SUMMARY: Starting CDE from SSH Shell Prompt

From: Anthony Gunia <>
Date: Fri Apr 16 2004 - 12:17:19 EDT
Hi all,

Thanks to all the following for responding to my question regarding starting
CDE from SSH shell prompt:

Jonathan Voigt
Crist Clark
Larye Parkins
Paul Greidanus
Blake Williford
Ray Pengelly

Here is my original question:

"Is there a way to start a CDE session from a remote SSH session using
something like Reflections for Windows or from a shell on Linux?  I can
bring up SMC, and other GUI tools this way, but would also like to bring
up the entire CDE."

In order to start a CDE session via an SSH shell, an Xwindows session is
required for the PC (Linux should have this already).  Three products that can
accomplish this on the PC are Hummingbird Exceed, Reflections, and Xmanager.
Reflections and Exceed have great Xsession wizards for setting up your
connection over SSH.  Xmanager does not have these, but works just as well and
is lower in price.  The command that seemed to work for me to access the CDE
that was recommended the most was:


Some other commands that folks used were as follows:

Xnest -query localhost (man page at: )

I had to make sure the following was set in the sshd_config on the server:

X11Forwarding yes
X11DisplayOffset 10

After the appropriate changes are made to the sshd_config, and have the
Xsession software on the PC, accessing the CDE worked.  Ray had a good "step
by step" for using Exceed as follows:

On PC:
    1. Exceed->Xconfig->Security - Set to allow any host access.
    2. Exceed->Xconfig->Display Set to Single Window mode.
    2. Started Exceed in passive mode.
    3. In SSH client made sure X11 tunneling was turned on.

On the Solaris Machine
    1. Set "X11Forwarding yes" in /etc/ssh/sshd_config
    2. Restarted sshd
    3. Made sure my login files (.login, .cshrc and .tcshrc) didn't set
the DISPLAY environment variable.

    1. Used ssh client to login to Solaris machine.
    2. Issued "echo $DISPLAY" to make sure X11forwarding is working on
Solaris Machine. It should return "<solarismachinehostname>:10.0" 10 refers
to the X11DisplayOffset variable from sshd_config.
    3. ran /usr/dt/bin/Xsession
    4. CDE came up and functioned.
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Received on Fri Apr 16 12:17:11 2004

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