Thin-client manager not working - UPDATE

Philipp Hanselmann philipp at schoolnet.na
Wed Aug 15 09:10:32 BST 2007


Hi David

This a script which is working for me. These are manual steps, may is 
simple to follow them:

1.) download libxdamage,  x11vnc packages from the packages.ubuntu.com

2.) copy these packages to /opt/ltsp/i386/
cp libxdamage
cp x11vnc*.deb /opt/ltsp/i386
cp libxdamage*.deb /opt/ltsp/i386

3.1) install these packages
chroot /opt/ltsp/i386
dpkg -i libxdamage*.deb
dpkg -i x11vnc*.deb

3.2) close the console and open a new one.

4.) clean up these files
rm /opt/ltsp/i386/libxdamage*.deb
rm /opt/ltsp/i386/x11vnc*.deb

5.) Add this line to /opt/ltsp/i386/etc/rc.local

 x11vnc -display :6 -forever -loop

6.) ensure that  rc.local get started during booting.
mv /opt/ltsp/i386/etc/rc2.d/K99rc.local /opt/ltsp/i386/etc/rc2.d/S99rc.local

After that,  restart the thin clients, now you should be able to see the 
clients in thin client manager.
Like I wrote in a previous email, I decided not use these features, 
because thin client manager is more often freezing than before and also 
I am afraid that these will slow done the network!

Good luck!
Philipp



On Fri, 10 Aug 2007 08:34:19 -0400, wrote David Trask:
 > What file is this in?  Where do I put this?
 >
 >
 > Philipp Hanselmann <philipp at schoolnet.na> writes:
 >> Hi
 >>
 >> I active the vnc support under (feisty) with the following lines.
 >>
 >>
 >> <snip>
 >> LTSP_ROOT='/opt/ltsp/i386'
 >> DO_X11VNC='true'
 >>
 >> if [ $DO_X11VNC == 'true' ] ; then
 >>
 >> echo " * activate screen sharing (x11vnc, needs Thin client
 >> reboot)" # if ! grep "x11vnc" < $LTSP_ROOT/etc/rc.local ; then
 >> echo " * configure x11vnc inside of ltsp i386 root"
 >> cp ${BASEDIR}/snna-settings/libxdamage*.deb $LTSP_ROOT cp
 >> ${BASEDIR}/snna-settings/x11vnc*.deb $LTSP_ROOT
 >>
 >> # install packages
 >> echo '#!/bin/bash
 >> dpkg -i ./libxdamage*.deb > /dev/null && echo "   package
 >> libxdamage installed ..."
 >> dpkg -i ./x11vnc*.deb > /dev/null && echo "   package x11vnc
 >> installed ..."' > $LTSP_ROOT/sbin/configure-ltsp-root chmod 755
 >> $LTSP_ROOT/sbin/configure-ltsp-root chroot $LTSP_ROOT/
 >> /sbin/configure-ltsp-root
 >>
 >> sed '/exit/d' $LTSP_ROOT/etc/rc.local > $LTSP_ROOT/tmp/rc.local
 >> sed '/x11vnc/d' $LTSP_ROOT/tmp/rc.local >
 >> $LTSP_ROOT/etc/rc.local echo "# starting x11vnc x11vnc -display
 >> :6 -forever -loop & exit 0" >> $LTSP_ROOT/etc/rc.local
 >>
 >>
 >> # give execute permissons
 >> if [ -e $LTSP_ROOT/etc/rc2.d/K99rc.local ] ; then
 >> mv $LTSP_ROOT/etc/rc2.d/K99rc.local
 >> $LTSP_ROOT/etc/rc2.d/S99rc.local fi # cleanup files rm -f
 >> $LTSP_ROOT/*.deb
 >>
 >> else
 >> echo " * deactivate screen sharing (x11vnc, needs Thin client
 >> reboot)" # give execute permissons if [ -e
 >> $LTSP_ROOT/etc/rc2.d/S99rc.local ] ; then
 >> mv $LTSP_ROOT/etc/rc2.d/S99rc.local
 >> $LTSP_ROOT/etc/rc2.d/K99rc.local fi fi </snip>
 >>
 >> Even this is working, I noticed, that thin-client manger is now
 >> more often freezing than before, so i decided not to use x11vnc.
 >>
 >> Philipp
 >>
 >>
 >> On Thu, 09 Aug 2007 18:11:20 -0400, wrote David Trask:
 >>> I now have view screen working along with the process viewer,
 >>> message,
 >>> execute, and disconnect.  I'm basically try to get the share
 >>> screen and some of the extras working that I had in
 >>> FL_TeacherTool in K12LTSP. Anyway I'll keep plugging away.  :-)
 >>>
 >>> Richard Doyle <rdoyle at islandnetworks.com> writes:
 >>>> On Tue, 2007-08-07 at 11:22 -0500, Jim Kronebusch wrote:
 >>>>
 >>>>> On Tue, 07 Aug 2007 03:14:19 -0400, David Trask wrote
 >>>>>
 >>>>>> Ok,
 >>>>>>
 >>>>>> Last issue and I'm going home (it's 3 a.m.)  I've just
 >>>>>> finished
 >>>>>>
 >>>> getting 2
 >>>>>> Edubuntu servers up and running....they are in dhcp-load
 >>>>>>
 >>>> balance/failover
 >>>>>> mode (working fine)...clients boot and log in fine,
 >>>>>> however screen blanking, sharing, and monitoring in thin-
 >>>>>> client manager is not
 >>>>>>
 >>>> working.
 >>>>>> Now...one thing to take into consideration...I am running
 >>>>>> Samba/LDAP
 >>>>>>
 >>>> (on
 >>>>>> another box using the smbldap-installer on Ubuntu server
 >>>>>> which I also installed this evening) as my point of
 >>>>>> authentication.
 >>>>>>
 >>>>>>
 >>>>> I can't get the Thin Client Manager (Or is it now Student
 >>>>> Control
 >>>>>
 >>>> Panel) working at all
 >>>>> either.  I can get a list of processes but that is it.
 >>>>> Blanking,
 >>>>>
 >>>> sharing, monitoring
 >>>>> don't work at all.  I like you have tried every possible
 >>>>> fix I could
 >>>>>
 >>>> find with none of
 >>>>> them working.  I can install x11vnc into /opt/ltsp/i386 and
 >>>>> get the
 >>>>>
 >>>> errors to go away,
 >>>>> but still won't work.  I have tried this with single NICs,
 >>>>> teamed NICs,
 >>>>>
 >>>> 32-bit OS,
 >>>>> 64-bit OS, local unix users, ldap users, hopping on one
 >>>>> foot and
 >>>>>
 >>>> patting my head while
 >>>>> trying the above, but nothing works.  In my opinion the
 >>>>> Thin Client
 >>>>>
 >>>> Manager is mostly
 >>>>> worthless without the VNC features working and really need
 >>>>> to be fixed.
 >>>>>
 >>>>> Please let me know if you find anyone with a "working"
 >>>>> solution.  I am
 >>>>>
 >>>> running Edubuntu
 >>>>> Feisty as I am sure you are.
 >>>>>
 >>>> Don't know if I have a working solution, but Execute,
 >>>> Disconnect, Message, Process Viewer and Screen Viewer work
 >>>> here (Blank, Un- Blank and Share Screen don't, but I haven't
 >>>> particularly tried to fix them).
 >>>>
 >>>> This is on Edubuntu Feisty with a single thin client. The
 >>>> only change
 >>>> from the Howto in the wiki (InstallX11VncOnLtspClients) is to
 >>>> add a
 >>>> parameter (-shared) to the x11vnc command in /etc/rc.local.
 >>>>
 >>>> -Richard
 >>>>
 >>>>>
 >>>>> Jim
 >>>>>
 >>>>
 >>>> --
 >>>> edubuntu-users mailing list
 >>>> edubuntu-users at lists.ubuntu.com
 >>>> Modify settings or unsubscribe at:
 >>>> https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
 >>>>
 >>>
 >>> David N. Trask
 >>> Technology Teacher/Director
 >>> Vassalboro Community School
 >>> dtrask at vcsvikings.org
 >>> (207)923-3100
 >>>
 >>>
 >>> --
 >>> edubuntu-users mailing list
 >>> edubuntu-users at lists.ubuntu.com
 >>> Modify settings or unsubscribe at:
 >>> https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
 >>>
 >>




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