIM boxes should be used to collect events from other devices or as the management interface.
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