Knowledge Base

Supported How-tos and guides provided by the community and the Univention team. Cool Solutions Community How-tos and guides provided by the community and the Univention team.

Topic	Replies	Views	Activity
About the Knowledge Base category Knowledge Base	0	2492	February 14, 2017
Problem: Keycloak Upgrade Fails Due to Incorrect PostgreSQL Version Detection in Multi Node Environments Community postgresql , update , problem , ucs-5 , keycloak , ucs-5-2	1	14	July 4, 2025
How-to: Re-enable /var/log/daemon.log Logging on UCS 5.2 Community debian , syslog , rsyslog , howto , journald , ucs-5-2	1	15	July 3, 2025
QA: Kerberos Authentication and External Trusts in UCS Domains Community kerberos , trust , ad , q-a , ntlm , ucs-5-2	1	14	July 2, 2025
Problem: SSSD Socket failures after upgrading to UCS 5.2-x Community systemd , problem , pam , nss , ucs-5-2 , sssd	1	19	July 2, 2025
Samba deprecates rc4-hmac cipher for Kerberos session keys Community samba-ad , security , samba-ad-dc , active-directory , samba4	1	2666	July 1, 2025
Problem: Joining to Samba/AD fails in case `Default-First-Site-Name` was removed Supported samba-ad , samba , join , samba-ad-dc , domainjoin	0	71	March 24, 2025
Problem: univention-translog ldap: error: argument TID: Positive integer required Community listener , notifier , translog , ucs-5	1	10	June 25, 2025
Problem: it is not possible to install a samba 4 domaincontroller into a samba 3 environment Community	1	18	June 25, 2025
Howto: Re-Initialize O365 After Certificate Change Community ucs-4 , office-365 , certificates , howto	0	1680	February 21, 2020
Cool Solution - Automatically create users home directories Cool Solutions cool-solution , ucs-5-0 , ucs-5-2	0	2147	March 19, 2019
Problem:UCS@school: DNS Lookup Fails on Primary Node Community samba , dns , samba-ad-dc , problem , ucs-5	1	22	June 16, 2025
Problem: "Invalid syntax: objectClass: value #0 invalid per syntax." Community traceback , ucs-5	1	9	June 16, 2025
Problem:UCS@school Kelvin API Cannot Manage the ucsschoolAdministrator Role Community umc , ucsschool , problem , ucs-5 , kelvin	1	11	June 13, 2025
How-to: Samba4 - Clean Up Incorrect DNS SRV Records Community samba-ad , samba , dns , samba-dnsupdate , howto , ucs-5 , samba-tool	1	46	June 4, 2025
How-to: Configuring OX Drive, OX Guard (PGP) and S/MIME Community open-xchange , howto , ucs-5 , ox-guard , ox-drive	1	29	June 4, 2025
Problem:UCS@school - Internal Server Error when Assigning Computers in “Manage Computer Rooms” Community udm , windows , networking , ucsschool , problem , ucs-5	1	15	June 3, 2025
Problem: Fix Missing Group Memberships - uniqueMember & memberUid Community udm , problem , membership , ucs-5 , uniquemember , memberuid	1	17	June 3, 2025
Problem:S4-Connector Rejects - Invalid syntax: Maximum password age Community udm , samba , ucs-4 , problem , ucs-5 , s4	1	12	June 3, 2025
Problem:DHCP Pool Statements - Object class violation: attribute dhcpStatements not allowed Community dhcp , ldap , schema , problem , slapd , ucs-5	1	19	May 28, 2025
Problem: Powershell m365 saml script not always working anymore Community saml , office-365 , ucs-5 , keycloak , powershell	1	73	May 21, 2025
Cool Solution - Setup sudo with ldap on multiserver environments Cool Solutions ucs-5 , ucs-5-0 , ucs-5-2	0	842	August 25, 2023
How-to: Mail-Primary-Address - Change the mailPrimaryAddress from user objects Community udm , bash , howto , mailprimaryaddress , ucs-5 , email	1	18	May 19, 2025
Samba 4 Troubleshooting Supported ucs-3 , samba-ad , samba , ucs-4 , servicesforwindows , drs-replication , samba-replication , ucs-5 , samba4	0	18659	January 4, 2017
Cool Solution - Nextcloud integration with a LDAP scheme extension in UCS Cool Solutions ucs-5-0 , ucs-5-2	0	549	August 26, 2024
Problem: samba /kerberos issues after update to 5.2 Community samba , samba-ad-dc , ucs-5-2	1	47	May 16, 2025
Updating from PostgreSQL 11 to PostgreSQL 15 Supported postgresql , installation , ucs-5-0 , ucs-5-2	0	3780	October 18, 2023
Problem: Univention network - Failed to start Register current IP addresses in LDAP directory Community ucr , dhcp , networking , problem , ucs-5	1	21	May 12, 2025
Problem:Reverse IP Lookup for Clients Community udm , dns , problem , reverse-zone , ucs-5	1	21	May 12, 2025
How-to: UMC Portal - Change the default startsite to /univention/management Community umc , portal , apache , howto , ucs-5 , ucs-5-2	1	18	April 30, 2025