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


Channel log from 15 May 2010   (all times are UTC)

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08:33
<markit>
hi, I've a 2 nic interface server, one for ltsp cliens and one for wan (router) connection. I want to limit sshd to permit log of only one username from wan, but without preventing ltps clients log :) Is it possible? Don't want to put a long list in AllowUsers directive with all the ltsp users
08:33
wondering if I can tell to let everyone pass if coming from one interface (or subnet), while limiting to the specific username if coming from the other interface
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15:11
<myjess>
hello again.
15:13
I was wondering if anyone knows how to change whatever needs to be changed in chroot to make a usb sound dongle the default one, and also to make the usb dongle the default sound output.
15:15
I have already got the sound dongle as default using alsa-base, and created an /etc/asound.conf file with pcm and ctl point to HW 0. But every time I boot the client
15:15
I have to change the sound preferences - output tab to point to USB.
15:15
Thanks.
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15:18
<myjess>
I am running karmic by the way, so maybe all I have done is no good, since I think it was all for alsa.
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16:05
<langvann_>
Hey, im just done installling and setting up ltsp on my server.. The client wouldnt boot at all, so i checked with tftpd-pa, it doesnt start for some reason
16:05
May 15 22:50:17 server init: tftpd-hpa main process (16484) terminated with status 64
16:05
May 15 22:50:17 server init: tftpd-hpa main process ended, respawning
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16:10* Viduka
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16:11
<dcepticon>
hey all, i'm having a problem during client bootup "Cannot connect to nbd server"
16:22
<langvann_>
Im not getting any anwer wither
16:22
*answer
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18:44
<langvann_>
Anyone awake ?
18:45
<alkisg>
Hi
18:46
<langvann_>
Hi. Im trying to get ltsp up and running
18:46
everything seems fine on the server side.. however, when i try to boot up the client, i get an error telling me that tftp cannot connect
18:46
<alkisg>
And? any problems?
18:46
Ah. Distro/version?
18:47
<langvann_>
Ubuntu 10.4 server <- server and ubuntu 10.4 Desktop -> client
18:47
<alkisg>
ok, on the server, try the following commands:
18:47
sudo netstat -nap|grep :69
18:48
<langvann_>
nothing
18:48
<alkisg>
ok, next: cat /etc/default/tftpd-hpa
18:48
!pastebot
18:48
<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.
18:49
<langvann_>
http://ltsp.pastebin.com/aQBuxphG
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18:49
<alkisg>
OK you have a typo in DAEMON but it doesn't matter because it's commented out
18:49
<langvann_>
I also have tftp 69/udp
18:49
<alkisg>
Where? in netstat?
18:50
<langvann_>
in /etc/services.. not sure if it matters
18:50
<alkisg>
Nah
18:50
Next: grep tftp /etc/inetd.conf
18:50
<langvann_>
nothing
18:50
<alkisg>
OK. Seems good so far.
18:50
dpkg -l tftpd-hpa | grep ^ii
18:51
<langvann_>
ii tftpd-hpa 5.0-11ubuntu2 HPA's tftp server
18:51
<alkisg>
sudo start tftpd-hpa
18:51
<langvann_>
it is started
18:51
<alkisg>
Try booting the client
18:51
<langvann_>
PXE error, tftp cannot open connectino
18:52
<alkisg>
Try again the netstat command: sudo netstat -nap|grep :69
18:52
It should be showing the process now
18:52
<langvann_>
yes
18:52
it does
18:53
gonna try now
18:54
same error on the client
18:54
<alkisg>
ok, next: cat /etc/ltsp/dhcpd.conf (in pastebin)
18:54
<langvann_>
http://ltsp.pastebin.com/0byn8LVV
18:55
<alkisg>
filename "/opt/ltsp/i386/boot/pxelinux.0"; ==> that's not right in a normal installation
18:55
Change it to /ltsp/i386/pxelinux.0
18:56
and, the next one, change it to: /ltsp/i386/nbi.img
18:56
if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" {
18:56
filename "/ltsp/i386/pxelinux.0";
18:56
} else {
18:56
filename "/ltsp/i386/nbi.img";
18:56
}
18:57
Then restart the dhcp server: sudo invoke-rc.d dhcp3-server restart
18:57
<langvann_>
root-path is correct?
18:57
<alkisg>
Yes, but it isn't used. It's only for nfs.
18:59
Leave it though, as some clients will not accept a pxe offer if it doesn't contain a root path (that's rare, but it happens)
18:59
<langvann_>
ok
18:59
so i restarted the dhcp server
18:59
but nothing happened on the client
18:59
same error
19:00
<alkisg>
ok, next: ls -lha /var/lib/tftpboot/ltsp/i386/pxelinux.0
19:00
<langvann_>
-rw-r--r-- 1 root root 15K 2010-05-15 22:11 /var/lib/tftpboot/ltsp/i386/pxelinux.0
19:01
<alkisg>
Unless some mistake was made, your server seems OK now.
19:01
Does it have some firewall?
19:01
<langvann_>
No, not intentionally atleast
19:02
<alkisg>
OK. Is dhcpd running? sudo invoke-rc.d dhcp3-server status
19:02
<langvann_>
its running
19:02
<alkisg>
How many nics do you have, and what are their IPs?
19:02
<langvann_>
would you be comfortable with helping over ssh ?
19:02
<alkisg>
(ifconfig -a)
19:02
<langvann_>
I only have one nic, ip adress is 192.168.1.6
19:03
<alkisg>
langvann_: sure - vnc would be better, do this:
19:03
sudo apt-get install x11vnc
19:03
<langvann_>
Dont have a grapical interface on the server
19:03
<alkisg>
ah ok
19:03
Then ping me with the ssh details...
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19:16
<langvann_>
02:15 <alkisg> Erm what? Why don't you put them as usb drives instead?
19:17
Because i had to use the equipment I already had
19:17
The username and the passwords are the same for the client and server?
19:17
<alkisg>
Yes
19:18
If you only have one client, you could use a rw nfs root instead of ltsp
19:18
<langvann_>
Not sure how I do that .. ?
19:18
<alkisg>
I don't have a link handy, but I'm sure you can find lots of them on the net
19:19
<langvann_>
I guess.
19:19
<alkisg>
The hard part is when you need more than one client, because you can't export root rw then
19:19
For just one client it's very easy
19:19
<vagrantc>
though because it's so much harder, LTSP was invented, so it might actually be easier to just use LTSP :)
19:19
<alkisg>
vagrantc: for fat clients?
19:19
Nah...
19:19
<vagrantc>
ah.
19:20
we'll get there...
19:20
<langvann_>
hehe
19:20
<alkisg>
Sure :) But still, for one client, I believe it's much easier to try rw nfs
19:20
<langvann_>
just to proove im not a completely noob, i wrote this in bash: http://langvann.ath.cx
19:20
<alkisg>
(I've tried it last summer, it worked fine)
19:21
(with the stock ubuntu kernel)
19:21
(erm, and initramfs)
19:21
<vagrantc>
doesn't the initramfs default to ro root?
19:22
<alkisg>
? you can put nfsroot=xxx rw in pxelinux.cfg/default...
19:22
<vagrantc>
ah
19:22
<alkisg>
I didn't write all the details as it was worthless to me for just 1 client, but I didn't use anything from ltsp
19:24
<langvann_>
I will attempt nfsroot
19:24
tomorrow maybe
19:24
But i assumed with the fat client guide, that my computer does all the (computing?), while I only store data and have the / on the server
19:25
<vagrantc>
that's the idea
19:25
<alkisg>
langvann_: yes it should work fine on ubuntu 10.04 - if you find any problems with the fat client plugin ping me
19:26
<langvann_>
sure
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19:30
<jammcq>
hey all
19:31
<langvann_>
alkisg: Thanks alot. you saved my days.
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19:53
<alkisg>
vagrantc, could you tell me again why the new udhcpc isn't available in debian testing? (http://packages.debian.org/sid/udhcpc) - is it because it's about to freeze?
19:54
(I'm eagerly awaiting to see it in ubuntu maverick because the lucid one isn't working for me and it's forcing me to use ipappend)
19:54
<vagrantc>
alkisg: http://release.debian.org/migration/testing.pl?package=busybox
19:55
<alkisg>
ah, blocked by freeze, so when squeeze is out, it'll be in testing, right?
19:55
Thanks!
19:55
<vagrantc>
sure.
19:55
it might even go in before squeeze releases
19:56
<alkisg>
Is squeeze going to be released in the next couple of months?
19:56
<vagrantc>
doesn't seem likely
19:56
<alkisg>
Ouch
19:57
stgraber: does maverick sync from testing or from sid?
19:57
<vagrantc>
i thought they were syncing from testing, but i think you can request to sync something from sid explicitly
19:58
<alkisg>
I think that non-LTS releases sync from sid, and LTS releases from testing - but I may be wrong...
20:03
https://wiki.ubuntu.com/DebianImportFreeze => "Prior to this date, new versions of packages will be automatically imported from Debian unstable..."
20:06
Nice it should be in maverick in the next few weeks then. Thanks, good night all...
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20:11
<langvann_>
i cant sudo on my ltsp
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21:15
<langvann_>
How do I sudo in an ltsp env?
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22:31
<al34n1x>
Hi guys, i'm trying to get an LTSP classroom installed and i got some troubles when i tried to use the LDM_ALLOW_USER option on the lts.conf...the option never response...
22:31
I've re run the image and moved the file to the /var/lib/tftboot/ltsp/i386 dir as well
22:32
however the option never response
22:32
i'm running LTSP Server 5.1 on Debian Lenny
22:33
On the other hand i could restrict the DHCP server to match IP with Mac, i didn't have any problem there...the lts.conf file is the problem that i got
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