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ClearOS is an open-source Linux operating system built for small and medium-sized businesses, educational institutions, and non-profits. The operating system offers a user-friendly web-based interface with applications that handle networking, gateway services (firewall, intrusion detection/prevention), mail server functionality, groupware server functions and cloud backup systems. ClearOS aims to simplify the administration of network resources by integrating many of the necessary tools into one platform while also providing good performance on commodity hardware.