New information:
I also have a Macintosh in my office running OS X (which is BSD unix). When I ssh from there to the same AIX machine and type `dx`, then press the "edit visual programs" button, I have no problem. Therefore, I don't believe it is network topology. So, my question becomes, does the server (which I guess is called dxexec) check the hardware configuration (eg video card) for certain features (such as 3d hardware interpolation, which I believe is not available on the Indigo2 but certainly is on the Onyx and the Mac)?

At 4:45 PM -0700 8/8/01, Richard Cook wrote:
Hello, when I attempt to ssh to our IBM AIX machine from my office (an SGI indigo2 box with IRIX 6.5) and run dx, I can run the dxui front end, but if I then try to run, say the editor from there, it complains that it cannot connect to dxexec. However, if I ssh to the same account on the same machine, but this time ssh FROM a different SGI (an Onyx running IRIX 6.5 in another building, possibly another network subnet), I can run dx and then spawn the dx editor as you would expect, with no troubles.

WHY OH WHY do I get this error from one box and not from the other? This is not a problem with paths, libraries, or other configuration issues on the AIX machine, because I ssh to the same account on the same machine. The ONLY difference between the two situations is the machine from which I ssh.

I believe the problem is perhaps related to dxui, a program which is launched by the DX front end when you click on one of its buttons. I notice (by observing that the front end "edit visual programs" button launches the following command:

/usr/local/OpenDX/4.1/dx/bin_ibm6000/dxui -edit -memory 128 -processors
1 -xrm DX.editorWindow.geometry:-0+0 -appPort 1920 -wizard -directory
/usr/local/OpenDX/4.1/dx/bin

When I try this command from the command line, it fails to work as well, UNLESS I eliminate the -appPort 1920 line, in which case it fires up the editor and server correctly!!!!

I am really confused, help!  Thanks.
--
opinions expressed here are not those of my employer.
Richard Cook
Lawrence Livermore National Laboratory
Bldg-551W Rm-1300, #5, Mail Stop L-661
7000 East Avenue,  Livermore, CA, 94550, USA
phone (925) 423-9605 (work)    fax (925) 424-2477

--

-Sincerely, Rich Cook 925-784-3077
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