How do I fix "XDMCP fatal error: Manager unwilling Host unwilling"?

[Angus Veitch]

This is essentially Part 2 of my other email ("Duplication error upon 
startx with XWin :0; No terminal with XWin :1").

I'm running a freshly downloaded cygwin/x, and am trying to connect 
WinXP to a (nearly) freshly installed Linux box running MEPIS.

Running the default startxdmcp.bat with "XWin :0 -query %REMOTE_HOST% 
-nodecoration -lesspointer" fails at: "Fatal server error: XDMCP fatal 
error: Manager unwilling Host unwilling".  The full XWin.log follows:

---------------------------------------------------------
Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 6.8.2.0-3

Contact: cygwin-xfree@cygwin.com

XWin was started with the following command line:

/usr/X11R6/bin/XWin :0 -query 192.168.0.111 -nodecoration
-lesspointer

ddxProcessArgument - Initializing default screens
winInitializeDefaultScreens - w 1600 h 1200
winInitializeDefaultScreens - Returning
_XSERVTransmkdir: Owner of /tmp/.X11-unix should be set to root
(II) XF86Config is not supported
(II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
(==) FontPath set to 
"/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/TTF/,/usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/lib/X11/fonts/CID/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/"
MIT-SHM extension disabled due to lack of kernel support
XFree86-Bigfont extension local-client optimization disabled due to lack 
of shared memory support in the kernel
(--) Setting autorepeat to delay=500, rate=31
(--) winConfigKeyboard - Layout: "00000409" (00000409)
(--) Using preset keyboard for "English (USA)" (409), type "4"
(--) 5 mouse buttons found
Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing 
from list!

Fatal server error:
XDMCP fatal error: Manager unwilling Host unwilling

winDeinitMultiWindowWM - Noting shutdown in progress
---------------------------------------------------------

Now, I'm new to both Linux and XDMCP, so I'm still feeling my way in 
this area.  But I have managed to track down "/etc/kde3/kdm/kdmrc" and 
modify the approriate line to:

[Xdmcp]
Enable=true

I have also done a few other things specified in the "XDMCP HowTo" 
available at http://en.tldp.org/HOWTO/XDMCP-HOWTO/.  But due to the 
specifics of MEPIS combined with my inexperience with Linux, there is 
still a reasonable chance that I have missed something.

Also, I think (but am not sure) that I have set up GuardDog (firewall) 
on MEPIS to allow the XDMCP requests.  At least I am now getting the 
same results with the firewall turned off as when it is turned on.

What is the likely cause of the fatal error in this case?  What steps 
should I take to overcome it?

Thanks,
Angus.



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