XDMCP forwarding

Darren Tucker dtucker at zip.com.au
Wed Sep 4 22:42:36 EST 2002


rwk at americom.com wrote:
> I don't know if this is a bug or a limitation in ssh2 but I am unable to
> get get an xdm (or gdm) login on my machine at home through an ssh
> tunnel through our firewall at work.
> 
> Should this be possible using ssh port forwarding?

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."

-- 
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.



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