Trouble running remote Java apps with FC3
From: Bernie Lofaso (bjlofaso_at_nospam.utexas.net)
Date: 02/16/05
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Date: Wed, 16 Feb 2005 15:03:05 -0600
For quite a while I have been running Java applications which provide a
GUI remotely. Here's what has worked for me:
1) I have been running a workstation with Red Had Linux 9 on my desk.
2) I log into a remote machine (also running RH9) via 'ssh -X
machine_name'. (Note the -X option redirects X-windows traffic through
the ssh connection to my local machine.)
3) Start up my java application and viola - the application's GUI
appears and I interact with it as if it were a locally run app.
Such is the magic of X-windows ....
However ....
Given that the RH9 distro is a bit old, I decided to upgrade my machine
to Fedora Core 3. I performed an upgrade of the existing system rather
than a complete wipe and re-install of the OS. Things seemed to go well
until I attempted to get back to work. Now when I run my java app the
window that opens on my machine is full-screen, only part of the GUI
shows, and the part that shows looks like it thinks it's in a much
smaller window (the size it would be if the window hadn't zoomed to
full-screen). Given that I've done a complete OS upgrade (yes, I did the
updates using RHN after the installation too) there are a few possible
culprits, but I'm guessing that the fact that FC3 uses a different
X-server than RH9 is a probable cause. Has anyone else noticed similar
behavior and if so have you found any work-arounds?
Additionally, I have tried to not use the X-protocol tunnelling through
ssh option. I opened the firewall on my desktop unit and allowed access
using xhost, then on the remote machine tried something simple like:
xclock -display myMachine:0.0
and even this doesn't work. I'm a bit baffled and nearly ready to nuke
and re-install RH9 again. Any suggestions?
Bernie Lofaso
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