LTSP and Audio CD's

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd

_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

GDM does not support XDMCP in Ubuntu 10.04

Am I the only one who's struggled with remote logins in Ubuntu 10.04?

GDM does not support XDMCP

The version of gdm included in Ubuntu 10.04 LTS does not support the
XDMCP protocol for remote graphical logins. Users who require XDMCP
support will need to install another display manager, such as wdm or
xdm, for this functionality. (408417)

https://wiki.ubuntu.com/LucidLynx/ReleaseNotes

The solution, in my case was to:

dpkg-reconfigure gdm
<choose kdm>
dpkg-reconfigure kdm

Sean
-- 
Sean Carte
esAL Library Systems Manager
+27 72 898 8775
+27 31 373 2490
fax: 0866741254
http://esal.dut.ac.za/

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Re: GDM does not support XDMCP in Ubuntu 10.04

On 1 September 2010 08:47, Sean Carte <sean.carte@...> wrote:
> Am I the only one who's struggled with remote logins in Ubuntu 10.04?
>
> GDM does not support XDMCP
>
> The version of gdm included in Ubuntu 10.04 LTS does not support the
> XDMCP protocol for remote graphical logins. Users who require XDMCP
> support will need to install another display manager, such as wdm or
> xdm, for this functionality. (408417)
>
> https://wiki.ubuntu.com/LucidLynx/ReleaseNotes
>
> The solution, in my case was to:
>
> dpkg-reconfigure gdm
> <choose kdm>
> dpkg-reconfigure kdm

Sorry, I take that back. Despite the above information, gdm works fine.

It appears to be my

XSERVER            = auto

in lts.conf that causes a 'GLib-WARNING **: getpwuid_r(): failed due
to unknown user id'

If I remove that line, everything works.

(gdm appeared to be the culprit because when I replaced it with kdm I
also simplified my lts.conf.)

Sean
-- 
Sean Carte
esAL Library Systems Manager
+27 72 898 8775
+27 31 373 2490
fax: 0866741254
http://esal.dut.ac.za/

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

firefox localapp chinese characters

I've just installed firefox in my chroot section for my clients.  I'm 
using Ubuntu 10.04 as my server.  The problem is I have a requirement to 
view Chinese characters on the clients and firefox on the client will 
not show these characters.

The server copy of firefox will.

I've tried installing a heap of fonts in the chroot section with very 
little luck.  Here is what I've installed in the the order I installed them:
# apt-get install xfonts-intl-chinese
# apt-get install xfonts-mathml xfonts-scalable xfonts-terminus
# apt-get install ttf-indic-fonts-core
# apt-get install ttf-arabeyes ttf-bengali-fonts ttf-freefont 
ttf-kannada-fonts ttf-khmeros-core ttf-lyx ttf-mscorefonts-installer 
ttf-oriya-fonts ttf-punjabi-fonts ttf-telugu-fonts ttf-thai-tlwg 
ttf-unfonts-core x-ttcidfont-conf

Some of the chinese characters now work but not all.

# apt-get install latex-xft-fonts lmodern

After each command I rebuilt the image and tested it on a thin client.  
I'm running out of ideas, could anyone give me a hint as to what font or 
configuration I require to display all the Chinese characters in firefox 
running as a localapp?

Michael

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Re: Client unable to login to server

On Thu, Jul 08, 2010 at 02:59:07PM +0200, Krzysztof Paliga wrote:
> SSH seems to ignore clients /etc/ssh/ssh_known_hosts, where the  
> ltsp-update-sshkeys actually puts the keys... I had to copy it to  
> clients /root/.ssh/known_hosts...
Don't know why but it seems that ssh looks for both, the hostname and
the ip-address in /etc/ssh/ssh_known_hosts and
- if only a hostname entry exists issues the warning (see ldm's log on
  the client):
    Permanently added the RSA host key for IP address
    'XXX.XXX.XXX.XXX' to the list of known hosts.
- and if only an ip-address entry exists isssues the error
    The authenticity of host 'hostname (ip-address)' can't be
    established.
    key fingerprint is .................................. .
    Are:  you sure you want to continue connecting (yes/no)?
where ldm's expect wants to see "USER <at> SERVER's password:"

After discovering this, I changed all "hostname ..." entries in
/etc/ssh/ssh_known_hosts to "hostname,ip-address ..." and now it
works.

So I think ltsp-update-sshkeys should always add an
"hostname,ip-address ..." entry if called with
   ltsp-update-sshkeys [-u] hostname
or
   ltsp-update-sshkeys [-u] ip-address

Horst

--

-- 
Horst Prote, FMI            __o   Systemadministration Abt. ALG und TI
Universitaet Stuttgart     `\<,       Tel: +49 711 7816-348, FAX: -310
Universitaetsstr. 38     ( )/( )            prote@...
D-70569 Stuttgart        www.fmi.uni-stuttgart.de/fk/mitarbeiter/prote

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Re: Diagnosing crashes

On Sat, 2010-08-14 at 10:28 +0100, Charles Barnwell wrote:
> I am getting regular system crashes on a number of clients.  I need an
> approach to diagnosing the reason for this.  I sort of suspect
> memory/video memory, and so this is the approach I am planning.

Charles, 
you might try setting your chroot environment to log to the server via
syslog, and then running "cat /proc/meminfo | logger" on a single
machine at regular intervals.  Each run adds 30 lines
to /var/log/messages in my environment, so you probably only want this
to run on a single machine unless you take the time to get every
terminal logging to a different file on the server.

-David

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Re: LTSP and Audio CD's

On Tue, Aug 31, 2010 at 04:27:22PM -0700, Joshua Riffle wrote:
> I'm working with Ubuntu 10.04 as a test only at this point in hopes of creating
> an office environment. My understanding is that an audio CD inserted in a thin
> client will not "mount" because audio CD's are not handled the same way data
> CD's are. Does anyone know a fix or workaround for this issue or if there is
> any fix indicated for future releases? Thanks for your input,

for debian (and probably ubuntu) there's the cdfs-src package, which you can
use to build a kernel module that renders audio CDs as .wav files.
unfortunately, last i tried it (a couple years ago) it was a little unstable.

live well,
  vagrant

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Re: firefox localapp chinese characters

On Thu, Sep 02, 2010 at 11:16:51AM +1000, Michael Pope wrote:
> I've just installed firefox in my chroot section for my clients.  I'm 
> using Ubuntu 10.04 as my server.  The problem is I have a requirement to 
> view Chinese characters on the clients and firefox on the client will 
> not show these characters.
> 
> The server copy of firefox will.

what fonts are installed on the server:

  dpkg -l 'ttf-*'

...

> After each command I rebuilt the image and tested it on a thin client.  
> I'm running out of ideas, could anyone give me a hint as to what font or 
> configuration I require to display all the Chinese characters in firefox 
> running as a localapp?

on debian (and probably ubuntu), i'd try "ttf-arphic-uming". i don't know if
this is a "good" set of characters, it seems to at least generally render most
chinese characters.

live well,
  vagrant

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Everex Cloudbook Client Causes DOS on LTSP Server

I am having an interesting problem in my attempts to use an Everex
Cloudbook as a thin client on an HP Proliant DL380 G4 server running
Fedora 13.

I am able to PXE-boot the Cloudbook client to the login screen, but when
I login, things work for a few seconds and then I am returned to the
login screen.  Further below are the messages that appear
in /var/log/messages and /var/log/secure, so you can see that this is
not a problem with a bad password or anything like that.

Unfortunately, the problem gets worse.  Here is the output from top
several minutes later:

top - 13:22:54 up 21 days, 20:13,  5 users,  load average: 1.18, 1.22,
1.50
Tasks: 264 total,   2 running, 262 sleeping,   0 stopped,   0 zombie
Cpu(s): 25.2%us,  0.4%sy,  0.0%ni, 74.2%id,  0.0%wa,  0.2%hi,  0.0%si,
0.0%st
Mem:   3992012k total,  3403988k used,   588024k free,   315780k buffers
Swap:  3145720k total,    91784k used,  3053936k free,  1666660k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
31044 scott     20   0  317m  14m 9904 R 100.2  0.4   2:28.8 gnome-panel
31456 root      20   0 15096 1296  876 R  1.0  0.0   0:00.06 top
29761 root      20   0  226m 8172 5496 S  0.7  0.2   0:02.14 parcellite
31350 root      20   0  601m  64m  25m S  0.7  1.6   0:07.53 firefox
 2477 asterisk  20   0 2491m 6312 2724 S  0.3  0.2  24:54.28 asterisk

And after four attempts to login:

top - 13:28:18 up 21 days, 20:18,  2 users,  load average: 5.17, 2.38,
1.80
Tasks: 266 total,   5 running, 261 sleeping,   0 stopped,   0 zombie
Cpu(s): 97.0%us,  1.9%sy,  0.0%ni,  0.0%id,  0.0%wa,  1.0%hi,  0.1%si,
0.0%st
Mem:   3992012k total,  3523148k used,   468864k free,   316240k buffers
Swap:  3145720k total,    91324k used,  3054396k free,  1671780k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  691 scott     20   0  317m  14m 9988 R 95.8  0.4   0:22.36 gnome-panel
32736 scott     20   0  317m  14m 9.9m R 95.2  0.4   0:45.11 gnome-panel
31044 scott     20   0  317m  14m 9904 R 78.1  0.4   7:41.41 gnome-panel
31784 scott     20   0  316m  14m 9748 R 76.5  0.4   1:05.66 gnome-panel
  754 root      20   0  361m 128m 8496 S 12.1  3.3   0:17.13
setroubleshootd
 2805 root      20   0  124m  736  400 S  1.3  0.0 139:14.32 hpasmd
32404 root      20   0  226m 8064 5376 S  0.7  0.2   0:00.39 parcellite
32619 root      20   0 15096 1304  876 R  0.7  0.0   0:01.11 top
    1 root      20   0 19228  500  292 S  0.0  0.0   0:59.54 init

And it will keep adding gnome-panel processes running flat out each time
I attempt to login.  I can bring this server to a crawl and get the fans
running at top speed just by attempting to login 20 or 30 times from the
CloudBook.

One note.  The first time I logged in, it worked fine.  Then I plugged
in an external monitor and had this problem.  Now the problem occurs
with our without the monitor plugged in.

Any help would be greatly appreciated.

/var/log/messages

Sep  3 13:20:24 www gnome-session[30935]: WARNING: Unable to determine
session: Unable to lookup session information for process '30935'
Sep  3 13:20:25 www gnome-keyring-daemon[31031]: dbus failure
unregistering from session: Connection is closed
Sep  3 13:20:25 www gnome-keyring-daemon[31031]: dbus failure
unregistering from session: Connection is closed
Sep  3 13:20:26 www python: abrt: detected unhandled Python exception
in /usr/share/system-config-printer/applet.py
Sep  3 13:20:26 www python: hp-systray(hpssd)[31167]: error: Unable to
connect to dbus session bus. Exiting.
Sep  3 13:20:26 www abrtd: dumpsocket: New client connected
Sep  3 13:20:26 www abrtd: dumpsocket: Saved Python crash dump of pid
31113 to /var/spool/abrt/pyhook-1283538026-31113
Sep  3 13:20:26 www abrtd: dumpsocket: Socket client disconnected
Sep  3 13:20:26 www abrtd: Directory 'pyhook-1283538026-31113' creation
detected
Sep  3 13:20:27 www abrtd: Crash is in database already (dup
of /var/spool/abrt/pyhook-1283536948-27236)
Sep  3 13:20:27 www abrtd: Deleting crash pyhook-1283538026-31113 (dup
of pyhook-1283536948-27236), sending dbus signal

/var/log/secure

Sep  3 13:20:13 www sshd[30911]: Accepted password for scott    from
192.168.1.83 port 58127 ssh2
Sep  3 13:20:13 www sshd[30911]: pam_unix(sshd:session): session opened
for user scott    by (uid=0)
Sep  3 13:20:23 www sshd[30915]: subsystem request for sftp
Sep  3 13:20:25 www sshd[30915]: Received disconnect from 192.168.1.83:
11: disconnected by user
Sep  3 13:20:25 www sshd[30911]: pam_unix(sshd:session): session closed
for user scott   

--

-- 
P. Scott DeVos
Member
4A Homes LLC

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net

Re: firefox localapp chinese characters

ttf-arphic-uming was it, thank you vagrant.

Michael Pope

On 04/09/10 04:07, Vagrant Cascadian wrote:
> On Thu, Sep 02, 2010 at 11:16:51AM +1000, Michael Pope wrote:
>    
>> I've just installed firefox in my chroot section for my clients.  I'm
>> using Ubuntu 10.04 as my server.  The problem is I have a requirement to
>> view Chinese characters on the clients and firefox on the client will
>> not show these characters.
>>
>> The server copy of firefox will.
>>      
> what fonts are installed on the server:
>
>    dpkg -l 'ttf-*'
>
> ...
>
>    
>> After each command I rebuilt the image and tested it on a thin client.
>> I'm running out of ideas, could anyone give me a hint as to what font or
>> configuration I require to display all the Chinese characters in firefox
>> running as a localapp?
>>      
> on debian (and probably ubuntu), i'd try "ttf-arphic-uming". i don't know if
> this is a "good" set of characters, it seems to at least generally render most
> chinese characters.
>
> live well,
>    vagrant
>
> ------------------------------------------------------------------------------
> This SF.net Dev2Dev email is sponsored by:
>
> Show off your parallel programming skills.
> Enter the Intel(R) Threading Challenge 2010.
> http://p.sf.net/sfu/intel-thread-sfd
> _____________________________________________________________________
> Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
>        https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
> For additional LTSP help,   try #ltsp channel on irc.freenode.net
>
> .
>
>    

------------------------------------------------------------------------------
This SF.net Dev2Dev email is sponsored by:

Show off your parallel programming skills.
Enter the Intel(R) Threading Challenge 2010.
http://p.sf.net/sfu/intel-thread-sfd
_____________________________________________________________________
Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
      https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
For additional LTSP help,   try #ltsp channel on irc.freenode.net