XDMCP forwarding

Gary E. Miller gem at rellim.com
Thu Sep 5 08:21:51 EST 2002


Yo rwk!

Why bother?  You are already authenticated and logged in.  Just double
check that the ssh connection has X tunneling up and that DISPLAY var is
set to use the SSH tunnel.  Then just run the app of your choice on the
remote end and the local window manager.

If you really must run a remote window manager, then start windows on
you local host without a window manager, then ssh over to the remote,
be sure DISPLAY is set and working, then start the remote window manager.

In most cases running a remote window manager will confuse people to
distraction.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701
	gem at rellim.com  Tel:+1(541)382-8588 Fax: +1(541)382-8676

On 4 Sep 2002 rwk at americom.com wrote:

> Is anyone aware of any other (non-ssh) way to run a gdm connection through
> a firewall?
>
> > On Wed, 2002-09-04 at 22:42, Darren Tucker wrote:
> > > No.  Xdcmp is UDP based.  See:
> > > http://tldp.org/HOWTO/XDMCP-HOWTO/procedure.html#SECURITY which says, in
> > > part, "Unfortunately, XDMCP uses UDP, not TCP, therefore, it is not
> > > natively able to use it with SSH."
> >
> > There is no standard way to forward UDP over a SSH connection. Even if
> > there was, it would be pretty easy to spoof packets perhaps even packets
> > to localhost (depending on the OS).
> >
> > -d
> >
> _______________________________________________
> openssh-unix-dev at mindrot.org mailing list
> http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
>




More information about the openssh-unix-dev mailing list