one for the guru's : X11 through two SSH tunnels ?

From: Rob De Langhe (rob.delanghe@telindus.be)
Date: Fri Oct 17 2003 - 03:45:42 EDT


Hi all,
 
I want to know if this is feasable :
 
from workstation/desktop A with a private IP address (10.*), I connect with
"ssh" to an intermediate host B (with public IP address) getting an
interactive shell from its "sshd". Consider "B" to be like a proxy host in
-say- some DMZ.
 
>From B then, I need to connect accross the internet with "ssh" to a remote
host C (with public IP address), where in turn I get an interactive shell
from its "sshd".
 
Now on this host C, I need to launch an X-11 program, displaying back onto
the display of my workstation/desktop A ...
 
How about that ?
 
I know about tunneling X-11 through a single SSH-connection back to the
originating host, but how to achieve that the X-11 will go from C into a SSH
tunnel back to B, then back into a SSH-tunnel towards A ?
 
Awaiting anxiously any suggestions !
 
TIA
 
Rob

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