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


Channel log from 24 October 2012   (all times are UTC)

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03:22
<ltspuser_04>
i am having a time trying to get LTSP on CentOS 6.3 with a single nic. I am a Linux newb, but trying to figure this out to play around some linux terminal servers. Am i trying the impossible?
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11:07
<ltspuser_23>
Hi
11:08
I have an Ubuntu 12.04 with ltsp
11:08
and when I specify the Printer_0_Device and Printer_0_Type in lts.conf the terminal doesn't boot
11:08
stays on ubuntu splash screen
11:08
why?
11:15
anyone?
11:17
<andygraybeal_>
maybe no one is awake yet bro
11:17
<mgariepy>
https://bugs.launchpad.net/ltsp/+bug/996533
11:22
stgraber, is this fix uploaded in precise yet ?
11:23
<ltspuser_23>
thks mgariepy
11:29
and anyone knows which is the best flags to improve graphics on LDM??
11:31
<stgraber>
mgariepy: still waiting in the queue
11:31
quite a bit of backlog after the release...
11:31
<mgariepy>
well wasn't that uploaded before the release?
11:33
<stgraber>
yep, it was uploaded during BTS but was item 200 or so on the list, now it's number 7 assuming they review in the right order
11:33
so should be accepted into -proposed next time someone has time to review the queue
11:34
with UDS next week and some people traveling already, I wouldn't be on it being accepted this week or next
11:34
<mgariepy>
stgraber, can i have acces to view the queue ? i looked a bit but didn't find anything this morning.
11:34
<stgraber>
https://launchpad.net/ubuntu/precise/+queue?queue_state=1&queue_text=
11:35
<mgariepy>
ha, i was on that page but it was showing new, thanks a lot ;)
11:36
<stgraber>
np
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12:14
<ltspuser_23>
just one thing that I detected
12:14
if I have a printer configured
12:15
and if the printer is connected all work fine
12:15
but if we disconnect the printer and print 1 file it says that the print job was successfully done but the printer was disconected...
12:16
and when I connect the printer I lost the job
12:17
what I have to do is detect if the printer is connected or not and if it's disconnected the jetpipe process must be killed
12:17
if anyone have another solution please tell me
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13:31
<||cw>
ltspuser_23: other than "don't do that"? my guess is that jetpipe is very simple and assumes that you won't unplug printers
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13:36
<||cw>
http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/view/head:/client/jetpipe/jetpipe
13:37
looks so, there's no device file validation, and minimal error handling
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15:01
<solfan>
Does anyone have any links on how to install LTSP for thin clients on a server with 1 network interface? I can have a separate server with DHCP.
15:02
on a CentOS server.
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15:04* gvy installed own build more or less as usual
15:12
<mikec>
so I have a standalone Ubuntu 12.04 LTS machine able to login from lightdm screen using kerberos. User logs in, gets a ticket, and AFS tokens (our network file system). Configured all this with PAM. How can I port this idea over to a ltsp-cluster? Do I simply set up each application server to use kerberos authentication the same way as my test box? Or do I need to make any changes to the chroot environment on the root server? Thanks for any helpful di
15:12
rection.
15:12
<andygraybeal_>
wow your using AFS, you rule.
15:13
well, and kerb. you are definetly awesome.
15:14
<gvy>
mikec, if you're going to use thin clients then the homedirs are needed on the terminal server, thus "rather yes"
15:14
that is, if no localapps/fat clients
15:15
<mikec>
i have local unix users with homedirs in /home for now, but thats not our final solution since users already have homedirs in AFS. Eventually I'll get to those details. I would like, for now, to simply get the cluster users to be able to log in with kerberos
15:16
so if you logged in with your unix password, you wouldn't get a kerb ticket, but if you use your kerberos password, you get your kerb ticket and AFS tokens
15:16
<gvy>
XDMCP based scheme would just work as usual, don't know about ldm this way
15:17
<mikec>
I tried setting this up on my app servers but the kerb passwords are being rejected
15:17
<gvy>
my builds still use xdmcp and I'm happy. :)
15:17
<mikec>
so ltsp-cluster is using ldm, not sure if thats an issue or not
15:18
ubuntu 12.04 out of the box uses lightdm, which is working fine on my standalone non-ltsp box
15:20
<gvy>
well "ldm kerberos" does yield something
15:23
<mikec>
this seems to be close to the same problem I may be having: http://lists.debian.org/debian-edu/2010/07/msg00097.html
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15:38
<||cw>
solfan: do you also have a current PXE setup?
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15:53
<mikec>
yes
15:54
the ltsp-cluster works as it should out of the box, with local unix users on the applications servers
15:54
thin-clients boot, and i can log in using the local unix passwords that were used to create the local application server user accounts
15:54
but if the username is also found via kerberos, and the proper kerb password is used, the user should be able to log in
15:55
but can't right now with my cluster environment
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19:33
<ltspuser_18>
Hello. This is the first time I use this chat... How does it work? I have a question that I hope someone can answer.
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19:35
<effenberg>
just ask and wait patiently
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19:36
<ltspuser_18>
Is there a limit to the ethernet cable length? It seems that the thin clients won´t boot when the cable is about 20 meters or longer.
19:38
I have 30 thin clients, but only 20 are working. The ones that are farther from the switch aren´t able to boot, but they do when I connect them through a shorter cable.
19:41
<vagrantc>
probably just bad cables.
19:41
ethernet should be able to go ... 100 meters, i think?
19:43
https://en.wikipedia.org/wiki/Category_5_cable#Maximum_cable_segment_length
19:45
<ltspuser_18>
I used Cat 5 cables. When you say "probably just bad cables", what do you mean? exacly what would be bad since they are cat 5?
19:45
<vagrantc>
damaged cables
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19:46
<vagrantc>
or badly crimped connectors
19:47
ltspuser_18: try changing ports on the switch to verify if it's the cables ...
19:47
ltspuser_18: do those cables work at all?
19:47
ltspuser_18: try plugging in a regular computer, rather than a thin client
19:47
<ltspuser_18>
hmm. Actually, I made the cables, they are from a new roll I bought. Yes, they work
19:48
<vagrantc>
well, 20 meters is well below the distance they should be able to go...
19:48
<ltspuser_18>
I just want to make sure that there is no length limit. If there isn´t any, then I´ll have to test by trying different connectors, or cables, etc.
19:48
<vagrantc>
exactly
19:48
it should be able to go 100 meters.
19:49
<ltspuser_18>
Since you´re telling me that there is no limit, I´ll start testing....
19:49
Thank you so much for responding!!
19:49
<vagrantc>
good luck!
19:49
<ltspuser_18>
have a beautifull day. Greetings from mexico!
19:49
bye
19:55
<alkisg>
vagrantc: hi, any ideas why we haven't solved the /etc/profile bug? bugs.debian.org/cgi-bin/bugreport.cgi?bug=542270
19:55
...it sounds easy enough to just source it...
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19:56
<vagrantc>
alkisg: not sure...
19:57
alkisg: the purpose of /etc/profile is for login shells, really.
19:57
alkisg: do other display managers source it?
19:57
<alkisg>
vagrantc: yes, it's sourced on any kind of logins
19:57
And a graphical logic is still considered a login, doesn't need to be a shell one I think
19:57
*login
19:58
vagrantc: e.g. in fat clients, /etc/profile is sourced (by su -)
19:58
<vagrantc>
ok, if other display managers do it, then i guess we should to. it's not like it's a cliff or something.
19:58
<alkisg>
LDM runs su instead of ssh, so it gets sourced
19:58
<vagrantc>
"su -" is a login shell.
19:58
<alkisg>
And ssh bash -l is as login shell as well
19:59
Other DMs do the same afaik
19:59
<vagrantc>
the file /etc/profile itself suggests it's for shells, but if your session is run by a shell, i guess.
20:00
if it's the wrong thing to do, i want to make sure we're all doing the wrong thing :)
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20:03
<alkisg>
!learn alkisg-todo as Check ltsp bugs in debian.org
20:03
<ltsp>
The operation succeeded.
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20:03
<vagrantc>
!vagrantc-todo
20:03
<ltsp>
I do not know about 'vagrantc-todo', but I do know about these similar topics: 'vagrant-todo'
20:03
<vagrantc>
!vagrant-todo
20:03
<ltsp>
vagrant-todo: (#1) pxemenus, or (#2) tweak debian/rules to install appropriate update-kernels.conf, or (#3) update-kernels fix memtest support or drop it
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20:04
<effenberg>
2 much ors in your todo
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23:12
<Takyoji[laptop]>
Quick and (hopefully) simple question: how does a person get better video playback on a thin client (RaspberryPi in this case, with BerryTerminal; for the details)?
23:14
Or is it a limitation with the concept?
23:26
<andygraybeal_>
how do i test the dhcp server in ltsp?
23:26
other than trying to boot a machine offa pxe? is there an in-between troubleshooting step?>
23:27
oh i remember a setting i need in dhcpd.conf the 'eth1' goes somewhere
23:33
hmm i have isc-dhcpd and dhcpd3 ... which one is the right one?
23:33
dhcp3-server is the one in my ubuntu 10.04
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