Re: [Ltsp-discuss] xdmcp problem ... i think

[Derek D. <Der...@go...>]

Hi,

Here are some things you can try.  A short disclaimer.  All of this is 
relevant for RedHat.  Your mileage may vary on different distributions.

I am most familiar with KDM so I will recommend that you try kdm.  In 
redhat, you set 
DESKTOP="KDE"
in
/etc/sysconfig/desktop
and then restart X windows with
/sbin/telinit 3
wait a minute
/sbin/telinit 5

if you are already using kdm, you don't need to do that.

next verify that kdm is running with:
ps waux | grep kdm

next check
/etc/X11/xdm/Xaccess
there is a line that starts with an "*" that looks like
*                            any host can get a login window

make sure that line is not commented.  Restart X if you need to uncomment 
it.

Also check
/etc/X11/xdm/xdm-config
there is a line that looks like
#DisplayManager.requestPort:      0
Make sure that this line IS commented out.

Restart X if necessary

finally, make sure your workstation is trying to make an XDMCP connection 
to the right machine.  in 
/opt/ltsp/i386/etc/lts.conf

you should make sure the SERVER parameter is set to 192.168.0.254.

Basically, the grey screen is usually caused by one of three things
1. you don't have a display manager running
2. your display manager is not allowing xdmcp connections
3. your workstation is trying to connect to the wrong server
oh yeah,
4. Check and see if you have a firewall rule that is denying the XDMCP 
connections

HTH,
Derek


Quoting Sheilafel Vida <cur...@ly...>:

> We have this set-up where in eth0 is attached to LTSP and eth1 in the
> internet. (i've got posts bout this!)  The thing is, when we boot the
> wstation, we are stuck with the GREY SREEN with X CURSOR. We have tried
> checking all configuration files and have tried all the other suggestions 
in
> the mailing list but we can't get the thing to work.  Does our set-up has
> anything to do with it. I suspect it is about xdmcp as inidicated in the
> manual. Please help! I have attached our ifcfg-files and the network file 
as
> well.
> 
> 
> ifcfg-eth0
> 	DEVICE=eth0	
> 	BOOTPROTO =none
> 	IPADDR=192.168.0.254
> 	ONBOOT =yes
> 
> 
> ifcfg-eth1
> 	DEVICE=eth1
> 	BOOTPROTO=none
> 	BROADCAST=10.10.5.255
> 	IPADDR=10.10.5.42
> 	NETMASK=255.255.255.0
> 	NETWORK=10.10.5.0
> 	ONBOOT=yes
> 
> network
> 	NETWORKING=yes
> 	HOSTNAME=dakota
> 	GATEWAY=10.10.5.254
> 	#GATEWAYDEV=eth0
> 
> We really need help,. Thanks a lot. Good Day. : )
> 
> 
> 
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-- 
Derek Dresser
Gould Academy
Bethel, ME 04217
(207)824-7700

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