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


Channel log from 18 December 2014   (all times are UTC)

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07:53
<ts-research>
so... let's say i have a working LTSP server, and let's say 4 workstations connected via ethernet and functioning. What approach do i need in order to get a field operative into his Session using his laptop say at his hotel room?
07:54
<alkisg>
!x2go
07:54
<ltsp`>
x2go: x2go is an NX-based suite of applications that allow logging in to a remote X server from any OS. It's much more efficient than VNC over slow network. More info: http://www.x2go.org/
07:54
<alkisg>
ts-research: ^
07:54
<ts-research>
x2go is not sufficient as some apps cause the session to bog down
07:55
<alkisg>
What is the line speed from the hotel to your server?
07:56
<ts-research>
using x2go in the hotel scenario the experience was fine. however dropbox and skype caused the session to become unstable. they apps were loaded but not in active use.
07:56
<alkisg>
That would be a question for the x2go channel (regarding stability)
07:56
(or their mailing list, whatever they have)
07:56
<ts-research>
in a microsoft environment, you would connect to the vpn, then connect to your TS. is there nothing of this sort?
07:56
<alkisg>
What is the internet speed of the hotel? Is it e.g. 50 mbps?
07:57
<ts-research>
the speed is irrelevant
07:57
<alkisg>
You can't boot ltsp over slow speed
07:57
<ts-research>
it's 40 but as a guest you get 2
07:57
<alkisg>
It requires e.g. 50 MB to boot
07:57
And 50 mbps if you're using thin clients
07:57
<ts-research>
some hotels you're lucky if they give you 1
07:57
x2go was overall pleasant
07:58
but using x2go server was not the bees knees
07:58
everything about LTSP sounds like exactly what i'm looking for, if only the remote connection could be addressed.
07:59
<alkisg>
No, ltsp isn't proper for netbooting over WAN
07:59
<ts-research>
my only question ever is how does one connect to the network with a vpn, then connect to the session
07:59
<alkisg>
LTSP isn't the solution for the use case you're describing
07:59
<ts-research>
your answer was pretty vague, which is typical when one techie supports another techie. are you saying that x2go will connect to an LTSP session?
08:00
<alkisg>
I'm saying that ltsp is about netbooting
08:00
<ts-research>
LTSP -is- the solution for 4 out of 5 machines in my use case
08:00
<alkisg>
You can't netboot over a hotel
08:00
You can netboot in a LAN
08:00
The reasons you can't netboot from a hotel is that you don't have dhcp, wifi pxe capability, vpn in initramfs etc etc
08:01
It's possible to do it if you dedicate a few days in it. And then you'll give up because it's too slow.
08:01
<ts-research>
there must be some clever way to connect to LTSP other than strict pixie booting
08:01
<alkisg>
x2go uses compression etc, it's designed for slow links
08:01
And it's not just about bandwidth, it's latency too
08:01
<ts-research>
so you've connect x2go to LTSP ?
08:01
<alkisg>
Yes x2go works in an ltsp server, but it's not related to ltsp at all then
08:02
It's just one program like so many others installed in an ltsp server
08:02
<ts-research>
how did you ever write a single paper?? it works "in an ltsp server" ... as a client in the server? i'm sorry but you are frustrating in how you can't align your thoughts.
08:02
<alkisg>
English is not my native language and I'm multitasking too much to write papers
08:03
I won't continue trying to help you because you're rude.
08:03
Have a nice day.
08:04
<ts-research>
i said i was sorry and explained that you're not being clear in any way. that isn't rude. but thanks anyway.
08:05
<alkisg>
What I'm trying to tell you is netbooting over WAN is not a good solution to your problem
08:05
<ts-research>
no kidding!
08:05
<alkisg>
You should be looking for solutions like "boot some OS locally, then connect to the LTSP (or other) server"
08:05
Like x2go, xrdp etc
08:05
<ts-research>
YES!!!!!!
08:06
<alkisg>
So, you shouldn't be asking in the #ltsp channel at all...
08:06
<ts-research>
are you an official spokesperson saying that LTSP does not officially support non-pxe-boot connection methods?
08:07
<alkisg>
No, I'm a humble ltsp developer trying to help someone in irc
08:07
<ts-research>
so what would i have to do to connect x2go to ltsp ?
08:07
nothing special?
08:08
do i have to have x2go installed on ltsp server?
08:08
<alkisg>
The "official ltsp answer" there is that that question isn't ltsp related,
08:08
i.e. the ltsp server could be any linux box
08:08
<ts-research>
i know
08:08
<alkisg>
So that question should be directed to the x2go support channels
08:08
Not here
08:08
<ts-research>
they'll use the same excuse
08:09
<alkisg>
You can just ask them about "connecting ltsp to the xxx distro/version"
08:09
<ts-research>
"oh well that's not connecting to our x2go server software so we dont have official support for your use case"
08:09
<alkisg>
You don't need to mention ltsp at all
08:09
You would install x2go server software to the ltsp server, yes
08:09
<ts-research>
they'll say "forward your ports man"
08:09
ok that makes sense alkisg ... thanks
08:09
long way around but we made it
08:10
<alkisg>
x2go server, xrdp server etc are just programs
08:10
You install them to the ltsp server like any other program, libreoffice etc
08:10
And then when you have issues with libreoffice, you ask their support channels,
08:10
when you have issues with x2go you ask their support channels, etc etc
08:10
<ts-research>
isnt ltsp software also?
08:10
i just didnt know if x2go or other method would connect to ltsp
08:10
<alkisg>
Yes, but we don't know x2go
08:11
Each developer can support his own code
08:11
Not the code of others
08:11
<ts-research>
devs really like love that fact, too. and i dont blame them. maybe i dont understand ltsp well enough (obviously)
08:12
i cant explain how it works or what it is -exactly- , only that it's a hardwired TS solution
08:12
<alkisg>
Btw, I hear that x2go has issues with the newest 3d environments like unity and gnome-shell
08:12
<ts-research>
i use mate or xfce or kde typically. would that count as gnome shell?
08:13
<alkisg>
No, afaik x2go works fine with those, they're not 3d environments
08:14
<ts-research>
thank you for your time.
08:20
<alkisg>
You're welcome
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10:13
<FrozenZi1>
Morning all. I've had a working LTSP system set up and ALSO been using the TFTP server to network boot some "different" clients, such as a few memtest boards.
10:14
I've put 01-MACADDRHERE files in the pxelinux.cfg directory and things have worked swimmingly for the longest time.
10:15
Now "all-of-a-sudden" I'm getting PXE-T01 - FILE NOT FOUND
10:15
Any chance I've managed to install a 2nd tftp server or something, and now my "requests" for a tftp-bootup-package (my terms, obviously) are going astray?
10:20
"Normal" ltsp boot seems to suffer the same problem, so it's not just my test benches.
10:21
Of course "all-of-a-sudden" is the key -- what has changed? I don't know. I HAVE been fooling with atftp and atftpd, but of course at this point I can't remember if that was on this computer or not.
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10:27
<FrozenZi1>
Ok, I've (RE)-installed tftpd-hpa, and that seems to have helped the problem somewhat, but now I get tftp open timeout.
10:27
Some configuring to do, I presume...
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11:01
<FrozenZi1>
configuring continues.... /etc/default/tftpd-hpa lists /var/lib/tftpboot as the TFTP_DIRECTORY, which I believe should be right.
11:07
/etc/inetd.conf had a line for tftp where user "nobody" was doing something -- this gave me "cannot set groups for user nobody" -errors (or something to that effect)
11:11
*SEEM* to be making progress. Now getting forbidden directory errors...
11:12
(I'm just keeping up a running commentary here in case someone recognizes a similar problem - feel free to shout out if you see I'm going the wrong direction)
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11:41
<FrozenZi1>
Forbidden Directory error PXE-T02 still going on. Anyone?
11:42
I suspect there are maybe 3-4 files which need to be pointing all in the right direction, and I've got one or more of them flubbed up.
11:43
I'm using an LTSP-PNP install, so not sure if /etc/ltsp/dhcpd.conf is relevant.
11:44
/etc/default/tftpd-hpa is another one.
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13:02
<FrozenZi1>
Am I right that if I have LTSP-PNP installed, I'm running DNSMASQ's TFTP server?
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13:17
<FrozenZia>
fwiw. Apparently my problem was simply: I had installed atftpd. After removing it I think it would have been sufficient to simply restart dnsmasq service.
13:18
Instead I started remembering an old install of tftpd-hpa and started futzing around with it. 3 hours later, hindsight is 20/20.
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