Fri. Apr 3rd, 2020

Univention Corporate Server 4.4-4 releases

2 min read

Univention Corporate Server (UCS) is the free to use, innovative platform to efficiently operate and manage server applications and complete IT infrastructures. UCS is optimally suited for the management of distributed, heterogeneous and virtualized IT environments, no matter whether you deploy Microsoft Windows, Mac OS X or Linux systems. The integrated identity and infrastructure management system allows the secure administration of applications and provision of infrastructure services as well as the central, cross-location and cross-platform management of server and desktop systems via an intuitive web interface. Thanks to open interfaces and easy-to-use connectors, UCS can be effortlessly integrated in existing environments. Via the integrated App Center, it offers a large number of enterprise applications, which can be operated with a few clicks. Extensive Active Directory functions allow both the integration as well as the migration from Microsoft.


  • Identity + Infrastructure management
  • App Center
  • Login services + authentication
  • Active Directory services via Samba 4
  • Virtualization management
  • IP and network administration
  • Printer management
  • File services
  • System management
  • Monitoring
  • Mail and groupware
  • APIs

Univention Corporate Server 4.4-4 releases.


It provides several feature improvements and extensions, new properties as well as various improvements and bugfixes. Here is an overview of the most important changes:

  • UCS can now log when the last authentication on the LDAP server took place, for example when users logged on using the SAML identity provider. A use case could be the detection of accounts that are no longer in use.
  • The AD Connector can synchronize Kerberos hashes from AD and thus work without NTLM hashes.
  • The AD Connector now officially supports Windows Server 2019. The synchronization of changes to large groups has been accelerated by transferring only changes (new / removed members) and not always the complete list of current group members. In the context of group synchronization a memory leak has also been fixed.
  • User guidance has been improved in the App Center: The number of steps required for installing apps is now displayed, the different message types appear in a clearer, uniform look and feel and have been partially combined onto a single page.
  • The SAML login to the portal and apps has more configuration options, including the various links (“How to log in”“Login without SSO”) can be customized. A new feature is a configurable link to the “Forgot password” function of the Self Service.
  • Various security updates have been integrated into UCS 4.4-4, e.g. Samba, the Linux kernel and PHP. A complete list of security and package updates is available in Chapter 6.