Zentyal Alternatives

A very good alternative for Windows Server, for free

OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.

NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...

Univention Corporate Server UCS with Active Directory functions and App Center is the cost-efficient and popular successor to Microsoft's server solutions.

FreeNAS is a storage operating system strong and robust enough to meet the needs of enterprise level businesses.

Amahi is a media, home and app server software known for its easy-to-use user interface. Amahi has the best media, backup and web apps for small networks.

FreeIPA is an integrated security information management solution combining Linux (Fedora), 389...

pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more

Rockstor is a free and open source NAS (Network Attached Storage) operating system.

Secure, fast and economically scalable, Ubuntu helps you make the most of your infrastructure. Whether you want to deploy a cloud or a web farm, Ubuntu Server supports the most popular hardware and software.

A scalable, consumer-oriented, server operating system.

PetaSAN is an open source Scale-Out SAN solution offering massive scalability and performance.

NAS4Free is the easiest and quickest way to install an Open Source free NAS server. From home NAS to enterprise network storage, NAS4Free is trusted by thousands of installations every day.