I'm cross-posting this both to the edubuntu-users and ubuntu-education
list, because I'm not quite sure where it belongs. Apologies in advance,
and if someone could tell me where it's most appropriate, I'll steer the
threads to that list.
I've just installed a thin client lab in my high school
On Sat, 2007-06-16 at 16:38 -0700, [EMAIL PROTECTED] wrote:
I could use more tutoring on the salient differences between a
diskless thick client and diskless thin client.
A thin client is basically a video device that allows you to see what is
running on a server. With thin clients, all of the
Hey all!
School starts next week for me and I'm wondering if there's an easy way
to turn off the SSH encryption between the thin clients and the server.
The whole lab is on a self-contained network behind the server and I
just don't need the security. I'm hoping that not making the clients do
the
Javier,
Where are you in Ecuador? If one of us were to send you a NIC:
(a) How likely is it that it would get to you?
(b) How much would you have to pay in taxes to accept it?
I spent a semester during college in Quito--lived with a family a few
blocks to the west of the airport just off
I'm seeing the same thing in my lab and it's getting downright annoying.
I keep telling my students that the problem is my inability to correctly
configure everything, but they're starting to think that Windows is less
crash-prone than Linux and I don't want to be responsible for that
perception.
On Thu, 2007-09-13 at 23:03 -0500, Scott Balneaves wrote:
On Thu, Sep 13, 2007 at 10:11:10PM -0400, Todd O'Bryan wrote:
If developers want detailed information, they're going to have to tell
us exactly what they want. :-)
Seriously, though, I didn't really know what you'd need or where to send
Can you try it in Feisty to see if it's a problem that's been fixed in
Gutsy?
On Sat, 2007-09-15 at 20:16 -0500, Scott Balneaves wrote:
On Thu, Sep 13, 2007 at 03:21:22PM -0500, Jim Kronebusch wrote:
Well here I have been trying to figure out how to keep Firefox from
freezing clients,
and
But that doesn't explain the hard freezes a few of us reported when
students pasted several images into Impress even without printing.
On Sun, 2007-09-16 at 22:34 -0500, Jim Kronebusch wrote:
On Sat, 15 Sep 2007 22:48:56 -0400, Todd O'Bryan wrote
Can you try it in Feisty to see if it's
I just found a site tonight which suggests that OpenOffice, like
Firefox, tries to cache pixmaps in the XServer.
http://mille-xterm.org/en/TerminalMemoryUsage
I wish there were one global place where we could turn this off for all
applications.
On Mon, 2007-09-17 at 21:57 -0500, Jim Kronebusch
I guess the thing we really need to do is push for some kind of standard
way of saying how aggressive you want applications to be when they store
pixmaps. Ideally, there should be some way to just tell applications not
to store pixmaps at all, but to just display the pixels.
I had a whole
The Ubuntu release cycle is April October
So which release is a good month for schools in both groups ?
* Comments welcome on this one. *
Let me suggest some slight out of the box thinking...
What if Edubuntu came out just after Ubuntu?
If the Edubuntu release happened at the beginning of
Any progress on the issue of Firefox and OpenOffice trying to cache
images in the thin client memory and then dying that Jim Kronebusch
identified a while ago?
I'm still seeing an awful lot of terminal crashes. During my planning
period today, a student was working on an Impress presentation and,
Does anyone have contacts at OO.o they could mention this to? If we
just had a way to prevent applications from trying to cache stuff in
video RAM that they don't need to, about 80% of my thin client
crashing problems would be solved.
Todd
On Wed, 12 Dec 2007 18:57:35 -0500, Todd O'Bryan wrote
Does anyone know how to make Firefox safe for giving online tests? I'd
like to prevent students from navigating to different sites, going to
different programs, and even from using Copy/Paste while they're
taking a test. I realize this is pretty difficult, because you also
have to prevent the OS
On Jan 8, 2008 5:41 PM, Richard Doyle [EMAIL PROTECTED] wrote:
No replies, so I'll simplify my question:
Has anyone gotten local devices to work on more than one client under
7.10?
I'm using Ubuntu Desktop with the ltsp-server-standalone package
installed and I sadly can't get them to work
On Jan 8, 2008 4:14 AM, Oliver Grawert [EMAIL PROTECTED] wrote:
hi,
On Mo, 2008-01-07 at 20:19 -0500, Todd O'Bryan wrote:
I'm getting an error about port 2000 already being set when I try to
ltsp-update-image. My server is AMD64, but the clients are i386, so I
ran
does it actually say
If the video card in a thin-client could handle OpenGL or MPEG, would the
server send video to the client in a way that would rely on the client's
video card to render it, or would all the video still be figured out by the
server and sent raw to the client?
One of my students pointed out that he
My guess is that most of us don't have extra systems to run the beta
releases on and can't afford to take the chance of having a system go
down when there are 6 or 10 or 30 schoolchildren depending on it. If I
could figure out a way to install a beta on my server and then reboot
if there's a
Here's the setup I'm trying for.
2 servers for running applications
a third server for home folders (mounted over NFS) and LDAP so the
login information is centralized
We've turned off ssh encryption in the lab and noticed a speed
increase when the clients don't have to encrypt/decrypt traffic,
My students often manage to lock up the terminal, usually as a result of the
pixmap bug in Firefox and OpenOffice that has been much discussed. When that
happens, they have to power down and restart the client.
But when they try to log back in, their login stalls, because their old
processes are
anything special to make that setting take, other than
rebooting the terminal?
Thanks!
Todd
On Thu, Aug 28, 2008 at 12:30 PM, Todd O'Bryan [EMAIL PROTECTED] wrote:
My students often manage to lock up the terminal, usually as a result of
the pixmap bug in Firefox and OpenOffice that has been much
, Gavin McCullagh [EMAIL PROTECTED]wrote:
On Fri, 29 Aug 2008, Todd O'Bryan wrote:
As a follow-on to this question, is the XRAMPERC variable that was
available
in Gutsy still available in Hardy? I added a setting to
/var/lib/tftpboot/ltsp/i386/lts.conf, but users could still crash
instead of
teaching.
Am I doing something wrong, or are things far less stable than they should
be?
Todd O'Bryan
duPont Manual High School
Louisville, Kentucky
P.S. I'm considering switching back to the K12LTSP package, just because
it's so rock-solid, but I'd hate to give up the Ubuntu/Debian goodness
On Wed, Sep 10, 2008 at 5:05 AM, David Van Assche [EMAIL PROTECTED]wrote:
I've taken a look into the email in question, and can answer some
questions. I in no way am affiliated with canonical, though I do work
within the ed/ubuntu community. Firstly, Scott mentions not using
8.04, clearly you
Assche
On Wed, Sep 10, 2008 at 1:26 PM, Todd O'Bryan [EMAIL PROTECTED]
wrote:
On Wed, Sep 10, 2008 at 5:05 AM, David Van Assche [EMAIL PROTECTED]
wrote:
I've taken a look into the email in question, and can answer some
questions. I in no way am affiliated with canonical, though I do
On Wed, Sep 10, 2008 at 1:22 PM, Scott Balneaves [EMAIL PROTECTED]wrote:
However, I have a proposition. I have a whole whack of different thin
clients
at home, most I've bought, some I've had donated to me. I *don't* however,
have a DevonIT unit, which seems to be a common sore point with
On Thu, Sep 11, 2008 at 6:37 AM, Oliver Grawert [EMAIL PROTECTED] wrote:
hi,
On Mi, 2008-09-10 at 09:37 -0700, Jordan Mantha wrote:
The reality is that there has
only ever been 1 person paid to work on Edubuntu/LTSP, and in fact
that person has been moved to another project for his paid
They're Devon ITs, 6020P's, I think. With 512MB of memory, they seem to be
doing great.
Todd
On Wed, Sep 17, 2008 at 2:53 PM, john [EMAIL PROTECTED] wrote:
On Mon, Sep 15, 2008 at 2:13 PM, Todd O'Bryan [EMAIL PROTECTED]
wrote:
Thanks. I downloaded version 0.9.2 from Jordan's site
I think this happens occasionally with me, too. The client starts to boot
and then stalls. Restarting solves the problem, so I think it's just a
hiccup, but I haven't investigated to see what exactly is happening or why.
Todd
On Fri, Sep 19, 2008 at 11:50 AM, Luis Montes [EMAIL PROTECTED] wrote:
I'm running Ubuntu 8.04 with the LTSP packages and would like to set
Xfce as the default window manager. If my students click on
Preferences-Select session-startxfce4, they can get Xfce, so all the
packages are there and work, but I've been unsuccessful at making it
the default session.
Here's
You don't say which version of Linux you're using. (Ed)Ubuntu 8.04 (as
well as previous versions, I imagine) has support for Amharic.
Go to System-Administration-Language Support and click on Amharic.
That will download the necessary fonts, dictionaries, etc. You'll need
to be connected to the
-xlib.so.0 and /usr/lib/libxcb.so.1, and the older version
does not.
I'm guessing it has to do with that. I *just* did the Gutsy file copy today
at one school, and it seemed to fix the problem all together with no ill
effects (knocks on wood).
Cheers,
Jordan/Lns
Todd O'Bryan wrote
OK. I tried the workaround and it did indeed fix my Java problems.
Hopefully a fix will appear soon in the real update channel.
On Fri, Nov 14, 2008 at 6:40 PM, Todd O'Bryan [EMAIL PROTECTED] wrote:
Yeah. I just wondered if anyone knew what the XCB bug might be or
whether the XCB devs were
Scratch that. I had ssh'ed to the wrong server. Which could explain why none
of the changes I made did anything. :-/
On Wed, Dec 17, 2008 at 8:04 AM, Todd O'Bryan toddobr...@gmail.com wrote:
Another piece of information. For some reason the update from 8.04 to 8.10
just deleted--completely--my
Sorry for the cross-post, but students are arriving in 15 mins and I'm
desperate.
I updated my two Ubuntu 8.04 servers with LTSP to 8.10 last night. Once they
finished, I copied over my old LTSP images to /opt/ltsp-8.04 and ran
ltsp-build-client from scratch to create a new image.
Now, when I
, Dec 17, 2008 at 7:33 AM, Todd O'Bryan toddobr...@gmail.com wrote:
Sorry for the cross-post, but students are arriving in 15 mins and I'm
desperate.
I updated my two Ubuntu 8.04 servers with LTSP to 8.10 last night. Once
they finished, I copied over my old LTSP images to /opt/ltsp-8.04 and ran
(192.168.202.112)
Any ideas?
Todd
On Thu, Dec 18, 2008 at 9:16 AM, Todd O'Bryan toddobr...@gmail.com wrote:
OK. Still not working. I think I'm going to try a fresh install of 8.10. My
big hesitation in doing that is that I have LDAP and Kerberos authentication
set up and restoring them scares me
SOLVED!
It turns out my problem was already reported, but since I didn't know
which video chipset my clients have, I didn't know what to search for.
https://bugs.launchpad.net/ubuntu/+source/module-init-tools/+bug/208137
So, if your thin clients have VIA CLE266 chipsets--like the Devon IT
NTAVO
working for
authorization and authentication, then I should be able to substitute
Kerberos for the authentication part fairly easily.
Todd
On Fri, Sep 18, 2009 at 1:00 AM, Asmo Koskinen asmo.koski...@arkki.info wrote:
Todd O'Bryan kirjoitti:
Does anyone have a very step-by-step how-to that they can
Hey all,
I'm trying to set up LDAP authentication and I think I'm almost there.
Here's what I get querying for testuser
sysad...@server3:~$ ldapsearch -x uid=testuser
# extended LDIF
#
# LDAPv3
# base dc=dupontmanual,dc=org (default) with scope subtree
# filter: uid=testuser
# requesting: ALL
#
at 9:52 AM, Asmo Koskinen asmo.koski...@arkki.info wrote:
Todd O'Bryan kirjoitti:
I'm trying to set up LDAP authentication and I think I'm almost there.
Can anyone see what's going wrong? Or does anyone know what command
PAM is running to try to id/auth the user so that I could run
new code to get what I did on 9.04 to work on 9.10.
Todd
On Thu, Oct 29, 2009 at 4:16 PM, Asmo Koskinen asmo.koski...@arkki.info wrote:
Todd O'Bryan kirjoitti:
1. It doesn't use the cn=config style configuration within the LDAP
database itself that they're pushing with OpenLDAP 2.4.
Yes
On Fri, Oct 30, 2009 at 3:57 AM, Asmo Koskinen asmo.koski...@arkki.info wrote:
Todd O'Bryan kirjoitti:
Finally, today, I was able to id and su to a user in the LDAP database
who wasn't on the local machine. I'll write up my long, painful saga
and post it somewhere.
Apparently, 9.10 doesn't
Anyone else having a problem using evince on Karmic thin clients? I
didn't have time to get an error printout, but I had to install Xpdf
to get students access to PDFs. Just wondered if it was only me.
Todd
--
edubuntu-users mailing list
edubuntu-users@lists.ubuntu.com
Modify settings or
I think (and I may be completely wrong) that if you include the
interface info in /etc/network/interfaces then network-manager leaves
it alone and expects you to take care of it.
Todd
On Thu, Dec 3, 2009 at 7:52 PM, john lists.j...@gmail.com wrote:
Hi all,
One of my gripes over the last year
This is on Karmic...
I had a single student working in my lab during my planning period and
the Java program he was working on was unbearably slow on his single
client. He moved to the server and it was plenty fast.
Have we reintroduced the bug that got fixed in Jaunty with Java on
remote X or
I have my student home folders on a RAID1 array. One of the hard
drives seems to have become corrupted--I'm getting Buffer IO errors.
Is the hard drive definitely bad so I should get a new one, or should
I try reformatting it and seeing if it works again?
Either way, how do I do that? Is there a
I've noticed CUPS recently not starting so that I have to
$ sudo /etc/init.d/cups start
to get printing to work, but that seems to be different from what
you're experiencing.
Todd
On Thu, Jul 15, 2010 at 7:52 AM, David Hopkins dahopkins...@gmail.com wrote:
I have the latest version of cups
I've been trying to set up LDAP in my lab and it's a huge mess. There
are several currently open LDAP bugs on Ubuntu and the fact that the
default install doesn't include a way to create a database except
completely manually is a huge pain.
If I get everything up and working and reasonably well
On 10.04 I've noticed that gnome-panel often eats up tons of CPU,
especially for people who aren't actually logged in. Slaying those
users solves the problem, but students have to let me know it's
happening.
I haven't seen it happening in the last week or two, so I don't know
if an update fixed
I built a small PC, but it's powerful enough to use with DRBL, not
just thin clients. Here were the parts:
http://www.amazon.com/XION-Desktop-Card-reader-Power-Supply/dp/B003THQS20/ref=sr_1_10?s=electronicsie=UTF8qid=1288911806sr=1-10
I hadn't realized how nice the support for fat clients was in LTSP
until I looked at the docs. Especially in a mixed thin/fat environment
(where you're buying machines to replace thin clients over time), it
seems like this might be the way to go. The one thing I didn't see
right off was how to
fat-clients should work better with less network connectivity, once
they've downloaded the image. They don't need to send video back and
forth over the network constantly. (At least, I think that's right...)
Todd
On Tue, Nov 16, 2010 at 11:52 AM, Jim Christiansen
jim.c.christian...@gmail.com
-11-15 05:22 PM, Todd O'Bryan wrote:
What if the thin clients are i386 and the fat clients are amd64?
You'll have to have separate i386 and amd64 chroots. Typically though,
i386 images are used for both.
Also, I guess I'm not understanding something about how the chroot
works. Do I not install
I just got one of these cases. A MicroATX motherboard fits into it
very snugly, but it's a very nice overall size:
http://www.superbiiz.com/detail.php?name=CA-0526S15title=Evercase-E0526-S15-150W-Mini-ITX-Case-Black
The power supply is above part of the motherboard, so you might want
to try your
I now have a fat client that cost $190 to build running on the same
network as all my thin clients and it is blazingly fast. My students
can't wait for more to come in.
I teach computer programming, so I've had to install a couple of
things that aren't in the package system, and it's a little
get a nice
thin client that uses much less power, but I don't think it would be
as fast, and it might not be much smaller.
Todd
On Tue, Nov 23, 2010 at 10:45 PM, Todd O'Bryan toddobr...@gmail.com wrote:
I just got one of these cases. A MicroATX motherboard fits into it
very snugly, but it's
holding up? How many fatclients are you running
concurently?
kind regards,
David Van Assche
On Tue, Dec 28, 2010 at 4:58 AM, Todd O'Bryan toddobr...@gmail.com wrote:
I've actually had the thing running and my students can't wait until
we get more. The difference in speed between this and a thin
My biggest grief is the number of times I have to slay student
accounts when students have left the lab but forgotten to log out. Is
there an easy way to turn that off for accounts that are logged on
through thin clients, or do I have to go through the whole profile
management system?
Todd
--
-0500, Todd O'Bryan wrote:
My biggest grief is the number of times I have to slay student
accounts when students have left the lab but forgotten to log out. Is
there an easy way to turn that off for accounts that are logged on
through thin clients, or do I have to go through the whole profile
This worked like a charm.
I've added it to the Community Docs page.
On Sat, Feb 5, 2011 at 9:11 PM, Todd O'Bryan toddobr...@gmail.com wrote:
Thanks very much! I'll run this first thing Monday morning.
On Sat, Feb 5, 2011 at 8:32 PM, Marc Gariépy gariepy.m...@gmail.com wrote:
Hello Todd
I can't get CUPS to start on a fat client. This is more complicated,
because I can't sudo to check anything, because once the user logs in
on the fat client, it doesn't use the server's user database anymore.
So, two questions:
1. Does anyone know if CUPS not starting on an AMD64 LTSP fat client
, Todd O'Bryan wrote:
I can't get CUPS to start on a fat client. This is more complicated,
because I can't sudo to check anything, because once the user logs in
on the fat client, it doesn't use the server's user database anymore.
So, two questions:
1. Does anyone know if CUPS not starting
You'll want to download the Ubuntu install CD and install it beside
your Windows XP on the same hard drive. You will then be able to
dual-boot. When you start the computer, it will let you choose either
Ubuntu or Windows XP.
http://www.ubuntu.com/desktop/get-ubuntu/download
Welcome to the
, but at least it can
print.
Todd
On Thu, Mar 10, 2011 at 6:46 PM, Todd O'Bryan toddobr...@gmail.com wrote:
I was able to get root access by doing
$ sudo chroot /opt/ltsp/amd64 passwd -u root
$ sudo chroot /opt/ltsp/amd64 passwd
and setting the password. As I guessed, cups isn't starting
Modify /etc/ltsp/dhcpd.conf so that, based on the MAC addresses of the
clients, they load the image at /opt/ltsp-fat rather than the one at
/opt/ltsp.
If you need more info, I can look at my settings file at school, but
they've blocked my home email, so send me a reminder at Todd dot
OBryan at
I'm using fat clients with 10.04 and it's fairly painless, even with a
lab that's split between fat and thin. I'm going to try upgrading to
11.04 after school gets out (on Thursday, yikes!), but I've been very
pleased with how easy it is to add new packages, upgrade, etc. (I do
wish there were
I've tried setting the PATH variable in my fat client chroot in both
/etc/environment and /etc/profile, but neither of them seem to do
anything. Because I teach programming, students need to run commands
in the terminal.
Any idea how to do this, or why the fat client doesn't pay attention
to
Could any of the developers comment on this or is there a better place to ask?
On Mon, Jul 11, 2011 at 10:38 AM, Todd O'Bryan toddobr...@gmail.com wrote:
I've tried setting the PATH variable in my fat client chroot in both
/etc/environment and /etc/profile, but neither of them seem to do
When I try saving a profile after doing some tweaks to Google Chrome, I get the
A fatal error has occurred. You can help us fix the problem by
sending the log in /etc/sabayon/sabayon-debug-log.conf to
http://bugzilla.gnome.org
error message. Unfortunately, there is no such file. In fact,
to the list. I too will probably be trying to set up
edubuntu menu editor soon, as well. Will share what I find out.
David G
On Mon, Sep 5, 2011 at 9:03 AM, Todd O'Bryan toddobr...@gmail.com wrote:
When I try saving a profile after doing some tweaks to Google Chrome, I
get the
A fatal error has
Hey all,
The journalism department at my school needs a way to keep track of
digital cameras, microphones, video cameras, etc., and asked if I had
any ideas. A library circulation program is probably more than they
need, but they would like to be able to barcode equipment and scan
student ids
I hate Unity. Sorry, but there you have it. Having to dig around to
find programs, not being able to put applets on panels...it's just too
much change! :-)
Anyway, I think I'm going to switch to Kubuntu for my lab. I should be
completely to fat clients within a couple of months, but I was
more common sense, and maintains the Classic desktop.
On Sun, 2011-10-23 at 19:11 +0300, Alkis Georgopoulos wrote:
Στις 23-10-2011, ημέρα Κυρ, και ώρα 12:02 -0400, ο/η Todd O'Bryan
έγραψε:
I hate Unity. Sorry, but there you have it. Having to dig around to
find programs, not being able
Sorry for cross-posting, but I know some people are only on one list...
Does anyone know of a way to lock down a browser in Linux for online
testing? Ideally, I'm imagining a plug-in or something that, when it
accesses a testing site, would make the browser full screen, not allow
the user to open
I've been able to install to my fat clients using the webupd8 ppas. (I
actually have to install both java6 and java7 because of some software
projects my students are working on.) There weren't any gotchas I came
across when I did the install, but that may have just been dumb luck.
I'll try to
or something and can't read from /dev/random
mount --bind /dev /opt/ltsp/i386/dev
mount -t proc none /opt/ltsp/i386/proc
mount -t sysfs none /opt/ltsp/i386/sys
On Tue, Oct 8, 2013 at 9:05 PM, Todd O'Bryan toddobr...@gmail.com wrote:
I've been able to install to my fat clients using the webupd8
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