FreeNAS

The World’s #1 Storage OS with over 10+ Million Downloads

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Hunter's comment

FreeNAS is an operating system that can be installed on virtually any hardware platform to share data over a network. FreeNAS is the simplest way to create a centralized and easily accessible place for your data.
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An easy to use free operating system for both home and businesses, You can install it on any device virtually. You can store as much data as you need without any limits. It also has different servers for both home and business users.