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RE: [K12OSN] K12LTSP 3.0 and VNC server


     Thank you very much for the advice on this issue. Yesterday, I was
reading a news article about the city of Houston TX ditching MS Office in
favor of Slimdesk (a thin client office suite) and somewere in reading the
talkback section, by strange coincidence, I stumbled upon this site:


...where they have a full blown version of VNC running in a web browser with
all the bells and whistles that many of us are looking for. So I dug a
little deeper and found that they have released their modified VNC client
apps for Linux and Mac, but what I find interesting is this part at
http://www.workspot.org/vnc/ where they say:

"both the Linux & Macintosh VNC viewer clients have been modified so that
they can be started up as browser helper apps. (The Windows client already
contains code to do so.) That lets our users click a link in the browser to
automatically start up a VNC session using the native client: the browser
downloads a VNC config file and then starts up the VNC viewer client which
reads the config file to get the connection information (host, port,
password, etc.)"

Am I reading this right in that all you need to do for the windows java app
is to somehow serve a VNC config file to the browser first and that passes
the viewer all the parameters it needs so you get to skip the default
"blank" password issue and such?

In their faq section there is also mention of them running this stuff in a
cluster. Sounds like what some of us are trying to accomplish.

Anyway, I signed up so I can give it a spin and I'm waiting for my login
info to arrive. When it does, I'll try it out and let you know how it all
works/looks. I'll post some screenies also if anyone's interested.


>-----Original Message-----
>From: k12osn-admin redhat com [mailto:k12osn-admin redhat com]On Behalf
>Of Eric Harrison
>Sent: Wednesday, January 22, 2003 12:21 AM
>To: k12osn redhat com
>Subject: Re: [K12OSN] K12LTSP 3.0 and VNC server
>On Tue, 21 Jan 2003, Rick Hartz wrote:
>>     I've done 2 installs of the K12LTSP 3.0 and in both instances, when I
>>connect with the VNC viewer, I get the infamous gray screen with
>an X in the
>>middle. I've noticed it's been setup with multiple resolutions and color
>>depths but in every case I still get the gray screen problem. If
>there is a
>>way to get this working, does it allow users other than root to use the
>>system remotely via VNC? We really, really need to find a way to run the
>>LTSP from within a web browser if there is any method of doing
>this. This is
>>just the trick we need in our district to gain acceptance of the terminal
>>server idea (roaming users). VNC would work fine but I thought
>you can only
>>login as root with it? Any ideas?
>If you look way-back in the list archives, you'll see that providing
>vnc "web access" out-of-the-box has been bugging me for a while now.
>I did a google search and found this jem:
>	http://www.realvnc.com/pipermail/vnc-list/2002-October/033818.html
>I built packages which give vnc "web access" to K12LTSP, but there are
>a couple serious caveats that dimish the usefulness:
>First is that you have to have httpd running and the appropriate holes in
>the firewall (tcp ports 80, 5903, 5904).
>Second is that is a bit non-intuitive in that users will first see a "VNC
>Authentication" screen. The "Password" field is ignored, they just need
>to click on the "OK" button.
>The third issue is the real problem: doing *ANYTHING* to the browser will
>kill the session. Clicking on the "Back", "Forward", or "Reload" buttons,
>and in some cases resizing the browser, will immediately kill all programs
>the user was running and disconnect them. Yuck.
>If that does not scare you off, please give these packages a spin ;-)
>	ftp://k12linux.mesd.k12.or.us/pub/vnc-hack/
>After installing these on your server, point our web browser to:
>	http://yourserver/vnc/hires
>	http://yourserver/vnc/lowres
>where hires = 1024x768 and lowres = 800x600 screens.
>K12OSN mailing list
>K12OSN redhat com
>For more info see <http://www.k12os.org>

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