[K12OSN] VNC Reflector Not Working

Rita Gibson rgibson57 at earthlink.net
Fri Jan 21 13:45:10 UTC 2005


Yes come join us on IRC, I have been trying to get this to work and have 
been logging into #ltsp (thank you cliebow for helping). I would really 
like to get it to work, but take it one step further, I'd like it to 
work with TeacherTool. Hope to see you on the IRC guys. I probably won't 
be there today, I'm over-budget on my time, but will be in Monday.

BTW, I wonder if these instructions were written for an installation 
that used vnc running under xinetd?Could this have anything to do with 
it? At some point this week I (with much help) had it working somehow 
but I got a new instance of a desktop instead of connecting to the 
teacherdemo desktop. Cliebow said there was a howto that rjune wrote on 
vnc and xinetd. I went looking for that this morning. Didn't find that 
howto, but did find some stuff on both wiki's about vnc and xinetd. It 
seems to me that what vnc is designed to do under xinetd -- is to give 
each user from whatever type of system an ltsp desktop so they can use 
an application on the terminal server.

I am very confused. Maybe I shouldn't have tried to explain my state of 

Rita Gibson

cliebow at downeast.net wrote:

>why not pop into #ltsp on freenode.net. a couple of us been wrestling with
>it this week..cliebow
>>Hi there everyone!
>>I am having some difficulty getting VNC Reflector working on our Fedora
>>Core 2 LTSP installation. I have followed the steps from David (which are
>>updated by Robert), but still no success!
>>I successfully built the vncreflector file and moved it to another folder,
>>in this case /opt/vncreflector/
>>In this folder, I have created the PASSWD_FILE and placed the passwords in
>>there as follows:
>>I then created the startreflector script and chmod it to allow executable
>>access. The script runs fine. I inserted:
>>/opt/vncreflector/vncreflector -p PASSWD_FILE -i PID_FILE -l 5999
>>I then run the vncpasswd /usr/local/share/passwd command. I enter
>>"student" as the password.
>>I then ran: chmod 755 /usr/local/share/passwd
>>Success so far.
>>I start the server with no difficulty, the server starts with no errors in
>>the log. It states:
>>VNC Reflector 1.2.4.  Copyright (C) 2001-2003 HorizonLive.com, Inc.
>>HorizonLive provides e-Learning and collaborative synchronous presentation
>>solutions in a totally Web-based environment.  For more information about
>>HorizonLive, please see our website at http://www.horizonlive.com/
>>Starting in the background, see the log file for errors and other messages.
>>Here's where I experience problems:
>>When I run vncviewer localhost:99 and enter "teacheruser". The connection
>>drops with the following error:
>>Thu Jan 20 16:01:35 2005
>> CConn:       connected to host localhost port 5999
>> CConnection: Server supports RFB protocol version 3.3
>> CConnection: Using RFB protocol version 3.3
>>Thu Jan 20 16:01:38 2005
>> main:        End of stream
>>There is an "End of stream" message. I have verified that the password is
>>correct, as when I type in the wrong password, I clearly get an
>>authentication error message. 
>>I have verified that vncserver is running, because when I type in
>>vncviewer localhost:1 I get a connection to the login screen.
>>I can also verify that when I launch vncreflector, it connects to the VNC
>>session because of the following log entries:
>>20/01/05 15:59:57 + Starting VNC Reflector 1.2.4
>>20/01/05 15:59:57 - Switched to the background mode
>>20/01/05 15:59:57 * Using only 8 first bytes of a longer password
>>20/01/05 15:59:57 * Host password not specified, assuming no auth
>>20/01/05 15:59:57 + Connecting to localhost, port 5901
>>20/01/05 15:59:57 + Connection established
>>20/01/05 15:59:58 - Remote RFB Protocol version is 3.8
>>20/01/05 15:59:58 * Protocol sub-version does not match (ignoring)
>>20/01/05 15:59:58 + No authentication required at host side
>>20/01/05 15:59:58 + Remote desktop geometry is 800x600
>>20/01/05 15:59:58 - Remote desktop name: x11
>>20/01/05 15:59:58 + Activating new host connection
>>Just to see if there is a VNC connection issue with LTSP, I changed the
>>host file to point to a PC with VNC Server on it, and the results were
>>exactly the same.. confirming that it happens with all vnc servers I try
>>to connect to.
>>Maybe I'm missing something? Does anyone have any ideas?
>>Alan Owen
>>Hermon School District
>>Hermon, ME

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