Univention Corporate Server is a pre-configured Linux server operating system free of charge. It's the best fit to provide Microsoft Server-like services on the cloud or on the premises, to run and operate corporate IT environments with Windows- and Linux-based clients and to extend those environments with proven enterprise software, also either on the cloud or on the premises.
Active Directory-like domain services compatible with Microsoft Active Directory; a mature and easy-to-use web-based management system for user, rights and infrastructure management; a scalable underlying concept suited for single server scenarios as well as to run and manage thousands of clients and servers for thousands of users within one single UCS domain; an app center providing single-click installation and integration of many business applications from 3rd parties and Univention; management capabilities to manage Linux- and UNIX-based clients; command line, scripting interfaces and APIs for automatization and extension ... More Info »
The complete source code of Univention Corporate Server is provided under an Open Source licence. The software is tried-and-tested and regularly updated. UCS is available free of charge as a Core Edition without functional limitations. Companies preferring guaranteed, individually adjustable support can subscribe to different UCS maintenance services.
User, group and rights administration, an integrated IP management (DNS, WINS, DHCP), file and printer services. AD Takeover allows the migration of a Microsoft AD to UCS via Samba 4. AD Connection either integrates UCS in an AD domain or allows automatic sync of the AD and UCS's LDAP. The App Center provides further UCS components and numerous Open Source products from third-parties such as ownCloud, Open-Xchange, Kopano ..., also Docker-based. UCS provides hybrid cloud management for OpenStack or Amazon EC2 and is based on Debian GNU/Linux 7.8 (Wheezy)