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


Channel log from 5 July 2010   (all times are UTC)

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01:51
<dobber>
my co-workers left the entire office without sound for the weekend :(
01:51
clever guys
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01:55
<dobber>
ltsp-update-image does not update the kernel from /opt/ltsp/i386/boot/ to /var/lib/tftpd/ltsp/i386/
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02:56
<frederickjh>
Anyone here had any success running minitube as a localapp?
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02:57
<dobber>
what is minitube ?
02:57
Youtube client
02:57
i can give it a go in a few minutes
02:58
<frederickjh>
http://flavio.tordini.org/minitube
02:58
It is for watching youtube videos
02:58
without flash.
02:58
Before nat was setup correctly it would say it could not reach a server.
02:59
Now it load as a local app. The pictures of the videos for your search load in the left hand panel but the video does not play.
03:00
The Opera web browser works fine with the same nat setup as a local app.
03:00
I setup the nat with the UbuntuLTSPThinClientHowtoNAT.
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03:04
<frederickjh>
Thanks dobber for the offer. Let me know how it goes.
03:04
<dobber>
in a minute
03:04
<frederickjh>
ok
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03:08
<dobber>
well i can start it
03:08
but it does not play
03:09
<frederickjh>
Yes, same here.
03:09
but on the server it works fine.
03:10
I am wondering if it is not using the same ports in and out and then the nating does not work to let the data back in.
03:11
<dobber>
no it does not play even if i start it from server
03:12
<frederickjh>
It works here on the server but with HD enabled the playing some times stops. Pause and play fixes that.
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03:40
<frederickjh>
Well, thanks for trying dobber. I need to figure out which ports it is using.
03:41
<dobber>
well i haven't debug at all
03:43
<frederickjh>
I see there is a more recent version. I may try and install that.
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03:52
<rickogden>
hi all, does anyone know what the package ltsp-server-standalone contains that ltsp-server doesn't in Ubuntu?
03:52
<ogra>
additional dependencies
03:53
use apt-cache show <package> to compare them
03:54
<rickogden>
thanks ogra :)
04:04
<frederickjh>
dobber looks like it may be a dependency problem. I found it in the comment on the minitube site. I am trying to install them to the image.
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04:14
<frederickjh>
Well, installing the gstreamer plugins and removing phonon got it to work as a localapp on the client but everything is blue!
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08:32
<komunista>
please, can somebody tell me what is difference in network usage (bandwith) between NFS and NBD for root dir (if any)?
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08:53
<johnny>
komunista, nbd is better
08:53
otherwise we wouldn't go through the hassle of rebuildig images
08:53
and just go b ack to using nfs
08:54
<komunista>
IMHO rebuilding is no problem after configuration is done
08:54
thanks
08:57
<johnny>
sure.. it's no problem, but still it's annoying during developing or upgrades :)
08:58
<komunista>
yes, during developing it must be horrible :-)
09:01
<johnny>
there is a way to tell it to use nfs , not sure if it still works tho
09:01
i haven't tried it in 3 releases
09:02
<komunista>
7 days agou aj switch from ubuntu to debian server, then default root is changed
09:02
and I have not testers (students) now :-)
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09:26
<vbundi>
hey I'm running ltsp-localapps firefox, when a user finds a PDF document they want to download/open, firefox doesn't have evince associated with it (I realize it's because it's not in the chroot where firefox is running) what's the best way to get around this... install evince in the chroot?
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10:08
<komunista>
yes
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10:59
<Yobi>
I am now trying to set up my LTSP server as a gateway for non-ltsp computers on the network, using dansguardian, and either squid or tinyproxy. Will this effect my LTSP clients, or can i use both these server roles on the same box?
11:00
<vagrantc>
thin clients are effectively logged into the server, from an http proxy's point of view
11:01
there's no technical reason why you couldn't run LTSP and any of those proxies
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11:14
<komunista>
imho environment variable http_proxy=127.0.0.1 is needed only
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11:54
<zeitsofa>
hello :) what can i do to use 2 monitor on a thinclient?
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12:47
<Yobi>
thanks for the help vagrantc. i have my thin clients all running fine after the install. i'm just trying to figure out how to point all non-ltsp clients through the proxy now
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12:47
<vagrantc>
to force it, you'd have to use a firewall...
12:48
<Yobi>
i'm seeing that now :(. i was hoping i could just point the dns settings at the proxy box or something to that nature
12:49
<vagrantc>
you might be able to set something in dhcp and something called "wpad" that i'm not very familiar with
12:51
<Yobi>
is there anyway that you now of to point a router to pass through a proxy. I have every other aspect of my network complete, but i'd like to let users connect wirelessly, if there is an effect way of filturing them
12:55
i'm considering just putting the wireless networks on a different subnet and running them through an untangle box or something, but i would rather use 1 server if you guys know of anything i can do...
12:57
<vagrantc>
search the interwebs for "transparent proxy" firewalling rules
12:58
<Yobi>
cool. i'll give it a go. i been at this for 7 hour, so ima break for lunch first :-P. Thanks again for the help
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15:47
<RicardoPerez>
Hi! I would like to change the hostnames of the LTSP clients (I'm using Ubuntu 10.04 LTSP) to something different than the current "ltsp21" or so. Where may I look at? Thanks in advance!
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16:34
<johnny>
RicardoPerez, you have to setup a dns server
16:34
and assign all yoru clients names there
16:35
<RicardoPerez>
johnny: thanks very much, I suppossed so, but... could it be a simpler way editing any configuration file or script?
16:38
<johnny>
nope
16:38
tha'ts how you do it
16:39
otherwise the change will get overwrittein every time you upgrade
16:39
<RicardoPerez>
johnny: that sounds reasonable
16:39
<johnny>
the best you could do would be to change to somethingelse21 ianyways
16:39
or you could rewrite the script
16:39
<vagrantc>
what?
16:39
<johnny>
if you wanna do that.. read the ltsp src
16:39
<vagrantc>
you can change it in lts.conf
16:39
<johnny>
!!!
16:39
<ltspbot>
johnny: Error: "!!" is not a valid command.
16:40
<johnny>
hah.. force the hostname in lts.conf
16:40
<RicardoPerez>
so setting up a dns server in the ltsp server should be the best option, right?
16:40
<johnny>
what's the variable for that?
16:40
<vagrantc>
i forget all the options, but you can tweak the hostname from lts.conf
16:40
<RicardoPerez>
vagrantc: is there a variable for that in the lts.conf?
16:40
<johnny>
i don't remember that one.. but maybe i'm just tired
16:40
man lts.conf
16:40
<vagrantc>
fairly recent
16:40
<johnny>
i know there's a username one, and a password one
16:40
but i don't remember a host one
16:41
<vagrantc>
not in lts.conf
16:41
<RicardoPerez>
i think it can't be done in lts.conf :(
16:41
<johnny>
ok
16:41
<RicardoPerez>
because i can't find any variable related with the hostname
16:41
unfortunately...
16:41
<vagrantc>
HOSTNAME
16:41
or HOSTNAME_BASE
16:41
or HOSTNAME_EXTRA
16:42
<RicardoPerez>
mmmmm
16:42
I just do man 5 lts.conf
16:42
and there's no HOSTNAME on it....
16:42
/HOSTNAME returns no results...
16:42
<vagrantc>
that's what i meant when i said "not in lts.conf" :P
16:42
<RicardoPerez>
oh, sorry :)
16:42
you're right, vagrantc :)
16:43
so.... where, then?
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16:43
<vagrantc>
been there since december of 2008, apparently :)
16:45
HOSTNAME will set the hostname, HOSTNAME_BASE defaults to ltsp, and HOSTNAME_EXTRA=mac or HOSTNAME_EXTRA=ip will determine weather the extra stuff is based on ip address or mac address.
16:45
<RicardoPerez>
vagrantc: that sounds great! are they in lts.conf?
16:45
<vagrantc>
so setting HOSTNAME_BASE=foobar and HOSTNAME_EXTRA=ip will get you hostnames foobarX where X is some number based on the ip address.
16:45
RicardoPerez: that's where you would set them
16:46
<RicardoPerez>
great! i'll try it right now! thank you very much!
16:46
and sorry for such a newbie question :)
16:46
<vagrantc>
it's a well hidden option, so it's no surprise.
16:47
sorry it's not documented better.
16:48
<RicardoPerez>
may I need to do "ltsp-update-image" after editing lts.conf?
16:48
<vagrantc>
not if you do it in /var/lib/tftpboot
16:49
<RicardoPerez>
great, i did so
16:50
<johnny>
i didn't even know about it .. and i've been hear for years :)
16:50
somebody needs to update the man page
16:51
<RicardoPerez>
aside from that, if I set up a dns server in my ltsp server, then my clients should see their new hostnames when issuing "hostname" command in a terminal, right?
16:52
(btw, the HOSTNAME_BASE & HOSTNAME_EXTRA solution works perfect! i just tried it) ;)
16:52
<johnny>
i have a feeling that solution is distro specific..
16:54
<vagrantc>
it uses /proc/sys/kernel/hostname
16:54
ah, but it's called from initramfs-tools hooks
16:55
<johnny>
that's even more of a reason
16:55
why i don't know about it :)
16:55
warren and i did our hostname hack in the init scripts
17:02
<vagrantc>
pushed documentation of HOSTNAME* in ltsp-docs.
17:02
<RicardoPerez>
vagrantc: great, thanks very much!
17:04* vagrantc might tag ltsp-trunk later today.
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17:09
<vagrantc>
stgraber: might consider tagging ltsp-trunk later today... don't know if you have anything pending...
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17:26
<RicardoPerez>
ummmm... why /etc/hosts in LTSP client containts a line that says "server-ip server"? why is always "server"? my LTSP server isn't called "server"...
17:29
<vagrantc>
hard-coded default.
17:29
it ensures a known name for environments without DNS.
17:30
<RicardoPerez>
can I change the "server" name to be the real server name?
17:31
<vagrantc>
not without a bit of hackery.
17:32
do you *need* it configured?
17:32
<RicardoPerez>
oh, i see... so the best is to have a dns server, i think....
17:32
no, actually there's no need to do so...
17:32
actually, that's only for curious :)
17:39
<faranda>
hi
17:41
how to export a different display variable in LDM ?
17:48
Sorry by my bad english. I need compress and catching the x traffic. Mi idea is a passing trough nxproxy or xdpc.
17:52
I did test the nxproxy and work well, in a simple environment. Now, i try to incorporate this in LTSP
17:55
afaik, I can put some script to start the proxies at both ends in /opt/ltsp/i386/usr/share/ldm/rc.d
17:58
I think my problem is with the server nxproxy...
17:59
someone has done something similar?
18:01
I need this to integrate thin clients on a network vpn low bandwidth, without losing ltspfs functionality.
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18:17
<vagrantc>
faranda: sounds interesting
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18:21
<vagrantc>
faranda: you could set it in the CLIENT_ENV variable.
18:22
faranda: in a hook in /opt/ltsp/i386/usr/share/ldm/rc.d
18:22
faranda: i.e. CLIENT_ENV="$CLIENT_ENV DISPLAY=foo"
18:24
<faranda>
for the test, I put this in /opt/ltsp/i386/usr/share/ldm/rc.d/S11-test
18:24
ssh -X -S ${LDM_SOCKET} ${LDM_SERVER} 'echo $DISPLAY > /tmp/test_display_server'
18:24
echo $DISPLAY > /tmp/test_display_thinclient
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18:27
<faranda>
what contain the $CLIENT_ENV variable ?
18:27
<vagrantc>
variables that are passed to the logged in session
18:30
<faranda>
this variable is defined in lts.conf ?
18:30
<vagrantc>
no
18:31
it's a variable that hooks in /opt/ltsp/i386/usr/share/ldm/rc.d/ can use
18:32
faranda: read /opt/ltsp/i386/usr/share/ldm/rc.d/X95-run-x-session
18:33
<faranda>
i dont have this script
18:34
<vagrantc>
it may be a different number. look at the scripts in /opt/ltsp/i386/usr/share/ldm/rc.d
18:35
<faranda>
S05-set-ltspfs_token S10-delayed-mounter
18:35
<vagrantc>
that's it?
18:35
<faranda>
i have ltsp-server 5.0.40 in Ubuntu 8.04 LTS
18:36
<vagrantc>
ah, 8.04 is getting pretty old
18:36
<faranda>
ls /opt/ltsp/i386/usr/share/ldm/rc.d/
18:36
yes, we need upgrade...
18:37
not this time...
18:40
could you send me this script ?
18:41
<vagrantc>
it won't do you any good if you don't have the whole infrastructure
18:42
it's just in the ltsp* and ldm* packages.
18:42
in newer versions
18:42
<faranda>
ok, i understand
18:43
i will install a new vm for the test
18:44
but I think they should be able to do anyway
18:45
<vagrantc>
hard to remember how long ago we started doing it that way...
18:45
that ltspfs files were there but none of the other files...
18:45
sounds like something was wron
18:45
wrong
18:47
<faranda>
ok, I will prepare the environment
18:47
Thanks for your help
18:47
<vagrantc>
good luck
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18:59
<highvoltage>
hey vagrantc
18:59
will you be at BTS this year?
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19:22
<vagrantc>
highvoltage: probably not. i'll be at the debian conference, though
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23:19
<vagrantc>
will be tagging ltsp 5.2.3 shortly...