Re: [Ltsp-discuss] Client stops at setting up NIC

2017-02-22 Thread Andreas-Christoph Bernstein 


Zitat von Alkis Georgopoulos <alk...@gmail.com>:

> On 22/02/2017 10:37 πμ, Andreas-Christoph Bernstein wrote:
>> Interesting. That is new, right? I thought ltsp-pnp doesn't create a
>> chroot. That's why we are still using ltsp-server-standalone on our
>> ubuntu server.
>>
>> So nowadays i would start with ltsp-pnp? Is ltsp-server-standalone
>> obsolete (on ubuntu)?
>
>
> ltsp-pnp has been around for more than 5 years and has been used in
> thousands of installations. If it suits your needs, you can surely use
> it. ltsp-build-client might be deprecated in ltsp6 in favor of other
> methods to build chroots, but for ltsp5 it's of course still supported.
>
> The ltsp-pnp wiki page does say that you need to install the
> ltsp-server-standalone package, so you have some misunderstanding there,
> let's try to clear it up.
>
> ltsp-server: an LTSP server where we don't want DHCPD (and possibly
> TFTPD) because we have those servers elsewhere in our LAN.
> ltsp-server-standalone: an LTSP server which will have DHCPD and TFTPD.
>
> Those are true for both classic ltsp and for ltsp-pnp.
> The difference is that:
> The ltsp-pnp wiki page suggests that you install ltsp-server-standalone
> with dnsmasq as the dhcpd and tftpd server.
> While in the classic ltsp, ltsp-server-standalone installed
> isc-dhcp-server and tftpd-hpa.
>
> The reason that ltsp-pnp prefers dnsmasq instead of those 2 others, is
> because it can also function as "proxyDHCP", while isc-dhcp-server
> cannot do that.
> ProxyDHCP means: "I have a router that does DHCP in my network, so the
> LTSP server should only send the boot filename and root path, and let
> the router manage the IP leases".
>
> Since the "router is DHCPD" scenario is very very common, that's why
> ltsp-pnp preferred dnsmasq and ProxyDHCP.
> And it became the default in recent classic LTSP too, so new LTSP
> installations (2017+) will get dnsmasq by default instead of the other 2
> servers.
> That means that the ltsp-pnp differences from the classic ltsp are now
> really really small; just running `ltsp-update-image -c /` instead of
> running `ltsp-build-client` for the default image.
>
> Btw, `ltsp-config dnsmasq` also sets up a classic DHCPD in the
> 192.168.67.x range, so if you want the old "dual nic" setup, you can
> just set the second nic to 192.168.67.1 and you're ready to go.
>
>
>
> To sum up: ltsp-server-standalone used to prefer to depend on
> isc-dhcp-server and tftpd-hpa, while now it prefers to depends on dnsmasq.
> If someone doesn't want dnsmasq, he can just install the 2 other ones.
>

Thank you Alkis for your detailed response. That clears things up.


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Re: [Ltsp-discuss] Client stops at setting up NIC

2017-02-22 Thread Andreas-Christoph Bernstein 


Zitat von Alkis Georgopoulos :

> On 22/02/2017 10:10 πμ, Johan Kragsterman wrote:
>>
>> Thanks for the clarification of that, didn't know that.
>  > What I have read about ltsp-pnp is that it can't use other clients
>  > than the architecture of the server. Am I wrong there...?
>  > If so, that makes all the difference.
>
> For example, you can have a 64bit server,
> with the default 64bit ltsp-pnp chroot that can boot 64bit thin and fat
> clients,
> and then you can decide to run ltsp-build-client --arch i386 to support
> older i386 thin clients,
> and then you can decide to follow
> https://help.ubuntu.com/community/UbuntuLTSP/RaspberryPi to build an
> armhf chroot to support booting raspberry pis too,
> etc etc
>
> ltsp-pnp just helps you set up your initial environment,
> and gives you a graphical way to manage your default chroot,
> it doesn't impose any limits to what you can do with your ltsp installation.


Interesting. That is new, right? I thought ltsp-pnp doesn't create a  
chroot. That's why we are still using ltsp-server-standalone on our  
ubuntu server.

So nowadays i would start with ltsp-pnp? Is ltsp-server-standalone  
obsolete (on ubuntu)?

Andreas


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Re: [Ltsp-discuss] Help with Lubuntu 14.04

2014-08-14 Thread Andreas-Christoph Bernstein 
Hi Bruno,

I remember that error message. I think your desktop manager needs  
hardware acceleration (gnome-session-is-accelerated). So either you  
switch to gnome-session-fallback or you need to install additional  
driver.

I added the xorg-edgers ppa for our setup and installed nvidia-331 (we  
have only nvidia cards)

https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa

Andreas

Zitat von Bruno Vane bro...@gmail.com:

 Hi,

 I've installed a new teste server with Ubuntu 14.04 x64 and ltsp-server.
 Everything is going well until i try to login with FAT client.
 After I put de username/password, the desktop didn't load.
 In .xsessions-errors in the user folder i see this:

 Xsession: X session started for bruno at Thu Aug 14 12:36:04 BRT 2014
 localuser:bruno being added to access control list
 Script for ibus started at run_im.
 Script for auto started at run_im.
 Script for default started at run_im.
 Script for ibus started at run_im.
 Script for auto started at run_im.
 Script for default started at run_im.
 gnome-session-is-accelerated: llvmpipe detected.
 x-session-manager[1470]: CRITICAL: We failed, but the fail whale is dead.
 Sorry

 Anyone knows what is this?





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Re: [Ltsp-discuss] Redirecting fat client login and home dirs

2012-11-14 Thread Andreas-Christoph Bernstein 
Hi,

You could use LDAP for authentication and NFS for the home directories.

regards
Andreas

On 11/14/2012 01:51 PM, christoffer krakou wrote:
 Hello list.

 I have an idea, and i want to know if anyone has any experience with
 this or something similar. I was to create a Fat client infrastructure
 using ubuntu. However, i want the clients to log into a third party
 server, rather than the server they boot from. This third party server
 will also store the users home directories. Has anyone tried this? Is
 there any documentation i can look at that could provide a clue?


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Re: [Ltsp-discuss] Graphics acceleration

2011-10-24 Thread Andreas-Christoph Bernstein 
Hi,

You can check with the following command on your client:

glxinfo | grep direct rendering

If it's working the result will be:
   direct rendering: Yes

Andreas

Am 24.10.2011 14:41, schrieb relosrl:
 Hi, how can I understand if the video hardware acceleration is turned on
 for client?
 Thanks

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