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[01:05] [Pooria] Hi I have installed LTSP on my ubuntu machine and built the client and .... everything is fine and my thinkclients boot very well without any problem - the only problem : I can not ssh to my thinkclients !!! I will get connection refeused on port 22 !!!! How can I fix this?
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[01:08] [Pooria] HELLO ..........
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[01:15] [alkisg] Pooria: thin clients do not have ssh installed by default
[01:15] [alkisg] That's why you cannot ssh to them
[01:21] [Pooria] alkisg how can I install that?
[01:22] [Pooria] alkisg, my thinkclient in this case is my laptop
[01:22] [alkisg] Pooria: you might have some misunderstanding, so allow me to ask: *why* do you want ssh on the clients?
[01:22] [Pooria] alkisg, I need it , the purpose is not important here - the point is "i need to" is it possible or not?
[01:23] [alkisg] Yes, it is possible. But you do understand that there are *no user accounts* on the clients, right?
[01:23] [Pooria] Well authentication is done thorugh the server right?
[01:23] [alkisg] And also, the user sessions do not run on the thin clients, so you cannot watch/kill processes etc
[01:23] [alkisg] Not if you try to ssh into the client
[01:23] [Pooria] alkisg, I wanna run a cluster
[01:23] [alkisg] So I think the purpose is important, as it might clear up some misunderstanding
[01:24] [Pooria] diskless nodes
[01:24] [Pooria] and using ltsp i can boot up ubuntu on the client
[01:24] [alkisg] cluster == where the processing happens on the clients? LTSP is the opposite, the processing happens on the server
[01:24] [Pooria] if I find a way to be able to run process on them , then I will be good
[01:24] [alkisg] Maybe you want fat clients, and not thin clients?
[01:25] [Pooria] I've read that we can pushe the process to clients too in LTSP
[01:25] [alkisg] You mean localapps?
[01:25] [Pooria] yes
[01:25] [alkisg] LTSP supports thin clients, localapps, and fat clients
[01:25] [Pooria] alright then
[01:25] [Pooria] so I want fat clients!!!
[01:26] [alkisg] But you need to clear up how are you going to send/run things on the clients
[01:26] [Pooria] OK
[01:27] [Pooria] I want group of computers - one server - several clients
[01:27] [Pooria] clients are diskless
[01:27] [Pooria] and I want to be able to ssh to them
[01:27] [Pooria] and be able to RUN app on them - not on the server
[01:27] [Pooria] thus, is it possible?
[01:28] [alkisg] Yes, but authentication can't happen on the thin clients
[01:29] [Pooria] So alkisg I need fat client in my configuration?
[01:29] [alkisg] Fat clients are not different than thin clients, when authentication is concerned
[01:30] [alkisg] So you'll either need to unlock the root account on the chroot, or add some user on the chroot. That's insecure.
[01:30] [Pooria] security is not an issue here
[01:30] [Pooria] tell me what to do here now
[01:30] [alkisg] Do you need different accounts? Or the root is ok?
[01:31] [alkisg] I.e. does ssh'ing as root to the clients suit your needs?
[01:31] [Pooria] root is fine
[01:31] [Pooria] sure
[01:31] [Pooria] that's totally fine
[01:32] [alkisg] Here's one method: https://help.ubuntu.com/community/UbuntuLTSP/PasswordlessSSH
[01:33] [Pooria] ok and processes will run on the Terminal itslef not on the server then right?
[01:33] [alkisg] Yes
[01:33] [alkisg] But any processes that you want to run there should be installed on the chroot
[01:33] [alkisg] Not on the server
[01:34] [Pooria] chroot is /opt/ltps/i386 ?
[01:34] [alkisg] So e.g. if you have a "my-program" that you want to run, you'll need to transfer it to the clients, or copy it to the chroot
[01:34] [alkisg] Yes
[01:34] [Pooria] alright I'm going to do that know
[01:34] [alkisg] If your program doesn't depend on any special libraries, you don't need fat clients
[01:35] [Pooria] what do u mean?
[01:35] [alkisg] Thin clients have fewer libraries than fat clients
[01:35] [alkisg] So if you want to run a text mode mathematical program you should be OK
[01:36] [alkisg] If you want to run a larger program that needs java libraries etc then you'd need fat clients
[01:36] [Pooria] alkisg, thanks , let me try this first
[01:36] [alkisg] ok
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[01:44] [Pooria] great bro but I have just a small problem alkisg
[01:45] [Pooria] alkisg, I can not install anything using apt-get and doesn't even know "sudo" :!!!!!
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[01:51] [alkisg] !docs
[01:51] [ltspbot`] alkisg: "docs" :: For the most current documentation, see https://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_LtspDocumentationUpstream
[01:51] [alkisg] Pooria: read the docs for a while to understand how ltsp works
[01:51] [alkisg] You don't install stuff while ssh'ing to the clients, you install it to the chroot
[01:51] [alkisg] I.e. sudo chroot /opt/ltsp/i386
[01:52] [Pooria] and then run install what ever I want there?
[01:59] [alkisg] See this for an example: https://help.ubuntu.com/community/UbuntuLTSP/UpdatingChroot
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[03:29] [ogra] alkisg, what did you guys do to ltsp-update-sshkeys ?
[03:29] [ogra] its spilling my logs on a machine that had ltsp installed but no client chroot on every boot now
[03:29] [alkisg] ogra, no idea, it's Gadi's area of expertise :D
[03:30] *** ogra wonders if Gadi noted that ltsp-update-sshkeys is called automatically on every interface bringup by if-up.d
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[06:46] [markit] hi, I've an "atom based" thin client for some tests. Is there a specific parameter I have to issue or ltsp-build-client --arch i386 is right?
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[07:49] [markit] well, I've a normal pc that boots fine in ltsp (pxe), but atom based netop or thin client do not
[07:49] [markit] they hang ... seems the netbook has problems with eth, and the thin client gets a kernel panic
[07:49] [markit] maybe later I will find someone that can help me troubleshoot
[07:49] [markit] netbook has ubuntu 9.10 installed, so works fine with GNU/Linux
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[07:50] [markit] ltsp is on debian sid, squeeze (testing) client
[07:50] [markit] see you later :)
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[09:53] [anivair] sip phone question: is there any reason to presume that twinkle should be giving me problems on ltsp?
[09:53] [anivair] because my audio is very shakey at the moment
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[10:39] [anivair] all the sip phones I'm trying ot work with are set to use alsa
[10:40] [anivair] apparently there used to be (and maybe still be) an issue with pulseaudio and sip phones
[10:40] [anivair] but AFAIK, I have to use pulseaudio to get audio on thin clients, correct?
[10:40] [vagrantc] yes, pulseaudio is pretty much *the* way to get audio on thin clients.
[10:41] [vagrantc] there's still support for esd and nas, but it probably hasn't been tested.
[10:41] [vagrantc] in years
[10:41] [vagrantc] many years
[10:41] [anivair] ouch
[10:42] [alkisg] Maybe you can try to use it as a localapp?
[10:42] [vagrantc] pulseaudio provides the alsa compatibility layer, and nearly all applications support alsa
[10:42] [anivair] any suggestions for reconciling that?
[10:42] [anivair] because on the server, the audio works great, but when i log into a thin client I get intermittent stutters and sound garbage
[10:42] [vagrantc] localapps are definitely a good way to go for something that needs good performance for audio
[10:43] [anivair] using (for example) twinkle (but linphone in the same or worse)
[10:43] [anivair] well, last night when i tried to use localapps, it crashes my ltsp logins period
[10:43] [anivair] it would halt the load at "loading vmlinuz"
[10:43] [anivair] \and I had to rebuild the kernel, reload it, and reb oot
[10:43] [vagrantc] you must have had some problem completely unrelated to localapps
[10:43] [anivair] but I might play with it again today, i guess
[10:44] [anivair] I thought that, but trying ot use the lts.conf file with localapps in it (and only localapps) broke it consistently
[10:44] [vagrantc] lts.conf isn't referenced in any way, shape or form until *much* later in the boot process.
[10:45] [anivair] that's what Scott said, but nothing else changed about my setup.
[10:45] [vagrantc] you don't even have a kernel loaded at that point
[10:45] [anivair] all I did was put the lts.conf in place and it died on me
[10:45] [vagrantc] unless it's actually sucessfully loaded the initramfs ... and it's dying trying to download the lts.conf via tftp ...
[10:46] [anivair] that's possible
[10:46] [vagrantc] anivair: did you edit /var/lib/tftpboot/pxelinux.cfg/default to remove quiet and splash?
[10:46] [anivair] I guess I can experiment with it
[10:46] [vagrantc] that would give you a little bit more information to figure out where exactly it's breaking.
[10:47] [anivair] I did not
[10:47] [anivair] (though m ine is in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg)
[10:47] [vagrantc] ah, sorry.
[10:48] [vagrantc] yeah, that's probably where it will be
[10:48] [anivair] append ro initrd=initrd.img quiet splash
[10:48] [anivair] is the line I've got under vmlinuz
[10:48] [vagrantc] try removing quiet and splash
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[11:20] [anivair] hrm ... okay, I seem to have localapps running (ie, it's in my lts.conf and my system loaded)
[11:20] [anivair] but I do not seem to have an option in my menu for running the app locally
[11:20] [anivair] should there be a menu entry, or am I going ot have to write a script ot run it locally?
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[11:30] [alkisg] anivair: distro/version?
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[11:45] [anivair] ubuntu 9.10
[11:51] [anivair] 64 bit
[11:52] [anivair] (ltsp is arch i386
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