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


Channel log from 18 August 2011   (all times are UTC)

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03:52
<bakytn>
Good [morn|even]ing!
03:53
is it possible to set wrong password timeout? (timeout if user provides wrong password)?
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05:04
<_aaron_>
hi
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05:30
<alkisg>
bakytn: pam_unix already enforces a delay of 2 seconds, if you need more, see: man pam_faildelay
05:30
(completely unrelated to ltsp)
05:31
<bakytn>
it's unrelated to ltsp? okay..
05:32
I have users with some printers! May I use configuration inheriting when it comes to such uesrs? like I create a section in lts.conf called "CANON-LBP1120" and specify per device using LIKE will it inherit it's configs?
05:34
<alkisg>
I didn't understand the "users with some printers", do you mean that you have printers connected to some thin clients?
05:36
<bakytn>
yes, say couple of users have USB printers and I don't to set type printer config per each such users
05:36
I'd just create a section and use LIKE
05:37
<alkisg>
lts.conf doesn't support per user settings, so can you please rephrase your question without saying the word "user"?
05:37
Use "thin client" instead
05:37
<bakytn>
sorry, ok. per device (thin client)
05:37
MAC
05:38
MAC_ADDRESS
05:38
<alkisg>
Yes, you can group common settings in a LIKE sections
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05:40
<bakytn>
thank you
05:40
(fighting with LBP printers :D)
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11:53
<Gremble>
heya all
11:54
today, I'm trying to mount a volume from outside a guest into that guest
11:54
while it's running
11:56
<Hyperbyte>
Cool. :)
11:56
Today I'm trying to see if 389 Directory Server is worth the effort.
11:57
<muppis>
Dealing with Heartbeat, DRBD, LVM and iSCSI
11:57
<Appiah>
it was kind of "meh" for me
11:58
<Hyperbyte>
Appiah, 389? Why?
11:58
muppis, is DRBD easy to setup? I've been looking into it and it seems pretty promising.
11:59
<muppis>
Hyperbyte, yes, it is easy.
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12:01
<Gremble>
"Note that this not work for adding a bindmount (-o bind) of a directory outside of a vserver into the vserver. For this, there is no alternative but restarting the vserver."
12:01
ah, but that's what I want to do!
12:01
damn
12:01
<alkisg>
"guest" means KVM guest?
12:05
<Gremble>
alkisg, no, linux-vserver guest
12:06
why would it mean KVM guest?
12:06
<muppis>
Hyperbyte, I think in my case most hardest part is set up the Heartbeat. :)
12:07
<alkisg>
I don't know, we're in #ltsp, I'd expect an "ltsp guest" :D
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12:16
<shawnp0wers>
Out of curiosity, does anyone know what part of the ltsp-server install process (in ubuntu) writes the nbd-server bits at the end of inetd.conf? In about half my installs, it doesn't get done, so nbd-server never starts. I have to manually add the line to inetd in order to get it to start.
12:16
I'm just curious what part of the install I'm messing up. :)
12:19
<alkisg>
shawnp0wers: are you using the alternate cd, or just calling `apt-get install ltsp-server` ?
12:19
<shawnp0wers>
The latter, usually install Ubuntu (or Edubuntu) desktop from a network install CD.
12:20
<alkisg>
In ltsp-server.postinst, there's this line:
12:20
update-inetd --group LTSP --add "9572 stream tcp nowait nobody /usr/sbin/tcpd /usr/sbin/nbdswapd"
12:20
<shawnp0wers>
Obviously it's not a *big* deal (apart from the first time figuring out what was wrong)
12:20
<alkisg>
Also, when one calls `ltsp-update-image --force`, inetd is updated
12:21
<shawnp0wers>
so the —force flag adds inetd stuff, interesting.
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12:21
<alkisg>
Now, ltsp-server.postinst does call ` ltsp-update-image -a i386; ltsp-update-kernels` but I'm not sure if that updates inetd.conf too
12:21
<shawnp0wers>
It does not, I'm certain of that. ;)
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12:21
<alkisg>
Are you using i386 server/i386 chroot?
12:21
<shawnp0wers>
Sadly yes, my servers are the last generation of 32bit xeons made
12:22
still suprisingly fast, but old
12:22
<alkisg>
Ah also normally it won't work, since on postinst you don't have a chroot yet
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12:23
<alkisg>
So let's get it again, from the start: 1) apt-get install ltsp-server, 2) ltsp-build-client --params
12:23
We don't really care about the (1) part, do we? It's the (2) part that needs to work
12:23
<shawnp0wers>
Well, I also normally cheat and rsync a good working chroot from another server, then ltsp-update-sshkeys, kernel, image.
12:24
<alkisg>
Ah, that's why then, because you're cheating :P :D
12:24
<shawnp0wers>
:D
12:24
<alkisg>
So, I'm guessing that ltsp-build-client does update inetd,
12:24
while plain rsync + ltsp-update-image doesn't,
12:24
<shawnp0wers>
Yeah, I'm certainly not complaining, I just wondered what part of the "normal" process did it.
12:24
<alkisg>
so you need to run ltsp-update-image --force instead
12:24
<shawnp0wers>
I'll have to try that.
12:25
I'm also not sure if the nbdswap line is added, but I think that one was there, just not the port 2000 line
12:25
<alkisg>
In any case we ltsp won't be using inetd in the future, so... :D
12:25
s/we//
12:25
<shawnp0wers>
oh great, so I just learn it..
12:25
;)
12:26
What will it use, again, curiosity.
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12:26
<shawnp0wers>
regular config file?
12:26
<alkisg>
nbd-server has support for name-based exports, so we'll be switching to using the nbd-server configuration file instead of inetd
12:26
<shawnp0wers>
gotcha. That was actually confusing as heck while I was troubleshooting nbd-server at first.
12:27
"But my WORKING servesr don't have a config file either, aaahhhh!!!"
12:27
:)
12:27
<alkisg>
hehe very common problem :)
12:28
<shawnp0wers>
I actually considered just using my one "really good" chroot, and setting up clustering.
12:29
But clustering still scares me.
12:29
And now that stgraber is at Canonical, I don't think he's working on cluster. So… I just keep multiple servers running, and manually load balance.
12:30
<veloutin>
shawnp0wers: there are still mgariepy and highvoltage that work on cluster I guess
12:31
s/work/could be working/
12:31
<shawnp0wers>
Oh, that's encouraging. I saw stgraber's blog post about stepping down, I wasn't sure if anyone else was picking up the reins. :)
12:32
Oddly, it was the web interface (which I think was one of its big advantages) that turned me off. I just want config files. ;)
12:32
<veloutin>
yeah, I actually worked for a few months on a new (forgive me for using that word:) ajax-ey control panel
12:33
but it was never completed and the financing stopped
12:33
<shawnp0wers>
I think a frontend to the config is a GREAT idea, it's just the lack of underlying files that gives me the willies.
12:33
Although admittedly, the lts.conf file is pretty small these days. :)
12:34
<veloutin>
well, it is pretty small, but when you have to manage small changes to it for hundreds of clients, it becomes annoying
12:35
<shawnp0wers>
Yes. I was still using 4.2 until this month, and THAT lts.conf file was huge.
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12:38
<shawnp0wers>
Oh, and alkisg, thanks for the help. :)
12:39
<_UsUrPeR_>
alkisg: ping?
12:39
sup shawnp0wers
12:39
<shawnp0wers>
Just setting up a couple hundred thin clients for school start
12:40
<_UsUrPeR_>
yay!
12:40
what release?
12:40
<shawnp0wers>
No more LTSP 4.2 here! :D
12:40* _UsUrPeR_ gasps
12:40
<shawnp0wers>
(ok, not entirely true, I have one 4.2 server running that boots those old tiny thin clients from you guys, they boot directly into rdesktop)
12:41
<_UsUrPeR_>
good place for 'em
12:41
<shawnp0wers>
They work surprisingly well for that.
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12:41
<_UsUrPeR_>
yeah
12:41
64 megs goes a long way for rdesktop
12:41
<shawnp0wers>
And I think they have a 233Mhz cpu
12:41
hardcore baby
12:41
:)
12:42
<_UsUrPeR_>
You know how they roll. Oldschool 233 mHz in tha hizzy
12:43
<shawnp0wers>
Every other thin client in the district is now running straight up edubuntu 10.04.
12:44
(I wanted a newer version, but LTS helps me sleep better at night.)
12:44
<_UsUrPeR_>
LTS is definitely worth it.
12:45
<shawnp0wers>
I *did* add the firefox-stable PPA, so we're running Firefox 6 now. 3.x was just getting long in the tooth.
12:46
<_UsUrPeR_>
When is school back in for you?
12:46
<shawnp0wers>
Day after Labor Day.
12:46
<_UsUrPeR_>
ok. Sounds like you're on track
12:47
<shawnp0wers>
I'm pushing it, but yeah, I'll be good.
12:47
Every year it's like this. I can't do it earlier, because they clean classrooms.
12:47
So if I set up rooms early, they'd rip them apart
12:47
so i get my servers ready
12:47
and wait until the last minute
12:47
then things go wrong, and I tweak my servers, etc, etc, etc
12:47
:)
12:48
<_UsUrPeR_>
yeah
12:49
I envision the classroom cleaning room as some sort of cold war gas mask flamethrower-wielding team
12:49
err classroom cleaning team
12:49
<alkisg>
_UsUrPeR_: pong?
12:49
<shawnp0wers>
They're about that gentle to be sure. I end up with a literal pile of hardware to sort out in each room.
12:50
<_UsUrPeR_>
alkisg: good morning! a question for you: you had mentioned the following yesterday: su - ${LDM_USERNAME} -c "$CLIENT_ENV $MY_LANG DISPLAY=$DISPLAY ICEAUTHORITY=$ICEAUTHORITY XAUTHORITY=$XAUTHORITY $LDM_XSESSION $LDM_SESSION"
12:50
where is that executed?
12:50
<alkisg>
in X95-run-x-session or similar
12:50* _UsUrPeR_ tips his hat
12:50
<_UsUrPeR_>
thank you much alkis
12:51
<alkisg>
_UsUrPeR_: but remember, you don't need that
12:51
You just need to set CLIENT_ENV with an env var from ltsp_config.d, and pick it up from the server,
12:51
OR do everything in an rc.d script similar to the one that does the gnome menus
12:52
The first, CLIENT_ENV, is just a 2 line script
12:52
<_UsUrPeR_>
alkisg: I am having trouble getting the CLIENT_ENV variable passed to the server, and need to investigate why that is
12:52
<alkisg>
_UsUrPeR_: what code are you using to detect multicore?
12:53
I.e. let's write that 2 line script. The first line is the condition
12:53
When do you want that env var to be set?
12:53
<_UsUrPeR_>
alkisg: actually, it's a particular unit type right now if [[ `cat /sys/devices/virtual/dmi/id/product_name` = "VS433" ]]
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12:54
<alkisg>
Don't rely on bash-isms, afaik [[ is bash-specific
12:54
<_UsUrPeR_>
I want it set just prior to the user logging in
12:54
this is an automatically logged-in client
12:54
ORLY
12:54
<alkisg>
OK, what env var do you want set?
12:54
<_UsUrPeR_>
didn't know that mattered
12:54
LTSP-ENABLE is a fine descriptor
12:55
<alkisg>
_UsUrPeR_: why not expose PRODUCT_NAME instead, and do the comparison on the server?
12:55
Isn't that more generic?
12:56
<_UsUrPeR_>
never even considered it. That is a really good idea
12:57
<alkisg>
OK, so create this file: /opt/ltsp/i386/usr/share/ltsp/ltsp_config.d/010-product-name
12:57
with these contents:
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12:57
<alkisg>
read PRODUCT_NAME < /sys/devices/virtual/dmi/id/product_name
12:57
export PRODUCT_NAME
12:57
Wait, you want that on the server,
12:57
so:
12:58
read PRODUCT_NAME < /sys/devices/virtual/dmi/id/product_name
12:58
test -n "$PRODUCT_NAME" && export CLIENT_ENV="$CLIENT_ENV PRODUCT_NAME=$PRODUCT_NAME"
12:58
These 2 lines should give your PRODUCT_NAME on the server session
12:59
(you need ltsp-update-image of course)
13:01
<_UsUrPeR_>
ok, put that in ltsp_config.d
13:01* _UsUrPeR_ is rebuilding now
13:02
<alkisg>
_UsUrPeR_: Hmm and just to be safe for the ltsp code that uses CLIENT_ENV, put a junk variable to ignore spaces, like this:
13:02
read PRODUCT_NAME junk < /sys/devices/virtual/dmi/id/product_name
13:02
test -n "$PRODUCT_NAME" && export CLIENT_ENV="$CLIENT_ENV PRODUCT_NAME=$PRODUCT_NAME"
13:02
E.g. my netbook has "Calistoga & ICH7M Chipset" as the product name, that would cause problems to the rest of the ltsp code
13:03
<_UsUrPeR_>
oh
13:03
indeed it would
13:04* _UsUrPeR_ re-rebuilds image
13:06
<alkisg>
Hehe, and an even better version: PRODUCT_NAME=$(tr -c [a-zA-Z0-9] _ < /sys/devices/virtual/dmi/id/product_name)
13:07
That makes sure that product name only contains alphanumeric characters
13:07
<_UsUrPeR_>
alkisg: ok, now I need to catch this on the server side
13:07
<shawnp0wers>
alkisg, your geek is showing. ;)
13:07
<alkisg>
Haha
13:07* _UsUrPeR_ covers his eyes
13:07
<alkisg>
_UsUrPeR_: now, login on a thin client, and open a normal terminal (not local)
13:07
And type: echo $PRODUCT_NAME
13:07
You should be seeing the product name, right?
13:08
<_UsUrPeR_>
heyyyyyyyyyy
13:08
yeah ^_^
13:08
<alkisg>
OK, your show from now on :)
13:11
<bobapple>
uhhm... may i ask what you are doing?
13:11
<alkisg>
Getting the thin client product name into an environment variable on the user session that runs on the server
13:12
<bobapple>
cool
13:12
why?
13:12
<alkisg>
To do different stuff on the server, based on the hardware of the thin client. Specifically I think _UsUrPeR_ wants to do something about the icewm localapps menu
13:13
<bobapple>
sounds interesting
13:13* _UsUrPeR_ is interested
13:13
<_UsUrPeR_>
got it working
13:14
8) AWWWWWWWWWWWW YEAHHHHHHHHHHHHHH
13:14
thanks alkisg
13:14
<alkisg>
You're welcome :)
13:22
_UsUrPeR_: don't forget to use that line instead, it's much safer: PRODUCT_NAME=$(tr -c [a-zA-Z0-9] _ < /sys/devices/virtual/dmi/id/product_name)
13:22
bye all
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14:04* Hyperbyte has been trying to get X11Forwarding working between two machines for two hours now...
14:04
<Hyperbyte>
Sometimes I really hate Linux. :(
14:06
... there... works! See, usually ranting to myself on IRC helps.
14:11
<bobapple>
:D
14:23
<Appiah>
:D
14:23
<Hyperbyte>
Appiah, you never answered my question! :)
14:24
Why was 389 "meh" for you?
14:25
<Appiah>
oh
14:25
Think this was 1 or 2 years ago
14:25
I was testing 389 for "ad intergration" purpose
14:25
both ltsp and non-ltsp use
14:26
but setting up the sync was awful and sometimes it just did not want to work , I ended up doing a samba domainjoin instead , but now there's likewise and that's about enough for my use cases
14:26
I think I reported some bugs concerning the 389 console too
14:28
so I've been sticking to openldap
14:29
trying to think back to that time.. think I tried to package it or contact people who were in the process of packaing to debian/ubuntu
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14:45
<Appiah>
https://bugs.launchpad.net/ubuntu/+bug/27463 and it looks dead =/
14:47
<Hyperbyte>
Well
14:47
I'm using Fedora as network server though
14:49
Ubuntu is my LTSP server. :)
14:50
<Appiah>
network as in firewall/nat?
14:52
<Hyperbyte>
Firewall, nat, dhcpd, asterisk, cups, httpd, hylafax, mysqld, named, nfs, smb/nmb, ntpd, sendmail, squid....
14:52
Yeah. :)
14:52
<Appiah>
everything!
14:52
:)
14:53
<Hyperbyte>
And ypserv as well, which I wanna replace with 389
14:54
<Appiah>
I see
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19:19
<jk-cheng>
hi there...
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19:20
<jk-cheng>
for thin client, should i use a server with gui or without gui???
19:20
<tl1000s77>
Hello everyone. Quick question, how would I install the Intel 910GL video driver for the thin client? I have a Dell SX280 and it runs fine but I can't change the resolution above 1024x768.
19:21
<alkisg>
jk-cheng: you need a desktop environment on the server
19:22
tl1000s77: what's the output of `xrandr` if you run it on the client?
19:23
<jk-cheng>
thanks alkisg...
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19:26
<tl1000s77>
alkisg: http://pastebin.com/QJkqVGju
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19:27
<alkisg>
tl1000s77: try running: xrandr --output VGA1 --mode 1360x768
19:27
Did the resolution change?
19:29
<tl1000s77>
yes
19:29
is 1360x768 the highest it will go?
19:30
<alkisg>
What's the highest resolution your monitors supports?
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19:33
<tl1000s77>
according to the ViewSonic manual, 1680x1050
19:33
I'm looking for 1280x1024 which it will support
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19:34
<tl1000s77>
Can I set the 1360x768 in the lts.conf?
19:35
<alkisg>
tl1000s77: try the following commands:
19:35
xrandr --newmode 1280x1024 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync
19:35
xrandr --addmode VGA1 1280x1024
19:35
xrandr --output VGA1 --mode 1280x1024
19:35
Yes, you can set XRANDR_MODE_0=1360x768 in lts.conf
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19:40
<tl1000s77>
Do I have to specify a display? I'm getting a usage error
19:41
<alkisg>
Usage error or X error?
19:41
Can you paste it?
19:42
<tl1000s77>
usage error...it shows usage: xrandr [options]
19:42
<alkisg>
In which command? The first one?
19:42
xrandr --newmode?
19:42
<tl1000s77>
yes
19:42
in --newmode
19:43
<alkisg>
alkisg@alkis:~$ xrandr --newmode 1280x1024 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync
19:43
alkisg@alkis:~$
19:43
Did you copy/paste the command? Or did you type it?
19:43
<tl1000s77>
type
19:43
<alkisg>
Check for typing errors
19:48
<tl1000s77>
great! it works. How would I make it stick?
19:49
and where did you look to get this information? 109.00 1280 1368 1496 1712 1024 1027 1034 1063
19:50
<alkisg>
cvt 1280 1024
19:50
To make it stick, read the lts.conf man page about the xrandr options, new mode etc
19:51
<tl1000s77>
will do. Thanks again for all your help
19:51
<alkisg>
You're welcome
20:00
<_UsUrPeR_>
hey
20:00
what's the echo return for the ldm username in ltsp?
20:00
is it $LDM_USERNAME?
20:02
<alkisg>
_UsUrPeR_: at which point? E.g. inside the session, $USER is defined normally...
20:03
<_UsUrPeR_>
say it's the logged in user from root?
20:04
<alkisg>
Err I didn't understand that
20:04
Maybe say more about what are you trying to do?
20:04
<_UsUrPeR_>
ok, as a script on the chroot, how do I see who is logged in?
20:05
to that specific client
20:05
<alkisg>
A script running from where?
20:05
<_UsUrPeR_>
and not "ls /home" or anything janky :)
20:05
<alkisg>
E.g. if it ran from cron.... you can have multiple ldm sessions, multiple users logged on
20:05
If it runs from rc.d, then yes, LDM_USERNAME is available
20:05
<_UsUrPeR_>
the script would be run from /usr/share/ldm/rc.d on the client
20:06
<alkisg>
Yup, LDM_USERNAME then
20:06
<_UsUrPeR_>
huh. Ok, strange
20:06
<alkisg>
You can also run something like: env > /tmp/my-environment, for troubleshooting
20:06
(from within the script)
20:07
<_UsUrPeR_>
gotcha
20:10
<tl1000s77>
alkisg: I noticed that there isn't a XRANDR_ADDMODE...is there something else that does the same thing?
20:11
atleast not on the http://manpages.ubuntu.com/manpages/lucid/man5/lts.conf.5.html
20:13
<alkisg>
tl1000s77: I think xrandr_newmode automatically calls addmode for all the outputs
20:14
So you don't need addmoe
20:14
*addmode
20:14
<tl1000s77>
so I should only need XRANDR_NEW_MODE_07 and then XRANDR_MODE_07
20:15
<alkisg>
Hm. Or not. Let me check the code...
20:19
I don't see the xrandr script calling --addmode... file a bug about that, or ask Gadi, if you see him here
20:21
<tl1000s77>
will do. Where can I get the code?
20:22
<alkisg>
/opt/ltsp/i386/usr/share/ltsp/xinitrc.d/I10-xrandr
20:23
Or, at:
20:23
!ltsp-source
20:23
<ltsp>
alkisg: ltsp-source: at http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/files.
20:26
<tl1000s77>
thank you
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23:53
<quietone>
i really need help with setting this up. I don't know how to setup up the dhcp etc