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öööer.. what =D
we are used to call our english lecturer steve the pirates. nice to meet you mr. steve
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Hi all. I find an interesting doc here : https://help.ubuntu.com/community/UbuntuLTSP/ThinClientHowtoNAT, but :
I don't understand how THIN clients (they talk about thin clients, yes ??) can necessitate NAT...
What I undestand yesterday after a lot of explanations from alkisg (;-)) is that the thin clients work ON the server, in memory, disk, and with all resources like network interfaces
So if a server has 2 NIC, the thin clients see 2 NIC. Right or not ?
Right, and it doesn't need nat
If so, how can they need NAT ?......
That's only used for localapps or fat clients
Hi alkisg. Yes I say that to me at beginning... But the page is called "UbuntuLTSPThinClientHowtoNAT", with "Thin" in it...
Localapps is a concept used in thin clients
It's a method to make only some applications run locally in the clients
fgth, thin clients run all their software on the server by default. So for the software to have internet access, the server needs internet access. You can use localapps, to run programs on the thin client itself (to save memory on the server, for example). For those programs, the thin client also needs internet access, thus you require NAT.
(I thought I'd save alkisg the hassle of typing that, since we've recently determined I type about 30 words per minute faster than him)
Har har har. :>
|13:37||* Hyperbyte pokes alkisg|
I've really a problem with that, sorry if I'm *fat* me too..... What I don't understand :
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I start my thin client. It lauch Gnome (it's an Ubuntu LTSP server), I'm in the GUI. Here I lauch a terminal. I see 2 things :
the hostname is the server name...
an ifconfig see the 2 NIC of the server, with its IPs...
not the thin client name and the specific (dhcp) IP displayed on the login screen
So at this point I undestand that I'm TOTALLY on the server, just an X session transfered to the thin client screen
Hyperbyte: yet the oracle knows what you'll type before you even think it, so he has a headstart :P
OK, I see. In this configuration, all the apps are launched like on the server : in its memory. But some apps can be explicitely launched in the thin client memory, so they are like the text console tty1, where I see the thin client name and only its IP. Here the apps need NAT.
Hyperbyte: alkisg: The LTSP oracle. Our beacon of hope in the world of LTSP. With the guidance of this divine emperor, we shall prevail.
All hail the great oracle!
So, epoptes, our computer lab administration + monitoring tool (like italc) has just been published, brave ones can install it from https://launchpad.net/~epoptes/+archive/ppa/+packages
|13:51||* alkisg gets up a web page with instructions...|
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Basic instructions set up at http://www.epoptes.org
do they have to learn greek before ?
Nope, not anymore :D
Main program is in english, translations are managed in launchpad
you should get it into ubuntu or debian then
sounds like a good BTS task :)
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We'll try - and thankfully highvoltage and vagrantc showed interested in sponshoring the package :)
yeah, vagrant is surely the best choice
I think getting it first to debian and then to ubuntu will make us lose the Precise importfreeze, so maybe it's better to do both of them
highvoltage, are you DD nowadays ?
ogra_: nope, not yet. maybe in a year from now :)
|14:35||* ogra_ say the same every year since 7 years now :)|
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ogra_: ah, I'm still on my 2nd year of that, so it will take me a while to catch up with you :)
yeaah, will be hard to surpass me
Alkisg: is Epoptes the much awaited iTalc alternative?
Ghidorah: yes, it's time for people interested in it to start trying it out :)
The web page now is very minimal, but the instructions there should be sufficient for ubuntu users, ltsp or not
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anyone using ltsp on a cloud?
like ltsp on an ubuntu cloud instance
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Does anyone know how to prevent whatever maybe causing this to appear in syslog "pulseaudio: pid.c: Daemon already running." on the LTSP application server
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hi, is anyone available to help w/ ltsp on ubuntu server 11.04?
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fellowEnt: What is up
I can't seem to get LDM_AUTOLOGIN to work
Ok. What is in your LTS.conf?
I've tried [Default]
LDM_AUTOLOGIN = True
and of course the LDM_USERNAME / PASS
the client still boots to a logon screen
alkisg: localxterm: while sitting on a thin client, open a gnome terminal. In that, run: ltsp-localapps xterm. An xterm will open. That xterm runs locally, so any commands you enter there are executed directly on the client.
at the bottom right, it shows a hostname of "ltsp100"
fellowEnt: login, open a localxterm, and run: getltscfg -a
This will check if your client actually reads lts.conf
getting a syntax error lts.conf line 20
Put your whole lts.conf to pastebin, change the pass to XXX if you want
alkisg: pastebin: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
Btw, distro, version, and where is your lts.conf located?
Ubuntu 11.04 /var/lib/tftpboot/ltsp/i386/lts.conf
OK, put your lts.conf to pastebin
I don't think it's reading from the lts.conf mentioned above as I've made changes and it still reports the error on line 20
is line 1 an empty line ?
it should be otherwise you have a dns issue
and line one shouldn't be empty
it should have the [Default]
[default] needs to be on the very first line
ok, just moved the text and now it shows line 31
ok, will try
fellowEnt: you need to reboot the client to make it re-read your lts.conf changes
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hmm now it's just black / flashing init: plymouth main process (216) killed by ABRT signal
sorry, had the password wrong; corrected and rebooting
ok, it looks like it worked! :) now I just need it to run rdesktop
fellowEnt: if you *only* want rdesktop, there's no need to have a gnome session at all, just use SCREEN_07=rdesktop
trying with only SCREEN_07=rdesktop -f 192.x.x.x in lts.conf
I'm just getting a black screen with a mouse pointer
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this is a test env so I'm not sure it's reaching the term server
any idea where "ltsp100" is coming from?
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it's the last byte of your client ip
ltsp+ip last byte
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I'm just getting a black screen with mouse cursor
my current lts.conf http://pastebin.com/0erTKbaS
fellowEnt: in this case rdesktop runs locally so you need NAT if you have a 2 nic server
One good way to troubleshoot it is:
1) put your old lts.conf back
2) get a localxterm
(i.e. login and run ltsp-localapps)
3) get rdesktop working from that localxterm
4) then move on with your new lts.conf
while I do have 2 nics, the term server is on the same subnet, I'll try the localxterm tho
when I go through localxterm, it works
anyone know of any good ways to track down errors like polkit-gnome-au: segfault at 28 ip 00007ff83c7d59d8?
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Ok, now using "Multiple Line" in lts.conf worked :)
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now its 2d by default if you cant use 3d
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matrix3000: Does this link provide any help? http://www.liberiangeek.net/2011/08/return-to-ubuntu-classic-desktop-in-ubuntu-11-10/
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yes thank you
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alkisg and matrix3000, thank you both VERY much for your help!
Where can I donte to your beer fund?
:) you're welcome
Do you take donations?
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fellowEnt, alkisg is trying to earn his Ph.D, but he's spending way too much time online helping people here. ;-)
If you wanna be alkisg of service, best you can do is stick around here and share your LTSP / Linux knowledge with others. ;-)
This'll save alkis lots of time. ;-)
fellowEnt: I think the BTS 2011 could use some donations :)
Oh, that too!
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have a nice weekend guys
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!learn epoptes as Epoptes is a computer lab administration and monitoring tool. It works on Ubuntu (and hopefully Debian) based LTSP or non-LTSP servers, thin and fat clients, standalone workstations, NX clients etc. More info: http://www.epoptes.org
alkisg: The operation succeeded.
Hyperbyte: the site has taken form, how does it look to your experienced eye? (be gentle, I don't want to invest more than 1 afternoon it it :D)
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alkisg, it stretches horizontally
This is very annoying on big screens, because lines become reeeeally long
|21:54||* alkisg can't live without liquid layouts :D|
The "about" page is about 30-40 cm wide on my screen
But fixed size sites don't display well on smaller screens, netbooks, mobile phones etc
You can set a maximum size I think.
Hmmm I don't think google sites will allow me to specify custom css...
Don't people with 24"+ screens have big fonts? :)
Also - the text is grey. Make it black.
This doesn't help with readability.
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alkisg: hi there!
alkisg: you're the one who announced epoptes on the ltsp mailing list just now, right?
alkisg: is it kind of like italc?
it certainly looks more ubuntu-ish
which is good
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zamba: yes, it's like italc
We made it because we weren't satisfied with italc, so he hope it's better
At the very least, more stable :)
alkisg: aight, perfect
alkisg: i'll give it a spin then
will test it in my lab environment
Nice, ping for any questions or problems you see
oh, no, nevermind, not a lab environment, a production environment :)
but i'm a bit uncertain about the server/client part here.. can a machine be both?
Will you be using it in an LTSP setup?
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a good mix
some standalone and some through ltsp
is there built-in some kind of authentication here?
zamba: for the gui part, there's a socket that's owned by the group "admin"
So only members of that group can launch the gui
To change the group, you modify /etc/default/epoptes
About the client <=> server connection, reverse connections are used
So there's no concept of "connecting to a client", it's the reverse, the client connects to the server
alkisg: oh, ok
So the only way that I can imagine a hacker could take control of your client, would be to spoof dns or take your server's ip
well, i'll take a look at it and give some feedback
And in that case, if some rogue pc on your network took your server's ip, it could do a lot more than send commands to clients :)
It could even send a custom nbd image :)
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