Newsroom & Blog
Guardian in Transition: Why We Are Switching to Cerbos
Over the past few years, we have built Guardian step by step and reported on the concept and initial results in our blog posts from 2023 and 2024. Guardian is the component in Nubus that answers a central question: Is this person allowed to perform this action? Today, we would like to share openly what [...]
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UCS 5.2-7 Released
The latest patch-level release of Univention Corporate Server bundles all new features and improvements from the past months onto new installation media including a new authorization backend for Nubus Guardian, more control over password hash security, deeper Keycloak observability, and simplified Microsoft 365 classroom management for schools — alongside continued groundwork for the upcoming UCS [...]
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Who Does the Cloud Trust When You Log In?
Around 5,000 Dropbox accounts were accessed using Lenovo IDs that had apparently not been properly verified. The incident highlights an aspect of cloud security that is often overlooked in public debate. This is not about a conventional security vulnerability, but about whose judgement a service relies on when it accepts a login. Dropbox allows users [...]
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See Everything: Visualizing Nubus Metrics with Prometheus and Grafana
The metrics endpoint in UCS 5.2 delivers the raw data, Prometheus stores it, Grafana turns it into a graph. Give it a little time and you stop reading numbers off a screen—you start seeing how your Nubus instance is changing. How many user accounts right now? How close are we to the license limit? [...]
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Nubus for Kubernetes 1.22: Secure Password Hashes, More Metrics & Logs that are Easier to Analyze
This release delivers tangible improvements for operations and security. Nubus for Kubernetes 1.22 makes the stored password hashes configurable, enables the metrics of the Keycloak identity provider, and switches log output to structured logging. This gives operators a better view of their environment while raising the level of security at the same time. Password Hashes: [...]
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AI Governance Is Key to Digital Sovereignty: How Today’s Decisions Will Shape Tomorrow’s Digital Independence
Last week, I spoke at the Bremen Fast Forward AI Festival about why digital sovereignty is being decided anew today and what role open-source AI plays in this. Here, I have summarized my key points for future reference. Digital Sovereignty Means the Ability to Control, Shape, and Switch In 2020, the IT Planning Council described [...]
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NOVA Is Gaining Momentum – How We Are Bringing the Sovereign Workplace into Municipal Practice
A look behind the scenes at the KRZN InnoLab: Why the combination of openDesk standards, strong partnerships, and local line-of-business application integration is the key to digital sovereignty for our municipalities. The digital sovereignty of public administration is not a theoretical luxury problem, but a tangible strategic necessity. For the Municipal Data Processing Centre Niederrhein [...]
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From Nubus to an Automated Linux Desktop: A Case Study from pro mente tirol
A social services organization in Tyrol, 24 locations, and the conviction that our data belongs in our own network: Here's how we put that principle into practice with Nubus and Ubuntu. Since 2014, I have been heading the IT department at pro mente tirol, a non-profit organization providing social psychiatric services for people with mental [...]
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Introducing the Univention Integration Catalog: One Home for Every Integration
If you know Univention, you know the App Center. For years, it has been the go-to place for selecting and installing applications on Nubus for virtual machines (UCS). It has served its purpose well and that is exactly the point: our integration ecosystem has long outgrown installable apps. Identity connectors, groupware integrations, ISV applications via [...]
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Univention Introduces the Integration Catalog for its Identity & Access Management Nubus
Bremen, July 29, 2026 – Univention GmbH, provider of open source solutions for the efficient management of digital identities and the integration of applications, has released the Integration Catalog, a new overview of all integrations for its Identity & Access Management Nubus. It brings together App Center applications, identity and groupware connectors, ID Broker connections, [...]
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