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How-tos and guides provided by the community and the Univention team. The articles documenting additional functionality based on Univention products. They are offered by Univention and the community with the intention …

0 1820 May 2, 2017
Pre-update checks for UCS 5.0-0 aborts warning about a very large Samba TDB database
samba-ad ,  samba ,  samba-ad-dc ,  ucs-4-4 ,  ucs-5-0 ,  samba4 ,  ucs-4-4
0 1330 June 9, 2021
UCS unaffected by the OpenSSH/XZ/liblzma supply chain vulnerability (CVE-2024-3094)
security ,  ssh
0 257 March 30, 2024
Status of Meltdown, Spectre and Foreshadow/L1TF and MDS security issues in UCS
ucs-4-2 ,  kernel ,  security ,  ucs-4-3 ,  meltdown ,  spectre ,  foreshadow ,  l1tf ,  ucs-4-4 ,  mds
0 5200 January 9, 2018
Problem: UMC Diagnostic module complains about deprecated Samba database type tdb in UCS 5.2
samba-ad ,  samba ,  samba-ad-dc ,  samba4
2 103 March 26, 2024
Problem: AD-Connector doesn't start due to SSL problems
ssl ,  ad-connection ,  problem ,  ucs-5
0 1074 March 31, 2023
Cool Solution - Single Server Backup and Restore
ucs-4-1 ,  cool-solution ,  backup
0 2128 February 28, 2017
Samba4 / Active Directory-compatible Domain Controller has been uninstalled when updating UCS 5.0-3 errata, or update to 5.0-4(Bug 56516)
samba-ad ,  update ,  ucs-5-0-3
0 401 September 4, 2023
Updating from PostgreSQL 11 to PostgreSQL 15
postgresql ,  installation ,  ucs-5-2
0 919 October 18, 2023
Renewing the complete SSL certificate chain
ucs-3 ,  ucs-4 ,  ssl ,  certificates ,  root-ca
0 6724 June 17, 2015
Renewing the SSL certificates
ucs-4 ,  ssl ,  certificates ,  ucc ,  ucs-5
0 43363 August 8, 2017
Analyze boot problems
ucs-4 ,  grub ,  console ,  installation ,  serial
0 2242 August 1, 2017
Remove LDAP schema extensions
openldap ,  ucs-4 ,  ldap ,  schema
1 5032 October 7, 2022
How to enable core dumps on UCS systems
ucs-3 ,  ucs-4 ,  systemd ,  installation ,  core ,  ulimit ,  segfault ,  ucs-5
0 1689 November 24, 2016
Updating from PostgreSQL 9.1 to PostgreSQL 9.4
ucs-4 ,  postgresql ,  ucs-4-2 ,  installation
0 4993 February 27, 2018
Migration of OpenLDAP database backend from BDB to MDB
ldap ,  howto ,  ucs-5
2 355 January 22, 2024
Troubleshooting Windows domains logons
ucs-3 ,  samba-ad ,  windows ,  samba ,  ucs-4 ,  servicesforwindows ,  troubleshooting ,  login ,  logon ,  ucs-5
0 1021 August 26, 2014
Problem: Evaluating group policies
ucs-3 ,  samba-ad ,  ucs-4 ,  group-policy ,  servicesforwindows ,  gpo ,  samba4
1 4720 November 17, 2023
Lost services on fileserver if master is shut down
openldap ,  samba ,  ucs-4 ,  servicesforwindows ,  shares ,  ldap ,  samba4
0 742 February 9, 2015
Microsoft Windows 11 22H2 clients refuse to talk to UCS Samba print servers
samba ,  printing ,  printmanagement ,  samba4 ,  print ,  windows-11
0 888 June 13, 2023
Problem: Windows logon issues after installing 07-2023 Microsoft updates
windows ,  samba ,  ucs-4-4 ,  ucs-5 ,  samba4 ,  ucs-4-4
0 3456 July 13, 2023
DNS-Problems in Samba4
samba-ad ,  samba ,  ucs-4 ,  dns ,  samba-ad-dc ,  samba-dnsupdate ,  samba4
0 2045 April 3, 2018
DRS Replication fails
samba-ad ,  samba ,  ucs-4 ,  dns ,  drs-replication ,  samba-replication ,  samba4
0 4042 February 14, 2017
Samba 4 - Deleted Objects
samba-ad ,  ucs-4 ,  servicesforwindows ,  replication ,  ad ,  drs ,  drs-replication ,  samba4
0 5438 February 4, 2014
Samba 4 Troubleshooting
ucs-3 ,  samba-ad ,  samba ,  ucs-4 ,  servicesforwindows ,  drs-replication ,  samba-replication ,  samba4
0 16478 January 4, 2017
How-to: Handle s4-connector rejects
samba-ad ,  ucs-4 ,  s4-connector ,  servicesforwindows ,  reject ,  ucs-5 ,  samba4
0 16676 January 11, 2016
Steps after a Backup2Master
ucs-4 ,  backup2master ,  ucs ,  support ,  b2m
0 1232 March 16, 2017
Maintenance Cycle for UCS
5 1038 October 4, 2023
Setup central syslog server
ucs-4 ,  syslog ,  rsyslog
0 4300 February 2, 2017
Patch level releases
3 265 October 4, 2023
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