James M Stephenson wrote:
Ted Powell wrote:
On Tue, May 16, 2006 at 11:41:12PM -0500, James M Stephenson wrote:
All,
I would like to know what kind of enhancements you might like to
see to the OSCAR Gui if it were implemented in a web mode. I am
applying for the Google Summer of Code 2006 and would like some
feedback from the user community in the case that I am selected. I
myself as an OSCAR user would benefit from this.
--Matt
I connect to the head node of the cluster I'm developing using SSH with
X forwarding, and the GUI shows up on my 2880x1200 monitor pair just
fine.
Are you unable to use SSH and/or X between your preferred work location
and your cluster, and are therefore looking for an alternative access
method?
Or do you see some possible benefits to using a web browser for display
instead of the Qt and/or Tk toolkits?
I'm not yet far enough into OSCAR to comment one way or the other on the
quality of the existing GUI's _use_ of Qt/Tk (looks fine so far), but
I do know enough about the Qt and Tk toolkits to hold the opinion that
their _capabilities_ are well in excess of those of a generic web
browser.
Of course, I could be missing something; hence my questions.
The goal would be to enable scientists that are not as familiar to
using X be able to maintain the cluster without them having to waste
valuable time in learning how to setup and configure an X-server on
their own PC. Clustering in my experience is typically used where a
group of engineers/scientists that want something simulated get some
developers to create the programs, and then they get rid of the
developers and just use the final product over and over again. I am
working right now with an optics lab doing simulations of emag fields
in a medium. The other lab workers and the professor consider
learning anything unix a burden, so its to soften the burden for
people like that. Not something a programmer would use necessarily.
--Matt
I have found the use of VNC to be helpful on the head node for a few GUI
applications, it has the benefit of running at runlevel 3, tunnels over
ssh and has well developed VNC win32 clients which most users can
manage. I have also used Webmin and SWAT webshells and found that they
are OK for trained sysadmins, but one must know what they are doing to
use them and they are slow over SSL. Many 3rd party modules already
exist for Webmin & some are related to clusters. "WYSIWYG: The problems
with GUIs is, what you see is ALL you get."
VNC over SSH2 - A TightVNC Tutorial
http://www.vanemery.com/Linux/VNC/vnc-over-ssh.html
Set up the VNC Server in Fedora
http://www.raoul.shacknet.nu/2005/11/10/configure-vnc-server-in-fedora/
redhat.com | Taking your desktop virtual with VNC, part 2
http://www.redhat.com/magazine/007may05/features/vnc/
Webmin & Usermin- http://www.webmin.com/
http://webmin.com/ssl.html
http://www.webmin.com/uintro.html
http://rpmforge.net/user/packages/webmin/
http://webadminmodules.sourceforge.net/?page=Cluster
Simple tasks like adding a user are fairly straight forward, configuring
complex services like Apache, DNS or Samba requires training even in a GUI.
http://www.webmin.com/screens.html
http://www.webmin.com/screens/edit_user.gif
http://www.webmin.com/screens/apache.gif
The Book of Webmin
http://www.swelltech.com/support/pdfs/webminguide.pdf
YaST - Yet Another Setup Tool
http://en.wikipedia.org/wiki/YaST
http://shots.osdir.com/slideshows/slideshow.php?release=145&slide=1
Be careful not to reinvent the wheel. Other Thin Client & NX solutions
may apply & improve performance or not, some OSS/FS some commercial (NX,
Citrix, Tarantella...)
Linux Terminal Server Project - http://www.ltsp.org/
http://wiki.ltsp.org/twiki/bin/view/Ltsp/ScreenScripts
http://www.rdesktop.org/
FreeNX Howto
http://www.gnomeuser.org/documents/howto/nx.html
HOWTO setup Freenx on Fedora - FedoraNEWS.ORG
http://fedoranews.org/contributors/rick_stout/freenx/
http://www.nomachine.com/management_tools.php
http://www.2x.com/pxes/
http://www.citrix.com/
http://thinstation.sourceforge.net/wiki/index.php/ThIndex
Perhaps some new Java/AJAX/Rails WebShell could be developed that
performs better than Webmin, but it would be nice to utilize any admin
plugins and modules already created.
http://ajax.phpmagazine.net/2006/04/zimbra_ale_ajax_linking_and_em.html
http://sourceforge.net/project/screenshots.php?group_id=153217
http://www.zimbra.com/products/ss_admin_new_account.html
-HTH [EMAIL PROTECTED]
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