XDMCP forwarding

rwk at americom.com rwk at americom.com
Thu Sep 5 07:59:41 EST 2002


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
> 



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