Problems with Edubuntu thin client setup in school...- solved
Leena
leena at itforchange.net
Fri Jul 22 08:45:59 UTC 2011
> Hi all,
>
> sometime back I had posted my query regarding thin-clinet set up in
> govt school in India using HCL server and winbee O.S. for clients.
> We have got it to work using Edubuntu 11.04 which comes with LTSP.
>
> Just wanted to share details so anybody facing similar issues can
> benefit from our learnings.
>
> After installation of Edubuntu 11.04 on server we did make changes to
> configuration file as per details in my prev. mail (can be found below).
>
> In client machines while adding new connection thr' Winbee connection
> manager window, we had to enable 'DHCP' which was available on tab
> called 'update' and enter server IP there. That's it and it all worked
> like a charm.
>
> Thanks for your support and comments.
>
> Now we have one small issue. and trying to see if anybody knows
> solution for it.
> We have one server and 10 thin clients, for each client machine we
> created user as user1,user2 and so on. All these users show up at
> log-in screen in client machines from where you can click on user
> enter password and it will let you log-in. Is there anyway to restrict
> login to show only one user per computer?
>
> Much thanks,
> Leena
>
>
> On Monday 20 June 2011 04:34 PM, Leena wrote:
>> Thanks Jeff,
>>
>> We have two network interfaces eth0 and 1,
>>
>> Moreover would like to use Edubuntu 11.04 as it comes with many
>> educational software. When I tried installing Edubuntu 11.04 it took
>> lot of time without success.
>> Server already have Windows 2003 , Red Hat
>> and while installing Edubuntu, (had to use manual partitioning as
>> earier EDubuntu 10.04 was there) it got stuck at step where it kept
>> saying "removing conflicting files ...." and was at that for 40-45
>> mins. I had to reboot and installed 10.04 then.
>> Does Ebubuntu 11.04 takes this long for installation and
>> partitioning? Did I miss anything?
>>
>> Thanks,
>> Leena
>>
>>
>> On Saturday 18 June 2011 04:13 PM, Jeff wrote:
>>> On 18 Jun 2011, at 5:15 AM, Leena wrote:
>>>
>>>> Hi,
>>>>
>>>> We are trying to setup Edubuntu 10.04 in school and get image on
>>>> thin client machines. Edubuntu installation on server and LTSP
>>>> installation goes fine.
>>>> When try to connect client machines doesn't go beyond connection
>>>> window and shows blank screen. Details of the setup and hardware
>>>> and changes we have done so far are listed below......sorry it's a
>>>> long mail.....this issue is very urgent for us and hoping that
>>>> someone would have done similar setup or have come across similar
>>>> issues might able to help us....
>>>> our customized
>>>> questions: After the setup on server, as for client machines we are
>>>> unable to receive response when we ping clients IP from server
>>>> (client machine, server and hub are on).How to check if dhcp is
>>>> running?
>>>
>>>
>>> ps -A | grep dhcp
>>>
>>>
>>>> on most documentations on net I have read for thin
>>>> client setup they change network/interfaces file and connection to
>>>> 'STATIC' instead of
>>>> 'dynamic' is it required?
>>>>
>>>> *_Details:
>>>>
>>>> _*_*Hardware used:*_
>>>> Server-HCL computer-2GB RAM, 160GB Hard disk, two network cards
>>>> Clients: connected to 10 Thin Clients connected to server on LAN,
>>>> no Internet connection here. Client machines has connection
>>>> window-Winbee connection manager for login.
>>>>
>>>> _*What we did so far:*_
>>>> Installed Edubuntu 10.04 on server. After it was over when the
>>>> pop-up appears for restart now or continue testing (to install LTSP).
>>>> At that we clicked on 'Continue Testing'- as we wanted to install
>>>> LTSP (Linux Terminal Server)
>>>> For network connection eth0 was shown as used, so we selected-eth1
>>>> here.
>>>
>>>
>>> How many network interfaces do you have?
>>>
>>> I noticed when I installed 11.04 last week (for the first time) that
>>> it defaulted to eth1. I knew that I only had one interface, so I set
>>> it to eth0 and everything went better than expected. :)
>>>
>>>
>>>> after LTSP was configured we did reboot computer, and made couple
>>>> of changes to config files as follows
>>>> _/Enabled the XDMCP Server/ by_ (using N-XDMCP connection type on clients for connection)
>>>> *copied usr/share/custom.conf file to /etc/gdm/custom.conf and added below lines below [xdmcp] option.*
>>>> [xdmcp]
>>>> Enable=true
>>>> DisplaysPerHost=2
>>>>
>>>> [chooser]
>>>>
>>>> [security]
>>>>
>>>> [debug]
>>>> *Restart GDM*
>>>>
>>>> Then edited our interfaces file: /etc/network/interfaces to following
>>>> auto lo
>>>> iface lo inet loopback
>>>>
>>>> auto eth1
>>>> iface eth1 inet static
>>>> address 192.168.0.254
>>>> netmask 255.255.255.0
>>>> broadcast 192.168.0.255
>>>> _
>>>> and finally the /etc/ltsp/dhcpd.conf_ dhcpd.conf file to following
>>>> #
>>>> # Default LTSP dhcpd.conf config file.
>>>> #
>>>>
>>>> authoritative;
>>>>
>>>> subnet 192.168.0.0 netmask 255.255.255.0 {
>>>> range 192.168.0.20 192.168.0.250;
>>>> option domain-name "example.com";
>>>> option domain-name-servers 192.168.0.1;
>>>> option broadcast-address 192.168.0.255;
>>>> option routers 192.168.0.254;
>>>> # next-server 192.168.0.1;
>>>> # get-lease-hostnames true;
>>>> option subnet-mask 255.255.255.0;
>>>> option root-path "/opt/ltsp/i386";
>>>> if substring( option vendor-class-identifier, 0, 9 ) =
>>>> "PXEClient" {
>>>> filename "ltsp/i386/pxelinux.0";
>>>> } else {
>>>> filename "ltsp/i386/nbi.img";
>>>> }
>>>> }
>>>>
>>>> rebooted the server.
>>>> and in client machines, added connection at 'Winbee connection
>>>> Manager'- (HCL client comes with these)
>>>>
>>>>
>>>> /Configuring/Setting up HCL Winbees-4000BVX Thin Clients/
>>>>
>>>> for new OS connection, add connection.on top there are two options,
>>>> 1. configuration
>>>> Name:connection name here (EDubuntu)
>>>> Type:*N-XDMCP* click-ok
>>>>
>>>> o
>>>>
>>>> Description →*Edubuntu*
>>>>
>>>> o
>>>>
>>>> Mode →*Direct*
>>>>
>>>> o
>>>>
>>>> Server Name →*192.168.0.254*
>>>>
>>>> o
>>>>
>>>> XDMCP on →*Second Console*
>>>>
>>>> 2. connection:click on setup to add Network to check ip address for
>>>> client
>>>> save. and reboot clients.
>>>>
>>>> After rebooting client machine, when I select my newly added
>>>> 'Edubutu' connection and click 'connect'. It shows blank screen
>>>> with white mouse cross mark.
>>>>
>>>> The link here:http://www.edubuntu.org/documentation/ltsp-live- at
>>>> the very bottom of page says " you simply have to set the connected
>>>> workstations to boot from the network. by going into BIOS". we
>>>> haven't done that as hcl clients has Winbee manager to go thr'
>>>> connection process. Not sure if we should have really.
>>>>
>>>> Can anybody give any clues to what might have gone wrong?
>>>>
>>>> Thanks,
>>>>
>>>> --*Leena Mulye*
>>>>
>>>> Technical Project Associate
>>>> IT for Change
>>>> In special consultative status with the United Nations ECOSOC
>>>> www.ITforChange.net <http://www.ITforChange.net/>
>>>> Tel:+91-80-2665 4134, 2653 6890. Fax:+91-80-4146 1055
>>>> Have you heard about the free and open source
>>>> softwareVisithttp://www.public-software.in/<http://www.public-software.in/>
>>>>
>>>> <itfc_logo.png>
>>>>
>>>> --
>>>> ubuntu-education mailing list
>>>> ubuntu-education at lists.ubuntu.com
>>>> <mailto:ubuntu-education at lists.ubuntu.com>
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>>>> at:https://lists.ubuntu.com/mailman/listinfo/ubuntu-education
>>>
>>> --
>>> Jeff Brown
>>>
>>> Tel:+27-74-101 5170
>>> Fax:+27-86-532 3508
>>> www.wildcoast.co.za <http://www.wildcoast.co.za/>
>>>
>>>
>>>
>>
>> --
>>
>> -- *Leena Mulye*
>>
>> Technical Project Associate
>> IT for Change
>> In special consultative status with the United Nations ECOSOC
>> www.ITforChange.net <http://www.ITforChange.net/>
>> Tel:+91-80-2665 4134, 2653 6890. Fax:+91-80-4146 1055
>> Have you heard about the free and open source softwareVisit
>> http://www.public-software.in/<http://www.public-software.in/>
>>
>>
>>
>
> --
>
> -- *Leena Mulye*
>
> Technical Project Associate
> IT for Change
> In special consultative status with the United Nations ECOSOC
> www.ITforChange.net <http://www.ITforChange.net/>
> Tel:+91-80-2665 4134, 2653 6890. Fax:+91-80-4146 1055
> Have you heard about the free and open source softwareVisit
> http://www.public-software.in/<http://www.public-software.in/>
>
>
>
--
-- *Leena Mulye*
Technical Project Associate
IT for Change
In special consultative status with the United Nations ECOSOC
www.ITforChange.net <http://www.ITforChange.net/>
Tel:+91-80-2665 4134, 2653 6890. Fax:+91-80-4146 1055
Have you heard about the free and open source softwareVisit
http://www.public-software.in/<http://www.public-software.in/>
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