UCS 2.4 - Univention

More documents

Recommendations

Info

6 Univention Virtual Machine Manager (UVMM) Direct access defines whether VNC access to the virtual machine is available. If the option is activated, the UMC module can be used to start a VNC program directly. The VNC URL is displayed in a tool tip. A Java VNC program is used for this in the default setting. By switching the Univention Configuration Registry variable uvmm/umc/vnc to the value of external, an external program can be used instead. This requires the web browser on the workstation computer to be configured properly to handle the URI scheme vnc://. Available globally defines whether the VNC remote access is also possible from remote systems. If the option is not activated, the VNC session can only be accessed from the virtualisation server. Password sets a password for the VNC connection. Keyboard layout defines the layout for the keyboard in the VNC session. 6.3.3 Migration of virtual machines from failed virtualization servers As of UCS 2.4-4, information about the virtual machines running on the virtualization servers is stored centrally via the Univention Virtual Machine Manager. If the image files of the virtual machines are stored in a storage pool, the machine can be migrated to another server and restarted there if a virtualization server fails. How to set up one of these storage pools is documented in the Univention Wiki [14] and is a prerequisite for migrations. If a server fails (failure detection is performed periodically every 15 seconds), the server and the virtual instances operated on it are identified as inactive with a red symbol, a warning appears (see Figure 6.5) and Migrate is offered as the only operation in the menu. 178 Figure 6.5: Migrating a failed virtual machine from a failed virtualization server
6.3 Managing virtual machines with UVMM Following the migration, the virtual instance is no longer displayed in the overview tree of the failed virtualization server in the UVMM, but it is not possible for UVMM to report back to the virtualization server as it is no longer available. Attention: It must be ensured under all circumstances that the virtual machine on the original and the secondary server are not started in parallel; this would involve their both writing in the image files simultaneously, which would result in data loss. If virtual machines are started automatically after startup, simultaneous access must be prohibited by disconnecting the network connection or restricting access to the storage pool. If the failed computer is reactivated - e.g., in the case of a temporary power failure - the virtual machines re- main available on the system locally and are reported to UVMM; consequently, there are then two versions of the instance. As such, one of the two instances should subsequently be deleted. However, the employed image files for the drives should not be deleted at the same time. 179
Page 1 and 2:
Univention Corporate Server Manual
Page 3 and 4:
Contents 1 Introduction 11 1.1 What
Page 5 and 6:
Contents 5.3.12 Reboot . . . . . .
Page 7 and 8:
Contents 10.7.2 Hardware drivers /
Page 9 and 10:
Contents 14.11Including additional
Page 11 and 12:
1 Introduction Contents 1.1 What is
Page 13 and 14:
1.3 Further documentation selective
Page 15 and 16:
2 Domain concept Contents 2.1 Intro
Page 17 and 18:
2.2 UCS system roles The DC backup
Page 19 and 20:
2.4 Joining domains 2.4 Joining dom
Page 21 and 22:
2.4.2 How to join domains with Wind
Page 23 and 24:
2.4 Joining domains If the computer
Page 25 and 26:
3 Installation Contents 3.1 Introdu
Page 27 and 28:
continued. 3.2 Text-based Installat
Page 29 and 30:
g) Base system Attention: 3.2 Text-
Page 31 and 32:
Figure 3.3: Partitioning hard drive
Page 33 and 34:
3.2 Text-based Installation as the
Page 35 and 36:
Figure 3.5: Selection of components
Page 37 and 38:
17. System settings 3.2 Text-based
Page 39 and 40:
3.4 Installing and Renewing Licence
Page 41 and 42:
4 Univention Directory Manager Cont
Page 43 and 44:
Figure 4.1: Unsecured start page 4.
Page 45 and 46:
Figure 4.3: Automatic log-out after
Page 47 and 48:
4.3 Univention Directory Manager Wi
Page 49 and 50:
last names of the users, a column w
Page 51 and 52:
4.4 Navigation in LDAP By clicking
Page 53 and 54:
4.5 Univention Directory Manager mo
Page 55 and 56:
’User account’ tab Account expi
Page 57 and 58:
Attention: 4.5 Univention Directory
Page 59 and 60:
Further information can be found in
Page 61 and 62:
’Groups’ tab 4.5 Univention Dir
Page 63 and 64:
the user is disconnected after auth
Page 65 and 66:
Mail address 4.5 Univention Directo
Page 67 and 68:
DNS Entry 4.5 Univention Directory
Page 69 and 70:
’General’ tab Name (*) 4.5 Univ
Page 71 and 72:
Reverse zone for DNS entry 4.5 Univ
Page 73 and 74:
’Deployment’ tab 4.5 Univention
Page 75 and 76:
’General’ tab Name (*) 4.5 Univ
Page 77 and 78:
Browseable 4.5 Univention Directory
Page 79 and 80:
Valid users 4.5 Univention Director
Page 81 and 82:
Page 83 and 84:
Clients can send a lock request wit
Page 85 and 86:
Subtree checking 4.5 Univention Dir
Page 87 and 88:
Disconnect Time 4.5 Univention Dire
Page 89 and 90:
Manufacturer 4.5 Univention Directo
Page 91 and 92:
Page 93 and 94:
’Samba’ tab 4.5 Univention Dire
Page 95 and 96:
Page 97 and 98:
’Alias’ tab Canonical name (*)
Page 99 and 100:
Page 101 and 102:
server. Attention: 4.5 Univention D
Page 103 and 104:
• Lease time • NetBIOS • Rout
Page 105 and 106:
Last address 4.5 Univention Directo
Page 107 and 108:
4.5.10.5 DHCP host 4.5 Univention D
Page 109 and 110:
4.5.11.1 Adding a policy 4.5 Univen
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Declines 4.5 Univention Directory M
Page 117 and 118:
’[DHCP NetBIOS]’ tab NetBIOS na
Page 119 and 120:
Page 121 and 122:
RAM on the graphics adapter in kb 4
Page 123 and 124:
System shutdown 4.5 Univention Dire
Page 125 and 126:
’[Print quota]’ tab Attention:
Page 127 and 128: 4.5 Univention Directory Manager mo
Page 131 and 132: ’General’ tab Name (*) 4.5 Univ
Page 135 and 136: The DNs of the predefined container
Page 137 and 138: ’General’ tab Name (*) The name
Page 139 and 140: Tab name 4.5 Univention Directory M
Page 141 and 142: Displayed attributes 4.5 Univention
Page 145 and 146: Data type Syntax 4.5 Univention Dir
Page 147 and 148: • Wizards 4.6 Policy-controlled L
Page 149 and 150: 4.6 Policy-controlled Layouts for t
Page 151 and 152: 4.6 Policy-controlled Layouts for t
Page 153 and 154: 5 Univention Management Console Con
Page 155 and 156: Figure 5.1: Login mask of Univentio
Page 157 and 158: 5.3.2 Kernel modules 5.3 Standard m
Page 159 and 160: Figure 5.4: Univention Configuratio
Page 161 and 162: Figure 5.6: List of partitions 5.3
Page 163 and 164: 5.3.10 Joining a domain Figure 5.8:
Page 165 and 166: 5.3.13 Online update Figure 5.10: R
Page 167 and 168: Figure 5.13: Online update: compone
Page 169 and 170: 6 Univention Virtual Machine Manage
Page 171 and 172: 6.3 Managing virtual machines with
Page 173 and 174: 6.3.2 Modifying virtual machines Fi
Page 175 and 176: 6.3.2.2 Operations (Starting/stoppi
Page 177: 6.3 Managing virtual machines with
Page 181 and 182: 7 UCS Directory service Contents 7.
Page 183 and 184: tions. 7.4 Configuration of LDAP AC
Page 185 and 186: - Using a concrete DN via dn.base,
Page 187 and 188: 8 Services for Windows Contents 8.1
Page 189 and 190: 8.2.3 Print server 8.3 Building Sam
Page 191 and 192: 8.4 Extended Configuration When set
Page 193 and 194: 8.4 Extended Configuration auth/use
Page 195 and 196: 8.4.2 WINS 8.4 Extended Configurati
Page 197 and 198: 8.4 Extended Configuration System p
Page 199 and 200: 8.4.5.4 Profile directory 8.4 Exten
Page 201 and 202: 8.4 Extended Configuration This nam
Page 203 and 204: 9 Desktop systems Contents 9.1 Intr
Page 205 and 206: 9.2.3 Mobile clients 9.3 Managing d
Page 207 and 208: 9.3.4 NX 9.4 VNC desktop sharing Li
Page 209 and 210: 9.5 Thin client environment are not
Page 211 and 212: 9.5 Thin client environment If thin
Page 213 and 214: 9.5 Thin client environment If ESD
Page 215 and 216: 9.6 Home directories computer on wh
Page 217 and 218: 9.7.1 Creating and modifying global
Page 219 and 220: Figure 9.1: Univention Directory Ma
Page 221 and 222: 10 Basic System Services Contents 1
Page 223 and 224: 10.3 Packet filter with Univention
Page 225 and 226: 10.3.5 Testing Univention Firewall
Page 227 and 228: sudo tool for running users with el
Page 229 and 230:
10.6 Logging of system messages and
Page 231 and 232:
10.8 GRUB boot manager The GRUB boo
Page 233 and 234:
10.9.3 Defining cron jobs in Univen
Page 235 and 236:
10.12 SSH In the basic setting, a r
Page 237 and 238:
11 Software maintenance Contents 11
Page 239 and 240:
11.2 UCS updates system version whi
Page 241 and 242:
11.3.1 Assigning repository servers
Page 243 and 244:
11.3 Package maintenance repository
Page 245 and 246:
Figure 11.2: Package list client 11
Page 247 and 248:
11.3.6.4 Information about installe
Page 249 and 250:
11.5 Repository management a reposi
Page 251 and 252:
univention-repository-merge --dest
Page 253 and 254:
example, synchronisation as of UCS
Page 255 and 256:
12 Mail Contents 12.1 Introduction
Page 257 and 258:
12.3 Setting up the mail server To
Page 259 and 260:
12.3 Setting up the mail server ent
Page 261 and 262:
12.5 Virus filters can be changed i
Page 263 and 264:
Field Value to be entered 12.6 Conf
Page 265 and 266:
13 Print services Contents 13.1 Int
Page 267 and 268:
13.2.3 Windows systems as print ser
Page 269 and 270:
13.3 Configuring printer shares Onc
Page 271 and 272:
13.5 Print quota 13.5 Print quota T
Page 273 and 274:
13.5 Print quota entry is confirmed
Page 275 and 276:
13.5 Print quota -G -pgroups pg1[,p
Page 277 and 278:
14 Univention Configuration Registr
Page 279 and 280:
sshd/permitroot: yes sshd/xforwardi
Page 281 and 282:
14.5 Creating new Univention Config
Page 283 and 284:
14.8 Regeneration of configuration
Page 285 and 286:
14.10 Univention Configuration Regi
Page 287 and 288:
closed with the string @!@. 14.12 I
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
Page 301 and 302:
16 Frequently asked questions Conte
Page 303 and 304:
16.3 How does a user change his pas
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
show all

UCS 2.4 - Univention

Create successful ePaper yourself

Delete template?

Save as template?