XWin -indirect

Alexander Gottwald Alexander.Gottwald@s1999.tu-chemnitz.de
Wed May 4 17:56:00 GMT 2005

Bill Schaffer wrote:

> The problem:
> Well, the user does get the list of systems, however, they can only
> access the system specified as the parameter to the "indirect" option.
>   All of the other systems are blocked from accessing the XWin server
> on the user's machine, including the user's own machine.  An excerpt
> from kdm log output on one of the Linux systems:
>       Hung in XOpenDisplay(users_system_addr:0), aborting
>       server open failed for users_system_addr:0, giving up
> This seems like an access control problem with XWin at the user's
> system.  I would like to run "xhost +" but the local system can't
> access XWin either.  (Yes, I realize the security implications, but
> want to get it working first)  I have tried establishing an
> "/etc/X0.host" file, but XWin seems to disregard it.

XDMCP overrides the xhost access system. More likely a firewall is blocking
access from the system. Are all hosts on the same network?

Running some tracing with tcpdump may help.

NP: SITD - Wegweiser
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