SME Server

SME Server is a leading distribution for small and medium enterprises.

16 Alternatives To SME Server

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Amahi Home Server

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.

CentOS

CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise…
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ClearOS

A very good alternative for Windows Server, for free

FreeNAS

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

IPFire

IPFire is a server distribution with intended to use as a firewall. IPFire is a hardened, versatile, state-of-the-art Open Source firewall based on Linux. Its ease of use, high performance in any scenario and extensibility make it usable for everyone.
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MDaemon Messaging Server

Low cost, easy to use Email Server software for virtual, on-premise, or hosted deployments for…

NethServer

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

OpenMediaVault

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

Rockstor

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

Superb Mini Server

A full featured linux mini server with a small footprint

Ubuntu Server

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.
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Univention Corporate Server

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

Untangle

Untangle is a platform for deploying network based applications.
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Webmin

Webmin, Usermin, Virtualmin, Cloudmin, Linux, System Administration
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Windows Server 2019

Increase security, evolve your datacenter, and innovate faster with Microsoft Windows Server, the cloud-ready operating system.

Zentyal

Linux directory, domain, mail, gateway and infrastructure server for SMBs.