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


Channel log from 24 November 2010   (all times are UTC)

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08:05
<AndyGraybeal>
what is the option "TIMEZONE" in lts.conf if i am in EST ?
08:05
is it TIMEZONE=EST ?
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08:09
<biomorph_>
I have a real problem here. I have just done an ltsp-update-image and now nobody can log on.
08:09
Would the next step be to do ltsp-update-sshkeys ltsp-update-kernel and ltsp-update-image again
08:10
<Appiah>
what's the error ? (nobody can login)
08:11
<AndyGraybeal>
biomorph_: i don't know anything, but i had that same problem, i updated the sshkey's and all as better.
08:11
*was
08:13
<biomorph_>
Appiah: the LDM screen says "Verifying password - please wait" then "No response from server - restarting"
08:13
I cannot find any relevant logs on the server.....
08:13
<Appiah>
auth.log and messages should say something..
08:15
<biomorph_>
nothing in auth.log or messages or daemon.log
08:17
OK - so is it fair to say there is no harm in doing update-ssh-keys and update-kernel?
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08:25
<AndyGraybeal>
i would assume about the ssh-keys, i'm afraid of update-kernel (but only because i'm ignorant and probably shouldn't be responding)
08:28
<biomorph_>
OK - I can start breathing again......
08:30
While I was at it I did an upgrade in the chroot environment, which did bring in a new kernel.
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08:31
<biomorph_>
So then I did update-sshkeys update-kernel and update-image and everything is back working now.
08:31
<AndyGraybeal>
nice !
08:31
^5's to biomorph_ :)
08:31
<alkisg>
biomorph_: for ssh keys, you don't see errors in auth.log
08:31
The clients doesn't trust the server so it doesn't make any connection attempts
08:31
<biomorph_>
AndyGraybeal: Appiah: alkisg: Thanks for your help......
08:32
<AndyGraybeal>
<beams> :)
08:32
<biomorph_>
alkisg: Yes, I think that's what led me to the update-sshkeys
08:32
<alkisg>
AndyGraybeal: ls /usr/share/zoneinfo/right/
08:32
E.g. for me it is: Europe/Athens
08:32
<AndyGraybeal>
aah thank you alkisg
08:33
<alkisg>
(So I believe EST should also be supported, it's there)
08:33
<AndyGraybeal>
k cool (i live in athens, ohio.. .named after your home :)
08:33
<biomorph_>
I think something has changed on the server, which I guess the update-image picked up.
08:34
<alkisg>
The server ip, in some older time (not the current ip, an older one)
08:39
<AndyGraybeal>
okay, dumb question, when i run 'firefox' as a localapp, does it see my normal bookmarks?
08:40
aah i see, it does.
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08:52
<AndyGraybeal>
how do i get the localapps firefox to have the same 'theme' as the one on regular ubuntu? do i need to install some type of ubuntu x themes on my image? is this worth it for aesthetic reasons?
08:53
it reminds me of early x days :) when i was first introduced to x windows on a sun box in 98 or something
08:53
er, i guess it had to be 96
08:53
i graduated in 97 :)
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09:01
<AndyGraybeal>
sometimes my client picks up the correct time from the timeserver, and sometimes it doesn't; how do i troubleshoot what is going on?
09:01
i have TIMESERVER=192.168.2.1 in my lts.conf
09:01
<alkisg>
And you have a ntpd installed there?
09:02
<AndyGraybeal>
yes, sometimes it works and sometimes it doesn't (it's a openbsd box)
09:02
<alkisg>
# Set up timeserver
09:02
if [ -n "$TIMESERVER" ]; then
09:02
(ntpdate $TIMESERVER; hwclock --systohc --${HWCLOCK:-"utc"} --noadjfile) &
09:02
fi
09:03
So get a local shell on the client and make a small script that sets the wrong time and then calls ntpdate to see if it gets/sets the correct time
09:04
(the code is from ltsp-init-common, btw)
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09:06
<AndyGraybeal>
okay, my brain is trying to understand. give me a second.
09:06
<mgariepy>
morning everyone
09:06
<stgraber>
hey mgariepy
09:06
<highvoltage>
hey mgariepy
09:10
<AndyGraybeal>
alkisg: i'm in a local shell. i typed 'sudo ntpdate 192.168.2.1' and it instantly gets the correct time from the server. i type 'date' from the shell and it is the right time.
09:10
alkisg: i'm sorry that i'm confused about the script you wrote.
09:10
<alkisg>
AndyGraybeal: try setting the wrong time, e.g. 10 minutes off
09:10
<AndyGraybeal>
ok
09:10
<alkisg>
Then run ntpdate again (no sudo needed)
09:11
and call hwclock to save the new time
09:11
<AndyGraybeal>
'command not found' if i don't do sudo.
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09:11
<alkisg>
AndyGraybeal: how did you get a local shell?
09:11
<AndyGraybeal>
gnome-terminal -> ltsp-localapps xterm
09:11
<alkisg>
And how did you get sudo rights there?
09:12
<AndyGraybeal>
i think i installed it
09:12
<alkisg>
You shouldn't be able to authenticate with sudo...
09:12
!SCREEN_02
09:12
<ltspbot`>
alkisg: "SCREEN_02" :: to get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using%20a%20shell%20SCREEN
09:13
<AndyGraybeal>
okay, i'm in screen_02
09:13
<alkisg>
OK, since you said you *sometimes* see the problem, repeat the above 3 steps for some times, to see if indeed there is a problem
09:14
<AndyGraybeal>
ok
09:14
<alkisg>
I.e. set the wrong time, run ntpdate, and then hwclock
09:16
<AndyGraybeal>
it worked 3times+ so far
09:17
i'm typing 'date 112410002010' then 'ntpdate 192.168.2.1' then 'hwclock'
09:17
i'm going to reboot the thing to see what happens.
09:19
i rebooted, and the time is 5:16:44 EST but the real time is 10:19
09:20
i'm not going to worry about it, it's not a big deal
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09:53
<AndyGraybeal>
okay, slightly off-topic, how do i remove a launcher icon from the gnome-panel? I would like to use 'firefox' locally. the launcher in the gnome-panel is the 'served' firefox, the firefox in the Applications menu is the 'local' one.
09:53
well, i mean, from all users.
09:57
what apps are commonly hosted locally? so far i have firefox and flash.
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10:17
<AndyGraybeal>
is it possible to get the 'firefox' localapp to appear on the gnome-panel? i'm pointing the firefox launcher on the panel, but after a logoff/logon it disapears. if this is not possible it's fine.
10:17
i'm just wondering what i may be doing wrong
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10:26
<sbalneav>
Morning all
10:27
So, I did some thinking about the nss situation. Rather than write another module, here's my thoughts.
10:27
<moldy>
AndyGraybeal: afaik, that is done automatically?
10:27
<sbalneav>
Once we establish the socket, we check for two command line parameters to the session.
10:27
pwdfile=/.... and grpfile=/....
10:27
<moldy>
AndyGraybeal: set LOCAL_APPS_MENU = True and LOCAL_APPS_MENU_ITEMS = firefox
10:28
<sbalneav>
We grab the paths, and then do an scp using the established socket to copy the files down to the thin client using the associated path.
10:28
then, for nss, we just have to use good ol' trusty nss_extrafile
10:29
should be much faster lookups than doing a "getent <db> <item>" every time.
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10:36
<Gadi>
sbalneav: it is not that simple
10:36
there is munging involved
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10:36
<ogra_ac>
bah, Gadi ....
10:36
<Gadi>
have a look at the current munging code
10:36
<ogra_ac>
trashing dreams again ?
10:36
<Gadi>
ogra_ac: tis the season
10:37
:)
10:37
<ogra_ac>
heh
10:38
<Gadi>
though, I guess nss_extrafile is still an nss module, so the munging would still be done
10:38
hmm
10:38
on second thought, your dreams may come true
10:38
<ogra_ac>
heh
10:39
<Gadi>
it sounds too trivial not to try
10:39
(says the onlooker)
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10:44
<sbalneav>
That's what I was thinking.
10:46
<AndyGraybeal>
moldy: i've done that.
10:47
moldy: thank you for responding.
10:48
is: LOCAL_APPS_MENU = True ,the same thing as: LOCAL_APPS_MENU=True ?
10:48
<moldy>
AndyGraybeal: i think so
10:48
<AndyGraybeal>
k
10:49
the new wiki looks beautiful :)
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11:02
<AndyGraybeal>
i had the stinking ide disabled in the bios; my bad.
11:03
oh nevermind, i was talking to myeslf.. i thought i had mentioned it here earlier.
11:08
do you guys bother getting the same theme on your 'localapps' as regular ubuntu?
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11:20
<moldy>
no :)
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11:22
<jconlon>
I have an ltsp server working wonderfully at my office. I'm using dnsmasq instead of dhcp3 and it is configured with 1 nic. I would like to do some content filtering with it, preferably a white list only senario. Is
11:23
(continued, sorry)... it necessary to configure it with 2 nics, to run a proxy with content filtering? Or is there an even easier solution to this? Thanks in advance
11:27
<moldy>
why would you need 2 nics?
11:27
there are many ways to do "content filtering"
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11:31
<jconlon>
i had read somewhere that 2 nics were suggested if I was going to send web traffic through a proxy, what would you suggest, Im pretty nooby.
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11:43
<AndyGraybeal>
moldy: okay thank you.
12:15
I'm curios, how does Spice fit in with LTSP? is it something that might replace LTSP? or is it something that would run with LTSP?
12:15
or is it something all together and i'm thoroughly confused, like most of the time.
12:15
<Gadi>
run with ltsp, most likely
12:16
<AndyGraybeal>
can you give me a usage scenario, so i can better wrap my head around it?
12:16
<Gadi>
it would be a substitute for LDM
12:16
it is a protocol
12:16
<AndyGraybeal>
aah LDM, the logon scvreen?
12:16
<Gadi>
for connecting to a virtual machine
12:16
like NX, X, Citrix ICA, RDP
12:16
<AndyGraybeal>
aah okay wonderful, i run NX
12:16
<Gadi>
so, instead of X-over-ssh (like LDM does)
12:17
you could get to your desktop with spice
12:17
<AndyGraybeal>
and spice would better tie in with wayland? (or am i on crack?)
12:18
<Gadi>
I am not sure if spice can connect to an OS or just to a VM
12:18
not sure of the details
12:18
it is primarily a VDI solution
12:18
<AndyGraybeal>
okay, thank you, virtual device interface.. yes?
12:18
<Gadi>
virtual desktop infrastructure
12:19
ie, 1:1 VM:client
12:19
you connect to a VM that is all your own
12:19
<AndyGraybeal>
ah okay, so i have KVM running and i have my own VM.. gotcha
12:19
<Gadi>
rather than getting a display on a multi-user server
12:19
<AndyGraybeal>
so i have tim, betty, and arnold's VM's.
12:19
<Gadi>
right
12:20
<AndyGraybeal>
thank you for taking the time to go over that.
12:20
<Gadi>
pleasure - not sure if SPICE can also be used in SBC (server based computing)
12:20
like what we currently do
12:20
<AndyGraybeal>
hah.. my poor server!
12:20
<Gadi>
but, it is possible
12:20
<AndyGraybeal>
it would never work with 8GB of ram :)
12:20* AndyGraybeal pets his little supermicro box.
12:21
<AndyGraybeal>
it's very good at LTSP.
12:22
i can't imagine having a
12:22
er.. VM for every employee.
12:25
<Gadi>
pros and cons to everything
12:25
:)
12:28
<AndyGraybeal>
is that what people expect from SPICE, to be able to virtualize every desktop for their employees?
12:29
that sounds incredible.
12:29
<Gadi>
VDI is a whole industry
12:29
<AndyGraybeal>
i mean.. like.. incredible as in expensive and overwhelming
12:29
<highvoltage>
AndyGraybeal: I tend to agree with you on that one :)
12:29
<AndyGraybeal>
i used citrix, and the like, but only for accessing certain applications.
12:29
<highvoltage>
Gadi is right though, lots of companies are making lots of money out of it
12:31
<AndyGraybeal>
to take things down a notch, i could run ltsp in a virtual machine, then boot all my clients from that virtual machine?
12:31
can i do that w/o spice?
12:33
<Gadi>
sure
12:33
that is a form of server virtualization
12:33
you are virtualizing the server
12:33
<AndyGraybeal>
aah okay, so desktop virtualizing; okay okay - i need to seperate the two.
12:33
<Gadi>
but, if the clients connect with X-over-ssh, they connect to the server OS - not to the VM itself
12:34
<AndyGraybeal>
do people have LTSP running in VM's?
12:34
<Gadi>
sure
12:34
<AndyGraybeal>
i think i would like to do that.
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17:44
<Pacifica>
Hi. Using both local and LDAP accounts. ssh login for both local and LDAP works fine however I can only login on thin clients with local accounts, not LDAP accounts.
17:45
auth.log shows a successful login with LDAP but no desktop shows and the LDM login screen is shown again.
17:46
I assume something goes wrong with the NFS mount of the user's home dir.
17:46
The LDAP attribute homeDirectory is set correctly.
17:47
I've got this working on another site just fine (also with LDAP)
17:47
This site uses a different LDAP directory, however it seems all required attributes are there.
17:48
LTSP5, Ubuntu 10.04 (64 bit)
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