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Chapter 9. Authentication in ThinLinc
In ThinLinc, this problem is solved using two programs, tl-nds-posixuser and tl-nds-posixgroup that
searches the directory for users that don’t have posixAccount among their objectclasses, and for groups
that don’t have posixGroup among their objectclasses. When it finds such a user or group, the values
required are automatically assigned. Optionally, tl-nds-posixuser can be used to assign filesystem
permissions to home directories exported from Novell Netware servers in Independent mode (see Section
10.2).
The idea is that tl-nds-posixuser and tl-nds-posixgroup are first run during deployment of the ThinLinc
installation. At this occasion, all existing users and groups are assigned the posixAccount attributes.
After deployment, tl-nds-posixuser and tl-nds-posixgroup are meant to be run from cron at regular
intervals, for example every 15 minutes. This way, new users and groups added to the directory will be
assigned the relevant attributes automatically. This means that new users will be able to log in to the
ThinLinc servers without the administrator having to take any action, after a short delay determined by
the interval between each tl-nds-posixuser invocation.
9.3.4.1. Configuration of tl-nds-posixuser and tl-nds-posixgroup
tl-nds-posixuser and tl-nds-posixgroup both need a set of configuration parameters to be able to
perform their dutys. Some of the parameters are common to the two programs, others are
command-specific. Parameters common to the two are stored under the /utils/tl-nds/ hiveconf
folder. Parameters specific to tl-nds-posixuser are stored under the /utils/tl-nds/posixuser/
hiveconf folder, and parameters specific to tl-nds-posixgroup are stored under the
/utils/tl-nds/posixgroup/ hiveconf folder.
It is a good idea to run the ThinLinc Novell Configurator as documented in Section 9.3.1. This creates
the user object needed by tl-nds-posixuser and tl-nds-posixgroup, and writes down information about the
server, user DN and password to /utils/tl-nds/.
All parameters specified in hiveconf can be overridden using command line parameters.
Table 9-1. Configuration Parameters Common to Both tl-nds-posixuser and tl-nds-posixgroup
Hiveconf parameter path Command line parameter Explanation
/utils/tl-nds/ldapuri --ldapuri The LDAP URI to connect to.
This may be either a ldap:// or
ldaps://, the latter for LDAP over
SSL.
/utils/tl-nds/binddn --binddn The DN of the object that should
be used to bind to the eDirectory.
This DN must have permissions
to change some attributes of all
relevant users in the directory.
See below for information on the
exact procedure for creating this
object.
96
- Copyright © 2014 Cendio AB 2
- Table of Contents 3
- Chapter 1. Introduction 11
- 2.1. Session Overview 14
- Chapter 3. Installation 15
- 3.2.3. Server Sizing 16
- • Memory 17
- 3.3.4.1. Relays 21
- 3.3.4.2. DNS 22
- 3.5.1. Acquire New Licenses 23
- 3.5.4. Run tl-setup 24
- 3.7.1. Overview 25
- 3.8. VirtualGL 26
- Chapter 4. License Handling 29
- Chapter 5. Printer Features 31
- 5.2.1. CUPS Browsing 32
- 5.3. Local printer support 33
- 5.3.3. Device dependent mode 34
- 5.4. Nearest printer support 35
- 5.5. Printer Access Control 36
- 5.5.1. Theory of Operation 37
- 5.5.2. Requirements 37
- 5.5.4. Configuration 38
- 5.6.1. Configuration 39
- 6.1. Overview 41
- 6.1.3. Theory of Operation 42
- /etc/ssh/ssh_host_ 43
- /vsmserver/terminalservers 43
- 7.1. Client usage 47
- 7.1.3. Language Settings 49
- 7.1.5. The session menu 50
- 7.3. Local device export 53
- 7.3.3. Drives 54
- 7.3.4. Printer 54
- 7.3.5. Smart Card Readers 54
- 7.4. Client configuration 55
- 7.4.2. Local Devices tab 57
- /dev/ttyS0) or a Windows COM 59
- 7.4.3. Screen tab 61
- 7.4.4. Optimization tab 62
- 7.4.5. Security tab 65
- ALLOW_HOSTKEY_UPDATE 66
- Smart card - certificate filter 68
- 7.5. The XDM mode (UNIX only) 69
- 7.5.1.1. Mouse tab 70
- 7.5.1.2. Keyboard tab 70
- 7.5.1.3. Screen tab 71
- 7.6. Logfile placement 72
- • 1 for port 80 78
- • 0 for Raw 79
- • 5 for Hextile 79
- • 7 for Tight 79
- • 16 for ZRLE 79
- 7.8. Client Customizer 81
- 7.9. Advanced Topics 82
- 8.3. Linux PC 84
- ~/tl-4.3.0-clients 85
- 8.4. Solaris 87
- 8.5. Thin Terminals 87
- 8.5.3. VXL 89
- 8.5.4. HP ThinPro Terminals 89
- 8.5.5. IGEL Universal Desktop 90
- 8.5.8. Other Thin Terminals 91
- Terminal 92
- 8.6.2.1. Basic Configuration 93
- ServerAlias 94
- 8.7.3.1. Server Side 97
- 8.7.3.2. Browser Side 98
- Chapter 8. Client Platforms 100
- 9.2. Limitations 101
- • Trigger a run via iManager 104
- [root@test root] 105
- <filename.pem> 105
- 9.3.5.1. Functionality 109
- 9.3.5.2. Configuration 110
- 9.4.1. Introduction 111
- Single Sign-On 111
- 9.4.2. Key Generation 112
- 9.4.3. Server Configuration 112
- 9.4.4. Client Configuration 112
- 9.5.1. Introduction 113
- 9.5.2. General Requirements 113
- 9.5.3. Key Generation 113
- 9.5.4. Server Configuration 113
- 9.5.5. Client Configuration 114
- 9.5.6. Automatic Connection 114
- 9.5.7.1. Command line options 115
- 9.5.7.2. Configuration 116
- Configuration parameters 116
- 9.6. Using One Time Passwords 118
- Chapter 10. File Access 121
- 10.1.3.1. Using tl-mount-cifs 122
- 10.2.1. Introduction 123
- 10.2.2.1. Requirements 124
- 10.2.3.1. Requirements 126
- 10.2.3.2. Logging in 126
- 10.2.3.3. Mounting Shares 127
- 10.2.3.4. Logging out 127
- 10.2.4.1. Requirements 128
- 10.2.4.2. NDS Configuration 128
- 10.2.4.4. UNIX Configuration 129
- 10.3.1. Introduction 132
- 10.3.2. Activation 132
- 10.3.3. Configuration 133
- 11.1. Introduction 135
- 11.2. Single Sign-On 135
- 11.3. Connection Modes 135
- 12.1.1. Introduction 139
- 12.2.1. Introduction 141
- 12.2.2. Requirements 141
- 12.3.1. Introduction 142
- 12.3.2. Requirements 142
- 12.3.3.3. OSS applications 143
- 12.3.3.4. ALSA applications 144
- 12.4.1. Introduction 145
- 12.4.2. Requirements 145
- Commands in /opt/thinlinc/bin 147
- ~/.ICAClient/appsrv.ini and 152
- ~/.ICAClient/reg.ini 152
- --test ] 155
- 14.1.1. Configuration Options 157
- 14.1.2. Cluster Management 157
- 14.2.3. Parameters in /vsm/ 163
- 14.3.1.1. Log destinations 166
- 14.3.1.2. Subloggers 167
- 14.3.1.3. Log levels 167
- 14.3.2. Per-Session Logging 168
- • -MaxDisconnectionTime s 176
- • -MaxConnectionTime s 176
- • -MaxIdleTime s 176
- Chapter 15. Hiveconf 179
- 15.1.3. Mounting Datasources 180
- 15.2. Hiveconf and ThinLinc 181
- Administration Interface 183
- 16.3. Modules 184
- 16.3.3. The VSM Module 185
- 16.3.3.1. Home 186
- 16.3.3.2. VSM Master 186
- 16.3.3.3. VSM Agent 186
- 16.3.4. The Profiles Module 187
- 16.3.5. The Locations Module 189
- 16.3.5.2. Locations 191
- 16.3.6.1. Application Groups 193
- 16.3.6.4. Menu Structure 193
- Desktop Customizer 197
- 17.2.1. Concepts 198
- 17.2.3. Handling Applications 199
- • Command 200
- • Path to Icon file 201
- • Command Startup Feedback 201
- /opt/kde3 205
- See Section 16.2 for details 207
- /vsm/tunnelservices 208
- SSH tunnel, SSH terminated.) 212
- C.1. Schema extensions 215
- /etc/ldap.conf 216
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