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


Channel log from 23 May 2017   (all times are UTC)

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09:29
<question1000>
alkisg: back. with better luck this time?
09:29
<alkisg>
question1000: eh, I have a few minutes if you're ready
09:29
<question1000>
ok!
09:29
everything is running...
09:29
what to do?
09:31
<alkisg>
question1000: first of all, remind me the issue... what was it?
09:31
Epoptes not running as root on the clients/
09:31
with if-up etc?
09:32
<question1000>
ok. it's like this: epoptes works fine as long as a user is logged in (ubuntu 16.04). but i can't control any pc any more the user has logged out. you already told me that the process "socat ...." has to run twice: once with user-rights and once with admin-rights. the second one is not running any more when the user logs out
09:33
<alkisg>
OK run vnc to me from the server:
09:33
!vnc-dide
09:33
<ltsp>
vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
09:33
<alkisg>
And, have a client booted and logged in
09:34
<question1000>
ok. one sec
09:36
done
09:37
<alkisg>
I haven't received any connections
09:37
<question1000>
last message: making connection to client on host ...
09:37
Port 5500
09:37
<alkisg>
Can you ping srv1-dide.ioa.sch.gr ?
09:38
<question1000>
yes, 81.186.20.0
09:38
<alkisg>
Maybe you mistyped something
09:38
Do you have access to xorg?
09:38
If you are running from ssh, you don't
09:38
Run it from an x session
09:38
E.g. try to run xterm
09:39
And from xterm, try: x11vnc -connect 81.186.20.0
09:39
<question1000>
it's an ubuntu xterm ... just tried the IP-adr
09:39
maybe a firewall-problem=?
09:41
<alkisg>
Dunno
09:41
!vnc-edide
09:41
<ltsp>
vnc-edide: To share your screen with me, open Epoptes → Help menu → Remote support → Host: srv1-dide.ioa.sch.gr, and click the Connect button
09:41
<alkisg>
You can also try it from epoptes
09:41
<question1000>
ok. next try
09:41
<alkisg>
And you could also try `sudo service ufw stop` before that
09:42
<question1000>
... connecting ....
09:43* alkisg hasn't received anything
09:45
<question1000>
i think it's a firewall problem ... i will add a rule to accept port 5500
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09:53
<question1000>
ok. conncected!
09:53
got it
09:57
ok
09:57
<alkisg>
question1000: the problem is that you have epoptes installed on the clients
09:57
You only want epoptes-client on the clients
09:57
Remove epoptes, and you'll get the red monitor thumbnails
09:58
<question1000>
ok, in that case I know why ... we use only ONE image for all computers.
09:58
<alkisg>
And yet you don't use ltsp? Weird :D
09:59
That's what ltsp does best, boots all PCs from one image
09:59
Anyway, you can chmod -x /usr/sbin/epoptes, and it will be fine too
09:59
<question1000>
no. it's not via ltsp ...
09:59
<alkisg>
I understand that you're not using LTSP, and I'm suggesting that it might be easier if you did run LTSP
09:59
<question1000>
we are using a solution called "LINBO" ... it's booting via PXE and copies a server-based image to all PCs
09:59
<alkisg>
Anyways, problem solved.
10:00
<question1000>
ok. very nice
10:00
thank you for support!
10:00
<alkisg>
I would prefer ltsp to linbo, but it's your call :)
10:00
np
10:00
<question1000>
now I know what to do.
10:00
thanks
10:01
when it works with chmod -x it's the best solution for us!
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10:13
<question1000>
bye. great support -- great program!
10:13
<alkisg>
bye
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16:33
<indaiano>
olá, algum brasileiro?
16:44
<alkisg>
Hello. This channel is english only
16:46
<indaiano>
ok, sorry
16:50
My English is crap, but I need help setting up cifs partitions on LTSP terminals. What is the best way to do this? Can it be the same as in GPOs?
16:53
<alkisg>
LTSP doesn't have any code for managing cifs
16:53
I think one way is to mount samba shares on the server, and have clients access them though the server
16:53
I think some people have done it directly on ltsp fat clients too, but I don't know the steps involved
16:54
<||cw>
as long as the utilities are in your client image, you can use the normal mount configuration options
16:55
or, just use smb:// urls in the file managers
16:55
which is best if you need each user to have their own permissions when logging in
17:07
<indaiano>
The assemblies depend on users/passwords and changes in '/etc/fstab'. I'm looking for a more automated way like GPO for example. Something I could set up for all users at once. Taking into account AD groups, etc.
17:29
<raphr>
indaiano: I have done this kind settings with home shares available both via samba and NFS. login password are from AD for both sessions. But others windows shares are only available by entering login/password again on the desktop session.
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17:42
<raphr>
alkisg: hi. Have you ever think about adding iPXE support ?
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17:44
<alkisg>
raphr: I'm not sure what you mean; I'm already using ipxe with ltsp in hundreds of schools
17:45
Do you mean http instead of tftp?
17:45
<raphr>
alkisg: yes
17:46
<alkisg>
There's a thought that in ltsp 6, the settings daemon, ltspd, will also support serving the kernel via http
17:46
But it's just 1 line to run that, nothing difficult...
17:46
<raphr>
AFAIK ltsp-update-kernel is pxelinux/tftp only.
17:46
<alkisg>
python -m SimpleHTTPServer
17:46
ltsp-update-kernels updates the dir
17:47
How it is served, via tftp or http, is not a matter of updating the kernels
17:47
But a matter of dnsmasq/tftpd-hpa/simplehttpserver/apache/nginx etc configuration
17:47
A web server needs to be configured to point to the tftpboot dir
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17:50
<raphr>
ipxe script is a bit different but ltspd is a good thing
17:50
<alkisg>
Also note that ipxe doesn't work in all cards
17:50
Even with undi
17:50
So tftp as the base should always be there
17:55
<raphr>
true. But if it works, classroom boot would be faster.
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18:01
<raphr>
I have only tested wiht custom ipxe script and a compatible PC. image loading is smooth. I wonder if it would be a good idea to build ipxe native script within ltsp-update-kernel.
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18:09
<alkisg>
Sure, it'd be fine. It would make booting 1-2 secs faster
18:10
As only the kernel and initrd are loaded via http, vs tftp
18:27
<raphr>
:) dunno. It is said that http can handle concurrent request better. another idea would be entry point with centrally managed client settings. But ltspd seems more suited solution. this was just an idea.
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19:10
<||cw>
indaiano: either way, it's not really much different than implementing on a desktop. the challenge with thin client is multiple users. the challenge with fat client is kerberos as the clients are dynamic.
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