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About the Community Knowledge Base
These articles are provided by the Univention team for the community.
They are offered by Univention and the community with the intention to share experiences and useful additional information to make the work with Univ…
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1159
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September 18, 2018
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Problem: Ad-Connector reject for windows clients
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1
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8
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January 15, 2026
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Problem: Display error for group memberships
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1
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2
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January 15, 2026
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Problem: Sysvol-Replikation is not working anymore
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1
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8
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January 15, 2026
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Problem: OTP/2FA should work with adjusted 2FA and enforced 2FA
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1
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8
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January 15, 2026
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QA: UCS 5: Portal and Management Interfaces
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1
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20
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January 13, 2026
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Problem: Computers Do Not Keep Their Assigned IP Address
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1
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16
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January 14, 2026
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QA: What Is the Best DHCP Setup for Notebooks with Both LAN and WLAN Interfaces?
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1
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15
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January 14, 2026
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Problem: Default structured-logging with UCS 5.2-4
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1
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25
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January 12, 2026
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Squid Proxy Is Very Slow After User Login (NTLM / Worker Bottleneck)
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1
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12
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January 12, 2026
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Problem: Apache2 Returns “Not Found” for Login Page After Certificate Renewal
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1
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13
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January 9, 2026
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Q&A: Is it enough to run samba4 joinscripts on a school server, to get all samba4 objects?
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1
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7
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January 9, 2026
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Problem: DHCP Server Does Not Start on a ucs@school Replica Server - objectClass=dhcpServer
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0
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767
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January 22, 2020
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Q&A: Is Microsoft LAPS Compatible with UCS?
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2
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14
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January 8, 2026
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Problem: /boot Partition Runs Out of Space Due to Old Kernels
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2
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28
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January 7, 2026
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Q&A: Which ucr variable for secure ad-connector connection via port 636
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1
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8
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January 5, 2026
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Problem: SYSVOL Synchronization Fails Between Primary and Backup DC
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1
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17
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January 2, 2026
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How-to: Best Practices for Upgrading to UCS 5.2
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1
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47
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January 2, 2026
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Problem: DNS queries from UCS systems in different subnets are refused - allow-query-cache did not match
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1
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22
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December 30, 2025
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Problem: FreeRADIUS rewrites machine hostnames to lowercase and breaks LDAP lookups
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1
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26
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December 20, 2025
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Q&A: How can I get the schema from primary
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1
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15
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December 17, 2025
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Problem: Queries in a trust relationship between UCS Samba and Microsoft Active Directory take very long
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1
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11
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December 16, 2025
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Problem: Ad schemaextention for LAPS not possible
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1
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19
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December 16, 2025
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Problem: univention-keycloak certificate verify failed
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1
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27
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December 17, 2025
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Problem: Keycloak SSO login failures in UCS
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1
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28
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December 15, 2025
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Problem: Wi-Fi printers fail to authenticate via FreeRADIUS after upgrade to UCS 5.2
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1
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21
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December 15, 2025
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Problem: Users Unable to Change Password After Reset
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2
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19
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December 16, 2025
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Problem: Disabled Student Accounts Are Still Synced to Apple School Manager
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1
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21
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December 16, 2025
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Problem: school replica cannot install completely from scratch
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1
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16
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December 11, 2025
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Problem: Office365 Connector AttributeError: 'NoneType' object has no attribute 'get'
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1
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11
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December 12, 2025
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