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steve menard | 1 Mar 2008 17:48

Re: Dropped Connections

I  have observed that it does not really matter
sometimes a few characters will cause vnc down .. sometimes not;
sometimes large copies work fine

I have found that the clipboard issue is the primary disconnect cause I see

I observe VNC monitoring clipboard causes disconnects
when clipboard contents change ;
if I re-connect I can then use existing clipboard contents

have copied and pasted many items [text mainly]
I have not maintained log to correlate vnc disconnects

Steve

Trace Carpenter wrote:
> That's very interesting Steve.  What type of data?  I have found that 
> if VNC is up, and I go to another window to highlight, copy and paste 
> something, hitting the Ctrl+C will cause the connection to drop.
>
> --
> Trace Carpenter
> The Carpenter Group
> 445 E. FM1382, Ste. 3-373
> Cedar Hill, Texas 75104
> 972.617.7131 Main Line
> 972.617.9210 Private/Direct Line
> mail <at> tracecarpenter.com
> www.tracecarpenter.com
> www.carpenter-group.com
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Stewart Becker | 1 Mar 2008 20:03
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Re: java viewer ?

Beau,

If you want to show your "real" desktop on a Linux system via VNC, you
need to run x0vnc4server rather than vnc4server.  The vnc4server program
initiates a new X session, so you get an additional session to the one a
user sitting at the machine will see.  x0vnc4server shares the current X
session via VNC.  You can still use the same http/www/java connection,
as all this does is make a VNC viewer availiable via http.  When you get
the connection dialog from the java app, make sure you have :0 rather
than :1 , :2 ... at the end (or no :number).

HTH,

Stewart [NutmeG] Becker

On Fri, 2008-02-29 at 12:13 -0600, beau wrote:
> Hi Everyone
> I need some help
> here is the setup  Ubuntu Fiesty, Remote Desktop set with password. 
> vnc-java in /var/www,
> if i try to look at it using a web browsers i am not see my real desk 
> top how can i change this
> Beau
> _______________________________________________
> VNC-List mailing list
> VNC-List <at> realvnc.com
> To remove yourself from the list visit:
> http://www.realvnc.com/mailman/listinfo/vnc-list
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Brad | 2 Mar 2008 05:09
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numlock - allows Window Manager key sequences to 'pass through' to vncviewer?!

Hi.  VNC is working perfectly for me.  In particular I appreciate the means
by which I can 'nest' my fvwm2 Window Managers.  I typically scroll around
virtual desktops by using control-arrow key sequences.  If the numlock
key is ON then these sequences are ignored by the WM of my physical
desktop session and passed through to the session I have running in my
VNC viewer.  It's brilliant!  :-)

The mailing list archive has an entry from Mark Rainford posted back
in 2004; the URL in the archive is:

  http://www.realvnc.com/pipermail/vnc-list/2004-February/043069.html

He wrote:

> Sure, two sets of hot keys would be a dusty road to nowhere nice. I'm not
> sure if management of "nested" sessions has a decent solution. Ideally the
> first WM should be configured to "pass all" to the nested WM while
> vncviewer has the focus.
>
> One trick often mentioned is to push NumLock: then your hotkeys fly
> past the first WM and land on the nested WM. This is because (normally)
> your hotkey bindings do not include the NumLock modifier - so Atl+Tab
> looks like Alt+Tab+NumLock and is not noticed as "hot" by the immediate
> WM. By the time the key combination reaches clients of the nested Xvnc
> session, the NumLock has been stripped, so the nested WM acts on Alt+Tab.

I'm delighted by this feature, even though I think I found it by accident;
despite Mark's saying that the trick is 'often mentioned' I don't think it was
too easily found when I was looking.  Associated with that I'd like to know
why the numlock trick works ... is this something that was deliberately done
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beau | 2 Mar 2008 17:33
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Re: java viewer ?

hi Stewart,
I am doing that it not working with the java vewer
thanks for any help beau

Stewart Becker wrote:
> Beau,
>
> If you want to show your "real" desktop on a Linux system via VNC, you
> need to run x0vnc4server rather than vnc4server.  The vnc4server program
> initiates a new X session, so you get an additional session to the one a
> user sitting at the machine will see.  x0vnc4server shares the current X
> session via VNC.  You can still use the same http/www/java connection,
> as all this does is make a VNC viewer availiable via http.  When you get
> the connection dialog from the java app, make sure you have :0 rather
> than :1 , :2 ... at the end (or no :number).
>
> HTH,
>
> Stewart [NutmeG] Becker
>
>
> On Fri, 2008-02-29 at 12:13 -0600, beau wrote:
>   
>> Hi Everyone
>> I need some help
>> here is the setup  Ubuntu Fiesty, Remote Desktop set with password. 
>> vnc-java in /var/www,
>> if i try to look at it using a web browsers i am not see my real desk 
>> top how can i change this
>> Beau
(Continue reading)

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Roy Park | 2 Mar 2008 21:49

VNC Error

I am using VNC on a Windows 2003 Server.  I am trying to access it from a
Windows XP computer.  I was using a dns alias and was working fine for the
last 6 months.  However, I started recieving this error and have not been
able to access my server.

"unable to resolve host by name:  The requested name is valid and was found
in the database, but it does not have the correct associated data being
resolved for. (11004)"

I appreciate any help I can get.  Thank you.

Roy
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Stewart Becker | 3 Mar 2008 08:01
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Re: java viewer ?

"It's not working" is the world's most unhelpful (yet still the most
common) bug report.  Can you flesh out the details, please?  How far
along this path do you get:

Does x0vnc4viewer start successfully?
Can you connect via the vncviewer program?  If so, do you get your
"real" desktop?
What URL do you enter in your browser to get to the http/java viewer?
Can you successfully navigate to the http page and get the java viewer
connection dialog box?
Are you able to get a VNC session at all - albeit not the one you were
expecting?

Stewart

On Sun, 2008-03-02 at 10:33 -0600, beau wrote:
> hi Stewart,
> I am doing that it not working with the java vewer
> thanks for any help beau 
> 
> 
> Stewart Becker wrote: 
> > Beau,
> > 
> > If you want to show your "real" desktop on a Linux system via VNC, you
> > need to run x0vnc4server rather than vnc4server.  The vnc4server program
> > initiates a new X session, so you get an additional session to the one a
> > user sitting at the machine will see.  x0vnc4server shares the current X
> > session via VNC.  You can still use the same http/www/java connection,
> > as all this does is make a VNC viewer availiable via http.  When you get
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Corne Beerse | 3 Mar 2008 09:56
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Re: How to understand VNC executing sequence

Williams, Chris (Marlboro) wrote:
> That's not developer documentation. Do you not know what developer
> documentation is?
> I'm talking about everything from high level flow charts down to
> detailed annotated source code listings.
> Descriptions of functions, what they do and why. Files, modules, data
> types, etc. Style guides, APIs and library docs. Development history,
> authors and contacts.
> All presented to a new developer in a persistent, organized manner.
>   
Well, from my experience as a professional software developer (some 
years ago) I can tell you that the only documentation that is always 
accurate, up-to-date, complete, structured and 'readable', is the source 
code. All other documentation is either not-existing, outdated, 
incomplete or otherwise not that useful.

For what its worth and as far as I know (vnc 3.7 knowledge), the Xvnc 
server is a combination of an X11 server (Xfree or Xorg or such, I 
donnot know the current status) and a vnc display driver. For the X11 
part, expect only the required parts to be used. For the documentation 
on that part, see there.

For the vnc part of the implementation, I've sent some example code that 
puts up a counter or a clock in a vnc-session. That was part of the old 
vnc documentation, if someone is interested and it cannot be found on a 
webpage, I'm happy to send it.

> Something like this:
> http://developer.mozilla.org/en/docs/Code_snippets:Tabbed_browser
> Or this:
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Bob Aloisi | 3 Mar 2008 15:21

Problem connecting to locked server

I'm running the VNC viewer on a Windows XP machine and VNC Server Free
Edition 4.1.2 on a Vista Home Premium machine.  If the server is unlocked I
can connect but when it is locked, I get an authentication error.   How do I
resolve this problem?

Thank You,

_______________________________________

Bob Aloisi

Vice President, Operations

Wall Street Horizon, Inc.

781.994.3500 ext. 13

baloisi <at> WallStreetHorizon.com

www.WallStreetHorizon.com

 
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Williams, Chris (Marlboro | 3 Mar 2008 15:22
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Favicon

RE: How to understand VNC executing sequence

Corne, I'm interested in seeing that code you have, thanks.

Development documentation isn't meant to be accurate up to the latest
revision. That's almost impossible. It doesn't have to be the Holy Grail
of information for the project. But what it should provide is a good
starting point for new developers. Of course the source code is the best
place to get data on what the software is actually doing, but it's not
the best for brand new people who wish to contribute to a project.
I haven't been in this industry very long but so far most of the
software projects I've worked on were either sufficiently documented or
I had personal access to developers. There were meetings and
architectural descussions prior to me seeing one line of code.
The idea is not to make you an expert on every corner of the project,
but rather have you start making changes with a great deal more context.

-Chris

-----Original Message-----
From: Corne Beerse [mailto:cbeerse <at> gmail.com]
Sent: Monday, March 03, 2008 3:56 AM
To: Williams, Chris (Marlboro)
Cc: vnc-list <at> realvnc.com
Subject: Re: How to understand VNC executing sequence

Williams, Chris (Marlboro) wrote:
> That's not developer documentation. Do you not know what developer
> documentation is?
> I'm talking about everything from high level flow charts down to
> detailed annotated source code listings.
> Descriptions of functions, what they do and why. Files, modules, data
(Continue reading)

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Thomas Keller | 4 Mar 2008 14:13

Non-Persistant VNC sessions

Good Morning,
  I am currently using RHEL 5.1 and I am unable to set up non-persistent VNC
sessions.  This could be done in RHEL 3 and 4 previously.  Currently
the only way I can set up VNC sessions is by modifying the
/etc/sysconfig/vncservers file.  This is fine for the short term but we prefer
that users
log out at the end of a session; that users do not use persistent VNC sessions
since they will often leave orphaned processes.

  In RHEL 3 and 4, I would add entries to /etc/services corresponding to the
ports I wished to have open and then have the corresponding entries in
/etc/xinetd/xvncserver file, /etc/X11/gdm/gdm.conf file, /etc/X11/xdm/Xaccess
and xdm.conf file.  One of the issues I also see in RHEL 5 is that xdm does
not seem to exist anymore (and yes, I know gdm is now /etc/gdm).

  Any help on setting up non-persistant VNC sessions on RHEL 5.1 would be most
appreciated.

Thank you.

Tom
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Gmane