[K12OSN] NWEA + rdesktop issues again

[Gideon Romm]

Tim-

When you run rdesktop from the gnome-session, it is the *Linux server*
that is connecting to the WTS.  When you run rdesktop as a screen on the
terminal, it is the *terminal* making the connection directly.

The terminal is just like any other computer in the sense that it has
its own IP address, is on its own subnet, etc.

So, when the terminal needs to connect to another subnet, it has to be
routed there by the server.  Here's how to enable this:

In dhcpd.conf:

option routers 192.168.0.254;

In /etc/sysctl.conf:

net/ipv4/ip_forward=1

Enable NAT from commandline (or this may be a service in K12LTSP):

iptables -t nat -A POSTROUTING -j MASQUEARADE -o eth1

(or service nat restart)

Make sure ip_forward is on:

echo "1" > /proc/sys/net/ipv4/ip_forward


Reboot the terminal.


Good luck,

-Gadi


On Fri, 2006-10-06 at 10:58 -0400, Timothy Hart wrote:
> Well I suppose it is working as a router. As much as it is when it
> gets a webpage. The WTS has an external IP address but is in my
> building. I suppose I could put it behind the particular LTS. That
> would prevent others from hitting it. However I can hit it through a
> gnome session and it DID work before. 
> 
> Tim
> 
> 
> On 10/6/06, Gideon Romm <ltsp at symbio-technologies.com> wrote:
>         >From the IP of the windows server, I am guessing you are
>         using your LTSP
>         box as a router?
>         
>         Make sure you have NAT and ip_forward enabled on the server,
>         as well as
>         the "option routers" definition in your dhcpd.conf.
>         
>         Otherwise, your terminal cant be routed to the WTS correctly.
>         
>         -Gadi
>         
>         On Fri, 2006-10-06 at 08:20 -0400, Timothy Hart wrote:
>         > It seems that rdesktop doesn't like me too much. Not sure
>         what I ever 
>         > did to it.
>         >
>         > Anyways. I used the tip Dave T. gave me about using another
>         screen so
>         > I could pump rdp sound through my terminals. I am connecting
>         to
>         > Windows Terminal Server for the NWEA test and need sound for
>         the 
>         > kindees and first graders. It worked perfectly last time I
>         tested it.
>         > However, now when I change to the screen 2 I get the gray
>         screen with
>         > the X in the middle. It is like rdesktop won't load. It does
>         in gnome 
>         > and from the command line with the same options chosen. Here
>         is a
>         > snippet of lts.conf.
>         >
>         >     SCREEN_01          = startx
>         >     SCREEN_02 = "rdesktop -r sound:local 65.18.42.7"
>         >
>         >        # local storage device (USB keys, cdrom, etc)
>         >        LOCAL_STORAGE = Y
>         >        LTSPFSD_OPTIONS=""
>         >
>         >     # uncomment the following line to enable SNMP support 
>         >     #SNMPD = Y
>         >
>         >         # enable sound by default
>         >         SOUND              = Y
>         >         # choose either esd or nasd to be the default (esd
>         only on
>         > x86_64)
>         >     # rdp is used for sound for Windows Termianl Service
>         Sound 
>         >     SOUND_DAEMON = "rdp"
>         >
>         >
>         > Anyone know what might be causing this not to work?
>         >
>         > Tim
>         > _______________________________________________
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>         > K12OSN at redhat.com
>         > https://www.redhat.com/mailman/listinfo/k12osn
>         > For more info see <http://www.k12os.org>
>         --
>         --------------------------------------------------------
>         Gideon Romm | Proud LTSP Developer
>         ltsp at symbio-technologies.com
>         
>         Support LTSP!  Buy your hardware at:
>         
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>                 www.DisklessThinClients.com
>         
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>         
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-- 
--------------------------------------------------------
Gideon Romm | Proud LTSP Developer
ltsp at symbio-technologies.com

Support LTSP!  Buy your hardware at:

        www.DisklessWorkstations.com
        www.DisklessThinClients.com 
 
(use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com)