Re: [Ltsp-discuss] DHCP load balancing w/ DHCP proxy?
On 06/09/2010 02:16 AM, Xavier Brochard wrote: You can also let the thin-client decide on which server it will boot. A server with a lot of load will answer later than the one with less Another possibility: at ldm login, users can be presented a list of servers. Then they choose on which server they login. Thanks for the suggestions. How well does it work to use the server's response delay for load balancing? The simplicity is appealing, but it sounds a bit haphazard. Some terminal users here get confused enough as it is, so I don't want to present them with more choices they don't understand. :) -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _ 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
[Ltsp-discuss] DHCP load balancing w/ DHCP proxy?
I'm looking at expanding my LTSP installation with another server (I already have /home, LDAP authentication, and CUPS offloaded onto another server). It appears that the primary options at the moment are load balancing across a pair of DHCP servers or moving to ltsp-cluster is that correct? The tricky part is that I don't control the enterprise DHCP so will need to use a DHCP proxy and it doesn't look like dnsmasq will do load balancing. Ltsp-cluster sounds like the only way to go, does that sound right? Thanks for any comments. -Steve -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _ 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-discuss] Advice needed: How do I exempt 1 TC from chrooted cron job?
On 05/28/2010 12:59 PM, john wrote: Hi all, I have a setup a cronjob that shuts down our schools thin clients at the same time every day. I followed https://help.ubuntu.com/community/UbuntuLTSP/ChrootCronjobs and https://help.ubuntu.com/community/UbuntuLTSP/AutomatedTCShutodwn In general the approach works well enough however I have an ASUS eeebox 8202 that doesn't properly shutdown when cron executes CRONTAB_01 = * 16 * * 1-5 /sbin/shutdown -P now from /var/lib/tftpboot/ltsp/i386/lts.conf I'd like to make an exemption in the lts.conf file for this unit so that it doesn't execute this cron job (e.g. It'll just stay on) but I am not sure how to proceed. Could anyone give me a nudge? Why not just write your own script? CRONTAB_01 = * 16 * * 1-5 /usr/local/bin/my_shutdown where my_shutdown: #! /bin/sh if [ `hostname` != 'asus_hostname' ] ; then /sbin/shutdown -P now ; fi (note backticks around hostname, but quotes around asus_hostname) or, given how short the script is you could just shove the whole thing in your crontab line. -Steve -- _ 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-discuss] recommend a disk setup for LTSP install?
john wrote: Hi all, I have come to the conclusion that my single 7k sata disk is too slow to serve 25 plus LTSP thin clients. I see high disk writes accompanied by high CPU wait time. My mobo supports SAS. I am wondering what the optimal disk setup is with regard to speed. Can I get away with a single 10-15K SAS drive or should I be looking to setup raid 5, 6, or 10? How about two disks, a sata for the OS and a fast SAS for /home/ /tmp ? I'd appreciate some advice! Thanks! John I have the main filesystem on 10k SATA drives in a RAID1 array with /home accessed via NFS from another machine residing on 7k SATA drives in a RAID 10 array. Seems to work pretty well, the bottleneck seems to be the processors now. That's with 70 clients, but only maybe 20 - 30 in use at the same time. -Steve -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _ 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-discuss] LTSP server poisoning to chroot
Antoine Rodriguez wrote: Hi, I'm a beginner in LTSP. I'm using ubuntu 9.10 alternative with LTSP Mode Everything works fine but : How do I avoid having the server applications installed on my client chroot environment ? For instance : I install italc-master on my server and only italc-client in the chroot. When I connect with the thin client I have italc-master that show up on the gnome menu. How do I avoid this ? (even if this means more efforts to get it work) It's confusing at first, but keep in mind that (unless you're using local apps) all of the user's environment including applications, files, and the menus are all on the server. When you login at a thin client you're not logging in to the client itself, you're logging in to the server through the client. Think of the client as just providing a window to get to the server. So, since you have italc-master installed on the server you will naturally see it in the Gnome menu. -Steve -- SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _ 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-discuss] Red Hat Enterprise Virtualization for Desktops vs LTSP?
Sounds like there are a couple other ways to go. For my installation I wrote a wrapper script around the cpulimit command. More info here if you want it: http://blog.lib.umn.edu/cayfo001/blogorama/212547.html -Steve -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _ 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-discuss] Pulseaudio dies on thin clients
Jakob Unterwurzacher wrote: [...] Sorry, i missed that pulseaudio actually gives you a helpful error message: Oct 29 16:09:02 ltsp-client pulseaudio[3071]: rtpoll.c: Assertion 'usec = ((pa_usec_t) 100ULL)*60ULL*60ULL' failed at pulsecore/rtpoll.c:516, function pa_rtpoll_set_timer_relative(). Aborting. I don't think a backtrace will give additional info, then. Did you start a bug report anywhere? Not sure if this should go with ubuntu or pulseaudio. -- Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _ 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
[Ltsp-discuss] Pulseaudio dies on thin clients
I've been losing the audio on thin clients lately. I'm not sure when this started, either when I upgraded to Jaunty or sometime since then. Audio was definitely working with earlier versions. After initially booting up a client I can usually log in and audio will work for a little while. I'm testing this with the Beep media player and I may get a minute or so of an mp3. Then the pulseaudio server on the client appears to die. I have to reboot the client to get audio again. Server is Ubuntu 9.04 32 bit. Client is an HP ePC40. lspci on the client shows this: --- :00:00.0 Host bridge: Intel Corp. 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 02) :00:02.0 VGA compatible controller: Intel Corp. 82815 CGC [Chipset Graphics Controller] (rev 02) :00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI Bridge (rev 05) :00:1f.0 ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 05) :00:1f.1 IDE interface: Intel Corp. 82801BA IDE U100 (rev 05) :00:1f.2 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 05) :00:1f.3 SMBus: Intel Corp. 82801BA/BAM SMBus (rev 05) :00:1f.4 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 05) :00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio (rev 05) :01:08.0 Ethernet controller: Intel Corp. 82801BA/BAM/CA/CAM Ethernet Controller (rev 03) --- The client log shows this before the crash: --- Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-source.c: Increasing minimal latency to 256.00 ms Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-sink.c: Increasing minimal latency to 32.00 ms Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-source.c: Increasing wakeup watermark to 235.96 ms Oct 29 16:08:14 ltsp-client pulseaudio[3071]: module-alsa-source.c: Increasing wakeup watermark to 245.99 ms Oct 29 16:08:15 ltsp-client pulseaudio[3071]: module-alsa-source.c: Increasing minimal latency to 371.52 ms Oct 29 16:08:15 ltsp-client pulseaudio[3071]: module-alsa-source.c: Increasing wakeup watermark to 361.50 ms Oct 29 16:08:16 ltsp-client pulseaudio[3071]: module-alsa-sink.c: Increasing wakeup watermark to 20.00 ms Oct 29 16:09:02 ltsp-client pulseaudio[3071]: module-alsa-sink.c: Increasing wakeup watermark to 22.00 ms Oct 29 16:09:02 ltsp-client pulseaudio[3071]: module-alsa-sink.c: Increasing minimal latency to 64.00 ms Oct 29 16:09:02 ltsp-client pulseaudio[3071]: rtpoll.c: Assertion 'usec = ((pa_usec_t) 100ULL)*60ULL*60ULL' failed at pulsecore/rtpoll.c:516, function pa_rtpoll_set_timer_relative(). Aborting. --- I also see these messages occasionally in the logs, but they don't seem to correlate with the crashes. --- Oct 29 16:02:49 ltsp-client pulseaudio[3071]: x11wrap.c: XOpenDisplay() failed Oct 29 16:02:49 ltsp-client pulseaudio[3071]: module.c: Failed to load module module-x11-publish (argument: display=134.84.21.209:7): initialization failed. --- Any suggestions are welcome. -Steve -- Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _ 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-discuss] logging into tc using ssh keys
David Burgess wrote: I'm trying to use parallel-ssh to poll my tc for update and other such things one might want to do via ssh on a running tc. I followed the guide here: http://www.debian-administration.org/articles/530 placing the generated id_rsa.pub into /opt/ltsp/i386/root/.ssh/authorized_keys/ on the server. I uncommented the line Just to be clear, you have a file authorized_keys with the public key in it right? It sounds like you put the id_rsa.pub file into an authorized_keys directory which would be wrong. AuthorizedKeysFile %h/.ssh/authorized_keys then rebuilt the image (also tried replacing %h above with /root). After rebooting a test tc, I can see the file in /root/.ssh/authorized_keys, but I still get a password challenge when trying to ssh in. If I enter a blank password I am unable to connect. To block password authentication make sure the /opt/ltsp/i386/etc/ssh/sshd_config file contains the entries: PermitRootLogin without-password PasswordAuthentication no Is there a better way of doing this? It works pretty well for me. -Steve -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf _ 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-discuss] logging into tc using ssh keys
David Burgess wrote: On Fri, Oct 2, 2009 at 1:24 PM, Steve Cayford cayfo...@umn.edu wrote: Just to be clear, you have a file authorized_keys with the public key in it right? It sounds like you put the id_rsa.pub file into an authorized_keys directory which would be wrong. That should have been obvious. Must be Friday! Thanks for the help, it's working great now. Sweet. -Steve -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf _ 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
[Ltsp-discuss] Reading lts.conf settings on client
This is probably one of those doh questions. If I set up a custom rc script to run on the client at boot time is there an easy way to read the settings from dhcp and the lts.conf file? e.g. Say I want to get the list of server IP's. It seems like there must be some sort of API or environment settings, but I don't know what they are. Thanks. -Steve -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf _ 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-discuss] Reading lts.conf settings on client
Jakob Unterwurzacher wrote: Steve Cayford schrieb: This is probably one of those doh questions. If I set up a custom rc script to run on the client at boot time is there an easy way to read the settings from dhcp and the lts.conf file? e.g. Say I want to get the list of server IP's. It seems like there must be some sort of API or environment settings, but I don't know what they are. Thanks. For reading lts.conf there is getltscfg . For the server IP /usr/share/ltsp/ltsp_config looks promising (this will also read lts.conf into environment variables AFAIS). Regards, Jakob That's what I was looking for. Thank you. -Steve -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf _ 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-discuss] Cleaning up Processes - My Solution
Keith wrote: Hi there LTSPers, We run an ubuntu 8.10 / LTSP 5.0 classroom at our school. We have a quad-core server with 8G RAM and 26 clients. Gigabyte switches. So, on paper, it should cope with ease When the classes logout hundreds of processes are left open. So by trial and error I have come up with the following script (very simplistic and elementary but what the heck, it works!!) When I check htop: the 4 processors are down to nearly zero (0,6%, 0,6%, 0% and 0%) and the Mem is down to around 350/8094. Nice and clean. If anyone has a more efficient method let me know! I wrote a little perl daemon for my system that watches for logins and logouts and cleans up the remaining processes. I've heard recommendations for gnome-watchdog, but since I started out with xfce instead of gnome I went this route instead. Earlier versions of LTSP5 wouldn't show users in the normal log files, so this keeps a log of that as well. There are probably more efficient ways to do this, but it works so far. -Steve ltsp_login_tracker.tgz Description: application/compressed-tar -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july_ 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-discuss] Hide processes of other users
Rob Owens wrote: On Wed, Jun 03, 2009 at 05:09:31PM +0200, Wojtek Polcwiartek wrote: Hallo, does anyone know how to hide running processes of other users? I'm not sure if it would break anything, but you could change the permissions/ownership of 'ps' so that only root (or a particular group of users) can execute it. Seems like for this approach you'd also have to restrict other utilities like top and its variants, tools like w, and block access to the /proc filesystem (which probably would break things). -Steve -- OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _ 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-discuss] Single user account and pam mount
mar...@flage.org wrote: Scott Balneaves wrote: All this having been said, I suspect that either pam-mount, or, probably more succinctly, pam-script (since you'd really want to do more that just mount: you also want to create the tmp area, etc.) would probably be the way to go. pam-script can be found at: http://sourceforge.net/projects/pam-script/ Yeah, it's pam mount I'm using for the fat clients. But my problem now is exactly the creation of the tmp area. Since I don't want the thin clients to have hard drives and I don't want to create a tmpfs for this usage, I have to create directories on the server to be used for the tmp area. So then I need a little script to create the tmp area based on ip or something. But is this at all possible? And if I want to do this in a LTSP area, where should I put the pam stuff? In the chroot for the thin clients or on the server? Can you provide some framework examples for how this can be accomplished in practice? Unless you're running local applications on the thin clients, all the authentication stuff happens on the server. There wouldn't seem to be any point to putting anything in the chroot. -Steve -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _ 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-discuss] logged in terminal hangs server display
Bob Wooden wrote: I see that I have not provided enough information for any good suggestions. Sorry about that. What I have discovered is that when the Ubuntu default screensaver is enabled, the server display will hang when the terminal is left logged in. When I disable the screensaver all is fine. (So far.) So, simple enough, do not enable the screensaver! However, I could be wrong but, enabling the screensaver should not make a difference. End of story. Thanks Linux community and thanks for LTSP. You're not both logging in with the same credentials or anything like that are you? Or is this without even being logged into the server display? -Steve -- _ 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-discuss] Content Filter Logging in LTSP
Kai Wollweber wrote: [...] I never used this before, but you can configure squid (squid.conf) that users need to authenticate before using squid. Authentification can be managed by identd or by manual login. Yes, look into using ident to get the username. This would query a small process that runs on the LTSP server to tell the squid proxy which user has that connection open. This is invisible to the end-user, they don't have to login to the proxy or anything like that. You could also write your own ident daemon to return whatever you want, such as the name or IP address of the thin client the user is sitting at. -Steve -- Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _ 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-discuss] USB flash drives are visible to everyone
John Hansen wrote:
We recently upgraded to Hardy, and after updating the chroot, USB drives are
mounting successfully. However, now anyone logged onto a thin client can see
other users USB sticks mounted on their desktops. Only the user of that USB
stick can read the device, but it appears on everyones desktop that is logged
in.
I ran into that as well. It's documented here:
https://bugs.launchpad.net/ubuntu/+bug/210379
In my case users are authenticated via LDAP which serves double duty for a
Samba domain which wants every one in the Domain Users as their primary
group. Rather than try to change the group structure I turned off the
volume-icons-on-the-desktop feature and put a Drives link on each user's
desktop to /media/{username}. Not as nifty, but it works.
-Steve
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Re: [Ltsp-discuss] Locking Firefox proxy and other settings
Timothy Legge wrote: Hi I have updated a script that automatically sets and locks Firefox proxy and other settings. See http://timlegge.blogspot.com/2009/01/lock-firefox-proxy-and-other-settings.html for the details and a link to the script. I have tested it on Ubuntu 8.10. The script shows the details of what it is doing and can be reversed pretty simply. As this topic comes up occasionally, I hope this helps someone. If you notice issues let me know and I will see what I can do... Thanks. I was just trying to figure this out yesterday. I'll try your script on Monday. -Steve -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _ 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-discuss] /opt/ltsp/i386/boot and /var/lib/tftpboot/ltsp/i386
Slawek Drabot wrote: the directories /opt/ltsp/i386/boot and /var/lib/tftpboot/ltsp/i386 contain the same files when changing any of the files, do all the files need to be synchronized? I think you can consider /opt/ltsp/i386 a staging area for what will eventually end up in /var/lib/tftpboot/ltsp/i386 and /opt/ltsp/images/ -Steve -- _ 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-discuss] Some issues with Ubuntu 8.04
Timothy Legge wrote: [...] 1) Reboot of the sometimes requires a reboot of the clients it looks like nbd loses the connection 2) Stray user process stay running 3) Java sometimes takes 100% CPU 4) FireFox crashes more often than I would like 5) It sometimes works fine for 10 minutes or so but grinds to a halt Has anyone worked around these sort of issue? Should I simply move up to 8.10? Also, when I used K12LTSP in the past, I believe some applications were automatically niced to avoid issues like this. Has anyone done that with Ubuntu? Tim Installing nspluginwrapper seemed to help with firefox crashing. Now if the flash plugin crashes we just get a gray box instead of having it take down the browser. I wrote a script to watch for programs hogging the cpu and then throttle them using cpulimit. Could probably renice them instead, but this seems to work. I installed cpulimit, then edited rc.local to start this attached cpu_governor script. Any comments welcome. -Steve cpu_governor.gz Description: GNU Zip compressed data -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/_ 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-discuss] quick ltsp-update-image question
Helmut Lichtenberg wrote: David Burgess schrieb am 04. Dec 2008 um 01:13:46 CET: On Wed, Dec 3, 2008 at 3:42 PM, Steve Cayford [EMAIL PROTECTED] wrote: In short clients are not booted off. They continue to use the old image until the client gets rebooted. Thus has been my experience. This is also my experience, but does it mean, the client stores the whole image in memory? Why does it keep an nbd-connection then? Or is it in server memory? When my clients have several weeks of uptime and I generate lots of updated images, will all image generations fill the server ram? My understanding is that although the original image file is deleted, the space on disk is not released until the nbd-server process closes the file handle. So the image is on disk on the server, not in RAM. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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
[Ltsp-discuss] quick ltsp-update-image question
I don't see this noted anywhere in the docs. If I run ltsp-update-image while clients are up and running are they going to get booted off? I'm not sure how the nbd connection handles having the image file pulled out from under it. Thanks. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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-discuss] Black screen after failed login
Gian Carlo Stagni wrote: Steve Cayford ha scritto: Recently I've started hitting this problem on Ubuntu 8.04. I use Debian Lenny. If I attempt to login to a client with a bad password, the LDM login screen displays the message Verifying password, please wait.. I had the same problem... until TODAY! :-) In the net I've found the tip of adding NumberOfPasswordPrompts 1 to the ssh client config file of the ltsp-client (/etc/ssh/ssh_config of the chrooted file system). The default is NumberOfPasswordPrompts 3. Now, if there is an error in username/password, in a few seconds the user has back a new LDM login screen. gc :-) That sounds promising. I'll give it a shot. Thanks. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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-discuss] LTSP5 - ldm: su user problem
Peter Stein wrote: Recently, I had some trouble working with ltsp: I logged in on one of the ldm-servers I specified. Then I changed the user and tried to open a program: /[EMAIL PROTECTED]:/amnt/home/Peter.Stein$ su ripley/ /Password: / /Last login: Thu Nov 20 15:16:38 2008 on pts/5/ /[EMAIL PROTECTED]:/amnt/home/Peter.Stein$ vim/ /X connection to localhost:14.0 broken (explicit kill or server shutdown)./ I think you're just running into the issue with credentials for X. Have you tried gksu or gksudo instead of su? -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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
[Ltsp-discuss] Black screen after failed login
Recently I've started hitting this problem on Ubuntu 8.04.
If I attempt to login to a client with a bad password, the LDM login screen
displays the message Verifying password, please wait... as normal, but
then never returns to the login. The password field is still there and I
can type in it, but it doesn't seem to have an effect. Eventually the
screen goes black with blinking underline cursor in the top left corner.
From the client at this point the only option appears to be Ctrl-Alt-Del
to reboot the machine.
If I open a terminal session on the client I can see this process hanging
around:
/usr/bin/ssh -X -t -M -S /var/run/ldm_socket_vt7_{server_ip} \
[EMAIL PROTECTED] echo LTSPROCKS ; LANG=C /bin/sh -
There are no corresponding sshd processes on the server.
Killing that process then restores the LDM login screen.
The ldm.log on the client contains this:
-begin-
LDM2 starting
LDM2 running on ip address {client_ip}
Launching Xorg
Spawning greeter: /usr/lib/ldm/ldmgtkgreet
In get_userid
In get_passwd
In get_host
In get_language
In get_session
Establishing a session with {server_ip}
Attempting ssh session as user
In set_message
ssh_chat: looking for ssword: from ssh
expect saw: Password:
ssh_chat: got it! Sending pw
expect saw:
Password:
Saw sentinel. Logged in successfully
Established ssh session.
Process returned no status
Executing rc files.
Beginning X session.
X session ended.
Executing rc files.
Killing X server.
Ending ssh session.
expect saw:
Password:
-end-
That looks like expect is misinterpreting the response from the ssh daemon.
But why would the ssh client process just hang around like that after
failing to connect?
-Steve
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Re: [Ltsp-discuss] [ltsp-discuss] Network clients stop responding for a while after 4 or 5 units boot up.
Mark David Dumlao wrote: [...] Anyways, it would seem that I have two problems that ask for a solution: 1) Are my local services performing DNS lookups? Why? How do I get them to stop doing that? 2) Is my pdns / bind / whatever dns under attack by bots using rndc? How do I stop them? This sounds like you need to break out wireshark (formerly ethereal). Watch for everything in and out of your server on port 53 and you should start to get a better idea of what's going on. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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-discuss] Server's root file system accessed by LTSP clients instead of chrooted file system (LTSP5 on Ubuntu8.10)
[EMAIL PROTECTED] wrote: [...] Now I wanted to start testing how certain software behaves under LTSP. So I installed three software packs (Stellarium, KStars and Celestia to be precise) on the server. By mistake I did install them under the true root '/' of the server as opposed to the chrooted '/opt/ltsp/i386' branch. So one would expect that the thin clients would not see these applications, right? (OR am I completely wrong when it comes to understanding how LTSP is supposed to work?!) Sorry, you're completely wrong. :) That is how LTSP is supposed to work. The chrooted file system under /opt/ltsp... is what runs on the clients, but it's basically just enough to manage the display and peripherals and give a remote login to the server. By default everything the user experiences is running on the server, not on the client. I had noticed before, that when I was logged in as one and the same user on a thin client as well as on the server at the same time, I was for instance unable to open Firefox on the client when I had it already running on the server. Exactly. Both instances of firefox are running on the server under the same user and attempting to use the same profile information. It's possible to run some applications locally, or even to run everything locally, but then you're basically running fat, diskless clients which is not the default LTSP model. I don't know about the nbd0-error, though. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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-discuss] Log Files
Geoff Lane wrote: I am trying to narrow down a small problem I have with LTSP. Does daemon.log give me all the info I need or are there other log files I need to view. It really depends on a) what distribution you're running, and b) what info you're looking for. Log messages can get sorted out into different log files based on their facility and priority and different distros seem to have different ideas about how they should get sorted out. The sorting is controlled by /etc/syslog.conf or a file to that effect. On Debian and Ubuntu I usually look in syslog for most things, auth.log for authentication problems and ssh logins, daemon.log for rare daemon problems, etc. But syslog usually has the information I'm looking for. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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-discuss] Trouble with nbi images on Ubuntu
Gideon Romm wrote: Dor etherboot images, it is not enough to just run update-initramfs. You must: 1. chroot /opt/ltsp/i386 update-initramfs -u 2. chroot /opt/ltsp/i386 /usr/lib/ltsp/update-kernels 3. ltsp-update-kernels Step #2 makes the nbi image using the updated initramfs created in step #1. -Gadi I was missing step 2, I'll try that on Monday. Thanks. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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
[Ltsp-discuss] Trouble with nbi images on Ubuntu
I'm trying to get my etherboot clients to use dhcp ports 1067/1068 on Ubuntu 8.04.1. I set up the initramfs configs to be (what I think) is correct, but was having no luck. Then I realized that the nbi image in /var/lib/tftpboot had not been modified. I had run the update-initramfs tool in the chroot and verified that the config files were modified inside the initrd file. I ran ltsp-update-kernels to pull the modifications into /var/lib/tftpboot, but that didn't modify the nbi although I though it was supposed to. So in the chroot I ran mkelf-linux on the kernel and initrd to create a new nbi, then ran ltsp-update-kernels again. Now when I try to boot the client it keeps loading the nbi, then complaining that the checksum does not match the image. Any suggestions? Thanks. -Steve - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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
[Ltsp-discuss] Alternate dhcp ports
Bringing up an old topic (from May and June) I bumped my server up to Ubuntu 8.04. And trying to get the new system to work with DHCP on ports 1067 and 1068. I still have clients booting up this way via an nfs share and my old client images, but I'd like to move them to the NBD system. I've been editing usr/share/initramfs-tools/scripts/ltsp_nbd and usr/share/initramfs-tools/conf.d/ltsp in the /opt/ltsp/i386 folder, then chrooting, running update-initramfs, then back to the host and running ltsp-update-kernels. Seems like the right way to do this, but the changes are having no effect. I started by just setting DHCPPORT in conf.d/ltsp, then editing scripts/ltsp_nbd and finally hardcoding the -p 1068 into every call to ipconfig in all the initramfs scripts, but no joy. Wireshark shows the client diligently sticking to the standard dhcp ports. Anyone have any success with this yet? -Steve -- Steven Cayford McNamara Academic Center University of Minnesota http://gopheracademics.com - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ _ 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-discuss] PXE Boot over multiple Subnets using W2003 SBS asDHCP Server
Aaron, Puzzling. The fact that the request is showing up in the syslog from in.tftpd should indicate that there is no firewall in the way and it looks like the tcpwrappers are not the problem. It also doesn't sound like a dhcp problem since at the point of this request the dhcp phase is already completed. How about the permissions on the file itself? According to the man page, tftpd will allow only publicly readable files (o+r) to be accessed, unless the -p option is specified. Make sure that the file /ltsp/i386/pxelinux.0 is readable by all, although I would have hoped for a log statement if it weren't. Do you have any other options specified in the /etc/default/tftpd-hpa? Mine looks like this: #Defaults for tftpd-hpa RUN_DAEMON=yes OPTIONS=-l -s /var/lib/tftpboot So the the client's request for the file /ltsp/i386/pxelinux.0 would refer to the file on the server at /var/lib/tftpboot/ltsp/i386/pxelinux.0, which on my machine has the permissions -rw-r--r-- and is owned by root. Hm. Then again, if you're not having problems with booting clients on the local net this would not be the problem. Never mind. The only other thing I can think of is that you have an outgoing firewall dropping packets from the response. There isn't any default firewall that I know of. In any case, the query iptables -L -n -v would show it to you if there were. Are you running wireshark on the ltsp server itself? I'll try some experimenting on my setup when I get a chance. -Steve Aaron J. Wood wrote: Steve, Thank you very much for getting back to me. This issue has become very frustrating and a truly appreciate your help. I wanted to make sure that the Windows 2003 SBS acting as the DHCP wasn't part of the problem so I removed it from the equation. I am now running the DHCP service on the LTSP server and only serve static addresses to the subnet that I am trying to remote boot from (192.168.50.X). This is working fine. The remote client gets the IP address 192.168.50.35 and then requests the file /ltsp/i386/pxelinux.0 from the TFTP server. The following is shown in the syslog when this happens. Jun 8 00:17:20 debian in.tftpd[5411]: RRQ from 192.168.50.35 filename /ltsp/i386/pxelinux.0 The remote client just hangs here and nothing is ever transferred. I checked the hosts.allow and hosts.deny and nothing was in there. I added the following to hosts.allow: ALL: 192.168.50.0/255.255.255.0 But this doesn't seem to help. Also, there is nothing in the iptables either. I am completely stumped now. Is there a way that I can see why tftpd-hpa is not able to send the file? Could this be a netmask issue within dhcpd3.conf? Does the default install of Debian have a firewall that I don't know of? Any more help you can give me would be great. Regards, Aaron J. Wood - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _ 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-discuss] PXE Boot over multiple Subnets using W2003 SBS asDHCP Server
Okay, that shot down all my theories. I don't know where else to look at the moment. -Steve Aaron J. Wood wrote: Steve, I am writing this fast as I am running out the door. I booted a windows machine on the remote subnet and was able to retrieve the pxelinux.0 file from the windows machine via tftp. I ran the following command and received: c:tftp 10.0.1.4 get /ltsp/i386/linuxpxe.0 Transfer Successful: 13628 bytes in 4 seconds So this means that tftp is working and not being blocked. This has got to be something else. I will read your email in detail when I return home and post any update. Regards, Aaron J. Wood Sun Tire Services, Inc 904-693-0990 - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _ 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-discuss] PXE Boot over multiple Subnets using W2003 SBS asDHCP Server
Aaron, To my knowledge, tftp does not reference the exports file. It's more likely that packets are being blocked by a firewall or by tcpwrappers. I would look in the logs for dropped packet notices or any information from tftp -- you can boost the logging verbosity with -v in /etc/default/tftp-hpa (on my Ubuntu machine anyway). Look at the manual page for tftpd (man tftpd) for more options; it's a very simple daemon. Try iptables -L -n -v to see if you're dropping packets to port 69 from anywhere (tftp uses the UDP protocol). Look in /etc/hosts.allow and /etc/hosts.deny to see if you have any tcpwrapper rules affecting your tftp daemon. Hope one of these ideas helps. -Steve Aaron J. Wood wrote: Steve, It does not appear that the TFTP server is responding. The wireshark trace only shows activity from the remote client to the TFTP server on port 69. Could this have something to do with my exports file? I am learning Linux and not sure about a lot of these things. If not, where could I look for something blocking this request from other subnets? Regards, Aaron J. Wood Sun Tire Services, Inc 904-693-0990 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Cayford Sent: Friday, June 06, 2008 6:16 PM To: ltsp-discuss@lists.sourceforge.net Subject: Re: [Ltsp-discuss] PXE Boot over multiple Subnets using W2003 SBS asDHCP Server Is the tftp server responding at all? Your description sounds like the connection is getting blocked on the server before it reaches the tftp daemon. -Steve Aaron J. Wood wrote: Update: I installed wireshark on the LTSP server and the remote booting client is in fact getting to port 69 and asking for the pxelinux.0 file. It takes about 15 minutes before the TFTPerrors out and the boot stops. I will attach a log from wireshark once it is finished recording the boot process. Does this mean that the file is simply too large to transmit? Any thoughts appreciated. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _ 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 No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 270.0.0/1488 - Release Date: 6/6/2008 5:48 PM - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _ 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 - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _ 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-discuss] PXE Boot over multiple Subnets using W2003 SBS asDHCP Server
Is the tftp server responding at all? Your description sounds like the connection is getting blocked on the server before it reaches the tftp daemon. -Steve Aaron J. Wood wrote: Update: I installed wireshark on the LTSP server and the remote booting client is in fact getting to port 69 and asking for the pxelinux.0 file. It takes about 15 minutes before the TFTPerrors out and the boot stops. I will attach a log from wireshark once it is finished recording the boot process. Does this mean that the file is simply too large to transmit? Any thoughts appreciated. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _ 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-discuss] Changing /opt partition
Just a thought, but why not move stuff from /opt directly into /archive and then remount it on /opt? Also rsync is nice for big copies. My approach: # rsync -av /opt/ /archive/ # umount /dev/cciss/c0d0p12 Edit /dev/cciss/c0d0p12 mount point in fstab to /opt # mount /dev/cciss/c0d0p12 after confirming everything works, umount the partition and clear out the old /opt -Steve Chris Roberts wrote: Finally decided to upgrade to LTSP5, but before I do, I need to sort out an old problem which I have been putting off. For reasons far too complicated to go into (AKA I screwed up) I have ended up without a separate /opt partition. In itself not a huge problem, but unfortunately this has resulted in the / partition being closer to capacity than I would like. Fortunately I have a massive and unused /archive partition (on /dev/cciss/c0d0p12 filesystem) which I am not using. I therefore want to unmount /dev/cciss/c0d0p12, change the mount position to /opt and remount. Given that /opt is only used when clients first boot, and /archive is currently unused, this would seem quite straightforward and safe. My plan is simply to do: # mv /opt /home/opt # umount /dev/cciss/c0d0p12 Edit /dev/cciss/c0d0p12 mount point in fstab to /opt # mount /dev/cciss/c0d0p12 # mv /home/opt to /opt Test! I have a HP Proliant DL380 G5 with hardware RAID1+0. The system is backed up nightly to DAT. Can anyone advise on whether my proposed solution is sensible, or whether I should do anything different - particularly given the hardware RAID? Thanks. -- Steven Cayford McNamara Academic Center University of Minnesota http://gopheracademics.com - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ _ 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-discuss] LTSP 5 Custom Kernel
Well, this is a bit old, but here are my notes to myself from a little over
a year ago -- I don't know how much still applies since the new system uses
nbd and squashfs instead of nfs. I'll be upgrading this system soon so I'll
probably find out shortly.
In any case, I doubt you should need to recompile the kernel, you just need
to get the right settings in the initrd.
*** Begin notes from 2007-03:
I'm using alternate DHCP ports 1067-1068. This comes up in three places:
1. Etherboot: downloaded an etherboot image from http://rom-o-matic.net/
with the alternate ports, set the alternate ports on the server in
/etc/ltsp/dhcpd.conf (local-port and remote-port) and opened firewall holes.
2. Kernel bootup: after etherboot gets the kernel with tftp, and it
begins to boot it will ask dhcp for an address and location for the nfs
root. This is controlled in the /scripts/nfs file in the client's initrd.
* on the server, chroot /opt/ltsp/i386
* edit /usr/share/initramfs-tools/scripts/nfs and change the line
ipconfig ${DEVICE} to ipconfig -p 1068 ${DEVICE}
* create a new initrd with update-initramfs -c -k
{kernel-version-number eg. 2.6.7-10-386}. You might want to save a copy of
the original first.
* make a new nbi image combining the kernel and initrd with mkelf-linux
--output=/boot/nbi.img-2.6.17-10-386 vmlinuz-2.6.17-10-386
initrd.img-2.6.17-10-386 (using the appropriate kernel version numbers)
* exit the chroot
* copy the new initrd and nbi.img from /opt/ltsp/i386/boot into
/var/lib/tftpboot/i386 so tftp will serve it out.
3. After booting, the dhcp client will maintain the network ip (TODO: I
haven't figured out if this is necessary yet).
*** End notes
Sean Carte wrote:
I want to deploy LTSP in a situation where there is a pre-existing
DHCP server. From what I've read, the way to make this work involves
running a DHCP server on a different port and compiling a custom
kernel for LTSP with the DHCP client set to retrieve its data on that
port.
I've found some documentation, including this:
http://ltsp.sourceforge.net/contrib/parallel_dhcp.txt, which mentions
ltsp_initrd_kit. But this appears to be available for LTSP 4 only.
Is it possible to compile a custom kernel for LTSP 5? Are there
idiot-proof instructions anywhere? Or is there an easier way to
accomplish what I need?
I'm running LTSP 5.0.40 on Ubuntu 8.04.
Sean
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+27 72 898 8775
+27 31 373 2490
fax: 0866741254
http://esal.dut.ac.za/
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Re: [Ltsp-discuss] 2 instances of ssh
David Burgess wrote: On Fri, May 9, 2008 at 6:27 AM, Rob Owens [EMAIL PROTECTED] wrote: Rob Owens wrote: On Thu, Mar 06, 2008 at 01:31:50PM +0100, Oliver Grawert wrote: hi, Am Mittwoch, den 05.03.2008, 13:44 -0500 schrieb Rob Owens: I'd like to run 2 instances of ssh on my LTSP 5 server, so that I may disallow password authentication from the internet. I know I can compile from source for the 2nd instance, but is there any way of using Ubuntu's openssh-server package for both instances? Can I somehow tell the package to install its binary and config files in /usr/local? just copy the initscript to ssh_custom or so and add the matching parameters to the daemon call ... Could I beg for some expansion here? I'm trying to do the same here. I did cp /etc/init.d/ssh to /etc/init.d/ssh_ltsp cp /etc/default/ssh /etc/default/ssh_ltsp update-rc.d ssh_ltsp defaults replaced etc/default/ssh with /etc/default/ssh_ltsp in /etc/init.d/ssh_ltsp added SSHD_OPTS=-p to /etc/default/ssh_ltsp and /etc/init.d/ssh_ltsp start It appears to start ok but netstat -lnt | grep turns up nothing. Where have I gone wrong here? Thanks. db In /etc/init.d/ssh_alternate I changed the references for /etc/default/ssh to /etc/default/ssh_alternate and in ssh_alternate set SSHD_OPTS=-f /etc/ssh/sshd_alternate_config In the alternate config file I specified a different port and a different pid file: PidFile /var/run/sshd_alternate.pid Port I also changed the pid file for the start-stop-daemon command in /etc/init.d/ssh_alternate -Steve - This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _ 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-discuss] Xfce panel missing on terminal revised
I've run into this as well. For me, deleting the .cache directory in the user's home fixed the problem. -Steve J. Paul Bissonnette wrote: The problem with the panels in XFCE started again. I noticed that settings - panel manager did not function. I tried run program xfce4-panel, the panel appeared, logged out with save session, logged back in the panels were functioning as should be. *** The cure is quite simple, why it happens is a mystery. Cure: rename the clients folder. deluser client add the user again copy only files that have nothing to do with XFCE or GNOME J. Paul Bissonnette wrote: Very small setup running Debian testing LTSP 4.2, server and a laptop as terminal, total of 3 accounts I log in on the server, the lap top is the another accounts. When I powered up the laptop this morning, the top and bottom panels of XFCE were missing on just 1 account. They are not missing for this account on the server, ehere everything is the way they were when the laptop was logged out last night. Any suggestions. Paul - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ _ 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-discuss] Please Help with LTSP 5
I've occasionally run into problems with aptitude or apt-get failing to do name resolution correctly. My work-around has been to use the ip address for the repository instead of the host name. Usually I can switch it back after an update or two. -Steve Michael Blinn wrote: I also got this message when installing a fat Gutsy box, but didn't receive it doing an install with the same disc a few weeks earlier. Maybe the server is having problems? -Michael [EMAIL PROTECTED] wrote: Hi, I have previously been able to do an LTSP 5 setup. I simply followed the debian ltsp how to and everything worked well, from the server to the clients. But now, I am setting up another terminal server with debian and ltsp5 but I cannot go through the ltsp-build-client procedure successfully. Now, I always get this message: Note: disabling security APT source for sid. It does not exist. I. Retrieving Release E. Failed getting release file http://http.us.debian.org/debian/dists/sid/Release error: LTSP client installation ended abnormally Did some modification on my sources list, using different well-known debian mirrors but still no luck solving this. I would appreciate guidance on this. Ingrid - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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 - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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-discuss] Gusty LTSP Screen Viewer and SSH
ugh ugher wrote: [...] If I do vncviewer 192.168.1.5:0 I get unable to connect to host connection refused (111) Help?? It's not blocked by tcpwrappers is it? (hosts.allow, hosts.deny) Or is x11vnc being installed in a more secure mode by default? -Steve - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ _ 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-discuss] Ltsp-discuss Digest, Vol 17, Issue 34
jam wrote: On Wed, 2007-10-31 at 10:45 -0700, [EMAIL PROTECTED] wrote: Can anybody confirm if they are Thin or Fat clients? ie This Display has an IP of its own as opposed to having the server IP Curious - James They are thin clients, they clearly just found a way of allocating Virtual IPs on the same network card to each ICA session. Aaah thanks, I was technically interested, not sales marketing hype interested. So with its own IP it is a FAT (or virtual FAT) client. A Thin Client (again technical bla) is a keyboard/display on the server. It can't have an IP, the server already has one. [...] That seems like a somewhat arbitrary distinction. What's the benefit of defining a thin client by the presence or absence of an IP address? Seems like the only things that would qualify would be the old dumb terminals on a serial line. I was also thinking of multi-headed X server configurations, but then you don't really have a client at all. I'd say there's a spectrum of different configurations having more or less thinness depending on how different parts of the load are distributed between client and server. By your definition, something that boots over the network, mounts its file system over the network, then opens an x session on a server still doesn't qualify as a thin client? -Steve - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ _ 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-discuss] Session Inactivity automatic logout
Lee Portnoff wrote:
Is there a way to have terminals automatically logoff after a certain
amount of inactivity time? Searching archives, I saw someone suggest
logmon (www.logmon.com) Is there any other way to achieve this?
Here's a screen saver I wrote in perl to do this. It's probably badly
done, but it works. Set the screen saver timeout to whatever you want,
then this script will start and show a countdown for 10 seconds
($countdown - 1) before logout. It's written for xfce, so you'd need to
modify the logout_command for other environments.
-Steve
#!/usr/bin/perl
use warnings;
use strict;
use Tk;
use Tk::Font;
use POSIX;
# globals
# will logout those in @affected_groups who are not also in
# @immune_groups, everyone else gets a clock
my @affected_groups = ( 'students' );
my @immune_groups = ( 'monitors', 'staff' );
my $countdown = 11;
my $username = getpwuid( $ );
my @logout_command = ( 'xfce4-session-logout' );
my $affected;
my $display_text;
my ($x_position, $y_position);
my $x_delta = 5;
my $y_delta = 5;
my $margin = 150;
my ($screen_x, $screen_y);
my $canvas;
sub update {
if ($affected) {
--$countdown;
if ($countdown 1) {
system( @logout_command );
exit;
}
$display_text = Logout in\n$countdown\nseconds.;
}
else {
$display_text = strftime( %A, %B %e, %Y - %l:%M:%S %P,
localtime() );
}
my ($new_x, $new_y);
$new_x = $x_position + $x_delta;
if ( ($new_x $screen_x - $margin) or ($new_x $margin) ) {
$x_delta = - $x_delta;
$new_x = $x_position;
}
$new_y = $y_position + $y_delta;
if ( ($new_y $screen_y - $margin) or ($new_y $margin) ) {
$y_delta = - $y_delta;
$new_y = $y_position;
}
$x_position = $new_x;
$y_position = $new_y;
$canvas-coords( 'label', $x_position, $y_position );
}
sub user_in_group {
my $group = shift;
my $guid = getgrnam( $group ) or return;
my @groups = split( ' ', `id -G` );
if (grep {$_ == $guid} @groups) {
return 1;
}
else {
return 0;
}
}
sub user_affected {
my $affected = 0;
for my $group (@affected_groups) {
if (user_in_group( $group )) {
$affected = 1;
}
}
for my $group (@immune_groups) {
if (user_in_group( $group )) {
$affected = 0;
}
}
return $affected;
}
# Start
$affected = user_affected();
# setup window
my $main = MainWindow-new( -background = 'black' );
$main-overrideredirect( 1 );
$main-MoveToplevelWindow( 0, 0 );
$screen_x = $main-screenwidth;
$screen_y = $main-screenheight;
$x_position = $screen_x / 2;
$y_position = $screen_y / 2;
$main-geometry( $screen_x . 'x' . $screen_y );
$main-fontCreate( 'labelfont',
-size = 20,
-family = 'Times' );
$canvas = $main-Canvas( -height = $screen_y,
-width = $screen_x,
-borderwidth = 0 );
$canvas-pack( -expand = 1,
-fill = 'both' );
$canvas-create( 'rectangle',
1, 1,
$main-screenwidth - 1,
$main-screenheight - 1,
-fill = 'black',
-outline = undef );
my $label = $main-Label( -textvariable = \$display_text,
-foreground = 'black',
-background = 'white',
-font = 'labelfont' );
my $canvas_label = $canvas-create( 'window',
$x_position, $y_position,
-window = $label,
-tags = ['label']);
$main-repeat( 1000, \update );
update();
MainLoop;
# End
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Re: [Ltsp-discuss] LDAP and LTSP
William Cody wrote: To address a couple of issues: With LTSP or diskless workstations there is no hard drive in the systems. Not to quibble, but some LTSP clients do have hard disks which hold an etherboot image to get the booting process started. I thought you were referring to something like that. The boot off of an application server via PXE boot or network boot. On the application server there is an lts.conf file that points the diskless workstation to the NIS server to autheticate the user. The NIS stuff in lts.conf should only be necessary for running local apps, it shouldn't affect the initial login. The application server itself is what handles the initial login. I am moving off of NIS and going to LDAP for authetication. I have already setup authetication in the system-config-authentication. I have everything running almost perfectly because LDAP autheticates the users on the DISKED workstation (computer that has a hard drive and is running FC6). Have you setup the application server with LDAP authentication? Can you login to the application server's console as an LDAP authenticated user? I have my application server setup to authenticate to an LDAP server and did not need to make any modifications to the lts.conf file. The DISKLESS workstation booting off of the application server via PXE is the one I cannot login to with my users. The reason I cant login is because I am not sure what to put in the lts.conf file to point the workstation in the right direction to get the credentials for that users (ie: username and password). Any ideas would be appreciated. */Steve Cayford [EMAIL PROTECTED]/* wrote: As far as I know the diskless clients shouldn't need to know anything about the authentication scheme. That's all handled by your pam setup on the server. When you say disked workstation, do you mean a workstation booting a full Linux distro off the hard drive or some sort of etherboot situation? -Steve William Cody wrote: I am having some issues that I am hoping can be resolved here. I have setup a LDAP test environment and it is going very good. This is what I have in my test environemtn: LDAP master LDAP slave 2 types of DISKLESS workstations (no hard drivepxe boot) 1 DISKED workstation (has a hard drive) I have my LDAP master and slave both up and running and replication working between the master and the slave. I am wanting to use LDAP to authenticate user login for the time being. In my test environment I have two types of machine I am testing this on - a DISKED workstation (has a harddrive) which I am able to login to and have my username authenticated via LDAP, so it is working fine. The one I am having an issue with is my DISKLESS workstation. I don't know what I need to add to my lts.conf file to tell it to use ldap for user authentication. Any suggestions would be greatly appreciated. Thanks! Steven Cayford McNamara Academic Center University of Minnesota http://gopheracademics.com - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ _ 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-discuss] LDAP and LTSP
As far as I know the diskless clients shouldn't need to know anything about the authentication scheme. That's all handled by your pam setup on the server. When you say disked workstation, do you mean a workstation booting a full Linux distro off the hard drive or some sort of etherboot situation? -Steve William Cody wrote: I am having some issues that I am hoping can be resolved here. I have setup a LDAP test environment and it is going very good. This is what I have in my test environemtn: LDAP master LDAP slave 2 types of DISKLESS workstations (no hard drivepxe boot) 1 DISKED workstation (has a hard drive) I have my LDAP master and slave both up and running and replication working between the master and the slave. I am wanting to use LDAP to authenticate user login for the time being. In my test environment I have two types of machine I am testing this on - a DISKED workstation (has a harddrive) which I am able to login to and have my username authenticated via LDAP, so it is working fine. The one I am having an issue with is my DISKLESS workstation. I don't know what I need to add to my lts.conf file to tell it to use ldap for user authentication. Any suggestions would be greatly appreciated. Thanks! Yahoo! oneSearch: Finally, mobile search that gives answers, not web links. http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ _ 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 -- Steven Cayford McNamara Academic Center University of Minnesota http://gopheracademics.com - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ _ 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-discuss] grub/other booting, adobe-helvetica-bold, ldap
Umar Said wrote: [...] My first question is, how do I boot from grub? I have successfully boot ltsp using pxe on some machine with pxe in it. But there are some machines which cannot boot from LAN. Can I enter grub menu then boot ltsp from there? Or is there any way to do it? Yes, get an etherboot image from rom-o-matic.net in the LILO/GRUB/SYSLINUX loadable kernel format (.zlilo) (or make your own) and drop it in a partition on the hard drive. Then point grub toward it with a stanza like title Terminal root(hd0,1) kernel /boot/etherboot-5.4.3.zlilo boot On server there is adobe-helvetica font installed when I install Ubuntu. But it is not available on client. Some applications complain when it's not available. Which package does provide the font? I'm using LDAP with the LDAP server on different machine than ltsp server. When I use users-admin to modify user property (say permitting audio and local device access), the users displayed limited to local ltsp server user, not including LDAP user. Whenever I change only one user property, all other property I make which is available to LDAP user is gone, replaced by changes from users-admin. How do I make users-admin recognize LDAP user? I have similar layout, but I don't use users-admin. I'm using LDAP tools on the LDAP server to add and modify users. I had to move user groups like audio, fuse, etc. into the LDAP directory then control the group associations there. There may be a way to do this from the terminal server, but so far it works to go directly to the LDAP server for me. [...] -Steve - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ _ 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-discuss] Crossover and LTSPFS
Steve Cayford wrote: [...] I'm testing crossover running MS Office 2003 under LTSP 5 on Xubuntu 7.04. It works pretty well, except that if I open an office document that is on a flash drive then try to save it, I get an error message saying This file is read-only. If I try to save it on the flash drive with a different name, Office creates a 0 byte file, then crashes. The flash drive is mounted on the LTSP server using LTSPFS. Replying to myself for the benefit of the email archives and anyone else who runs into this. I got the following response from Codeweavers: The issue is caused by the lack of support for writeable mmap in the filesystem you are trying to save the file on. Normally if you were just accessing a flash drive directly or over NFS this should not be a problem but LTSPFS uses Fuse which does not support writeable mmap. -Steve - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ _ 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-discuss] logout in ltsp 5 (ldm)
Thierry Blanc wrote: To use LTSP (5) and Xubuntu Desktop for a internet kiosk, I wrote a few shellscripts to manage account of customers. All scripts work fine, countdown, credit, warning message, automatic creation of homedir during login, etc. but I could not find anything about FORCED LOGOUT when the credit and grace time for a customer is finished. A script (by root) should be able to log out a user. [...] I'd be interested in the same thing. I'm calling xfce4-session-logout (from a screensaver script), but that seems to rely on the user's setting of not confirming logouts. -Steve - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ _ 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
[Ltsp-discuss] Crossover and LTSPFS
Hi, (I asked this on the codeweaver list, but haven't got much response. Maybe someone here has some ideas?) I'm testing crossover running MS Office 2003 under LTSP 5 on Xubuntu 7.04. It works pretty well, except that if I open an office document that is on a flash drive then try to save it, I get an error message saying This file is read-only. If I try to save it on the flash drive with a different name, Office creates a 0 byte file, then crashes. The flash drive is mounted on the LTSP server using LTSPFS. Has anyone run into this problem or know of a way to work around it? It works okay to copy the file to the desktop, work on it there, then copy it back to the flash drive later, but I'm sure that my end-users are going to run into this problem a lot. -Steve - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ _ 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-discuss] alternate DHCP port 1067/1068 in ltsp5
ilkka.koivistoinen wrote:
Does alternate port 1067/1068 work in ltsp version 5?. dhcp3 seems do
response
ok (port 1067/1068) and tftp works. After booting, nfs-mount fails and
rootserver seems to be the main dhcp (used in local windows net in port 67).
I think there are three places where this comes up: pre-kernel booting,
post-kernel initrd, and maintenance. It sounds like you've got the first step.
Here are notes I made for myself after getting this up on Xubuntu 6.10:
1. Etherboot: downloaded an etherboot image from http://rom-o-matic.net/
with the alternate ports, set the alternate ports on the server in
/etc/ltsp/dhcpd.conf (local-port and remote-port) and opened firewall holes.
2. Kernel bootup: after etherboot gets the kernel with tftp, and it begins
to boot it will ask dhcp for an address and location for the nfs root. This is
controlled in the /scripts/nfs file in the client's initrd.
* on the server, chroot /opt/ltsp/i386
* edit /usr/share/initramfs-tools/scripts/nfs and change the line
ipconfig ${DEVICE} to ipconfig -p 1068 ${DEVICE}
* create a new initrd with update-initramfs -c -k
{kernel-version-number eg. 2.6.7-10-386}. You might want to save a copy of the
original first.
* make a new nbi image combining the kernel and initrd with
mkelf-linux --output=/boot/nbi.img-2.6.17-10-386 vmlinuz-2.6.17-10-386
initrd.img-2.6.17-10-386 (using the appropriate kernel version numbers)
* exit the chroot
* copy the new initrd and nbi.img from /opt/ltsp/i386/boot into
/var/lib/tftpboot/i386 so tftp will serve it out.
3. After booting, the dhcp client will maintain the network ip (TODO: I
haven't figured out if this is necessary yet since the DHCP servers are in
sync other than the nfs stuff).
System: kubuntu feisty + ltsp5 from kubuntu package sources
Problem2: ltsp-manager stops with message
Traceback (most recent call last):
File /usr/bin/ltsp-manager, line 13, in module
import ltsp
ImportError: No module named ltsp
Don't know this one.
-Steve
--
Steven Cayford
McNamara Academic Center
University of Minnesota
http://gopheracademics.com
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Re: [Ltsp-discuss] Ltsp-discuss Digest, Vol 11, Issue 13
[EMAIL PROTECTED] wrote: [...] In my experience, and try YMMV, two boots was all that was ever needed. power on Bla bla - error power off power on Bla Bla - success My users were happy to do this, explained once and no complaints, including linux-phobes (haters) Interesting. I may fall back to that, but since I've got the alternate dhcp port thing working I'll see if I can't continue with the etherboot option first. -Steve - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _ 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-discuss] Client recommendations for etherboot
[EMAIL PROTECTED] wrote: On Sunday 15 April 2007 03:06, [EMAIL PROTECTED] wrote: I'm currently using an etherboot hard drive installation on standard PCs for our LTSP clients. I'd like to investigate moving to dedicated thin clients to save money and power, however I need to run dhcp on an alternate port to work around campus-wide dhcp servers that I don't control. As far as I understand, this means PXE booting is not an option. Are there recommendations for clients that use etherboot or which can be easily configured to an alternate port? I have had much success with dual dhcp servers on the same port. The ltsp server serves to known mac addresses only. If the client gets a reply from *the other* server much info is missing (root path, file name etc) so it does not proceed. I usually have the first OFFER fail and the second succeed. This make the whole LTSP setup very easy, and not intrusive for the users. Right, but I don't have any control over the other (central campus) dhcp server, so if mine is a little slow and the other server replies first the client hangs since the other server is not offering a kernel. I don't see how I could make it fall back to my server short of telling the user to keep re-booting until it succeeds. (Which I don't think would go over real well.) -Steve - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _ 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
[Ltsp-discuss] Client recommendations for etherboot
I'm currently using an etherboot hard drive installation on standard PCs for our LTSP clients. I'd like to investigate moving to dedicated thin clients to save money and power, however I need to run dhcp on an alternate port to work around campus-wide dhcp servers that I don't control. As far as I understand, this means PXE booting is not an option. Are there recommendations for clients that use etherboot or which can be easily configured to an alternate port? -- Steven Cayford McNamara Academic Center University of Minnesota http://gopheracademics.com - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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-discuss] clients logout and shutdown in XFCE
Marco Renoldi wrote: Hello! In our school we have Ubuntu 6.06 and LTSP 4.2. with up to 20 clients. When the students need to use Openoffice I ask them to change session and log in XFCE, but I wasn't able to disable the shut down button when the clients log out. Anyone can help please? Are you talking about the shutdown button that xfce shows when you log out? If so, I fixed that problem on my server by editing /etc/xdg/xfce4/kiosk/kioskrc to look like this: [xfce4-session] CustomizeSplash=%wheel CustomizeChooser=%wheel CustomizeLogout=%wheel CustomizeCompatibility=%wheel Shutdown=NONE CustomizeSecurity=NONE The key point being the Shutdown=NONE line. -Steve - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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
[Ltsp-discuss] Drives on desktop in LTSP5
I've got LTSP5 up and running on a Xubuntu 6.10 server. Two questions:
1. When I plug a usb drive into a client it mounts the drive under
/media/$user/usbdisk-sda1, is there a way to configure this onto the desktop
instead? Or should I setup a symlink from the desktop to /media/$user?
2. /media/$user/atadisk-hda2 was also getting mounted and pointed back to the
client's hard drive partition which holds the etherboot image it boots from. I
changed the udev rule in 88-ltsp.rules to say:
ACTION==add, SUBSYSTEM==block, ENV{ID_FS_TYPE}==?*, KERNEL!=hda[0-9],\
RUN+=add_fstab_entry %k $ENV{ID_FS_TYPE}
This works, but is it the recommended approach?
Thanks.
--
Steven Cayford
McNamara Academic Center
University of Minnesota
http://gopheracademics.com
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Re: [Ltsp-discuss] What's a good distro for a non-thinclient thinclient?
I've been happy using Feather for lightweight stuff (it's a stripped down version of Knoppix), but I don't know if it's been updated recently. You can also search at distrowatch.com for distributions to fit your criteria. -Steve David Nielson wrote: I've got a laptop with a PCMCIA ethernet adaptor and I'm sick of running Windows on it exclusively. Because its only NIC is PCMCIA, I can't just PXE-boot it. So I copied the LTSP kernel and initrd into the laptop's /boot/ directory and booted from it, and since the LTSP initrd doesn't have drivers for PCMCIA stuff, it can't boot. (Drivers? Modules? I don't know the terminology) I know that if I (for example) installed a full-blown distribution of Linux, I could use XDMCP every time I log in to connect to my LTSP server, which is almost like it being a real thin-client. But then I'm potentially installing a huge distribution on the laptop, which is basically wasted. The nearest distro I have that I could use is Fedora Core 5 or 6, and that is an awfully big distribution for this laptop. Is there a lighter distro that I could install, and easily configure to automatically connect via XDMCP to the LTSP-server, rather than log into itself? Is there maybe a distro made specifically to this task? David - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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-discuss] Openoffice window decorations scrambled
Steve Cayford wrote: This may be off topic, I'm not sure. I'm setting up an LTSP5 system on Xubuntu 6.10. When I log in from my test client (via ldm) it's working beautifully, except that the window decorations on openoffice.org are garbled. Other apps are fine, logging in to the server itself does not give this problem. The client is using the i810 Xserver driver, I tried vesa and vga, but they didn't work at all (perhaps I did it wrong). [...] To follow-up: I changed the X color depth to 16 bits from 24 and that seems to have resolved the issue. Still curious why open office had this problem and not other apps. -Steve - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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
[Ltsp-discuss] Openoffice window decorations scrambled
This may be off topic, I'm not sure. I'm setting up an LTSP5 system on Xubuntu 6.10. When I log in from my test client (via ldm) it's working beautifully, except that the window decorations on openoffice.org are garbled. Other apps are fine, logging in to the server itself does not give this problem. The client is using the i810 Xserver driver, I tried vesa and vga, but they didn't work at all (perhaps I did it wrong). Here's a screenshot to illustrate the problem: http://strayf.freeshell.org/Screenshot.png This is logged in at the client, the window in the background is openoffice. It looks just as bad in the foreground. Any thoughts? Thanks. -Steve - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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
[Ltsp-discuss] DHCP on alternate ports
Hello,
I'm setting up an LTSP (v.5) server on Xubuntu 6.10. I'm trying to work around
an existing DHCP server by running on ports 1067 and 1068. I've got the
etherboot part working. The client gets an IP and downloads the kernel via
tftp successfully, but is unable to mount the root filesystem via nfs. Once
the kernel takes over it switches back to trying the default dhcp ports.
I followed the recommendations in this discussion,
http://www.mail-archive.com/edubuntu-users@lists.ubuntu.com/msg00175.html ,
however the ipconfig -p 1068 ${DEVICE} line in /scripts/nfs doesn't seem to
help. I verified that it is changed in the new initrd that I created in
/opt/ltsp/i386.
After the client fails to get a valid nfs mount (since it's talking to the
wrong dhcp server) it goes to a busybox prompt. I tested the ipconfig command
above at the prompt and it works so I'm not sure why it's not being succeeding
in the script.
Thanks for any suggestions.
--
Steven Cayford
McNamara Academic Center
University of Minnesota
http://gopheracademics.com
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Re: [Ltsp-discuss] DHCP on alternate ports
Steve Cayford wrote:
[...]
I followed the recommendations in this discussion,
http://www.mail-archive.com/edubuntu-users@lists.ubuntu.com/msg00175.html ,
however the ipconfig -p 1068 ${DEVICE} line in /scripts/nfs doesn't seem to
help. I verified that it is changed in the new initrd that I created in
/opt/ltsp/i386.
If I may reply to myself...
I was missing the mkelf-linux step. I ran that to create a new nbi image,
copied it into /var/lib/tftpboot/i386/ and now things are good to go.
--
Steven Cayford
McNamara Academic Center
University of Minnesota
http://gopheracademics.com
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Re: [Ltsp-discuss] Define some words?
Dries Desmedt wrote: Hi, Can somebody tell me where muekow, lbe and ldap is standing for and what it is? Well, here's a start: lbe: http://wiki.ltsp.org/twiki/bin/view/Ltsp/LBE muekow: http://wiki.ltsp.org/twiki/bin/view/Ltsp/MueKow ldap: http://www.openldap.org/faq/data/cache/3.html lbe and muekow are specific to LTSP, ldap is not. -Steve - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV _ 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-discuss] Gigabit Ethernet
You'll find a little overview here: http://wiki.ltsp.org/twiki/bin/view/Ltsp/ServerSizing#10mbit_100mbit_Gigabit It recommends gigabit from the server to the switch, while 100Mb is sufficient from the switch to clients. But, of course, it depends on your load and usage patterns, too. -Steve p.s. I am not an expert, though. Donny Christiaan wrote: Dear Expert, I would like to use Gigabit Ethernet on my LTSP Server. Before I do that, I need some information about Gigabit. Is it good for me to use Gigabit Ethernet instead of 10/100 Ethernet? Could anybody give me a good reason why should i change to Gigabit Ethernet? Thank you. Donny Christiaan. Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 _ 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 Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 _ 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-discuss] Specific DHCP Server
Jim McQuillan wrote: On Wed, March 8, 2006 4:50 pm, Lonnie Cumberland wrote: Hello All, Is there a way to build a floppy boot disk for my clients in which I can specify a specific DHCP server IP? A dhcp client sends out a broadcast request for network information. There's no way to direct it to a specific DHCP server. There are ways to configure your dhcp servers to ignore requests from unknown clients. That's handy if you have more than one DHCP server on the same network segment. Or you can use an alternate dhcp port and setup your specific server to listen on that port. http://wiki.ltsp.org/twiki/bin/view/Ltsp/DHCP#Use_different_port_numbers_for_t -Steve --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 _ 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-discuss] Re: SOLVED: Dosemu takes 99% of cpu
Fajar Priyanto wrote: When I got it fix by eliminating the duplicated files, the program can display the report quickly again, although dosemu still takes 99% of cpu. But, it is only when it is calculating. When the report is done, the cpu comes normal again. Couldn't you use ulimit to stop it from sucking down your cpu? -Steve --- SF.Net email is Sponsored by the Better Software Conference EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile Plan-Driven Development * Managing Projects Teams * Testing QA Security * Process Improvement Measurement * http://www.sqe.com/bsce5sf _ 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-discuss] different logins for different folks
Joe Baker wrote: On Wed, 10 Aug 2005 10:09:27 -0500, Steve Cayford [EMAIL PROTECTED] wrote: Joe Auerbach wrote: Interestingly enough, as far as I can tell, ubuntu has no .xsession file. I have no idea how it logs you into X, but there is no ~/.xsession. On my Debian Sarge system there's no ~/.xsession by default, but if I create one it will be honored. Try looking under /etc/X11 for the system wide Xsession script, the Xsession.d directory and Xsession.options. The options file specifically has a flag allow-user-xsession indicating whether or not the ~/.xsession file will be used. (also see man Xsession) This is on Debian, but I figure Ubuntu should be pretty similar. -Steve Steve Crayford, Thank You for revealing to me the reason Mandrake 10.1 doesn't honor the ~/.xsession file. I've seen various pluggable startup scripts similiar to what you've described for starting daemons in /etc/init.d and /etc/logrotate.d and for modules to load in apache and for xinetd, but I never imagined there was a similiar architecture for starting programs inside X displays. With your hints above I was able to see that in the /etc/X11/xinit.d directory which does not contain any files containing .xsession. Rather the directory contains these files: bluez-pin* mandrakegalaxy* menu* Mod_Meta_L_Disable* mouse_buttons* net_applet* numlock* s2u.sh* I'd always wanted to get certian users to initiate vncviewer sessions from a window-manager-less screen using kdm's auto-login feature so they could re-connect to their persistant vncserver session. Thanks to _YOU_ I think I can finally make this a reality! -Joe Baker Aw shucks. This'll go to my head. :) Happy to help. -Steve --- SF.Net email is Sponsored by the Better Software Conference EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile Plan-Driven Development * Managing Projects Teams * Testing QA Security * Process Improvement Measurement * http://www.sqe.com/bsce5sf _ 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-discuss] different logins for different folks
Joe Auerbach wrote: Interestingly enough, as far as I can tell, ubuntu has no .xsession file. I have no idea how it logs you into X, but there is no ~/.xsession. On my Debian Sarge system there's no ~/.xsession by default, but if I create one it will be honored. Try looking under /etc/X11 for the system wide Xsession script, the Xsession.d directory and Xsession.options. The options file specifically has a flag allow-user-xsession indicating whether or not the ~/.xsession file will be used. (also see man Xsession) This is on Debian, but I figure Ubuntu should be pretty similar. -Steve --- SF.Net email is Sponsored by the Better Software Conference EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile Plan-Driven Development * Managing Projects Teams * Testing QA Security * Process Improvement Measurement * http://www.sqe.com/bsce5sf _ 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-discuss] Server Configuration for 40 LTSP THIN CLIENTS .
Pratham wrote: [...] I am having following questions in my mind . 1) can we run all intel based applications on the AMD Processor (like sybase for i386 processor and so on ) 2) can a 32 bit application run on a 64 bit Processor 3) IS Red HAT 7.3 capable of detecting a dual processor , and will it support two 64 bit processor's. I'm by no means expert at this, but I can point out a couple things. AMD 64 should run just about anything compiled for x86. If you install a standard x86 based distribution you shouldn't even have to think about it, although you won't get the extra benefit of 64 bits (I'm using an Athlon 64 with plain vanilla Debian here). The issue comes up if you install a 64 bit distribution, but still want to run 32 bit applications as well. Then you have to make sure the 32 bit applications load 32 bit libraries, while the 64 bit applications get 64 bit libraries. There's a couple different approaches to this, one of them being running all the 32 bit apps in a chroot with their own libraries. My impression is the different distributions have different ways of setting this up. That's about the extent of my knowledge. -Steve --- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61 plasma display: http://www.necitguy.com/?r=20 _ 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
[Ltsp-discuss] Issue with modprobe.devfs
I was having trouble accessing the cdrom on a client machine running off a server with Debian Sarge. There wasn't even a /dev/hdc entry (or any other /dev/hd* entries) available. I was also seeing an error when the client booted up about the modprobe.devfs file. On a wild guess I copied modules.devfs to modprobe.devfs and it seemed to fix both problems. Was this just a typo, a fluke? -Steve --- SF.Net email is sponsored by: GoToMeeting - the easiest way to collaborate online with coworkers and clients while avoiding the high cost of travel and communications. There is no equipment to buy and you can meet as often as you want. Try it free.http://ads.osdn.com/?ad_id=7402alloc_id=16135op=click _ 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-discuss] Issue with modprobe.devfs
No, the client is running 2.4.26-ltsp-3. I notice when running Knoppix with 2.4.26 on this machine the cdrom is at /dev/scd0, but that's with the ide-scsi module. That was going to be my next line of experimenting. By the way, the client I'm testing this on is a Dell Optiplex Gxa. -Steve Jim McQuillan wrote: Steve, Are you using the 2.4 or the 2.6 kernel on the client? It seems to me that the problem you mention is a 2.6 issue. we're still working at integrating 2.6 into ltsp better. Jim McQuillan [EMAIL PROTECTED] On Wed, 25 May 2005, Steve Cayford wrote: I was having trouble accessing the cdrom on a client machine running off a server with Debian Sarge. There wasn't even a /dev/hdc entry (or any other /dev/hd* entries) available. I was also seeing an error when the client booted up about the modprobe.devfs file. On a wild guess I copied modules.devfs to modprobe.devfs and it seemed to fix both problems. Was this just a typo, a fluke? -Steve --- SF.Net email is sponsored by: GoToMeeting - the easiest way to collaborate online with coworkers and clients while avoiding the high cost of travel and communications. There is no equipment to buy and you can meet as often as you want. Try it free.http://ads.osdn.com/?ad_id=7402alloc_id=16135op=click _ 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 --- SF.Net email is sponsored by: GoToMeeting - the easiest way to collaborate online with coworkers and clients while avoiding the high cost of travel and communications. There is no equipment to buy and you can meet as often as you want. Try it free.http://ads.osdn.com/?ad_id=7402alloc_id=16135op=click _ 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
