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Univention Corporate Server Comments

UCS 4.1-4 Released: More stability in large environments + Easier Docker config + Now in French

Positive Comment by Abatielos
about Univention Corporate Server and Samba, Docker Nov 2016

On November 8, Univention Corporate Server was released bringing many software and kernel updates to enhance security, stability and drivers for better hardware support.

Some of the technical improvements are:
- Installation wizard and management system now in French
- Update to Samba 4.5.1
- Update to the latest long-term Linux kernel 4.1 version
- Optimizations in the ares of DRS replication, compatibility of UCS with Active Directory, file services, printer handling, and OpenLDAP configuration
- Faster and better synchronization of objects between OpenLDAP and the Samba 4 directory in large environments
- Active Directory Connector now supports the synchronization of groups with more than 1,500 members
- Easier configuration and maintenance of Docker apps in the Univention App Center
- Important security updates, among other things, for Bind9, MySQL, OpenSSL, and the Linux kernel

All innovations and updates can be found in the release notes.


Univention Corporate Server 4.1-3 released: Better usability and Docker-based apps

Positive Comment by Abatielos
about Univention Corporate Server and Docker, Google Chrome Aug 2016

UCS 4.1-3 was released on August 9, 2016. This release includes various usability improvements, important security updates and all errata updates that have been published in the last three months.
Some of the new features at a glance:
- Various important security updates, among others for libvirt, OpenSSL, QEMU and Samba
- Elimination of potential security risks in the LDAP ACLs
- Stabilization of the replication mechanisms, for example as to the renaming of LDAP objects with several RDNs (Relative Distinguished Names)
- The login into the UMC (Univention Management Console) now also works with Chrome 51.
- Various improvements of the App Center’s Docker integration such as the running of join scripts in Docker containers and the registration on the UCS overview page.
- Apps can now be provided with an individual branding and a fast demonstration mode and can also be easier “dockerized”.
- The Docker daemon start options can now easily be configured via UCR.
- The default Docker image for apps has been modified so that the cron daemon starts per default.
- User objects in the management system can now be extended by further options via the use of extended attributes.
- Various improvements of the translation process make it easier for third-parties to offer UCS in another language.
- Various detail improvements of the local certification tools such as further UCR variables for an easier configuration and the maintenance of server certificates when server objects are moved within the directory service.
- A snapshot via UVMM (Univention Virtual Machine Manager) is now also possible with virtual machines of more than 4 GB RAM.
- Increase of the default RPC timeouts in the DRS replication to allow the join of another Samba-based Active Directory domain controller with more than 100,000 directory objects.
- Configuration settings for the database management system MySQL can now be defined via UCR variables.

Further information in the release notes.

[Edited by Abatielos, August 10]


UCS 4.1-2 is released: Higher usability, security and Active Directory interoperability

Positive Comment by Abatielos
about Univention Corporate Server May 2016

UCS 4.1-2 comes with numerous improvements in usability, security + Active Directory interoperability

Some of the highlights are:

  • Security updates for Samba, Apache, OpenSSL and the GNU C-library
  • Update to Samba 4.3.7 with various security updates, closure of the Badlock bug, among other things.
  • Access of the UCS Active Directory Connector to the standard interfaces of the Active Directory for the synchronization of passwords
  • Improvements of the Bootloader configuration of GRUB for the serial console and hence the easier use of UCS by visually impaired administrators
  • Better support for the use of the UMC via mobile devices
  • Adaptations of the App Center such as information on the licensing conditions of apps
  • New sorting function and display of more details in the DNS module
  • Performance improvements of the print quota

Further information in the Univention blog!

[Edited by Abatielos, May 11]


Roadmap 2016 for UCS 4.1: Docker-based apps in Univention App Center and integration of Microsoft Office 365 and Google Apps for Work

Positive Comment by Abatielos
about Univention Corporate Server and G Suite, Microsoft Office 365, Microsoft Exchange Server Mar 2016

Univention has published the roadmap for UCS 4.1 in 2016. The fourth generation of UCS now performs three functions at the same time: Serving as a runtime environment for apps, as an app management system, and as a solution to simply set up servers in on-premise and cloud environments.

Thanks to the integration of Docker-based apps in the App Center such as the server automation software Jenkins or the business solution TecArt, Univention is currently working on the integration of proprietary software, for example Google Apps for Work, Office 365 and Microsoft Exchange 2013.

More at:


Univention Corporate Server 4.1-1 ready to download with Linux/Samba update and AD improvements

Positive Comment by Abatielos
about Univention Corporate Server Feb 2016

Last night, Univention released the first point release of UCS 4.1. In addition to all errata updates issued for UCS 4.1-0, UCS 4.1-1 includes a significant amount of improvements in the areas of usability, performance and security as well as enhancements and bug fixes.

Here is an overview of the major changes:

  • Update of Linux kernel to 4.1.16
  • Update to Samba 4.3.3 improves compatibility to Active Directory as well as the DRS replication
  • Performance increase of the Directory service replication now leads to much faster domain joins with thousands of users
  • Numerous security updates, among others, for MySQL, OpenJDK or the Bootloader Grub
  • UCS Virtual Machine Manager (UVMM) now supports the migration of stopped virtual machines and
  • UVMM can now also manage Virtual Private Clouds (VPC) in Amazon Web Services (AWS)

Further details in the Univention blog.

Download UCS 4.1-1 at:


Release of UCS 4.1 with Docker-based apps, SSO and 2F authentication

Positive Comment by Abatielos
about Univention Corporate Server and Docker Nov 2015

Univention published UCS 4.1 with important new features.

Most important innovations are:

  • Support of Docker-based apps in the Univention App Center
  • Single sign-on in the UCS management system via SAML technology
  • Even safer login process via optional two-factor authentication
  • User self-service for the password reset
  • Usability improvements and more transparent interface for the App Center
  • Technical basis: Linux longterm kernel 4.1.12, OpenLDAP version 2.4.42 and Samba 4.3.1

The new UCS version 4.1 is available online to download for free as VM or ISO image.

There is also an online demo available.

More about the new features in the Univention blog articles about Docker, Single Sign-On Mechanism and Two-Factor Authentication.

[Edited by Abatielos, November 18]

[Edited by Abatielos, November 18]

[Edited by Abatielos, November 18]

[Edited by Abatielos, November 18]


Release of UCS 4.0-3 with ready to use apps for various virtualization environments

Positive Comment by Abatielos
about Univention Corporate Server and Samba, KVM (Kernel-based Virtual Machine), OpenLDAP Aug 2015

The third point release 4.0-3 of Univention Corporate Server was released today. It provides numerous bugfixes and (security) updates as well as improvements in design and usability of the UCS management system.

New is the automatic creation of Univention Apps for all major virtualization environments (VMware, VMware ESX, VirtualBox, and KVM) that are ready for use and instantly available via the Univention App Center. Univention Apps are complete applications consisting of the UCS platform, its identity management system, and the app itself such as ownCloud, Open-Xchange, Zarafa, or Bareos. They come with an automatic patch, update, and life cycle management and can be easily integrated into existing (Active Directory) environments.

Further highlights of UCS 4.0-3 are:

  • Increase in performance of the UCS mail component thanks to the integration of the mail server Dovecot as UCS' default IMAP/POP3 server
  • Faster navigation within the management interface via the use of the web browser's back and forth button
  • Provision of additional LDAP filters that limit the efficacy of LDAP-based guidelines to objects matching the filters
  • Update to the latest Samba software version 4.2.3 with improvements in the DRS replication and as to the handling of printer drivers
  • Latest, stable „longterm“ Linux kernel 3.16, which includes various security updates as well as additional and updated drivers for improved hardware support.

Further details in the Univention blog

[Edited by Abatielos, August 11]


New: Univention Apps - Enterprise Applications instantly ready for use via the Univention App Center

Positive Comment by Abatielos
about Univention Corporate Server Jul 2015

Univention has created a cool combination of an existing app from the Univention App Center, the Univention App Platform, which is based on Univention Corporate Server, and the UCS management system. These ready apps can be very easily started as virtual machines or installed locally.

Good thing is they integrate seamlessly with each other and into existing (Active Directory) environments, and come with integrated update mechanisms. The range of these Univention Apps is wide, from groupware and document management up to filesync/-sharing and backup solutions.

Univention Apps are for end users who want ready-to-use business applications, on the cloud or on-premises, combined with an easy identity management and the possibility to integrate them into the existing IT environment.

Univention also invites cloud service providers to integrate the Univention App Platform into their provisioning system to offer their customers an individual selection or the entire range of available Univention Apps.

Also app vendors are welcome to certify their apps for the Univention App Platform to take advantage of the steadily growing network of cloud service providers that are offering Univention Apps.

More on this on Univention's website.


Update for the Univention Corporate Server's App Center - Numerous New Apps from ERP to Software Distribution for Windows Clients

Positive Comment by Abatielos
about Univention Corporate Server and OX Open-Xchange, Odoo Jul 2015

The Univention App Center, which is part of Univention Corporate Server (UCS), is providing more and more business solutions that can be centrally managed via UCS' management system.

The following apps have been added recently and more are in the pipeline:

  • opsi - software distribution solution for Windows clients

  • MobyDick - VoIP telephone system solution

  • privacyIDEA4UCS - Two-factor authentication tool with extension for PAM- and Radius-based apps

  • Fortnox for OX App Suite - a business software that is integrated in the groupware OX App Suite

  • Odoo - ERP system for all kinds of business fields such as finance, marketing, HR etc.

These and further apps can all be found and easily tested via the Univention App Center.


Release of Univention Corporate Server 4.0-2

Positive Comment by Abatielos
about Univention Corporate Server May 2015

The second patchlevel release of UCS 4 has been published today including numerous user feedback-based improvements in the areas of usability and security plus a wide range of bug fixes.

Completely new is the integration of the Linux container technology Docker to run Docker containers on UCS which is the first step to enabling the App Center to handle Docker images. Univention will thus strengthening the App Center as the central and secure platform for the operation of different applications.

Further Highlights:
- UCS now for free without limitations for everyone incl. companies with the UCS Core Edition
- Automatic configuration of apps from the App Center when performing remote installations
- New tutorial for ISVs about how to package for UCS as well as how to include apps in the UCS management system and make them available via the App Center
- Usability improvement, e.g., as to the login-process, when importing the license and within the configuration assistant
- Improvements in the Samba 4 and Active Directory compatibility
- Automatic network-based installation of UCS
- Improvements of the UCS mail server
- Improvements of security settings in the Apache web server to disable old encryption settings.

Further information in the Univention blog

[Edited by Abatielos, May 12]

[Edited by Abatielos, May 13]


Univention Corporate Server Now For Free - Why This Shift?

Positive Comment by Abatielos
about Univention Corporate Server Apr 2015

If you interested in the reasons why Univention changed its licensing models and made Univention Corporate Server now freely available to private and enterprise users, go to the Univention Blog.

Univention's CEO Peter Ganten explains the reasons behind this new strategy and his vision to make IT easily combinable and available to anyone.

[Edited by Abatielos, April 30]


Univention Corporate Server Now Freely Available - Also for Corporate Use

Positive Comment by Abatielos
about Univention Corporate Server Apr 2015

Univention published a free version today, which is also available for corporate use - the UCS Core Edition. It replaces the previous "free for personal use“ license, which was for private use only.

Good news for companies who don't want to buy maintenance services but like to use UCS as a central management system for their IT infrastructure and/or use it freely to manage other apps via the integrated app center.

More information on this new Core Edition including download possibilities in Univention's blog


New patch level release - Univention Corporate Server 4.0-1

Positive Comment by Abatielos
about Univention Corporate Server Feb 2015

The first patchlevel release of UCS 4 has been released pooling more than 80 errata updates since UCS' last major release in November 2014


  • Update of the UCS basis through the integration of the Debian "Wheezy" 7.8 point update
  • Simplification of the UCS system setup
  • Improvements of the integrated tool "Active Directory Connection": This tool is perfect for everyone who wants to extend an existing Windows server environment with additional Enterprise applications via the Univention App Center. For example, groupware solutions such as OX App Suite or Zarafa which are installed via the Univention App Center can thus be managed via Microsoft Active Directory including all existing user identities.
  • Simplification of UCS cloud setups: Cloud setup information from cloud service providers is now directly transmitted to UCS. Thus, cloud service providers can provide their customers with a pre-configured and ready-to start UCS-based cloud installation.

Further information in the Univention forum


Case studies for Univention Corporate Server and UCS Virtual Machine Manager

Positive Comment by Abatielos
about Univention Corporate Server and UCS Virtual Machine Manager Jan 2015

For those who are interested in practical application examples for Univention Corporate Server (UCS) and UCS Virtual Machine Manager (UVMM) can go to Univention's reference site and take a look at the application spectrum for UCS and UVMM at: UCS/UVMM case studies