IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 26 August 2010   (all times are UTC)

00:08
<intelliant>
cyberorg: ^^
00:08
i think the auto-logoff has been nailed down to the ltsp-cluster-accountmanager now
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00:44
<intelliant>
found the cause and the solution here - https://answers.launchpad.net/ltsp-cluster/+question/101648 , running pam-auth-update auto-fixed it. Will be testing with the real thin-clients in about an hour now that ssh login is persistent.
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04:16
<Jagostu>
Hello
04:18
<Appiah>
\o
04:20
<Jagostu>
Appiah
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04:43
<Appiah>
japerry: ?
04:43
ops
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05:18
<cemc>
hi
05:18
I have an LTSP setup with 10.04. the clients are turned off a lot, without shutdown and I have a bunch of nbd-servers lying around
05:20
err, sorry for the copy-paste... that would be LTSP setup on an Ubuntu 10.04. the thin clients are just turned off, without shutdown, and this leaves a lot of nbd-server processes on the server, just sitting there
05:22
<alkisg>
they should automatically die after 2 hours
05:30
<cemc>
alkisg: I have like 30+ from yesterday, which is a lot more than 2 hours. and no thin client is powered on right now
05:30
<alkisg>
cemc: can you paste your /etc/hosts.allow ?
05:30
!pastebot
05:30
<ltspbot>
alkisg: "pastebot" :: The LTSP pastebot is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebot, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
05:31
<cemc>
http://pastebin.ubuntu.com/483888/
05:31
I didn't touch this
05:31
<alkisg>
Are you using NBD_SWAP?
05:32
(or, upload the result of ps -ef|grep nbd)
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05:33
<cemc>
yes to NBD_SWAP and http://pastebin.ubuntu.com/483890/ (the list goes on for a couple of pages)
05:33
<alkisg>
OK, the old processes are there because you didn't put nbdswapd to hosts.allow
05:34
nbdswapd: ALL: keepalive
05:34
nbd-server 0 /tmp/tmp.YRPAN9VDg3 -C /dev/null ==> swap process, because of hosts.allow
05:34
nbd-server 0 /opt/ltsp/images/i386.img -r -C /dev/null ==> serves the chroot, should be less that 2 hours old, right?
05:35
(2 hours 11 minutes to be precise)
05:37
<cemc>
yes, that's ok, it has 13:04 as star_time and now it's 13:37
05:37
can I adjust the timeout to be like 1h or less?
05:38
<alkisg>
You could, but I'm not sure it's worth it
05:38
(it would affect all tcp keepalive timeouts)
05:40
So just update your hosts.allow and manually kill all processes > 2 h old
05:40
(the dead ones, I mean)
05:41
<cemc>
alright, I'll do that. thanks
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08:06
<denisesball>
alkisg: you around?
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08:51
<alkisg>
denisesball: pong
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10:05
<Kyle__>
I don't suppose anyone here has ever tried to run ltsp inside of a VM?
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10:40
<Appiah>
Kyle__: yes it works
10:41
(dont see why it would not)
10:42
<Kyle__>
Appiah: Just wondering if there were any gotchas, since I'm moving it over to one now (out of necessity).
10:43
<Appiah>
well virtualizaion softwares such as Xen and Vmware are so good these days...
10:44
and they have their own "inbuilt" terminal servers and so on now
10:44
so need to worry about moving stuff to virtualplatforms :)
10:47* Kyle__ was actually using Proxmox in this lab, mostly because his predecessor bought schitty computers that don't have virtualization extentions.
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10:57
<riccardo>
Hi, I'm having an issue with local printing on a specific client. Local printing works with the other thinclients. I get the "host busy" error in cups but if I execute jetpipe /dev/lp0 9100 on the tc, jobs start to be printed.
10:59
<Appiah>
Kyle__: awww =/
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11:37
<dgroos1>
Hi.
11:38
I've got a lab of thin clients running off an Edubuntu lucid server.
11:39
Sound is playing locally and that's great. What I want to do is make it so that students can plug in a headphone jack and that will cut out the sound to the speakers and work through the headphones.
11:39
Right now, nothing happens when I plug in the headphones.
11:40
Any ideas?
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11:57
<Kyle__>
dgroos1: That sounds like either an issue or a setting for the client distro.
11:58
dgroos1: What client distro are you using? [U|K|Edu]buntu, Centos, Fedora?
11:58
You may have to try installing streight onto that hardware once, to figure out the tweeks/settings/fixes you need. Sorry.
11:58
<dgroos1>
Kyle_ Thanks for the response. I'm using Edubuntu with GNOME.
11:59
<Kyle__>
dgroos1: K. Have you ever installed that straight onto the hardware your'e using?
11:59
<dgroos1>
Kyle_: Yes, though I didn't test the sound.
12:00
You mean on the hardware I'm using for the clients, right?
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12:00
<Kyle__>
dgroos1: Yea, that's what I mean.
12:01
Humm. Maybe you need to? I have had the occasional piece of hardware that didn't switch over to headphones properly, so I know it's possible for it to happne, and to fix it.
12:03
<dgroos1>
OK Right now I'm setting up a stand alone and will test sound on it and get back to you.
12:04
<Kyle__>
K. You may want to head to the ubuntu channel or web forums, once you nail down exactly what the problem is and the hardware, etc. That's what I did, and had good luck doing it.
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12:09
<dgroos1>
Will do and If it seems to be an LTSP issue I should probably stay here, right?
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12:18
<Kyle__>
dgroos1: Yea.
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12:46
<anivair>
So here's a quick problem. I have a lot of 1200 series thin clients (the red box) and I just got a 1720 machine (basically a nice 1520). The red boxes work fine, but they never grab dhcp on the first try. they always drop to the second attempt.
12:46
but the new machine only tries once and then tells me system disk error, so they won't boot
12:46
I need to either fix the dhcp issue or make the 1720 look for dhcp twice, maybe?
12:51
restarted the dhco service: no change.
12:51
dhcp, even
12:53
<alkisg>
anivair: by "they never grab dhcp", you mean the pxe request or the inintramfs dhcp request?
12:53
(and, distro/version?)
12:54
<anivair>
pretty sure I mean the dhcp request. it times out on the thin client screen. and I'm on ubuntu 9.10 running ltsp 5
12:54
<alkisg>
There are 2 dhcp requests
12:54
That's why I'm asking... which of those 2?
12:54
When a client boots, it makes a dhcp request to load the kernel
12:55
Later on, in the initramfs, it makes another dhcp request.
12:55
(to properly initialize the network, after the pxe booting stuff)
12:55
Which of those 2 requests are you talking about? They're different problems...
12:56
(probably the PXE one...)
12:56
<anivair>
I see. the first one, everyone bombs out on (on hte red machines). It doesn't pick up will the second one
12:56
on the new machines, there is only one request
12:56
er ... hold on, let me check
12:56
I see what you're satying
12:57
I think it's the first one, then. the kernel never loads
12:57
<alkisg>
OK. How is your wiriing? E.g. 2 nics, 1 only for the ltsp clients on a separate switch, etc etc...
12:57
And also post your /etc/ltsp/dhcpd.conf
12:58
<anivair>
1 nic for the server (thin clients are also using just one).
12:59
<alkisg>
Maybe you have another dhcp server around, that offers dhcp requests that lack the "boot filename" field?
13:00
(and so the clients ignore them and try to boot from disk?)
13:00
E.g. on your router...
13:00
<anivair>
http://anivair.com/downloads/ltsp_dhcpd.conf
13:00
let me go take a closer look real fast
13:01
<alkisg>
dhcpd.conf looks fine
13:02
<anivair>
the first one that's failing lokos like PXe. the error say PXE-E51
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13:03
<anivair>
it's the same on the red machines, they just try to pull it twice
13:04
when the first one fails, they try again, but it's still PXE-E51
13:04
<alkisg>
Check if you have some other dhcp server around, that messes with them
13:04
<anivair>
I should not. hold on a sec
13:12
nope, just one (according to dhcping)
13:15
<alkisg>
Can you try booting a client with gpxe? (e.g. from a usb stick?)
13:15
!gpxe
13:15
<ltspbot>
alkisg: "gpxe" :: the successor to etherboot (http://etherboot.org). To download bootable floppy, cd, usb, kernel etc images, visit http://rom-o-matic.net/
13:19
<anivair>
no hash drive on site. I would do it in the morning, though.
13:23
<alkisg>
Wireshark / tcpdump might also help, but gpxe is better for tests like that
13:24
<anivair>
I can wait till morning. no rush
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13:42
<agtilden>
i'm looking into a wyse S50/ltsp solution
13:42
and i'm wondering about a reliable way to identify which terminal an X session is running on
13:43
is there a good way for an application to find out what terminal the operator is sitting at?
13:43
<alkisg>
echo $LTSP_CLIENT
13:44
But why would it need to find out the terminal?
13:44
<denisesball>
alkisg: missed you earlier. we talked about LDM_LIMIT_ONE_SESSION=True yesterday, but it doesnt seem to be killing old processes on new login. LDM_LIMIT_ONE_SESSION_PROMPT doesnt ask either, am i missing something?
13:45
<agtilden>
the application i'm talking about needs to know about the physical desktop the person is sitting at
13:45
to route phone calls to an extension
13:45
alkisg: thanks
13:45
what's actually stored in $LTSP_CLIENT?
13:45
<alkisg>
The ip address of the client
13:46
There's also LTSP_CLIENT_HOSTNAME
13:46
denisesball: it should, check /opt/ltsp/i386/usr/share/ldm/rc.d/S15-userLoginCheck for details
13:46
<agtilden>
hmm -- so from IP i'll have to poke DHCP to get the mac addr or something
13:47
<alkisg>
You need the mac address? Well, you could also assign static hostnames, if you want, and check LTSP_CLIENT_HOSTNAME..
13:47
(in dhcpd.conf or in lts.conf)
13:47
<agtilden>
that's a good point -- might be the same amount of work from an admin perspective
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13:48
<alkisg>
agtilden: so that extension runs locally on the client?
13:48
<agtilden>
i just need some way to correlate the running application with a physical inventory and geographic location
13:48
<alkisg>
as a localapp?
13:48
Ah, ok
13:48
<agtilden>
the extension would be for a hardphone
13:49
<alkisg>
It's easy to add a LTSP_CLIENT_MAC if that helps, but I think hostnames would be easier
13:49
(same work, but would make more sense managing hostnames than mac addresses)
13:49
<mistik1>
hello ltsp'ers
13:53
<denisesball>
alkisg: yeah seems like it should work then. if i just reboot the terminal i see it leaves a lot of processes. when i log back in they ar doubled:
13:53
$ ps -eo user:20,args | grep testagent | awk '{print $2}' | sort | uniq -c | grep nautilus
13:53
3 nautilus
13:53
3 nautilus procs running for that user now
13:53
does it onli kill certain procs?
13:55
<alkisg>
Afaik it kills all the old processes. If you put LDM_LIMIT_ONE_SESSION_PROMPT=True, do you get a prompt?
13:56
<denisesball>
alkisg: nope, which made me think it wasnt working at all
13:56
<alkisg>
Maybe your lts.conf doesn't reach the clients then?
13:56
Try getltscfg -a from a localxterm
13:56
!localxterm
13:56
<ltspbot>
alkisg: "localxterm" :: while sitting on a thin client, open a gnome terminal. In that, run: ltsp-localapps xterm. An xterm will open. That xterm runs locally, so any commands you enter there are executed directly on the client.
13:56
<denisesball>
it definitely does because i have lots of other settings in there
13:57
<alkisg>
Which distro/version is that?
13:57
<agtilden>
alkisg: when you say "easy to add" do you mean as a new feature to ltsp or easy to add to my local ltsp config
13:57
<denisesball>
$ egrep 'SCREEN_07|LDM_LIMIT_ONE_SESSION' /var/lib/tftpboot/ltsp/i386/lts.conf
13:57
SCREEN_07=ldm
13:57
LDM_LIMIT_ONE_SESSION=True
13:57
i definitely have a console on tty02 so that works, ldm theme works
13:57
1 sec ill try what u said
13:58
<alkisg>
agtilden: your local config, I don't know if there's enough interest to put it upstream
13:58
<agtilden>
alkisg: thanks -- as you can tell I'm in the EARLY stages here
13:58
<denisesball>
that was supposed to say "SCREEN_02=shell", i grepped the wrong setting, but thats also in there
14:00
alkisg: getltscfg - http://pastebin.com/uuJiqPwm
14:00
also this is ubuntu 10.04
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14:01
<alkisg>
denisesball: your getltscfg looks ok, afaik it should be working
14:01
Gadi: any clues? ^^^
14:02
<denisesball>
i dont need ltsp-update-image right?
14:02
<alkisg>
No
14:03
<denisesball>
as far as my testing, all i do is reboot the term while logged in
14:03
i should get a prompt with LDM_LIMIT_ONE_SESSION_PROMPT=True right?
14:03
<alkisg>
Logoff / logon should also do it
14:03
Yes
14:03
<denisesball>
wouldnt logoff itself kill the procs though? i thought it had to be an unclean exit
14:04
<alkisg>
Right, sorry
14:04
kill X then
14:04
<denisesball>
i just rebooted the terminal while logged in
14:05
$ ps -eo user:20,args | grep testagent | wc -l
14:05
62
14:05
obviously there are still a lot of leftover procs
14:05
$ egrep 'LDM_LIMIT_ONE_SESSION' /var/lib/tftpboot/ltsp/i386/lts.conf
14:05
LDM_LIMIT_ONE_SESSION_PROMPT=True
14:05
i have it set in my lts.conf
14:05
just logged in, didnt get any prompt
14:05
$ ps -eo user:20,args | grep testagent | wc -l
14:05
84
14:06
and now theres 84 procs
14:06
<alkisg>
It sounds like a bug in S15-userLoginCheck, maybe you could file a bug for that
14:06
<denisesball>
maybe thats why its not in the manual :p
14:10
<alkisg>
Nah, the docs are always behind
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15:11
<denisesball>
what is the best way to stop ica from running?
15:12
i removed it from /etc/xdg/autostart/ica.desktop but now users are getting errors (prob cuz gnome is trying to start it on login.) i remove italc-client and defunct procs are going nuts
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15:36
<dgroos1>
Kyle_: Thanks for the idea, I assembled a computer, installed edubuntu lucid no it, and finally got sound working on it, both speakers and headphones. Then,
15:37
via same process, I got them working on thin clients as well, though took some firefox restarting.
15:37
:)
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15:44
<Kyle__>
dgroos1: Cool!
15:44
At least thing are going well for someone today :)
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16:07
<alkisg>
denisesball: removing ica (or purging italc) should do it, what errors are you getting?
16:08
<denisesball>
alkisg: oh boy was that a disaster
16:09
i removed /etc/xdg/autostart/ica.desktop cuz i didnt think it was necessary and users kept getting errors "The ISD-Server couldn't be started because port 5800 is already in use. Please make sure that no other application is using this port and try again." He gets this upon every reboot and his mouse blinks and jumps all over the screen making it impossible to use."
16:09
so i apt-get removed italc-client and thge defunt process went insane
16:09
i had a load of 15, thousands of defunct procs
16:09
so i reinstalled italc-client and all was ok
16:11
<alkisg>
Ah, all well now then
16:11
ica is necessary, it's the main italc client process
16:13
<denisesball>
its used by ltsp?
16:13
<alkisg>
It's used by italc.. if you don't want italc, you can remove it (italc-master and italc-client)
16:14
LTSP doesn't install italc by default, someone installed it manually
16:14
http://italc.sourceforge.net/
16:18
<denisesball>
i certainly didnt install it
16:18
<alkisg>
Is that edubuntu or ubuntu?
16:18
<denisesball>
ubuntu
16:18
<alkisg>
Then it's not preinstalled
16:18
Run: aptitude why italc-master
16:18
<denisesball>
italc-master isnt even installed
16:19
<alkisg>
Heh
16:19
<denisesball>
$ dpkg -l | grep italc
16:19
ii italc-client 1:1.0.9.1-0ubuntu18 Intelligent Teaching and Learning with Compu
16:19
ii libitalc 1:1.0.9.1-0ubuntu18 Intelligent Teaching and Learning with Compu
16:19
<alkisg>
Fun
16:19
<denisesball>
$ aptitude why italc-client
16:19
Unable to find a reason to install italc-client.
16:19
<alkisg>
Well, now that you installed it manually I don't know how can you find out why it got installed
16:19
You purged & installed it, so it won't give you the "original" reason
16:20
<denisesball>
i ran that on a different server i never purged it from
16:20
<alkisg>
Then it's been manually installed
16:20
<denisesball>
mustve been a dependency for something
16:20
<alkisg>
No, aptitude why should have told you if it was a dependency
16:21
E.g.: aptitude why gedit
16:21
i ubuntu-desktop Depends gedit
16:21
<denisesball>
theres nothing in /var/log/apt about italc
16:22
<vagrantc>
how about /var/log/dpkg.log*
16:22
<denisesball>
nuthin
16:23
<alkisg>
apt-cache rdepends italc-client: italc-master edubuntu-desktop-kde edubuntu-desktop
16:23
So if you didn't install one of those 3, I don't see how it would get installed automatically
16:24
<denisesball>
italc-master isnt installed and im not running edubuntu so no idea
16:25
is there a way to see what date a system was installed?
16:27
im out of here, i talk to you guys tomorrow
16:27
<alkisg>
bb
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19:42
<sergio>
hello to everyone.
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19:44
<sergio>
I installed today ubuntu maverick with ltsp 5.2 and the terminals are not available to anyone running a little help?
19:44
the error is:
19:45
this kernel requires the followings features not present on the cpu: cmov
19:45
unabled to boot - please use a kernel appropriate for you cpu
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20:28
<Joe__>
Hi all!
20:29
Anyone have any luck with Edbuntu Live CD using LTSP from the live CD version?
20:29
I don't seem to get a DHCP responce on the PXE client.
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20:38
<wolfravenous>
anyone in here that can lend a hand with edubuntu and ltsp for a teacher who is a newbie to edubuntu, I had exp w/ k12ltsp 5 years ago, but want to run edubun now and it has me discombobulated.
20:40
I installed the LTSP package right after installing the Edubuntu package from the live DVD, but how can I tell if I have a working LTSP server??? My test thin client can't seem to find it.
20:43
Can anyone tell me how to check to see if my server is broadcasting DHCP on Eth0???
20:44
I know eth1 is working cause I am sending IRC messages on it, heehe!
21:05
<Kyle__>
Errr, does anyone know the proper parameters to pass openssl to it generates passwords you can give on the command line when batch adding users?
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21:10
<wolfravenous>
Can anyone tell me how to check to see if my server is broadcasting DHCP on Eth0???
21:17
<Kyle__>
wolfravenous: Do you have multiple nics in that box?
21:18
<wolfravenous>
yes I have a 10/100 that is eth1 and a Giga switch that is Eth0... I need to know if it is broadcasting DHCP on the Giga card eth0
21:19
<Kyle__>
and your dhcp config is ambiguous?
21:21
try running netstat -l, see if anything is using port 67 (I think thta's it)
21:23
<wolfravenous>
see here is the problem, system keeps changing the name of my card.
21:24
Kyle: can I message you directly to explain what I did that I think is messing everything up?
21:24
<Kyle__>
Sorry, I gotta jet to make my train.
21:26
<wolfravenous>
ok, thanks
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