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Cannot Telnet or XDMCP to Centos 5.3 dashboard

I can ping this server but that is all.  Please advise.
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rtod2
Asked:
rtod2
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1 Solution
 
ai_ja_naiCommented:
what do you insert in the XDM login manager? and what error message does it give back to you?
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rtod2Author Commented:
Where do I find the XDM login manager?
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ai_ja_naiCommented:
if you are trying to login via xdmcp, you must be using GDM, KDM or XDM, right? it's the login screen of a X session
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rtod2Author Commented:
I selected all the options on install of Centos 5.3.  Whatever it defaulted to is what I have.  It is at work or I would check now.  A step-by-step on how to enable the telnet and xdmcp for the box is helpful if you can provide it.  I am 'very' unfamiliar with Linux.  In fact, this is my first attempt at loading a Linux system.
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ai_ja_naiCommented:
you can't start with mountains climbing if you don't even know how to walk in plains :)

When the graphical login screen opens up (and it asks for user and password) there should be an Option button. Clicking on it displays a curtain menu. Can you tell me the available options?

(Unless you are in a pure command line mode; in this case, you want to use ssh to login into the remote server)
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rtod2Author Commented:
I am in GNOME
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ai_ja_naiCommented:
Ok, what happens if you click on the option button BEFORE logging into GNOME? You should see a "Remote desktop" or "XDMCP" option

BTW, do you actually have to login or are you automatically thrown to the desktop without any passwords?
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rtod2Author Commented:
I can now telnet but XDMCP isn't working.  If I am sitting at the console, GNOME comes up automatically.  When running xming, I can get a text interface that will let me start gui applications.  When selecting xdmcp though (for access to the GNOME dashboard), no luck.
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ai_ja_naiCommented:
Ok, I see (maybe)
In GNOME, go to System->Administration->Login Screen
In the Remote tab enable remote logins
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rtod2Author Commented:
Excellent.  I will give that a try first thing!
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rtod2Author Commented:
Thank You!   That got me part way.
I am now able to connect to the graphical login screen just as if I were sitting at the console and even apparently able to log-in.  

After logging in though (having successfully used your suggestion above), I am now presented with a black screen and a CURSOR!  This cursor and black screen is good news because before, I could not get that far and like I was saying, it appears to have taken my login.

What now?
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ai_ja_naiCommented:
..er, yes, but you would be supposed to see even the wallpaper and the icons :D
Something went definetely wrong... do you have ATI proprietary drivers?
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rtod2Author Commented:
I do not know if the drivers are ATI or not.  I just let the CentOS 5.3 installation do the work.  I did not load additional drivers.
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ai_ja_naiCommented:
Yes but... on which hardware are you running?
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rtod2Author Commented:
Sorry.   It's a Dell PowerEdge 2950
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ai_ja_naiCommented:
And does GNOME works flawlessly on that PowerEdge?
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rtod2Author Commented:
Yes.  From what I can tell, everything works like a charm.  I had considered xhosts+ or something.  Not sure how to use that command.  I'm not convinced it is a driver issue.  I chose to install KDE also but not sure how to begin using it.
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ai_ja_naiCommented:
It could be a Xming issue. Try with Cygwin/X
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rtod2Author Commented:
I need it to be portable and under 1gb (the size of the thumb drives we are issued).  cygwin/x is a HUGE application.
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ai_ja_naiCommented:
But Xming doesn't work :) You get to connect to X, but the window manager won't come up. What good is that going to do? And are you sure it's such a huge package? You just have to select xinit, during installer
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rtod2Author Commented:
The biggest barrier i think is that I am largely a windows guy and new to the world of unix.  I've contracted an outsourcer to see if he can figure out how to get xming to do this in his environment.  I really need to use the thumb drive app if possible.
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ai_ja_naiCommented:
Cygwin/X will fit in 1GB, for sure. My Ubuntu Linux has full blown 3d fps games installed , office suite, browsers, security patches, media players and stuff and still it fits into 5GB. Give it a try.


OR, you could use a pendrive installed Linux, so that you can use natively XDMCP and log in in every system with a live distro
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rtod2Author Commented:
Maybe I did something wrong then.  Can you provide a link to what you are using because cygwin/x for me is huge?  What steps (1.2.3) are needed to get it on a thumb drive?
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ai_ja_naiCommented:
how about the user's guide on Cygwin/X website?
http://x.cygwin.com/docs/ug/setup-cygwin-x-installing.html
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rtod2Author Commented:
I did figure out how to get it on a thumb drive.  XCygwin with the XInit package appears to fit on a thumb drive at just over 150MB which is plenty small for my purposes.  

Back to my previous question though about accessing the dashboard.  It appears that cygwin will allow me to access xwindows GUIs such as xclock many other x11 related GUIs.  The dashboard is different and I am still unable to view that as I get the std dos-like black window with XCygwin.
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ai_ja_naiCommented:
It's because you are in multiwindow mode.
Try running:
XWin.exe -query <put remote ip address here>

Open in new window

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rtod2Author Commented:
Ah OK, perfect...  getting closer.

So I now have the current cygwin.bat file:
@echo off
chdir bin
bash --login -i

You are simply suggesting to change it from bash to xwin.exe -query ip, which works perfectly.  I'll experiment.  Thanks very much for that.  So my guess is that I will either a number of batch files, or a number of items in the batch file.  I'd like to have a menu where I could make friendly names for all the options.  In the case of the above I might have:

1) Std Bash Prompt
2) MachineX Gnome Dashboard

Others might be:
3) MachineY CShell
etc...

I could then simply select the option I wanted.  I'd also like to get the dashboard via SSH or SSH2 as opposed to XDMCP.
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rtod2Author Commented:
Ah OK, perfect...  getting closer.

So I now have the current cygwin.bat file:
@echo off
chdir bin
bash --login -i

You are simply suggesting to change it from bash to xwin.exe -query ip, which works perfectly.  I'll experiment.  Thanks very much for that.  So my guess is that I will either a number of batch files, or a number of items in the batch file.  I'd like to have a menu where I could make friendly names for all the options.  In the case of the above I might have:

1) Std Bash Prompt
2) MachineX Gnome Dashboard

Others might be:
3) MachineY CShell
etc...

I could then simply select the option I wanted.  I'd also like to get the dashboard via SSH or SSH2 as opposed to XDMCP.
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rtod2Author Commented:
You are a GOD!  You were absolutely correct.  Please find my follow-up question here http://www.experts-exchange.com/OS/Linux/Distributions/CentOS/Q_24406642.html
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ai_ja_naiCommented:
Thanks, you do me too much honour :)
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