ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.



There are many alternatives to Zentyal for Linux if you are looking for a replacement. The best Linux alternative is ClearOS, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Zentyal and 15 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Zentyal are Ubuntu Server, NethServer, Turnkey Linux and linuxmuster.net.
ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.



The leading platform for scale-out computing, Ubuntu Server helps you make the most of your infrastructure. Whether you want to deploy an OpenStack cloud, a Hadoop cluster or a 50,000-node render farm, Ubuntu Server delivers the best value scale-out performance available.

NethServer is an application manager for Linux servers. The product's main feature is the ability to easily and quickly install and manage instances of applications over multiple nodes. It allows users to deploy services, like [Nextcloud](https://alternativeto.




TurnKey Linux provides a super simple way to deploy open source web apps/server side applications in the cloud, VM or bare metal.

linuxmuster.net is a comprehensive complete solution for the operation of school IT infrastructure. It is developed by teachers and service providers for the special requirements of schools. When developing our solution, we try to keep some ...




SME Server is a leading distribution for small and medium enterprises. It stands apart from the competition by shipping with most common functionality preconfigured and features a number of popular additional enhancements in the form of downloadable contributions.

It's an active directory replacement built on CentOS + Samaba4. Includes support for Directory, DNS, DCHP, and NTP type services.




OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol.

The Amahi Home Server is designed for home and small office environments where the technical support staff do not want the job!



Linux based gateway for SMB with accent on security. With easy to use web-based configuration tool. With lots of additional features like mail server, VPN server, traffic shaping, DPI, traffic antivirus and etc.




Get a web based email/messaging, HTTP proxy, files server, VPN administration interface Using Postfix, Squid, Samba And extend them with Security quickly and easily How to create a Mail/Proxy/File



EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.




They both provide the same functions...I use them both