UCS 2.4 - Univention

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5 Univention Management Console • DNS domain name • LDAP basis • Windows domain name Affected system services will be restarted during the changes. Since these are basic settings, the overall system should also be restarted once all the changes are made. More information can be found in Chapter 2.4. 5.4.2 Nagios A telephone number can be entered here for Nagios. With this option, Nagios not only sends events to an e-mail address, an SMS is also sent to a mobile phone. More information can be found in the Nagios documentation [12]. 5.4.3 Mail server configuration Basic settings for the mail server are performed in the mail server wizard. 168 • Spam filtering This checkbox is used to activate/deactivate spam filtering. Further information can be found in Chapter 12.4. • Virus detection This checkbox is used to activate/deactivate virus detection. Further information can be found in Chapter 12.5. • IMAP access IMAP access to mailboxes can be switched on and off here. • IMAP quota support This option can be used to enforce a setting so that the size of the inbox is checked when IMAP mailboxes are accessed. • POP3 access POP3 access to mailboxes can be switched on and off here. • Maximum message size The maximum size in bytes for acceptable e-mails can be set here. • Alternative e-mail address for root Many system servers send the root user status e-mails. An alternative recipient for the root user can be specified here.
6 Univention Virtual Machine Manager (UVMM) Contents 6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 6.1.1 Paravirtualisation / virtIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 6.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 6.3 Managing virtual machines with UVMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 6.1 Introduction 6.3.1 Creating a virtual instance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 6.3.2 Modifying virtual machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 6.3.3 Migration of virtual machines from failed virtualization servers . . . . . . . . . . . . . 178 Univention Virtual Machine Manager (UVMM) is a management system for virtualisation servers and virtual machines. It offers the possibility of monitoring all the virtualisation servers (based on Xen or KVM) registered in the UCS domain and administrating the virtual instances on these systems. A Univention Management Console module forms the management interface; it can be installed on any system in the UCS domain (however, a domain controller is preferable). All virtualisation servers are then administrated from this management system. Section 6.2 describes the installation of the management system and the virtualisation servers and the functions of the Univention Management Console module. Univention Wiki (http://wiki.univention.de) includes a step-by-step quickstart guide [13] and further technical documentation as well as howtos [14]. (Currently only available in German) 6.1.1 Paravirtualisation / virtIO In principle, the virtualised systems can run arbitrary operating systems. This mode of operation is called fully virtualised systems. KVM and Xen each offer interfaces to provide the virtualised systems with direct access to the resources of the virtualisation server. This considerably improves performance. In Xen, this technology is referred to as paravirtualisation. Current Linux systems support paravirtualisation as standard; support drivers need to be installed for Microsoft Windows systems (see [14]). KVM offers the virtIO interface. This allows network and storage devices a direct connection to the KVM resources. This technology is comparable to paravirtualisation. When menu points in UVMM refer to paravirtualisation, this also includes virtIO. 169
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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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’General’ tab Name (*) 4.5 Univ
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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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Page 175 and 176: 6.3.2.2 Operations (Starting/stoppi
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Page 183 and 184: tions. 7.4 Configuration of LDAP AC
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Page 189 and 190: 8.2.3 Print server 8.3 Building Sam
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Page 203 and 204: 9 Desktop systems Contents 9.1 Intr
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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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univention-repository-merge --dest
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example, synchronisation as of UCS
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12 Mail Contents 12.1 Introduction
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12.3 Setting up the mail server To
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12.3 Setting up the mail server ent
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12.5 Virus filters can be changed i
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Field Value to be entered 12.6 Conf
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13 Print services Contents 13.1 Int
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13.2.3 Windows systems as print ser
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13.3 Configuring printer shares Onc
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13.5 Print quota 13.5 Print quota T
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13.5 Print quota entry is confirmed
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13.5 Print quota -G -pgroups pg1[,p
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14 Univention Configuration Registr
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sshd/permitroot: yes sshd/xforwardi
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14.5 Creating new Univention Config
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14.8 Regeneration of configuration
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14.10 Univention Configuration Regi
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closed with the string @!@. 14.12 I
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15 Univention System Setup Contents
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Figure 15.2: Basic settings in Univ
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Figure 15.4: Language settings in U
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15.2 Univention System Setup module
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15.2.6 Time zone Time zones can be
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15.5 Changing machine passwords/SSL
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16 Frequently asked questions Conte
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16.3 How does a user change his pas
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16.7 Thin clients experience log-in
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16.12 Avoiding double log-ins on Wi
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Bibliography [1] Univention. Overvi
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[26] Univention. Web proxies with U
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UCS 2.4 - Univention

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