ClearOS is recommended for small and medium-sized businesses, educational institutions, and non-profit organizations that need a flexible and cost-effective server solution. It is especially suited for environments that require an easy-to-manage interface, comprehensive network applications, and are looking for an alternative to more expensive proprietary server solutions.
Zentyal - Linux directory, domain, mail, gateway and infrastructure server for SMBs.
DRBL - DRBL (Diskless Remote Boot in Linux) is a free software, open source solution to managing the...
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Thinstation - Thinstation is a basic and small, yet very powerful, open source thin client operating system...
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
LTSP - The Linux Terminal Server Project adds thin-client support to Linux servers.