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Re: xwinclip authorisation problem with remote hosts using XDMCP
- From: Brian Genisio <briangenisio at yahoo dot com>
- To: Matthew Donald <matthew dot donald at motile dot net>, cygwin-xfree at cygwin dot com
- Date: Mon, 14 Jan 2002 11:25:29 -0800 (PST)
- Subject: Re: xwinclip authorisation problem with remote hosts using XDMCP
What is your DISPLAY variable set to? I am a bit confused, since one output
talks about a server going to 127.0.0.1:3.0 . If your X server is on :0,
xwinclip will never be able to connect, regardless of the authorities.
Will other local X programs run? xterm, xeyes, xwininfo, etc?
Brian
--- Matthew Donald <matthew.donald@motile.net> wrote:
> Hi,
>
> There is a problem when using xwinclip with an X server which connects to a
> remote host using XDMCP.
>
> Basically the sequence is this:
>
> 1. Execute "XWin :0 -query some.host.system". Initially, the authorisation
> file contains no records, so the localhost
> has access to the X server by default. I quote from the Xserver man page:
>
> If this file contains any authorization records, the
> local host is not automatically allowed access to the server, and
> only clients
> which send one of the authorization records contained in the file in the
> connection
> setup information will be allowed access.
>
> 2. XDMCP is used to query some.host.system, which then opens a connection
> to the local PC. The first
> thing done is that XDMCP adds an auth record for some.host.system This
> means that localhost loses access
> to the X server.
>
> 3. After XWin starts, xwinclip executes on the local host. It fails with
> the error message: "Could not open display"
>
> Ok, so I added an xhost command, to explicitly allow access:
>
> xhost +127.0.0.1
>
> I failed with the error messages:
>
> Xlib: connection to "127.0.0.1:0.0" refused by server
> Xlib: Client is not authorized to connect to Server
>
> I read some more about host access, and I created a /etc/X0.hosts file, and
> I deleted the .Xauthority file.
> This caused a different error. XWin failed with the message: "X connection
> to 127.0.0.1:3.0 broken
> (explicit kill or server shutdown)."
>
> I tried running XWin with the '-ac' command line parameter. This is meant
> to open access to all hosts.
> Xwinclip still couldn't open the display.
>
> If XWin is used with a local window manager, this xwinclip (and any other
> client program which runs on the PC)
> will run sucessfully. However, if XDMCP is used to connect to another
> system, then it fails.
>
> I'm completely stuck. Any help would be very appreciated.
>
> regards Matthew
>
>
>
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