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


Channel log from 31 May 2009   (all times are UTC)

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13:41
<Squideshi>
Can anyone help be understand what LTSP provides that can not already be done with X remotely?
13:44
<highvoltage>
Squideshi: depends. define "X remotely"
13:46
<Squideshi>
Can't you just setup a server (the X client) and multiple workstations (the X servers) and connect that way?
13:47
For example, if I had a bunch of X terminals, couldn't they all just connect to the server (X client)>
13:47
?
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13:53
<alkisg>
Squideshi: see the ltsp docs. E.g. network booting, sound, local devices (usb sticks, cd roms), encrypted communication etc
13:55
<Squideshi>
I've been reading through the docs, but I thought that these were already all possible with an X terminal (Except for maybe network booting, which I don't think is needed with an X terminal.)
13:55
<alkisg>
Remote sound with an x-terminal? Local devices? I don't think so...
13:55
<Squideshi>
Hmmm... That may be where my confusion was then.
13:57
The docs talk about network booting, but don't some thin clients have the X server already embedded in hardware?
13:58
<alkisg>
Network booting = central updates. I don't know if/how X-terminals are upgrated, but in LTSP an apt-get update in the chroot is all it takes.
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14:08
<Squideshi>
I guess I just assumed that the X terminals with X servers embedded in hardware just don't get updated.
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14:33
<Squideshi>
disklessworkstations.com sells a few "DLW" terminals with Linux "embedded". Am I correct in understanding that this does not get updated?
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14:48
<vagrantc>
Squideshi: probably not without manual intervention.
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15:02
<Squideshi>
I am thinking about setting up a LTSP server in a central location with remote terminal/clients offsite, connected via either DSL or cable modem. Do I need a router at the terminal/client side to route PXE booting, or is there another scenario?
15:11
<alkisg>
DSL remote booting will be slow
15:11
<Appiah>
hmm pxe over vpn?
15:14
<nubae>
Squideshi: I think its an unrealistic setup, its been spoken about before
15:14
I believe someone wanted to set up a LTSP server on an Amazon cloud
15:14
:p
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15:25
<Squideshi>
OK. LTSP doesn't require PXE booting. Are there thin clients with LTSP embedded or already installed (so they don't have to be pulled down over the network for boot)?
15:26
<johnny>
pulling down over the network is rearely a problem
15:26
you could build such a thing yourself if you really wanted to
15:26
it's the actual running that is a problem
15:27
since all the programs run over the network
15:28
<Squideshi>
I thought that all the programs would run on the LTSP server and only X11 would be sent over the network.
15:28
Isn't that the purpose?
15:32
<alkisg>
Squideshi: so if you so ssh -X some_pc_over_a_dsl, are you satisfied with the results?
15:33
<johnny>
Squideshi, X11 is heavy..
15:34
<Squideshi>
I haven't tried that. I thought that X11 was designed to allow remote terminals.
15:34
<johnny>
it is
15:34
otherwise you wouldn't be able to do what you're doing
15:34
at all
15:35
<Squideshi>
OK, so what I think I hear you saying is that X11 may work over a DSL connection; but it won't work well.
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15:36
<Appiah>
for how many clients?
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15:37
<Squideshi>
Usually one per DSL connection.
15:37
<Appiah>
oh each client got its own connection?
15:37
24/3,5 ?
15:37
<Squideshi>
Yes--they're branch offices.
15:37
Small branch offices.
15:38
<Appiah>
with just 1 client?
15:38
<Squideshi>
Yep.
15:39
What about this NX thing I just found?
15:39
Does that work with LTSP?
15:39
<Appiah>
well , doesnt sound impossible but cant gurantee it will be smooth
15:40
<lupine_85>
nxagent apparently
15:40
<Appiah>
there is nx support
15:41
<Squideshi>
http://www.ltsp.org/twiki/bin/view/Ltsp/FreeNX
15:42
This might be for what I am looking.
15:42
<johnny>
yes.. that will help mucho
15:42
but you won't get all the benefits of ltsp iirc
15:42
<Squideshi>
No?
15:45
<johnny>
i'm trying to remember.. others here would know better
15:47
<Squideshi>
Seems like NX is a better protocol than X11 in general. I wonder why more people aren't using NX instead of X11, if X11 really is that "heavy".
15:47
I mean, if it compresses things and works well over a limited bandwidth connection, surely it would also reduce local network traffic if used strictly over a LAN, right?
15:51
<johnny>
sure.. at the cost of higher resources
15:52
plus.. the original implementation is not open
15:52
<Squideshi>
Oh, NX is not FOSS?
15:52
I thought it was. My bad.
15:55
<johnny>
i think freenx is
15:57
<Appiah>
FreeNX is Free :D
15:58
still version 0.7.3
15:58
about 1 year since last release
15:58
<Squideshi>
Hmmm... Maybe I can use FreeNX with LTSP.
15:59
<Appiah>
you can
16:01
<vagrantc>
the NX implementations have code copies from older versions of X, and are getting outdated and buggy and security ridden
16:01
NX was a great idea, but implemented in a way that isn't long-term viable.
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18:54
<petre>
What causes the problem of a usb flash drive plugged into the server causing an icon to appear on all client desktops? Or is it a case of 'it depends'?
18:56
<jammcq>
hey petre
18:56
<petre>
hey jammcq !
18:56
<johnny>
petre, usually because your users aren't in their own group
18:56
as their primary
18:56
<petre>
ah, as in putting all users into, say, group 'students' for their primary group?
18:57
<johnny>
yes
18:57
their primary group should be themselves
18:58
<petre>
and everyone should be in the 'fuse' group, meaning secondary, for local device access, right?
19:02
<johnny>
if they are already
19:24
<stgraber>
I have a script for that
19:24
petre: ^
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21:24
<sbalneav>
Evening all
21:25
<jammcq>
Scotty !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
21:29
<sbalneav>
Hey jammcq!
21:29
I think Ive got all the woodtics off me now :)
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