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jam | 1 May 2008 02:28
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Re: local printing (LTSP5)


On Wed, 2008-04-30 at 12:04 -0700,
ltsp-discuss-request@... wrote:
> > Terr!
> >
> > Can't get local printer working on thin client. In ltsp4 it worked
> like a
> > charm, but now i am running like a bumba and no result at all.
> 
> Did you perform
> 
> ltsp-update-image
> 
> after changing the lts.conf?

The whole point of lts.conf is that you DO NOT change the image ... BUT
you are using /var/lib/tftpboot/ltsp/i386/lts.conf
and not /opt/ltsp/i386/etc/lts.conf
aren't you?
James

PS if you're not using ubuntu then the /var version is in your tftp
directory often /tftpboot

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Gunnar | 1 May 2008 02:54
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Re: local printing (LTSP5)

Ühel kenal päeval (neljapäev, 1. mai 2008) kirjutas jam:

> The whole point of lts.conf is that you DO NOT change the image ... BUT
> you are using /var/lib/tftpboot/ltsp/i386/lts.conf
> and not /opt/ltsp/i386/etc/lts.conf
> aren't you?

Yes, i use /var/lib/tftpboot/ltsp/i386/lts.conf. Like i already told twice ;)

> PS if you're not using ubuntu then the /var version is in your tftp
> directory often /tftpboot

Kubuntu 8.04 here (server amd64, clients i386).

--

-- 

Thank you,
Tänud,

WK

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David Burgess | 1 May 2008 03:06
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transparent squid proxy on ltsp server

I'm attempting to setup squid3 for transparent proxying on my ltsp
server, and there seem to be some good howtos out there. These two are
good:

http://www.tldp.org/HOWTO/TransparentProxy-5.html

http://kuscsik.blogspot.com/2008/01/transparent-proxy-with-squid-3-on.html

but I'm getting stuck at the iptables part. Both of these howtos
assume that squid is running on your router or a bridge, accepting web
request on an external interface, thus:

INTERNET-----eth1-router/squid-eth0-----LAN

But seeing that my squid will be running on the ltsp server, I'm
thinking connections aren't coming in on any ip interface. My network
is fairly typical ltsp thus:

INTERNET------eth0-ltsp server/squid-eth1-------thin clients

so I'm thinking web requests don't come into the squid host on any
ethernet interface, right? I'm a bit of a novice with iptables, can
anybody give me a clue as how to redirect outgoing requests on eth0 to
127.0.0.1:3128? Would that be the correct thing to do?

Sorry if this is covered in the list, I've been searching the archives
but not finding anything too relevant. Thanks.

db
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David Burgess | 1 May 2008 06:27
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Re: network bottleneck

http://whocares.de/2008/04/20/make-intels-8257x-based-gigabit-adapters-work-with-ubuntu-804-hardy-heron/

I blacklisted the e1000 module on the server and updated e1000e from
sourceforge.net and my customers are reporting a much better
experience on gamefudge.com. Coincidentally, this also corrected the
sine-wave network activity reporting in gnome system monitor.

Thanks for the suggestions.

db

On Thu, Apr 24, 2008 at 7:35 PM, Sudev Barar <sbarar@...> wrote:
> On 24/04/2008, Cody Grosskopf <cgrossko@...> wrote:
>  > How about a squid caching proxy server?
>  >
>
>  If he (OP) establishes that uplink is the bottleneck then this was
>  what I was going to suggest as well.
>
>
>
>  --
>  Regards,
>  Sudev Barar
>
>  Read http://blog.sudev.in for topics ranging from here to there.
>
>  -------------------------------------------------------------------------
>  This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
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Kai Wollweber | 1 May 2008 14:32
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Re: transparent squid proxy on ltsp server

On Thursday 01 May 2008 03:06:57 David Burgess wrote:
> I'm attempting to setup squid3 for transparent proxying

> but I'm getting stuck at the iptables part. Both of these howtos
> assume that squid is running on your router or a bridge, accepting web
> request on an external interface, thus:
>
> INTERNET-----eth1-router/squid-eth0-----LAN
>
> But seeing that my squid will be running on the ltsp server, I'm
> thinking connections aren't coming in on any ip interface. My network
> is fairly typical ltsp thus:
>
> INTERNET------eth0-ltsp server/squid-eth1-------thin clients
>
> so I'm thinking web requests don't come into the squid host on any
> ethernet interface, right?

You got that right. 

For a transparent proxy you need to force all IP-packages adressed to the 
external interface, Port 52 (www) to localhost:3128 (assuming squid is 
listening on port 3128). But all users, who shall not use the proxy must not 
be redirected. Especially squid itself may not be redirected, otherwise no 
package could leave the system.

In other words: iptables must handle packages on user basis. The following 
lines are the relevant part of rules from my firewall. They are responsible 
for the transparent proxying. They are to be inserted into your 
firewall-rules. It's up to you to modify them for your specific sytem.
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Kai Wollweber | 1 May 2008 14:40
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Re: transparent squid proxy on ltsp server

On Thursday 01 May 2008 03:06:57 David Burgess wrote:
> I'm attempting to setup squid3 for transparent proxying on my ltsp
> server,

Just forgot one info. In my personal notes from 2005 I read that squid.conf 
needs the following parameters to function properly with the transparent 
proxy. I am not sure if this applies to the current Version of squid:

 httpd_accel_host virtual
 httpd_accel_port 80
 httpd_accel_with_proxy on
 httpd_accel_uses_host_header on

--

-- 
Kai Wollweber
Integrierte Gesamtschule
Eckernförde

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Carl | 1 May 2008 16:29

LTSP via DD-WRT

 This is my first mailinglist "post" so if there is something inherently
wrong with how I am going about this, feel free to correct me ;-).  On to
the problem....

I have a router flashed with the DD-WRT firmware, I was wondering if anyone
has successfully setup a LTSP setup using one of these routers as the DHCP
host.  I attempted variations of "dhcp-boot:pxelinux.0,,192.168.1.5" in
DNSMasq Settings, but the client reports it can't find the file.

Thanks,

Carl

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David Burgess | 1 May 2008 17:16
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Re: transparent squid proxy on ltsp server

On Thu, May 1, 2008 at 6:40 AM, Kai Wollweber <wollw@...> wrote:
> On Thursday 01 May 2008 03:06:57 David Burgess wrote:
>
> > I'm attempting to setup squid3 for transparent proxying on my ltsp
>  > server,
>
>  Just forgot one info. In my personal notes from 2005 I read that squid.conf
>  needs the following parameters to function properly with the transparent
>  proxy. I am not sure if this applies to the current Version of squid:
>
>   httpd_accel_host virtual
>   httpd_accel_port 80
>   httpd_accel_with_proxy on
>   httpd_accel_uses_host_header on

Spot on. Thanks for the info.

db

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Asmo Koskinen | 1 May 2008 18:33

Re: LTSP via DD-WRT

Carl kirjoitti:
> I have a router flashed with the DD-WRT firmware, I was wondering if anyone
> has successfully setup a LTSP setup using one of these routers as the DHCP
> host.

I just disabled dd-wrt's dhcp-server and used Edubuntu's own on my home 
test environment...

http://www.mail-archive.com/ltsp-discuss-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f <at> public.gmane.org/msg33238.html

Best Regards Asmo Koskinen.

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Marcelo Baldi | 1 May 2008 18:54
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Re: LTSP5: serial mouse ignored

On Tue, Apr 29, 2008 at 7:39 PM, Marcelo Baldi
<marcelo.baldi@...> wrote:
>  [...]
>  Nevertheless, now the thinclients with serial mouse have lost the
>  pointing device (on LTSP 4.2 they work fine).
>
>  The strange thing is that the xorg.conf generated on those thinclients
>  have a ps/2 device defined with "auto" protocol (instead of the
>  X_MOUSE_DEVICE=/dev/ttyS0 and X_MOUSE_PROTOCOL=microsoft of the
>  lts.conf)
>  [...]
>  ------------ lts.conf -----------
>
>  [default]
>     #SOUND=False
>     LOCALDEV=True
>     #CONFIGURE_X=False
>     X_COLOR_DEPTH=16
>
>  ...
>
>  # ThinClient-4
>  [00:08:54:0E:F5:76]
>     XSERVER=ati
>     X_MOUSE_DEVICE=/dev/ttyS0
>     X_MOUSE_PROTOCOL=microsoft
>     X_HORZSYNC=30-50
>     X_VERTREFRESH=50-120
>
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