
ClearOS
pfSense
Zentyal
NethServer
Untangle
OPNsense
IPFire
Univention Corporate Server
SuperCoder
ClearOS
SuperCoderClearOS 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.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Zentyal - Linux directory, domain, mail, gateway and infrastructure server for SMBs.
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
Untangle - Untangle is a platform for deploying network based applications.
OPNsense - OPNsenseยฎ you next open source firewall. Free Download. High-end Security Made Easyโข. Offers Intrusion Prevention, Captive Portal, Traffic Shaping and more.
IPFire - IPFire is a server distribution with intended to use as a firewall.