display to remote machine

[T o n g <mlist4suntong@yahoo.com>]

Hi,

With the ssh/x-forwarding, I seems to have lost the ability to sent my 
local xdisplay to remote machine. How can I do it? 

Details: I'm sitting in front of machineA (my desktop) and conncet via ssh 
to machineB (my laptop). I can start a remote x-program on machineB, and 
the x11 forwarding will make the x-window appear on my local machineA. 
Now, what I want to do is exactly the reverse: start a local x-program 
and sent the x-window onto remote display on machineB. 

I've tried to set 

xhost +machineB from machineA, and 
xhost +machineA from machineB, but still 

DISPLAY=machineB:0.0 xterm & 

will give:

xterm Xt error: Can't open display: machineB:0.0

Is it still feasible? 

Thanks

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Tong (remove underscore(s) to reply)
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