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


Channel log from 19 May 2010   (all times are UTC)

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02:55
<alkisg>
I'm looking at a security problem, how can one take advantage of a suid root bash?
02:55
-rwsr-sr-x 1 root root 800K 2010-05-19 10:47 bash
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06:41
<AndyGraybeal>
how is the new 10.4 doing with LTSP?
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09:18
<rickogden>
hi all, is there any way of using LTSP-5 without altering the DHCP?
09:31
<johnny>
there's some dhcp proxy method, but i can't admit to having ready about it
09:31
!dhcp-proxy
09:31
<ltspbot`>
johnny: Error: "dhcp-proxy" is not a valid command.
09:31
<johnny>
hmm.. no page.. i wonder what it's called
09:32
<rickogden>
:/
09:33
I need to use the DHCP server to get the client IP... but I can't modify it
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09:38
<sbalneav>
rickogden: https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP
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09:38
<sbalneav>
!proxy-dhcp
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09:38
<ltspbot`>
sbalneav: Error: "proxy-dhcp" is not a valid command.
09:39
<sbalneav>
!dhcp-proxy
09:39
<ltspbot`>
sbalneav: Error: "dhcp-proxy" is not a valid command.
09:39
<sbalneav>
ltspbot`: learn dhcp-proxy as https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP
09:39
<ltspbot`>
sbalneav: The operation succeeded.
09:39
<sbalneav>
ltspbot`: learn proxy-dhcp as https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP
09:39
<ltspbot`>
sbalneav: The operation succeeded.
09:39
<sbalneav>
!proxy-dhcp
09:39
<ltspbot`>
sbalneav: "proxy-dhcp" :: https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP
09:39
<sbalneav>
Every day in every way we get better and better :)
09:40
<rickogden>
hehe
09:40
thanks
09:43
<johnny>
can you alias commands?
09:43
instead of maintaining 2 different lists?
09:43
that'd be neat
09:43
<sbalneav>
On the bot? Don't think so.
09:43
We're running supybot, which is very extensible.
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09:45
<sbalneav>
One supposes we could modify the infobot plugin to learn word1-word2-...-wordn type aliases to answer for any permutation of word[1..n]
09:45
Or I could just define the two words :)
09:45
<johnny>
until the urls change..and it becomes annoying
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09:48
<sbalneav>
That's why I keep the bot open so anyone can teach it things :)
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09:51
<highvoltage>
hi sbalneav
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09:54
<sbalneav>
highvoltage: Hey hey!
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09:58
<Lumiere>
sbalneav: that also gets us stuff like
09:58
!sbalneav
09:58
<ltspbot`>
Lumiere: Error: "sbalneav" is not a valid command.
09:58
<Lumiere>
or was it
09:58
!s
09:58
<ltspbot`>
Lumiere: "s" :: Scotty!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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10:05
<sbalneav>
yup
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11:57
<_UsUrPeR_>
sbalneav: ping?
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11:59
<gbit>
Hi all
11:59
Where I can find LTSP source for using in slackware linux?
12:01
<johnny>
it's not possib le to use ltsp in slackware until somebody ports the init scripts
12:01
and makes packages for the various files included upstream
12:01
it's all on launchpad if you search for ltsp
12:02
launchpad.net
12:03
<gbit>
thanks alot
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12:28
<grantk>
hello
12:30
curios if anyone here has fixed problem with ubuntu 10.04 and a GLib warning for getpwuid_r() on logon? I have tried setting nomodeset option in my /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default but have not gotten that to work.
12:31
Installed nscd(normally install but had missed up to this point) in hopes of fixing based on some other peoples issues with adobe products and the same error, no go there either.
12:32
tried no lts.conf, then lts.conf with some LDM_DIRECTX=True, X_COLOR_DEPTH=16
12:32
settings too.
12:33
heading to try Helmut Lichtenbergs solution to his problems from Ltsp-discuss mailing list yesterday right now.
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12:41
<grantk>
creating an chroot /etc/X11/xorg.conf from that maling list email stopped me from getting gdm altogether.
12:52
shooting for disabling compiz now, just found gadi reply to fun+x bug in ltsp5.2/Lucid
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13:05
<johnny>
neither of those are related to the glib warning
13:05
the glib warning has nothing to do with X
13:06
my guess is something is actually wrong on your server, and not the client.. or more likely
13:06
<grantk>
ahh, good
13:06
<johnny>
you're seeing the warning that is present for all lucid ltsp users
13:06
but because of other problems.. it's actually visible
13:06
and not at all the real problem
13:07
<grantk>
ohh, yeah, I had to take a video of the screen and pause it to actually see
13:07
<johnny>
it's probably a wild goose chase
13:07
<grantk>
ok, I can try setting up the server again, Local user is fine of course
13:07
<johnny>
check /var/log/ldm.log on the client
13:07
by either setting SCREEN_02=shell in lts.conf and checking the 2nd console via ctrl +f2
13:07
err ctrl + alt + f2
13:07
or, chroot /opt/ltsp/i386
13:08
and set a password via the passwd command
13:08
<grantk>
got that setup, I will have to get to a point where I can get back there
13:08
<johnny>
and then exit and rebuild the image via ltsp-update-image --arch=i386
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13:08
<johnny>
you could install openssh-server on the client and login that way
13:08
<grantk>
I did not have the forsight to save any of the logs before I did more damage:)
13:08
<johnny>
after setting the pasword
13:08
best bet then
13:09
is to start over
13:09
built a new client
13:09
<grantk>
I have seen others complain about kde, does this come around with gnome?
13:09
<johnny>
depends on where the error is
13:09
but it's probably not related to kde
13:10
<grantk>
ohh yeah, sorry, short term memory there
13:10
visible error not the problem!
13:10
<johnny>
kde is not well supported, because few of the developers use kde
13:10
or none even
13:10
it's not terrible problems with kde.. as far as i can tell.. it mostly works
13:11
i haven't used kde in > 6 years myself..
13:11
<grantk>
I had no problems with ubuntu 9.04 and kde
13:11
I would like to get away but the users would explode on trying to learn something new!
13:11
<johnny>
well, i heard there were problems with local devices like usb flash/pen drives
13:11
<grantk>
ahh, get lucky there, do not have to support that here!
13:11
<johnny>
i don't know about that.. it's the techie poeple that are the hardest to switch
13:12
<grantk>
I have tried to get a few to go but never had good luck
13:12
<johnny>
most the non techy people i know.. are the easiest to switch to linux in the first place
13:12
i can never convince any windowsish techie to switch
13:12
but the reasons for not switching are becoming smaller..
13:12
<grantk>
thats too bad
13:12
<johnny>
like the whole steam thing
13:12
it's always .. this doesn't work.. or i can't play games, etc
13:13
but.. steam is making it's way to linux.. so that's a good start
13:13
<grantk>
thats cool, I did not know that.
13:13
<johnny>
now adobe just needs to get smart
13:13
and port photoshop
13:13
or at least support running it in wine
13:13
then it would only be the pro audio peeps left..
13:13
<grantk>
I know I have seen people talk about older versions of photo shop running in wine but I never looked into it to see if it was difficult
13:14
ahh, Linux Journal was just talking about them pro audio peeps
13:14
apparently there are a couple of distributions gunning for them
13:15
I was able to get back to ldm on my client ldm log looks ok afaik, all processes exit with status 0 anyways
13:16
<johnny>
read the log..
13:20
<grantk>
ohh hey, it shows logged in succesfully, then goes to execute the rc files, starts the X session, does an ldm_spawn, then that pid exits with status 0, X session ended.
13:21
<johnny>
ah
13:21
try
13:22
ssh -X <youruser>@server startx
13:22
oh
13:22
you're not logged in as that user on the server are ou?
13:22
<grantk>
nope
13:22
I just tried and got denied by the Xserver, no permission
13:23
<johnny>
replace X with Y
13:25
<grantk>
similar problem
13:25
user not authorized, unable to connect to X server
13:27
hmm, I have Xaccess opened up to every host on my network so I would figure that would not become a problem.
13:27
<johnny>
you should probaly try with another user
13:27
a new one
13:27
not one of your existing ones
13:33
<grantk>
sorry, had a visitor
13:33
created a new user and had same issue, not authorized to run the X server
13:34
<johnny>
hmm.. but can you login as that user?
13:34
with ldm normally
13:34
<grantk>
yep
13:34
ohhh
13:34
<johnny>
if not.. you have a problem elsewise..
13:34
i haven't upgraded to lucid yet, doing that on sunday
13:34
<grantk>
did not check, sorry
13:34
hold on
13:35
i just tried running startx
13:35
from the ltsp terminal no, checking the virtual terminal now
13:36
same story on the virtual terminal, I will try and hunt something down about my X issues here. Thanks though
13:43
ugghh, sheepish explanation of the problem coming, but it has an excuse attached!
13:43
permissions on /tmp were 655
13:43
Xenserver template used, why would permies be set like that on /tmp. So I never checked!
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14:01
<reynolds>
anyone have an opinion about good server processors, for my 12 client lab?
14:03
<johnny>
it's all about the same
14:03
just buy the best you can afford
14:03
and make sure you have quite a bit of ram
14:04
<reynolds>
ok, any recommendations for GPU? I currently have a nvidia card and have had alot of problems.
14:17
<johnny>
no need for a gpu..
14:17
on the server
14:17
so. whatever..
14:17
intel video is pretty awesome for linux tho
14:19
<reynolds>
Ok Thanks.. no opinion regarding i7 or athalon?
14:20
quad vs processor power?
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14:21
<thunsucker>
Good Afternoon
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16:36
<mordocai>
Hello, i'm using ltsp on our testing server and we're working on moving it to production. I locked down everything i wanted to with gconf-editor but have found something that they can use to still get to a terminal. If they are using firefox(which i'd want them to be using) they can type file:///usr/bin/gnome-terminal to download the gnome-terminal binary. Then, they can click "Open containing folder" and modify the properties of t
16:36
have a terminal.
16:37
Since i'm trying to keep them away from a terminal, i was wondering if anyone knows of a way to prevent this.
16:38
This, of course, would work for most other applications i was trying to block them from, i would assume.n
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17:00
<mordocai>
Well, i think i'll actually submit this to the mailing list. I've got to run for now. If one of you thinks of anything, please e-mail me at mordocai@gmail.com. Thanks!
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18:28
<LedHed>
I'm new to LTSP. Has anyone created a LTSP console for tn5250?
18:32
<johnny>
nobody knows what that is
18:32
you're going to have to provide more details
18:33
<LedHed>
tn5250 is a terminal emulator? Its used to connect to an IBM AS/400 or iSeries
18:33
<johnny>
sure.. but the specs
18:33
<LedHed>
not sure what you're getting at
18:34
<johnny>
if it doesn't have at least 128mb ram and a 4mb graphics card, and is 450mhz or so.. it's not usable
18:34
or, if you want it completely console.. it should have 96mb ram
18:34
<LedHed>
its not a physical device.
18:34
<johnny>
oh.. then it's not really related to ltsp then
18:35
<LedHed>
what?
18:35
is this a hardware forum or something?
18:35
<johnny>
it's for thin clients that connect to X serveres
18:35
that network boot
18:36
that's all ltsp does.. it's just glue on top of ssh , X and other standard unix tools
18:36
read this
18:36
!docs
18:36
<ltspbot`>
johnny: "docs" :: For the most current documentation, see https://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_LtspDocumentationUpstream
18:36
<johnny>
that will tell you what ltsp does
18:36
<LedHed>
I know what LTSP does.
18:36
<johnny>
then.. your question is too broad
18:36
try to be more specific
18:38
<LedHed>
in lts.conf, SCREEN_01=shell, or SCREEN_02=TELNET
18:38
has anyone done SCREEN_02=tn5250
18:38
<johnny>
ah.. a screen script
18:38
much more specific
18:39
no.. never heard of one
18:39
might wanna ask on ltsp-discuss list.. never heard of that in this chat room
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18:54
<LedHed>
I've made changes to /tftpboot/ltsp/i386/lts.conf but the changes dont seem to effect the PXE clients. Is there something I need to change to make the clients grab lts.conf from the tftp server?
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19:08
<johnny>
LedHed, sounds like you made it unparsable
19:08
do you have a console?
19:08
type
19:08
getltscfg -a
19:08
if not, just paste your lts.conf to a pastebin
19:09
<LedHed>
johnny, run getltscfg on the client or server?
19:09
<johnny>
client
19:09
<LedHed>
says getltscfg is not currently installed
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19:10
<LedHed>
server is ubuntu if that makes any difference
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19:11
<LedHed>
johnny, I just took the [default] from usr/share/doc/lts/examples
19:12
<johnny>
no it doesn't
19:12
<LedHed>
I did change KBLAYOUT to 'us'
19:13
http://pastebin.com/d9eAhfLf
19:13
<johnny>
/usr/bin/getltscfg
19:13
if you don't have that.. then lts.conf changes will never get applied
19:14
you don't need LOCALDEV or sound.. because they default to true
19:14
<LedHed>
ya /usr/bin/getltscfg doesnt exist
19:14
<johnny>
then your install is not correct
19:14
<LedHed>
installed via package.
19:15
<johnny>
it should be in the client
19:15
installed what via package?
19:15
<LedHed>
in Ubuntu, apt-get install ltsp-server-standalone
19:16
<johnny>
so.. you don't have /opt/ltsp/i386/usr/bin/getltscfg ?
19:17
if you don't.. the the install is not finished
19:17
or amd64 if your chroot is amd64 and not i386
19:17
<LedHed>
/opt/ltsp/i386/usr/bin/getltscfg exists on the server
19:17
<johnny>
that's what gets run on the client
19:17
so.. you should have it locally.. because that's the exact copy of what you have on the server
19:18
<LedHed>
but /usr/bin/getltspcfg doesnt exist on the client
19:18
<johnny>
ltscfg
19:18
not ltspcfg
19:18
<LedHed>
right. typo
19:18
it doesnt exits
19:18
<johnny>
it must exist.. if anything else does
19:18
otherwise you seriously broke something
19:18
something i can't even imagine
19:19
i've idled in this chatroom for years.. the only distro to have that problem is gentoo.. and that was fixed quickly..
19:19
<LedHed>
I'll reinstall. maybe I botched something
19:19
<johnny>
i doubt it..
19:19
i think you're just typoing
19:20
<LedHed>
yup
19:20
/opt/ltsp/i386/usr/bin/getltscfg doesnt exist
19:20
sorry
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19:21
<johnny>
ah.. that's more likely
19:21
i thought you said that did
19:21
ok
19:21
<LedHed>
ugh
19:21
<johnny>
yeah.. rm -rf /opt/ltsp/i386
19:21
ltsp-build-client --arch i386
19:21
<LedHed>
oh gawd
19:21
that takes forever
19:21
ubuntu repos are slow
19:21
took me almost an hour to build
19:21
<johnny>
you must have picked the wrong ones
19:22
the packages download quick.. it's the rest that takes awhile
19:22
who knows what else is broken
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19:22
<LedHed>
when it downloads the generic kernel, it drops down to 1kbps
19:22
<johnny>
that's why i suggest you rebuild.. instead of trying to fix it
19:22
never happened to me
19:23
<LedHed>
ya, but I have terrible luck
19:23
<johnny>
there are some options to pick that let it cache the packages locally
19:23
if you read ltsp-build-client --extra-help
19:26
<LedHed>
yup its gonna take all night.
19:26
johnny, thanks for the help. I'll let it run over night. hopefully its done building by morning.
19:30
johnny, do you know how to use the --copy-package-cache option? Do Ineed to specify a path to store the cache?
19:31
--keep-packages, maybe thats what I need
19:31
<johnny>
no.. sorry.. but google probably does
19:32
<LedHed>
man pages dont have any info on the --extra-help
19:32
google doesnt have much either.
19:32
<johnny>
try harder..
19:32
i've seen examples
19:32
i just don't recall where
19:32
i know they exist, just try different queries
19:43
<LedHed>
johnny, could logging in as root cause problems?
19:45
<johnny>
logging in as root to what?
19:45
<LedHed>
to the client
19:45
<johnny>
ubuntu doesn't come with a root user
19:46
if you mean on the thin client console
19:46
not really
19:46
<LedHed>
all you have to do is set a password for it.
19:46
<johnny>
yes
19:46
i don't see why, but you shouldn't log into an X session as root
19:46
<LedHed>
there was no X session
19:46
it dropped to a command line
19:46
or shell
19:48
<johnny>
oh.. no.. tha'ts fine
19:48
<LedHed>
doesnt it start an X session by default?
19:52
<johnny>
oh
19:52
you mean you used ldm to log into root user account on the server?
19:52
<LedHed>
no
19:52
<johnny>
then you're not being specific enough
19:52
don't make me guess
19:53
<LedHed>
I booted the thinclient, a X login screen came up, I logged in as root, then the X session dropped to a shell
19:53
<johnny>
ok.. so you used ldm
19:53
well i have no idea abut that
19:53
never tried
19:54
i don't see why it would break anything else tho
19:54
<LedHed>
I didnt specifically set LDM, but that might be default behavior on Ubuntu
19:54
<johnny>
ldm is required for an ltsp session
19:54
there isn't any other choice than sdm.. which barely even exists and probably doesn't even work right
19:55
<LedHed>
you lost me.
19:55
Cant you set the SCREEN_?? = LDM or TELNET or RDESKTOP
19:56
oh never mind.
19:56
I'll try again tomorrow
20:05
<johnny>
sure, but ldm is default to 7
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