UCS 2.4 - Univention

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16 Frequently asked questions directory manager and univention repository and as the name server in the SOA records for forward and reverse zones, the script also exchanges it in these sites for the former DC backup. Attention: If an external DNS service is being used, the entries must be adapted there manually. If the former DC master was entered in the LDAP directory as a mail relay host, the script also changes this entry to the former DC backup. This change is performed with Univention Directory Manager; the LDAP replication automatically adapts the Univention Configuration Registry variable mail/relay on all systems. The script changes the server role entered in the LDAP directory of the former DC backup to DC master and deletes the former DC master and, where applicable, its DNS host entry in the forward lookup zone, its pointer in the reverse lookup zone and its DHCP host entry from the LDAP directory. Note that the former DC backup is entered as the name server on all computers in the domain if the internal DNS service is switched on. Usually, the DC backup should be entered as the second name server after the DC master during the installation of each computer. Along with the automatic changes, some changes must be performed manually: 1. Further DNS settings which point to the former DC master. 2. DHCP settings which point to the former DC master (e.g., name server and WINS server). 3. Univention Configuration Registry settings which point to the former DC master. The respective entries in the LDAP directory must be adapted with Univention Directory Manager and those on the computers with Univention Configuration Registry. The univention-backup2master script only ensures that the domain controller master function is adopted by the DC backup. The script does not set up replacements for other services that the former DC master may have provided, e.g., groupware or terminal services. A new DC backup should be put in place to reinstate system redundancy. 16.2 How can I install Microsoft TrueType fonts subsequently? Some applications use Microsoft TrueType fonts as standard. When these are not available they are usually replaced with other fonts automatically. For licensing reasons the Microsoft TrueType fonts cannot be delivered on the UCS installation CD. An attempt is made during the installation to download these from the Internet from sourceforge.net. If this attempt fails during the installation, e.g., when there is no Internet connection available, the fonts can be installed at any other time using the command update-ms-fonts. If installation of the Microsoft TrueType fonts was deselected during the installation, it can be made available by subsequent installation of the msttcorefonts package. 302
16.3 How does a user change his password? 16.3 How does a user change his password? There are a number of ways for users to change their password. The new password must always comply with the security policy. If this is not the case, this may result in different error messages depending on the mechanism used. If you have problems changing your password, you should firstly check whether the security requirements are complied with. 16.3.1 On a Linux workstation If the user is logged on to a Linux workstation, he can open the program with which he can change his password via K menu ➞ Control Center ➞ Security & Privacy ➞ Password & User Account ➞ Change Password. The program requests the old password first and then the new password. If the new password is longer than eight characters a warning is given, which can be confirmed by clicking on the [Use As Is] button. If the password does not comply with the security requirements, the message Your password has not been changed appears together with an explanation of why the change failed. The user can also change his password using kpasswd on the command line. More detailed error messages are given there. (see Chapter 16.5). 16.3.2 On a Windows workstation If the user is logged on to a Windows workstation he can open the dialogue for changing his password with ”Ctrl + Alt + Del”. 16.3.3 When logging on If a user’s password is no longer valid and the user tries to log on to the domain, a window opens automatically asking him to change his password. For setting the password expiry interval see Chapter 4.5.11. 16.3.4 Via Univention Directory Manager The ucsUCRVldap/acl/user/password/change must be set to yes on the DC master for the user to be able to change his password via Univention Directory Manager. After logging on to Univention Directory Manager, the dialogue for changing a user password can be opened by choosing Password in the left screen margin. The new password must be given identically in the Password (*) and Password (retype) (*) fields. 16.4 How is the password for root changed? Each UCS computer has a root user. Its password is changed locally on the computer using the passwd command. 303
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Univention Corporate Server Manual
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Contents 1 Introduction 11 1.1 What
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Contents 5.3.12 Reboot . . . . . .
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Contents 10.7.2 Hardware drivers /
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Contents 14.11Including additional
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1 Introduction Contents 1.1 What is
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1.3 Further documentation selective
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2 Domain concept Contents 2.1 Intro
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2.2 UCS system roles The DC backup
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2.4 Joining domains 2.4 Joining dom
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2.4.2 How to join domains with Wind
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2.4 Joining domains If the computer
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3 Installation Contents 3.1 Introdu
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continued. 3.2 Text-based Installat
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g) Base system Attention: 3.2 Text-
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Figure 3.3: Partitioning hard drive
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3.2 Text-based Installation as the
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Figure 3.5: Selection of components
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17. System settings 3.2 Text-based
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3.4 Installing and Renewing Licence
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4 Univention Directory Manager Cont
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Figure 4.1: Unsecured start page 4.
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Figure 4.3: Automatic log-out after
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4.3 Univention Directory Manager Wi
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last names of the users, a column w
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4.4 Navigation in LDAP By clicking
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4.5 Univention Directory Manager mo
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’User account’ tab Account expi
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Attention: 4.5 Univention Directory
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Further information can be found in
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’Groups’ tab 4.5 Univention Dir
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the user is disconnected after auth
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Mail address 4.5 Univention Directo
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DNS Entry 4.5 Univention Directory
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’General’ tab Name (*) 4.5 Univ
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Reverse zone for DNS entry 4.5 Univ
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’Deployment’ tab 4.5 Univention
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Browseable 4.5 Univention Directory
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Valid users 4.5 Univention Director
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Clients can send a lock request wit
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Subtree checking 4.5 Univention Dir
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Disconnect Time 4.5 Univention Dire
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Manufacturer 4.5 Univention Directo
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’Samba’ tab 4.5 Univention Dire
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’Alias’ tab Canonical name (*)
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server. Attention: 4.5 Univention D
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• Lease time • NetBIOS • Rout
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Last address 4.5 Univention Directo
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4.5.10.5 DHCP host 4.5 Univention D
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4.5.11.1 Adding a policy 4.5 Univen
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Declines 4.5 Univention Directory M
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’[DHCP NetBIOS]’ tab NetBIOS na
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RAM on the graphics adapter in kb 4
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System shutdown 4.5 Univention Dire
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’[Print quota]’ tab Attention:
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The DNs of the predefined container
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’General’ tab Name (*) The name
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Tab name 4.5 Univention Directory M
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Displayed attributes 4.5 Univention
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Data type Syntax 4.5 Univention Dir
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• Wizards 4.6 Policy-controlled L
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4.6 Policy-controlled Layouts for t
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4.6 Policy-controlled Layouts for t
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5 Univention Management Console Con
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Figure 5.1: Login mask of Univentio
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5.3.2 Kernel modules 5.3 Standard m
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Figure 5.4: Univention Configuratio
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Figure 5.6: List of partitions 5.3
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5.3.10 Joining a domain Figure 5.8:
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5.3.13 Online update Figure 5.10: R
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Figure 5.13: Online update: compone
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6 Univention Virtual Machine Manage
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6.3 Managing virtual machines with
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6.3.2 Modifying virtual machines Fi
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6.3.2.2 Operations (Starting/stoppi
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7 UCS Directory service Contents 7.
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tions. 7.4 Configuration of LDAP AC
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- Using a concrete DN via dn.base,
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8 Services for Windows Contents 8.1
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8.2.3 Print server 8.3 Building Sam
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8.4 Extended Configuration When set
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8.4 Extended Configuration auth/use
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8.4.2 WINS 8.4 Extended Configurati
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8.4 Extended Configuration System p
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8.4.5.4 Profile directory 8.4 Exten
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8.4 Extended Configuration This nam
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9 Desktop systems Contents 9.1 Intr
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9.2.3 Mobile clients 9.3 Managing d
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9.3.4 NX 9.4 VNC desktop sharing Li
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9.5 Thin client environment are not
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9.5 Thin client environment If thin
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9.5 Thin client environment If ESD
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9.6 Home directories computer on wh
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9.7.1 Creating and modifying global
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Figure 9.1: Univention Directory Ma
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10 Basic System Services Contents 1
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10.3 Packet filter with Univention
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10.3.5 Testing Univention Firewall
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sudo tool for running users with el
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10.6 Logging of system messages and
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10.8 GRUB boot manager The GRUB boo
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10.9.3 Defining cron jobs in Univen
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10.12 SSH In the basic setting, a r
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11 Software maintenance Contents 11
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11.2 UCS updates system version whi
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11.3.1 Assigning repository servers
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11.3 Package maintenance repository
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Figure 11.2: Package list client 11
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11.3.6.4 Information about installe
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11.5 Repository management a reposi
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Page 273 and 274: 13.5 Print quota entry is confirmed
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Page 281 and 282: 14.5 Creating new Univention Config
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Page 289 and 290: 15 Univention System Setup Contents
Page 291 and 292: Figure 15.2: Basic settings in Univ
Page 293 and 294: Figure 15.4: Language settings in U
Page 295 and 296: 15.2 Univention System Setup module
Page 297 and 298: 15.2.6 Time zone Time zones can be
Page 299 and 300: 15.5 Changing machine passwords/SSL
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Page 305 and 306: 16.7 Thin clients experience log-in
Page 307 and 308: 16.12 Avoiding double log-ins on Wi
Page 309 and 310: Bibliography [1] Univention. Overvi
Page 311: [26] Univention. Web proxies with U
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UCS 2.4 - Univention

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