Difference between revisions of "Using Italc Lab Management Tool"
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= Purpose = | = Purpose = | ||
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# Open a shell terminal. | # Open a shell terminal. | ||
# Edit the sudoers file to allow the account teacher to be able to run sudo (administrative) commands by following the steps below: | # Edit the sudoers file to allow the account teacher to be able to run sudo (administrative) commands by following the steps below: | ||
| − | :* Type '''sudo | + | :* Type '''sudo visudo''' |
:* Enter your administrator password. | :* Enter your administrator password. | ||
:* Under the section called "# User Privilege Specification", add a line under "root ALL=(ALL) ALL" to read: | :* Under the section called "# User Privilege Specification", add a line under "root ALL=(ALL) ALL" to read: | ||
| − | :::'''teacher=(ALL) ALL''' | + | :::'''teacher ALL=(ALL) ALL''' |
<ol><li value="5">Save your file by pressing '''CTRL-x''', then press '''y''' for yes, and '''accept the default file pathname'''.</li> | <ol><li value="5">Save your file by pressing '''CTRL-x''', then press '''y''' for yes, and '''accept the default file pathname'''.</li> | ||
<li>Exit your shell, and logout of the administrator account.</li> | <li>Exit your shell, and logout of the administrator account.</li> | ||
| Line 62: | Line 63: | ||
<li>'''sudo chmod -R 640 /etc/italc/keys/private'''</li> | <li>'''sudo chmod -R 640 /etc/italc/keys/private'''</li> | ||
<li>'''sudo chmod -R ug-x /etc/italc/keys/private'''</li></ul></li> | <li>'''sudo chmod -R ug-x /etc/italc/keys/private'''</li></ul></li> | ||
| − | |||
<li>'''sudo chroot /opt/ltsp/amd64'''</li> | <li>'''sudo chroot /opt/ltsp/amd64'''</li> | ||
| − | |||
<li>'''apt-get update'''</li> | <li>'''apt-get update'''</li> | ||
| − | < | + | </ol> |
| − | <li> | + | |
| + | '''NOTE:''' If you get error indicating source is restricted, then you must copy and paste the content from the | ||
| + | '''/etc/apt/sources.list''' file on your <u>server</u> to the '''/etc/apt-sources.list''' in <u>chroot</u>. | ||
| + | Then, in chroot, run '''apt-get update''' | ||
| + | |||
| + | <ol> | ||
| + | <li value="12">'''apt-get install libitalc italc-master'''</li> | ||
<li>'''vi /usr/share/ldm/rc.d/S20-ica-launcher'''</li> | <li>'''vi /usr/share/ldm/rc.d/S20-ica-launcher'''</li> | ||
<li>Enter the following lines in this file:</li> | <li>Enter the following lines in this file:</li> | ||
| Line 80: | Line 85: | ||
<li>Type '''exit''' to leave chroot</li> | <li>Type '''exit''' to leave chroot</li> | ||
<li>Update the image by issuing the command: '''sudo ltsp-update-image'''</li> | <li>Update the image by issuing the command: '''sudo ltsp-update-image'''</li> | ||
| + | <li>exit the terminal (shell)</li> | ||
| + | <li>Startup a <u>thin client</u>, and login</li> | ||
| + | <li>On the <u>server</u> launch italc master by selecting '''APPLICATIONS''' -> '''SYSTEM''' -> '''ITALC'''</li> | ||
| + | <li>You should be able to create a classroom (eg LTSP), and add a computer. The IP address should correspond to the IP address of the thin client. To determine the address of the thin client, you can open a terminal (shell) and issue the '''who''' command. For example, my first thin client is 192.168.1.20</li> | ||
</ol> | </ol> | ||
Latest revision as of 20:41, 21 April 2011
Contents
Purpose
Italc is a program that allows an instructor to control actions of a computer lab's workstation.
Some features of Italc Include:
- Classroom Manager (Overview Mode) - Allows teacher to view all student's Desktop / Applications
- Remote Desktop Control - Allows teacher to control the student's Desktop and lock-out student's access to computer session
- Snapshots - Allows teacher to take snapshot of student's Desktop / Applications
- Demo Mode - Allows teacher to broadcast their desktop session on student's computers (eg. demonstrations)
- Wake-up-on-LAN - Allows teacher to power-up all workstations
- Shutdown Mode - Allows teacher to logout and power-down workstation's CPU.
Here is a link to the Italc WIKI (for more background information): [ http://en.wikipedia.org/wiki/ITALC ]
Setup of Italc
Brief description of Getting Italc to work in LTSP
There is a lot of conflicting, sparse, and confusing information regarding the setup of the Italc application via Internet documents. It is a good idea to take a few moments and explain the general setup of Italc in LTSP.
To be completed...
Installing Italc on Server
Use the synaptic package manager to install the following programs"
- libitalc
- italc-master
- italc-client
Here is a WIKI on how install applications using the Synaptic Package Manager: [ Install Applications in Ubuntu ]
Configuring Italc on Thin Client Image
The following procedure works with the Edubuntu system (with LTSP)...
Steps:
- Login into the administrator account.
- Create an account called teacher. This will be the master account to control the other accounts.
- Open a shell terminal.
- Edit the sudoers file to allow the account teacher to be able to run sudo (administrative) commands by following the steps below:
- Type sudo visudo
- Enter your administrator password.
- Under the section called "# User Privilege Specification", add a line under "root ALL=(ALL) ALL" to read:
- teacher ALL=(ALL) ALL
- Save your file by pressing CTRL-x, then press y for yes, and accept the default file pathname.
- Exit your shell, and logout of the administrator account.
- Login to your teacher account.
- Open a shell terminal.
- Enter the following Linux commands:
- sudo addgroup italc
- sudo adduser teacher italc
- sudo chgrp -R italc /etc/italc/keys
- sudo chmod -R 640 /etc/italc/keys/private
- sudo chmod -R ug-x /etc/italc/keys/private
- sudo chroot /opt/ltsp/amd64
- apt-get update
NOTE: If you get error indicating source is restricted, then you must copy and paste the content from the /etc/apt/sources.list file on your server to the /etc/apt-sources.list in chroot. Then, in chroot, run apt-get update
- apt-get install libitalc italc-master
- vi /usr/share/ldm/rc.d/S20-ica-launcher
- Enter the following lines in this file:
#!/bin/sh /usr/bin/ica & true
- Save and exit this file.
- Type exit to leave chroot
- Update the image by issuing the command: sudo ltsp-update-image
- exit the terminal (shell)
- Startup a thin client, and login
- On the server launch italc master by selecting APPLICATIONS -> SYSTEM -> ITALC
- You should be able to create a classroom (eg LTSP), and add a computer. The IP address should correspond to the IP address of the thin client. To determine the address of the thin client, you can open a terminal (shell) and issue the who command. For example, my first thin client is 192.168.1.20
