IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 11 May 2011 (all times are UTC)
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| 00:07 | <Hyperbyte> Hrm.... there's a lot of garbage leftover ltspfs mounts on the server, in /tmp/.<user>-ltspfs/ directories
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| 00:07 | I assume this isn't normal?
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| 00:09 | There are 80 leftover mountpoints from five users, who have long since then logged out and turned off their thin client
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| 00:13 | <Hyperbyte> Ah, bah... I think I just need to switch to NFS anyways. LTSP server mounts home from NFS too, I don't need ltspfs
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| 04:18 | <alkisg> Hyperbyte: ltspfs is the "opposite" from nfs.
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| 04:18 | Nfs = mount server dirs to the client
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| 04:18 | ltspfs = mount client dirs to the server
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| 04:19 | So e.g. if you sit on a thin client and plug in a usb stick, you need to "transfer" it with ltspfs on your session on the server to see it
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| 04:57 | <ben__> hi all
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| 04:57 | today I can't get nbd swap working on a new install
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| 04:57 | Debian Squeeze
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| 05:02 | <ben__> ah, okay, I'm on the trail, it's a vserver issue
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| 05:07 | <alkisg> vserver? This one? http://linux-vserver.org
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| 05:07 | Like lxc?
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| 05:09 | <ben__> it a similar method to lxc yes
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| 05:10 | but a bit more featureful
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| 05:11 | I've just got it working, /proc/cmdline was hidden from the guest server
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| 05:11 | unhiding it nbdswap now works
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| 05:12 | I've nearly got a complete howto of how to go from nothing to a Debian Squeeze based vserver host with an LTSP guest server installed
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| 06:29 | <ben__> hey all, I've a new problem now
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| 06:29 | <ben__> I'm running iceweasel as a local app, but now it doesn't produce any sound
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| 06:29 | well, the non-free flash plugin doesn't produce any sound
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| 06:29 | which it did on the host
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| 06:33 | any ideas?
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| 06:35 | <mgariepy> ben__, you can run xterm as a local app then start iceweasel from there maybe you will have output in the console
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| 06:36 | <ben__> true mgariepy, will do
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| 06:36 | I've installed flashplugin-nonfree-extrasound in the client chroot now also, still doesn't work
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| 06:38 | wow, xterm run of iceweasel is producing lots of output
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| 06:38 | <veloutin> hello mgariepy
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| 06:38 | <mgariepy> hello veloutin
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| 07:04 | <ben__> right, I can get sound locally, but I need to turn off pulseaudio on the client
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| 07:04 | is there any way round this?
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| 07:05 | I'm sure pulse doesn't need to completely lock the alsa backend, but appears to
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| 07:28 | <ben__> I'm not having much luck with this
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| 07:33 | <Gadi> ben__: do you have pasuspender in the chroot?
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| 07:33 | <Ghidorah> Anyone know what might cause a "Kernel panic - not syncing" when booting a terminal?
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| 07:33 | Just completed the image build.
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| 07:42 | <ben__> pasuspender Gadi, no
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| 07:42 | do I just need to install it or is there anything else?
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| 07:43 | <Gadi> ben__: well, I am surprised that your alsa is not already set up to redirect to pulse. But, if you want to workaround it, you can install pulseaudio-utils in the client and launch: pasuspender -- iceweasel (or some such)
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| 07:43 | <ben__> Gadi, where do I get this pasuspender?
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| 07:43 | <Gadi> and that will suspend pulse for iceweasel
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| 07:43 | <ben__> okay
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| 07:43 | cheers
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| 07:44 | how would I set up alsa to redirect to pulse?
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| 07:45 | ah, pasuspender was there
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| 07:48 | "well, I am surprised that your alsa is not already set up to redirect to pulse"
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| 07:49 | is there a client setup for this?
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| 07:49 | something I do in the root?
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| 07:50 | something I do in the chroot?
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| 07:55 | BIAB
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| 08:13 | <ben__> Gadi, pasuspend works well thankyou for that
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| 08:13 | pasuspender rather
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| 08:17 | <Gadi> ben__: sorry - was afk and now I gotta run - but glad to see it worked!!
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| 08:17 | :)
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| 08:17 | cheers
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| 10:28 | <Ghidorah> Has anyone worked with LTSP-Cluster and Ubuntu 11.04? I keep getting this error in my lbserver log
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| 10:28 | Cannot retrieve node 'white', error:<class 'socket.timeout'>
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| 10:28 | Also
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| 10:28 | localhost - - [11/May/2011 13:27:55] "GET /?group=default HTTP/1.0" 200 -
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| 10:29 | <Ghidorah> If it helps, loadbalancing isn't working. It uses the root server as its app server.
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| 10:42 | <_UsUrPeR_> has anybody gotten unity to work with LTSP yet?
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| 11:00 | <alkisg> _UsUrPeR_: I haven't tried, but do you have 3d on your clients?
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| 11:00 | <Ghidorah> Is anyone running LTSP-Cluster here? If so, what version of Ubuntu are you running?
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| 11:00 | <alkisg> _UsUrPeR_: if not, you might want to try unity-2d instead
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| 11:05 | <mgariepy> Ghidorah, i currently have jaunty,lucid and maverick
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| 11:06 | Ghidorah, does ltsp-cluster-lbagent running on the applications server ?
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| 11:07 | <Ghidorah> mgariepy: I have it installed.
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| 11:08 | <mgariepy> is it running ?
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| 11:08 | ps aux|grep lbagent
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| 11:08 | <Ghidorah> let me verify
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| 11:10 | It is running
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| 11:15 | In the log file for the agent I have
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| 11:15 | Reload variable : NBX11SESS at 60 Reload variable : USERS at 70 Reload variable : NBUSERS at 70 Reload variable : NBX11SESS at 70
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| 11:15 | it just keeps going up
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| 11:22 | <mgariepy> Ghidorah, i'm currently on a emergency, i'll help you a bit later.
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| 11:24 | <Ghidorah_> Sounds good. Thanks for you assistance and good luck!
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| 11:44 | <mgariepy> so
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| 11:46 | <mgariepy> Ghidorah_, can you try to telnet <your appsrv> 8000
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| 11:47 | from the loadbalancer
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| 11:49 | <Ghidorah_> k lemmie try
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| 11:50 | <mgariepy> and i would like to see your /etc/ltsp/lbserver.xml please
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| 11:50 | <Ghidorah_> Unable to connect on telnet
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| 11:50 | rather it just says trying
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| 11:50 | <mgariepy> do you have a firewall between your server?
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| 11:51 | <Ghidorah_> No
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| 11:51 | <mgariepy> one the applications server : netstat -taunp | grep LISTEN
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| 11:51 | or grep 8000
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| 11:51 | is it listening ?
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| 11:52 | <Ghidorah_> tcp 0 0 0.0.0.0:8000 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:8001 0.0.0.0:* LISTEN -
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| 11:52 | yes
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| 11:53 | <mgariepy> from localhost it works? with telnet ?
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| 11:53 | <roasted_> dear ltsp developers. friday we had a meeting with several school districts in the area who are beginning to consider open source alternatives due to increasingly slashed budgets.
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| 11:54 | <Ghidorah_> works on localhost
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| 11:54 | <roasted_> I brought up ltsp as being a huge success for our district. one or two of the nearby districts may come check out the setup and see what I have done with it.
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| 11:54 | which ultimately stems down to the users in this chat who helped me even get my LTSP setup off the ground.
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| 11:54 | you rock, and I owe each of you a beer if you ever come to pennsylvania, usa.
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| 11:55 | <Ghidorah_> mgariepy: http://pastebin.com/4p1f4r8j
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| 11:56 | <mgariepy> Ghidorah_, the name resolv correctly on ltsp-loadbalancer01 ?
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| 11:56 | er. loadbalancer
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| 11:56 | sorry old habbits haha
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| 11:56 | <alkisg> roasted_: nice to hear that LTSP is working ok for you :)
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| 11:57 | <Ghidorah_> mgariepy: Yes
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| 11:57 | I can nmap the app server too
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| 11:57 | and it shows it listening
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| 11:57 | <mgariepy> but the telnet doesn't works
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| 11:57 | <Ghidorah_> No sir.
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| 11:59 | <Ghidorah_> Actually I lied.
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| 11:59 | From loadbalancer... nmap does not show port 8000 listening on appsrv1
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| 12:00 | <mgariepy> are you sure you don't have a fw between them ?
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| 12:00 | <Ghidorah_> Is it possible that the lbagent crashes?
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| 12:01 | they're both on the same VMWare host and same vlan
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| 12:01 | I just restarted the lbagent again
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| 12:01 | and now I'm able to telnet to it
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| 12:01 | from the loadbalancer
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| 12:01 | <mgariepy> never tested it in vmware but it should work fine.
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| 12:04 | <roasted_> alkisg, mucho thanks to your patience with me setting it up. thanks again bro.
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| 12:08 | <abeehc> vlanbugfyi: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/658460
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| 12:12 | <mgariepy> Ghidorah_, does your lbserver works now?
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| 12:13 | <Ghidorah_> siiiiiiigh mgariepy discovered something far worse and noobish
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| 12:14 | if I change the IP address on a app server do I have to update any images or sshkeys?
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| 12:15 | <mgariepy> Ghidorah_, no
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| 12:23 | <pvthodson> has anyone here set up a ltsp server to work over a site to site bridged vpn?
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| 12:24 | <Ghidorah_> mgariepy: thank you for your help!
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| 12:31 | <pvthodson> can anyone help with my question
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| 12:32 | <Ghidorah_> pvthodson: usually someone responds if they have something to offer
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| 12:32 | and sometimes that can be a while after you type your question
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| 12:35 | <alkisg> pvthodson: also, if you have some specific question, it'd be better to ask that instead
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| 12:35 | <pvthodson> I did
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| 12:35 | "has anyone here set up a ltsp server to work over a site to site bridged vpn?
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| 12:35 | <alkisg> E.g. I've heard of people running ltsp over vpn. But I can't answer *your* question
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| 12:36 | So while I know it works, I can't say "yes" to your question
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| 12:36 | <Ghidorah_> pvthodson: If I remember correctly, at LTSP Bootcamp I was told that it is best to keep on a local LAN
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| 12:36 | <pvthodson> yes that makes sence for security purposes but I am doing this strictly for testing
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| 12:37 | <abeehc> no it makes sense for performance
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| 12:39 | <Ghidorah_> wow now that I got this LTSP-Cluster working, I feel like I should take a vacation!
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| 12:40 | This project is going to save me so much grief. Thanks for your help #ltsp
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| 13:04 | <pvthodson> What are proven methods for using ltsp over a wan (ie. VPN, Tunneling, PPTP) ?
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| 13:05 | <vagrantc> latency could really be a blocker
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| 13:06 | <pvthodson> both locations have buisness lines
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| 13:09 | <vagrantc> what's that mean?
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| 13:10 | <veloutin> mgariepy: have we tried running ltsp clients across offices?
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| 13:11 | <vagrantc> pvthodson: does your connection get latency better or worse than a typical 10/100 LAN?
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| 13:11 | <mgariepy> accross office, you shoud use nx or something like that..
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| 13:12 | veloutin, only on great wan fiber network ;)
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| 13:12 | <pvthodson> Im not familiar with NX is it similar to ltsp
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| 13:13 | <veloutin> did it work well through the fiber?
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| 13:14 | <abeehc> i'm using nx for remote users to access their linux desktops
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| 13:14 | while it's on the ltsp-server, it has little to do with ltsp
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| 13:15 | i think the performance is a touch better than m$ rdp; but i'm biased
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| 13:15 | <pvthodson> Yeah just some quick search told me that, seems to be just a remote desktop solutions really
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| 13:15 | <Ghidorah_> abeehc: Do you have a web frontend for the NX clients?
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| 13:16 | <pvthodson> That would be interesting
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| 13:16 | would it be possible to have a web based client for ltsp?
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| 13:17 | <alkisg> LTSP is about remove booting
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| 13:17 | If you have a web browser running, you're looking for a remote desktop solution
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| 13:17 | Here's the edubuntu demo that uses nx: http://edubuntu.org/vmmanager
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| 13:17 | You can try that
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| 13:17 | *s/remove/remote
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| 13:18 | <abeehc> Ghidorah_: yes, that's all i've used to this point
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| 13:19 | well no i tried the linux client; but the web one works jsut as well and it's a touch more intuitive for endusers
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| 13:19 | <Ghidorah_> abeehc: Nice! Do you have any resources that you used to set that up?
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| 13:19 | <abeehc> again it's had to call it a "web based client for ltsp" - it's nx, and there's really no ltsp involvement
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| 13:19 | alkisg was my initial resource for the 3 commands to install nx
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| 13:20 | from the google ppa (neatx) i think
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| 13:20 | then, you can just grab the web client from here http://www.nomachine.com/download-companion.php?os=linux
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| 13:21 | <Ghidorah_> What issues have you experienced with it?
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| 13:21 | <abeehc> if you get that far and have trouble ping me. the tar comes with a readme, but essentialy I used the native linux client to create a profile, then i deployed it to the same folder
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| 13:21 | we've been testing for about a month, lightly.. nothing at all so far
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| 13:21 | I'm not clear how it's going to handle users that neglect to log out of ltsp, go home and fire up the web client
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| 13:21 | <Ghidorah_> Are you a school env?
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| 13:22 | <abeehc> no private company
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| 13:25 | my mistake that package has no readme, the doc i used was this: http://www.nomachine.com/documents/plugin/install.html
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| 13:25 | i had to fight with apache virtualroots/paths for a bit, i think that was a direct result of going with the tar package but if you've battled that type of stuff before it won't be an issue
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| 13:25 | <alkisg> abeehc: what was the problem with the linux client? its menus?
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| 13:26 | *dialogs?
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| 13:26 | <abeehc> yeah it was a bit more conveluted.. i mean it's more powerful and I'm sure you can pre-package sessions for users
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| 13:27 | but in the end that web client works so well, and you can easily pre-define the session settings
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| 13:27 | so i don't mean to say the linux client is useless or has any problems really, it worked well
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| 13:27 | <pvthodson> So connecting to ltsp over wan is not really a good solutions but what about some way of syncing to ltsp servers that are at different locations?
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| 13:31 | * alkisg thinks it'd be best to describe your situation in more detail, so that someone here can suggest what would best suit you | |
| 13:34 | <pvthodson> Basically if I had two ltsp server running in different locations could I then sync them so that they had the same data. That way a user that used both location would have the same experience.
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| 13:35 | <alkisg> Sure, you could, but it depends on your actual use case if that would make sense or not
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| 13:36 | <alkisg> How many users/clients, network speed etc
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| 13:37 | <pvthodson> Say about 20 max clients, both sites having buisness class lines
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| 13:37 | <Ghidorah_> What does business class line mean?
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| 13:38 | Nick change: Ghidorah_ -> Ghidorah | |
| 13:38 | <alkisg> I'm not familiar with "business class", what are its specs?
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| 13:38 | <pvthodson> Comcast buisness, I think its like 50d and 5u
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| 13:39 | <alkisg> And, you mean 2 ltsp servers with 20 clients each?
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| 13:39 | <pvthodson> yes
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| 13:39 | <alkisg> How would you handle the home directories? You'd sync those too?
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| 13:40 | E.g. someone there might login on one site and then on the other site? Or they'd always login on the same site?
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| 13:40 | <pvthodson> Well sync the servers would in turn sync the home directories right?
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| 13:40 | <alkisg> If you want
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| 13:40 | 50d => that's mbit/sec? kb/sec? what?
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| 13:41 | <pvthodson> mb
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| 13:41 | i haven't seen specs in kb since the dialup days lol
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| 13:42 | <alkisg> mb == megabyte
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| 13:42 | It's usually measured in mbit
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| 13:42 | kb=kilobyte, not kilobit
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| 13:42 | Anyway, ok, it sounds feasible
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| 13:43 | <pvthodson> but what method would be used to sync the servers so changes made on one server would then be affected on the other and vise versa
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| 13:46 | <Appiah> there a mangament tools for that
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| 13:46 | they are not ltsp specific
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| 13:46 | <pvthodson> called
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| 13:46 | <Appiah> like puppet
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| 13:47 | but I never used any of them since I only managed about 2-3 ltsp servers and it's not worth the hassle
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| 13:47 | I think webmin has some kind of feature for that too
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| 13:47 | but I dont trust webmin to much so never tried it
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| 13:47 | <pvthodson> yeah don't trust it much either
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| 13:49 | <vagrantc> 50 download, 5 upload ... so to sync the two servers you'd get at most 5
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| 13:50 | <pvthodson> which is fine cause I would expect a mass amount of data storage given the nature of an ltsp server in general
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| 13:51 | <pvthodson> I am trying to find info online for a program to use but I don't think my terminology is going to get the right results what would you suggest searching for>
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| 13:52 | ?
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| 13:52 | <Appiah> managment softwares?
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| 13:53 | search for similar things to puppet and landscape
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| 13:53 | and cfengine
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| 13:56 | <pvthodson> just curious but do you authenticate user locally on the ltsp server or do you use some kind of ldap kerberos method?
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| 13:57 | I heard samba 4 could be combined with ltsp for home folder storage and user authentication?
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| 13:57 | <Appiah> ldap on moste sites
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| 13:57 | most*
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| 13:57 | else just locally
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| 13:59 | * vagrantc would say locally on most sites, and ldap where they bother to configure it | |
| 14:03 | <pvthodson> have any you heard of combining ltsp and samba 4 for home folder storage and authentication
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| 14:04 | <alkisg> Nope, ltsp uses ssh for authentication
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| 14:04 | If you want to combine 2 or more ltsp servers, then ltsp is not related to that part there
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| 14:13 | <pvthodson> Im talking about where it authenticates to not really the means of authentication
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| 14:13 | <abeehc> pvthodson: i use likewise, which in some respect brings togther samba and ltsp
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| 14:14 | then again it's sorta like nx, really has nothing to do with ltsp
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| 14:15 | <pvthodson> that looks very interesting im more or less looking for a centeral authentication instead of locally on each server
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| 14:16 | <abeehc> likewise is only worthwhile if you are integrating into existing active directory; otherwise i would look elsewhere
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| 14:17 | <pvthodson> While were on the subject what management options does it provide for mac users? If integrating into a existing ad
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| 14:18 | <abeehc> i don't know, i think osx comes stock with that ability, but i'm sure it sucks
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| 14:20 | <Ghidorah> Does anyone know if the logs in LTSP-Cluster Control Center can sent to syslog?
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| 14:20 | can be*
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| 14:32 | <andygraybeal> abeehc, hi :)
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| 14:35 | <abeehc> hey!~
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| 14:35 | http://www.google.com/events/io/2011/index-live.html - live io ;O
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| 14:42 | <Ghidorah> nice!
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| 14:49 | <andygraybeal> what is this abeehc?
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| 15:06 | <abeehc> it's a live feed from that google io conference.. maybe it's ending soon i'm not sure
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