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can any one assist me on how to boot from pxe for linux platform...
i am new to linux
are you trying to set up LTSP?
what distro? what verison?
where are you stuck?
i just buy a acer laptop
it a linux
when i try to boot from pxe ( i press F12 ) it keeps on rebooting...
you have a PXE server set up?
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Hi folks. I'm currently having a huge problem at the login for the ltsp client - it keeps accepting the credentials, but returning "no response from server, restarting" Does anyone have any advice?
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Hi. Does anyone have any experience running LTSP on CentOS? After running updates, we can no longer login via the thin client. Any assistance would be appreciated.
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ldevel, i dont have experience with ltsp on Centos and i am new to ltsp but i could try assist if nobody else is around.
dyllan: that would be great
ldevel, are you having a problem booting the thin client, if so at what point?
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dyllan, at this point the TC appears to boot fine, and gets to the login screen. After entering the credentials, the client thinks for a while, then returns the message 'no response from server, restarting'.
ldevel, could be an authentication issue, have you tried different user names?
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dyllan, original setup: centos 6.4 server with fedora 11 clients. Centos ran updates yesterday, now cannot login from any of 5 accounts. Reproduced setup at office, cannot login with either root or user credentials from client.
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dyllan, I suspect something has indeed gone wrong with the authentication, but nothing I have researched so far has helped me fix it.
ldevel, can you chroot into the environment and the try and su - username to see if pam complains
dyllan, in chroot the username does not exist..
perhaps try creating a new user... if the user doesn't exist you will never get in obviously.
ldevel, check to see if your previous users are listed in /etc/passwd on the server not in chroot
sounds like perhaps your user file got overwritten
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dyllan, passwords appear to be intact outside chroot
I search informations about epoptes
an how to select which clients i can see
How i can specify an image to boot for some MAC address ?
i can have many filename "/ltsp/i386/pxelinux.0"; for some MAC ?
i need to make it in the dhcpd.conf ?
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I have centos experience
for whoever was asking
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does fat clients refers to <chroot> /etc/cups/cupsd.conf file ?
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vnc786 : have you try to set the options in the lts.conf ?
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έχει κάποιος γνώστης χρόνο για μια μικρή βοήθεια ή έχετε workshop?
Κύριε Άλκη, καλό μεσημέρι!
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!greek | echo pap
pap greek: Στο παρόν κανάλι μιλάνε μόνο Αγγλικά, για υποστήριξη στα Ελληνικά από την υπηρεσία Τεχνικής Στήριξης ΣΕΠΕΗΥ διαβάστε το http://ts.sch.gr/wiki/IRC και στη συνέχεια πληκτρολογήστε /j #ts.sch.gr
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Hi. How can I check is printer connected to the client? (I suspect UBS ports are not working)
Have you enabled usb functionality in your lts.conf ?
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have a look here: http://manpages.ubuntu.com/manpages/precise/man5/lts.conf.5.html
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Hi. How can I check is printer connected to the client? (I suspect USB ports are not working)
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Also, you can run tail -f on /var/log/syslog or /var/log/messages (you haven't told us which Linux distro you run yet ;-)) as you are connecting the USB device, to see what your machine does.
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Also, command dmesg shows all kernel messages, if there are hardware issues, dmesg will give hints.
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Ohh, sorry Ubuntu 12.04, HP P1102
What will I find in syslog & dmesg if printer's OK?
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i search how to use different image for different thin client
i need to launch on the thin client an application but not on all thin client
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jmilot, depending on what application, what distribution, etc.. (you haven't really provided much information for us to work with here), have a look at the RC_FILE options in lts.conf
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I have installed epoptes on the chroot and i need to only have some thin client not al
I have installed epoptes on the chroot and i need to only have some thin client not all
i don't need to see in epoptes teachers
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I'm looking into transitioning from windows to linux on our manufacturing floor(roughly 20 pcs). We have an app that is windows only, so I'm thinking of using desktop. From a management standpoint, I'm thinking of installing LTSP fat clients so I have a single linux image that can be maintained. My primary question is we already have a Solaris server that is responsible for most all network services(dhcp, samba, dns, email…). I'm wonde
if I can leverage this existing sola rise server for my LTSP server. The big caveat here is I can't install any software on the solaris server(different dept. / work politics)
sbalneav: Scotty !!!!!!!!!!!!!!!!!!!!!!!!!!!
sorry we're thinking of using rdesktop with a windows server to host the windows app to linux clients
what do you guys think?
dawydiuk: i think the rdesktop is a good idea. dunno about hosting it all from a solaris server
perhaps just hosting the dhcp would be ok, assuming it's a reasonable dhcp server
dunno if it's using ISC's dhcp server
I'm not sure what services the LTSP server is responsible for.
either NFS or NBD, dhcp, tftp
you won't survive without a linux server on the network
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I have ifs on the solaris server, we actually use it as a root filesystem for some of our linux based products we sell /test
damn spell check. sorry nfs == ifs
I was thinking I could use this as the root filesystem, but I
I've read nbd is better performance
yes, it is
I didn't realize I would need an x server if I'm using a fat client
is that correct?
umm, not sure
but you can't build the ltsp chroot on a non-linux box
for instance we have an ARM nfsroot running on our solaris server we use as a root
there's a bunch of commands that run to build that chroot that are not on solaris
oh I see
its the build process
so I'm now thinking an ltsp server is probably needed. Seeing as though solaris is hosting most network services, I'm wondering if this is an issue. For instance it looks like I need the dhcp server to hand out a tftp address which it currently doesn't.
any other service requirements that might cause problems you can think of?
yes, that would be the 'next-server' setting in dhcpd.conf
to point to the dhcp server
to point to the tftp server
if you could get the solaris dhcp to do that, then the rest would be standard ltsp on the linux server
my biggest fear is having to install a vlan as this would be a harder sell to management. I'm trying to make small changes so there more willing to buy in
it sounds like this isn't needed
jammcq, thanks you've been really helpful.
you don't really need a vlan for this
question on installation / server requirements. I'm on a shoe string budget(more like $0), but i do have a power edge 2900 server. I'm installing vmware esxi on it and thinking about hosting a windows server to host the terminal services, and then also putting an ltsp server on it. Any thoughts on this approach or hardware requirements(ram, cpu…)?
how much ram do you have in that 2900 ?
2900 is a pretty old server, it's probably low on ram and not much of a cpu
8GB, but I can upgrade this to pretty much what ever I need(so I guess I do have a budget)
I'd try and increase the ram. what's the CPU ?
xeon e5410 2.33Ghz
how many cores is that?
that's probably good enough
i'm amazed by how well vmware ESXi runs
awesome! max out the ram would be your recommendation
I've got 16gb on my ESXi servers and it works very well
Question on LTSP fat clients. I have existing PCs running windows that I'd like to transition to Linux as I said. I was thinking of using the fat client approach because I already have the client side hardware and was concerned if my server side hardware could keep up with a thin client approach. Although in the longer term thin client would be better so we can purchase less expensive replacement client side hardware. What do you think i
thin client a viable option for my setup?
what do you to do with your client ?
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if i understand you have a windows apps and you want to have access to ir ?
The machines will be running minicom and a windows app 99% of the time. The windows app is .net and java based, so pretty ram intensive. 1GB of RAM in the clients is questionable from a performance standpoint, 2GB is typical
Hi jmilot, hi all
you can connect to a windows with a ts client and after run windows app
on breaks they would surf the net, and probably stream music but thats not needed
for example, we use thin client on school, Wyse with 512Mb of RAM
thats the approach I'm considering. Windows server 2008 hosting app via terminal services, and rdesktop on clients to access the windows app
vlc installed on the chroot then they have acces to windows apps with a ts client
Thin client is a good idea i think
jmilot: you can disable the user epoptes client for teachers from "startup programs" in gnome, and the system epoptes client for individual LTSP clients from lts.conf RCFILE_01="rm /usr/sbin/epoptes-client"
Under [mac address] sections
So you don't need multiple images...
do you think a thin client is doable with my hardware?
oh my god i prefer that :)
which hardware ?
power edge 2900 16GB RAM ESXi hosting windows server 2008 and ltsp server
xeon 2.33Ghz quad core
dawydiuk: is that for only 1 windows app, or for many? Maybe you could get it to run under wine? It would save you a lot of trouble and a lot of money on TS CAL licenses..
I can upgrade ram further if needed
one windows app
Does it involve activex controls etc?
no I don't believe so
I'd try to run it under wine, first...
i think you don't need a lot of RAM for ltsp server
would I need a TS CAL license for each terminal services client
For windows 2008 server, yes
Your applications works on Seven Pro ?
I can have a solution for you
For a windows VM-based solution on top of LTSP, no...
Don't use Windows 2008 Server but Seven pro
for your application
an don't spend money for TSE Cal
I'm not sure I understand. Seven pro would need to be installed on each pc?
wouldn't I need a license for each version of seven pro?
i will explain you
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can you give me an email ?
i send you an email now
thanks! This channel is full of really helpful people.
I send you the email
if you can check your email
received. Reading now...
ok i can explain you more
the website is in French
for demo : http://www.planet-europe.fr/demo-portail-web.html
alkisg : i don't know how to disable for teachers
i cna disable for users in some groups ?
Right now my primary goal is to setup a server / client architecture and test it out. I'll put a client on the floor and test it out further. If it goes well I'll have to make a pitch to management to make the change across the board. If there are additional costs beyond my time, the pitch will be harder to make.
jmilot, so you work for this company or just use the software as an end user?
I'll want to look at wine first as if it works that would be my least expensive solution
alkisg, your suggestion is to not use a vm based solution on top of LTSP?
dawydiuk: if it can run under wine, then yes, so that you don't need to worry about windows servers, authentication, shared home directories, VMs etc
dawydiuk, i don't work in this company but we use it for our customers ( www.dotriver.eu)
if wine doesn't work for whatever reason, what would be your second suggestion?
alkisg, debian squeeze Trinity
jmilot: what does Trinity use for the desktop environment? gnome? lxde? its own?
Trinity is like kde 3.5
dawydiuk: I'd try more to get it to run under wine by installing the appropriate windows libs. Then I'd go for a single windows VM over LTSP.
jmilot: I think KDE does have a "startup programs dialog", let me google a bit...
jmilot: thin clients or fat?
but for NX i can disable epoptes-client
alkisg: by a full version of windows vm over ltsp, do you mean run virtual box or something similar with a fill windows install?
jmilot: this is from google, see if the menus apply: "Go to System Settings > Startup and Shutdown > Service Manager > Startup Services and uncheck the Nepomuk Search Module. "
Is there a startup services manager there?
dawydiuk: yes, assuming that you already have windows licenses for the clients, otherwise I'd go for a w2008 server
plus xfreerdp to run the app inside the session
alkisg, i don't understand how to specify run epoptes-client for students but not teachers
jmilot: each teacher would go there and disable epoptes-client
but epoptes-client is launch by the root user
No, there are 2 epoptes-clients running, one for system and one for user
jmilot: are the teachers usually working in the same clients? or they change seats?
alkisg: good idea I do have windows licenses. my only question would be every ltsp client would be running the same windows vm which is good from a management standpoint(only one windows image to change). Although what about legality / licenses wouldn't all copies of windows have the same key?
I'm not sure if it's illegal to boot the same VM to multiple clients with the same key when you already have licenses for them. But you can have an LTSP script change the license before the VM boots, if you need it, by copying the license file and registry key inside the .vdi disk.
Try the wine idea first :)
You can also run the local installation inside a VM, but you might need to copy the correct hal.dll first
E.g. with KVM, that is `kvm -m 512 /dev/sda`
You "ruin" their local installations this way because the VM will have a different hardware, so they won't be able to boot locally anymore
if i understand : when the thin client is launched the first epoptes-client is launch from root then when the user is connected he launch another epoptes process ?
but it's strange i have all user twice
when the user is connected, he launch on the thin client or the server ?
and yes i see users twice in epoptes
jmilot: what's the output of `w` on your server?
And the output of `ps aux|grep epoptes-client` ?
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.
So, they're logged in twice, using nx?
No LTSP involved?
If they log in twice, then they'd appear twice...
in fact, they are connected once
but in w they appear twice
for now, i have no exemple with ltsp
all users are away
i will send you maybe monday an example
So in your case there's no "root" epoptes-client, they don't have epoptes-client installed in their own pcs, right?
which nx server are you using? no machine? neatx? freenx? x2go?
we don't need to what they do on their own pc if they don't use ltsp
we use freenx
Try x2go, it's actually maintained, freenx has been dead for a few years
yes i know
It seems like it's logging in twice
but i can't
i can't use X2go for now because for now brocker doesn't work well
OK, then tell the teachers to disable epoptes-client from startup services
they don't have acces on it
but i think i can delete the file in their profile
i need to search on this
i need to go back to home
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Has anyone tried any network bandwidth QoS solutions? I wonder if we could have an LTSP server broadcast i386.img to the clients for local caching (e.g. in C:\ltsp\i386.img) while the LTSP clients are actually working, and without them taking a performance hit...
This could remove the "gigabit networking" limitation of LTSP, for fat clients...
what about something like lessfs's tier/btier?
though i'm not sure that works in RO mode
the client would setup a local tier that uses the nbd, configure so that it thinks local is always faster, it'll then fill the local "device" in the background
I haven't read about lessfs yet, but isn't that a filesystem? How would it manage network quality of service?
tier is a separate component made by the same guy
What I'm looking for is for an network-nice command, to use in something like `network-nice rsync /dev/nbd0 /mnt/ltsp/i386.img.new`
Then, on the next boot, i386.img.new would be renamed to i386.img...
the idea is that you give it ssd, then sas, then sata, each increasing in size and decreasing in performance, i'll pull most often used stuff to ssd, but if the whole system fits in ssd, it'll just live there
Ah, so it won't cache everything, but just parts of it? Sounds good...
so, you'd set up tier on the fat client, with local storage configures as "fast" and the ndb as "slow"
(actually, sounds better than what I proposed)
I had thought about such an idea, but I didn't know someone had implemented it :)
as long as the local can fit the whole img, it'll copy it all local. I don't know if it'll do it as access, or in the background
If it can be configured to do it on access, that'd be the best, usually there's no need for the whole image to be cached locally, some parts are never accessed
I bet that's the default
I do wish he's use svn and try to push some of his stuff into the kernel, or t least into some distro packaging.
|16:58||* alkisg also reads about "flashcache"...|
The idea of "speeding up rotational disks with a smaller ssd disk" is very similar to "using local disk caching for ltsp fat clients"... so yeah we can probably reuse something from there, and get very good speed ups!
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Hmmm although, for best results, we could probably do that as part of the nbd-client program.
nbd-client --local-cache=/path/to/file, wouter would probably accept such patches upstream
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|17:10||* alkisg checks xnbd-proxy...|
https://bitbucket.org/hirofuchi/xnbd/wiki/Home => In the proxy server mode of xNBD, all I/O requests are intercepted, and redirected to the target server if needed. All updated blocks are saved at the proxy server, and read blocks are also cached.
...sounds exactly what we were looking for, there's even an Ubuntu package for it, I'll try it next week
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Hi users of ltsp, i would like to set up a linux fat client with a few thin clients. Each thin client must be able to use the functionality of its pci expansion slot. This pci expansion slot will carry a sound card and stereo loopback cable aka 3.5mm audio cable. This will be a system to record multiple audio streams comming from the web at the same time. Can the linux terminal server project make this possible?
thin clients don't generally have direct access to the sound hardware, but can relay audio through pulseaudio over the network
fat clients would have direct access to the sound card, more or less just like a disked install
my guess is networked audio might have some latency issues if you really needed the timing to be solid.
Does that mean linux thin clients have no purpose for the expansion slots its designed with?
it means they have to use the expansion slots in a way that the thin client can access them
MonkWitDaFunk: maybe i'm not understanding your question
MonkWitDaFunk: with ltsp you can have thin clients (running all applications on server), fat clients (running all applications on the client hardware), or thin clients + local apps, or fat clients + remote apps ... though the last two tend to have trickinesses now and then
MonkWitDaFunk: i believe you can probably do the sort of thing you're talking about with LTSP, but you may have to experiment with exactly which model works best for you
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Is anyone familiar with server cals? I'm trying to find out how much it would cost to host a windows app on via terminal services. it looks like I need a cal for each device accessing the server, but not sure if there are different types of cals… Anyone know?
sorry Microsoft windows server client access licensces
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at what point does ltsp pull the IP to use in the system name? My rpi is coming up as ltsp0 instead of ltsp122...
but on the ldm it does list the ip correctly in the parenthesis next to the incorrect name
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Are there ltsp terminals that support three monitors?
...any desktop pc with 2 graphics cards? :)
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ohh, also, anyone know why my computer would freeze when I run 'ltsp-localapps amdcccle'? It actually opens the control thingy, but then immediately freezes (it used to log out to the ldm-greeter... I thought that was a little odd)
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ball: I have a desktop with a ati hd7870 that uses three screens
it seems to work pretty well, although figuring out all the left of right of crap in the xorg file kinda sucked
Hmm... I may have to use a PC then.
were you trying to get it on a thin client?
I haven't tried it and I don't know if it would work, but you may be able to use one of those usb dvi adapters... I have been wanting to try that for a little while now
|22:55||* ball ponders|
something like this http://www.newegg.com/Product/Product.aspx?Item=N82E16815136004
unless someone else here already knows that it doesn't work I may try doing this in the next week or two
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ball: are you pxe booting and then using ssh? or rdesktop?
I may PXE boot, or perhaps boot from a USB flash drive.
Once it's booted, it'll use RDP to connect to a desktop that's running on a Windows server
I THINK it would work.. but at worst you could just use a desktop with a cheap-ish ati card... I know that most of the hd series cards above the 5000 series have eyefinity/3 or more screens (with an !Active! displayPort adapter)
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anywho, I am out, but if anyone has the answers to any of my questions can you please respond and I will check the logs later... Thanks guys
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