RE: Security Feature Suggestion: "Delete Password" on exit?

[James Weatherall]

Alex,

If the password is specified on the command line to the VNC Server, (albeit
in obfuscated hex format) then it won't be saved to the registry.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Alex K. Angelopoulos
> Sent: 25 August 2004 18:59
> To: RealVNC List
> Subject: Security Feature Suggestion: "Delete Password" on exit?
> 
> 
> I've been looking at VNC in remote assistance roles recently, 
> and it has 
> occurred to me that for that specific role, it might be 
> helpful if VNC could 
> be set to either delete the registry keys for passwords on 
> exit or to never 
> save the password at all.
> 
> I find myself taken with the idea, but I can also see how 
> this could be a 
> pain in the rear for a standard install even if done 
> carefully - if it's 
> possible to wade through the issues of multiple keys where 
> the password may 
> be specified, it could still be very confusing to people if 
> this "setting" 
> were configured and they weren't aware of it.
> 
> Any general reactions to the idea, though? 
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RE: Anonymous VNC

[James Weatherall]

This download omits any mention of the GPL.  Please read the GPL for details
of the requirements that ust be satisfied when redistributing GPL code.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Skarbet
> Sent: 25 August 2004 23:09
> To: [EMAIL PROTECTED]
> Subject: Anonymous VNC
> 
> 
> Hola,
> 
> Take advantage of WinVnc4 without the systry icon.
> 
> http://membres.lycos.fr/tgx874sah/download.php?id=2
> 
> 
> 
> 
>   
> 
>   
>   
> Vous manquez despace pour stocker vos mails ? 
> Yahoo! Mail vous offre GRATUITEMENT 100 Mo !
> Criez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/
> 
> Le nouveau Yahoo! Messenger est arrivi ! Dicouvrez toutes les 
> nouveautis pour dialoguer instantaniment avec vos amis. A 
> tilicharger gratuitement sur http://fr.messenger.yahoo.com
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RE: how to change configuration settings/parameters when running winvnc server version 4 from command line?

[James Weatherall]

Yuris,

For security, the Password parameter must be specified in the obfuscated hex
form.  The easiest way to do this is to use vncconfig to save a password to
the registry, then copy the hex form of that password on to your
command-line for -register.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Yuris
> Sent: 26 August 2004 10:07
> To: [EMAIL PROTECTED]
> Subject: how to change configuration settings/parameters when 
> running winvnc server version 4 from command line?
> 
> Hi,
> 
>  
> 
> I've been trying to change the configuration settings from 
> command line, but I never succeeded. Somehow, the information 
> given in the program usage was also not that clear as to how 
> to specify those parameters values.
> 
>  
> 
> In the program usage it was written: 
> 
> =
> 
>  
> 
> I tried to change password and other configuration settings 
> from command line and I used this command:
> 
>  
> 
> File_directory> winvnc4 -register DisableOptions=1 Password=test
> PortNumber=5902
> 
>  
> 
> After I pressed enter, the status said that the service was 
> register successfully. However, when I then invoked a 
> starting command as given below, I got an error message as 
> shown below:
> 
>  
> 
> Starting command:
> 
> File_directory> winvnc4 -start
> 
>  
> 
> Error message:
> 
>  
> 
> Main:unable to start the service. The service did not 
> respond to the
> start or control request in a timely fashion.
> 
>  
> 
>  
> 
> At later time, I tried to changed the password and other 
> parameter settings using this command (coz it was written 
> '=' in the program
> usage):
> 
> File_directory> winvnc4 =<1>
> 
>  
> 
> And I got the following error message:
> 
> "< was unexpected at this time"
> 
>  
> 
> Could anybody help or show me the way to change those 
> parameter settings from command line for vnc server version 4.0??
> 
>  
> 
> Thank you for your help.
> 
>  
> 
> Regards,
> 
> Yuris
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RE: DoS attack VNC 4.0

[James Weatherall]

Benedict et al,

Yes, there is a problem in the way that the current release of VNC Server 4
for Windows handles excessive connection attempts.  Note that the free VNC
release is not designed for use on untrusted networks - if you need to
access a free VNC Server across the Internet then you should use a system
such as SSH to "tunnel" the connections securely between sites.

The upcoming VNC Server Enterprise Edition (
http://www.realvnc.com/products/enterprise/ ) includes protection from this
and a class of similar but more advanced attacks.  This protection will also
be included in the next VNC Server 4 GPL release.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of B Kwok
> Sent: 25 August 2004 23:48
> To: [EMAIL PROTECTED]
> Subject: DoS attack VNC 4.0
> 
> Want to verify and confirm if this attack sucess by sending 
> more than 60 connections request to VNC server on windows 
> platforms, any fix for that?
> 
> 
> http://archives.neohapsis.com/archives/fulldisclosure/2004-08/
> 1068.html
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RE: End of stream

[James Weatherall]

Joe,

The most obvious cause of an EndOfStream is that the Hosts string is set to
only allow connections from 192.168.1.0 - connections from any other host
will be accepted but immediately dropped.

Are you sure that's the address of the host you're connecting from?

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Joe Henley
> Sent: 28 August 2004 17:48
> To: [EMAIL PROTECTED]
> Subject: End of stream
> 
> Several weeks ago there was a thread on this subject, but the 
> resolution wasn't posted.  I'm having the same problem and 
> could use the same help. 
>   I included a copy of the last note on it posted here.
> 
> I have run the tests suggested below, the results (hopefully 
> this won't be too long for this site.) are listed at the 
> end of the note.
> 
> Any help will be greatly appreciated.  I suspect I'm missing 
> something obvious; it ran fine when I had version 3.3.7 of 
> WinVNC running.  This problem cropped up when I installed 
> version 4.  I'm trying to access the
> Win98 server (WinVNC) on a local LAN from a Linus (RedHat 9) 
> client running vncviewer version 4.
> 
> Joe Henley
> 
> Last note on the site:  Jim Weatherall from RealVNC posted
> ------
> 
> End of stream 4.0b5 (2)
> James Weatherall jnw "at" realvnc.com
> Wed Aug 18 17:11:01 2004
> 
> Try running the server on the command-line, in User-Mode, 
> with the parameter -log=*:stderr:100 - this will cause lots 
> of debug printout that may help indicate the problem.
> 
> Wez @ RealVNC Ltd.
> 
> 
>  > -Original Message-
>  > From: Michel Bouckaert [mailto:Michel_Bouckaert "at" 
> gap.com]  > Sent: 17 August 2004 23:38  > To: James 
> Weatherall  > Subject: RE: End of stream 4.0b5 (2)  >  > James:
>  >
>  > Quickly downloaded 4.0, started it in user mode, and tried 
>  > from 3.3.6 Solaris client - same symptoms.
>  > I get EOS as soon as the communication is established: One 
>  > message stating CConn... connected to host ..., 
> immediately  > followed by end-of-stream  >  > Client Solaris 
> VNC Viewer 3.3.6  > Server Windows2000 VNC Server 4.0  >  > 
> Cheers  > -Original Message-  > From: James 
> Weatherall [mailto:jnw "at" realvnc.com]  > Sent: Tuesday, 
> August 17, 2004 3:19 PM  > To: Michel Bouckaert; vnc-list 
> "at" realvnc.com  > Subject: RE: End of stream 4.0b5  >  >  > 
> Michel,  >  > Have you tried the full VNC 4.0 release?
>  >
>  > Wez @ RealVNC Ltd.
>  >
>  >
>  > > -Original Message-
>  > > From: vnc-list-admin "at" realvnc.com  > > 
> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Michel 
> Bouckaert  > > Sent: 17 August 2004 22:07  > > To: vnc-list 
> "at" realvnc.com  > > Subject: End of stream 4.0b5  > >  > >  
> > > I am running vncServer on 4.0b5 on a MS Windows 2000 
> machine (with  > > SP4), 2GHz.
>  > > When connecting from a Linux or Solaris client (using 
> 3.3.6,  > > 3.3.7 or 4.0 clients) I get  > > 
> "ReadFromRFBServer: rdr::EndOfStream" or "main: End of stream"
>  > > as soon as I pass the authentication point.
>  > >
>  > > I have not been able to work around that issue... :-( 
> Any help  > > appreciated.
> --
> -
> 
> The results of the test .
> -
> VNC Server 4.0 - VNC Server for Win32, Version 4.0 Built on 
> Jun 15 2004 at 14:29:41 Copyright ) RealVNC Ltd. 2002-2004
>   Fri Aug 27 20:44:07 2004
>   Config:  set immutable Log
>   VNCServerST: creating single-threaded server THEODORE <- name 
> of Win98  
>  server
> Starting User-Mode VNC Server.
>   Threading:   created  Native(bd0750)
>   Registry:duplicated 8001 to c1d3b000
>   RegConfig:   unable to process dummy
>   Config:  set Password(Binary) to   <-- blanked
>   Config:  set SecurityTypes(String) to VncAuth
>   Config:  set ReverseSecurityTypes(String) to None
>   Config:  set QueryConnect(Bool) to 0(0)
>   Config:  set PortNumber(Int) to 5900
>   Config:  set LocalHost(Bool) to 0(0)
>   Config:  set IdleTimeout(Int) to 20
>   Config:  set HTTPPortNumber(I

RE: PestPatrol & RealVNC

[James Weatherall]

Srinivasan,

Various virus-killer programs flag VNC Server as a potential threat, simply
because it allows remote access to a machine.  Unfortunately, virus-killers
don't typically have enough intelligence to discern a "safe" VNC
installation from an open one (e.g. one requiring no password), so they just
flag it up as a warning to be on the safe side.  (Some other software
deliberately flags various "potential threats" purely so that the authors
can bolster the number of "threats" they claim to detect, of course...)

Assuming that VNC was installed by the computer's administrator
deliberately, you should be able to safely ignore the PestPatrol warning.

Wez @ RealVNC Ltd.
  

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Srinivasan S
> Sent: 29 August 2004 03:57
> To: [EMAIL PROTECTED]
> Subject: PestPatrol & RealVNC
> 
> Hi 
> 
> I have been using RealVNC for quite some time now.  Recently 
> to get rid of some adware on my system I tried PestPatrol and 
> was surprised to find RealVNC being flagged as a pest.
> 
> Any thoughts on this ?  Is it really a
> problem ?
> 
> Regards
> Srinivasan
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RE: Cut/paste and mouse scrolling

[James Weatherall]

Michael,

VNC Viewer 4.0 supports the scroll wheel, provided that the VNC Server you
are connecting to supports it correctly.  Which version of VNC Server are
you running on the Linux machine?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Michael Rayle
> Sent: 31 August 2004 15:21
> To: [EMAIL PROTECTED]
> Subject: Cut/paste and mouse scrolling
> 
> All,
> 
>  
> 
> I have a serious beef right now with VNC.  
> 
>  
> 
> I am using VNC to connect a Win-XP client to a Linux server 
> (FVWM on X).
> 
>  
> 
> If I want to use the scroll-wheel, I have to run "Tight VNC" viewer.  
> 
> If I want to use the mouse buffer to cut/paste between 
> Windows and Linux, I have to run "RealVNC" viewer.
> 
>  
> 
> Does anyone know how to make cut/paste work in Tight VNC?
> 
> Or how to make scroll events work in RealVNC?
> 
>  
> 
> Thanks!
> 
> Mike
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RE: No cursor shown with VNC/UltraVNC1.00R18 combination

[James Weatherall]

David,

It sounds as though their server isn't handling locally-rendered cursors
properly.

To check what the viewer is seeing, you can try running your vncviewer with
the command-line:

vncviewer -console -log=*:stderr:100 

to see whether it prints any messages regarding the cursor.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of David Balazic
> Sent: 31 August 2004 14:23
> To: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]'
> Subject: No cursor shown with VNC/UltraVNC1.00R18 combination
> 
> Hi!
> 
> I have UltraVNC 1.00 RC18 on Windows NT 4.0 Server SP6 as "server".
> Client is VNC 4.0 on Win2000Pro-SP4.
> 
> There is no cursor visible, when I connect to the remote 
> desktop, except for that little square.
> If I use VNC3.3.7 as client, there is no proble. If I use 
> UltraVNC 1.00RC18 as client,then again there is no problem ( 
> regadless of the viewers "Mouse Cursor" option, both "Track 
> remote cursor locally" and "Let remote server deal with mouse cursor"
> work ).
> 
> I also see , that if in VNCViewer 4.0 the option "Misc/Render 
> cursor locally" is turned OFF, then the cursor is visible. If 
> it it ON ( which is the default ), then the cursor is NOT visible.
> 
> I did not have this problem before, when the server was 
> runing VNCserver 3.3.7.
> I also do not have this problem with another server system ( 
> also running WinVNC 3.3.7 )
> 
> Regards,
> David
> --
> --
> ---
> http://noepatents.org/   Innovation, not litigation !
> ---
> David Balazic  mailto:[EMAIL PROTECTED]
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> Zagrebska cesta 104Phone: +386 2 450 8851 
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RE: Curious input problem when using VNC 4.0 Viewer

[James Weatherall]

Michael,

What happens if you press and then release the Control key from within an
active session to the problem server?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Michael Chadwick
> Sent: 30 August 2004 19:55
> To: [EMAIL PROTECTED]
> Subject: Curious input problem when using VNC 4.0 Viewer
> 
> This concerns VNC 4.0 Final, on a Windows 2000 network 
> (client and server):
> 
> When I use VNC viewer to connect to a remote user, a problem 
> occurs sporadically.
> 
> First, the mouse buttons seem to get mixed up and when I 
> double-click something (like, say, My Computer) it acts as if 
> I right-clicked on it and chose Properties.  The Ctrl key on 
> the keyboard is also seemingly pressed down in the computer's 
> mind because if I left-click on something and then another, 
> they both get highlighted, and so on.  Right-clicking on 
> things seems to work, and that is how I have to open things.  
> This only seems to happen on icons, as left-clicking on the 
> Start Menu works as intended.
> 
> Second, the keyboard stops functioning.  And this continues 
> even if I stop viewing the remote user.  Also, the user at 
> the local computer loses keyboard functioning, as well.
> 
> One time this happened on a server and I just kept trying to 
> type and the problem went away after about 15-20 minutes of 
> frustrating experimentation.  With all subsequent occurrences 
> on users' workstations I just have them reboot and it fixes it.
> 
> Anyone else have this problem or (better yet) know of a fix?
> 
> - Michael
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RE: dynamic desktop resizing

[James Weatherall]

Henning,

Dynamic desktop resizing is where the viewer will resize if the server's
display is resized, without requiring you to reconnect.  Scaling is a
separate feature.

Wez @ RealVNC Ltd.


> Hi all,
> 
> I am new to the list.
> 
> The VNC Viewer Version 4.0 has a feature called dynamic 
> desktop resizing. I
> think it is an equivalent to the scaling feature of former versions.
> I switched on the feature before I connected to the server 
> but I can't get
> it to work.
> 
> Does anybody know how I get this feature to work?
> 
> I am using a Win2003 Server Standard Edition and Win2k Client.
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RE: DoS attack VNC 4.0

[James Weatherall]

Mike,

The DoS attack only affects VNC Server for Windows - you shouldn't therefore
lose data as a consequence of an attack.

There is no need to set up a firewall, only to use the LocalHost option to
restrict connections to those originating from the local machine.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Mike Miller
> Sent: 31 August 2004 16:10
> To: William Hooper
> Cc: VNC List
> Subject: Re: DoS attack VNC 4.0
> 
> 
> On Tue, 31 Aug 2004, William Hooper wrote:
> 
> > Mike Miller said:
> > [snip]
> >> I'm not understanding this.  Take Linux for example - 
> suppose I use SSH
> >> port forwarding, but VNC is still there on port 5901.
> >
> > Port 5901 is firewalled off from everything but localhost.  
> The only way 
> > to cause the issue then is to be a local user.
> 
> I see.  That makes sense.  Of course this means that in addition to 
> setting up SSH on both ends, you have to set up a firewall.  
> I guess that 
> isn't hard for experts, but it's tricky for your average Joe. 
>  So most 
> people are going to take the insecure route, which may be bad 
> for VNC's 
> word-of-mouth advertising.  It will be better, of course, to 
> work SSH into 
> the VNC product and fix the DoS vulnerability.
> 
> 
> > Of course, since you have an SSH session, restarting the VNC server 
> > isn't that big of a deal...
> 
> You can lose data.
> 
> Mike
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RE: Curious input problem when using VNC 4.0 Viewer

[James Weatherall]

Does pressing and releasing the Alt key help at all?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Michael Chadwick
> Sent: 31 August 2004 17:13
> To: James Weatherall; [EMAIL PROTECTED]
> Subject: RE: Curious input problem when using VNC 4.0 Viewer
> 
> 
> This does nothing and the problem persists.  The mouse 
> buttons continue
> to be stuck with their mixed-up functionality.
> 
> -----Original Message-
> From: James Weatherall [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, August 31, 2004 9:01 AM
> To: Michael Chadwick; [EMAIL PROTECTED]
> Subject: RE: Curious input problem when using VNC 4.0 Viewer
> 
> 
> Michael,
> 
> What happens if you press and then release the Control key from within
> an
> active session to the problem server?
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTECTED] On Behalf Of Michael Chadwick
> > Sent: 30 August 2004 19:55
> > To: [EMAIL PROTECTED]
> > Subject: Curious input problem when using VNC 4.0 Viewer
> > 
> > This concerns VNC 4.0 Final, on a Windows 2000 network 
> > (client and server):
> > 
> > When I use VNC viewer to connect to a remote user, a problem 
> > occurs sporadically.
> > 
> > First, the mouse buttons seem to get mixed up and when I 
> > double-click something (like, say, My Computer) it acts as if 
> > I right-clicked on it and chose Properties.  The Ctrl key on 
> > the keyboard is also seemingly pressed down in the computer's 
> > mind because if I left-click on something and then another, 
> > they both get highlighted, and so on.  Right-clicking on 
> > things seems to work, and that is how I have to open things.  
> > This only seems to happen on icons, as left-clicking on the 
> > Start Menu works as intended.
> > 
> > Second, the keyboard stops functioning.  And this continues 
> > even if I stop viewing the remote user.  Also, the user at 
> > the local computer loses keyboard functioning, as well.
> > 
> > One time this happened on a server and I just kept trying to 
> > type and the problem went away after about 15-20 minutes of 
> > frustrating experimentation.  With all subsequent occurrences 
> > on users' workstations I just have them reboot and it fixes it.
> > 
> > Anyone else have this problem or (better yet) know of a fix?
> > 
> > - Michael
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RE: No cursor shown with VNC/UltraVNC1.00R18 combination

[James Weatherall]

David,

It's normal to see that message immediately after a pixel format change.  If
you see it anywhere else, then it indicates that the viewer was sent an
empty cursor by the server.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: David Balazic [mailto:[EMAIL PROTECTED] 
> Sent: 01 September 2004 13:55
> To: 'David Balazic'; [EMAIL PROTECTED]; 
> [EMAIL PROTECTED]; 'James Weatherall'
> Subject: RE: No cursor shown with VNC/UltraVNC1.00R18 combination
> 
> It prints this twice :
> 
>  CView:   attempting to render invalid local cursor
> 
> Here is the complete output :
> VNC Viewer 4.0 - VNC Viewer for Win32, Version 4.0 Built on 
> Jun 15 2004 at 14:29:29 Copyright ? RealVNC Ltd. 2002-2004
> 
>  Registry:duplicated 8001 to 8001
>  RegConfig:   unable to process dummy
>  Threading:   created  RegConfig(844760)
>  Registry:duplicated 50 to 58
>  Threading:   started  RegConfig(844760)
>  Registry:duplicated 8001 to 8001
>  MsgWindow:   creating window "CViewManager"
>  RegConfig:   RegReaderThread started
>  RegConfig:   waiting for changes
>  MsgWindow:   null _this in 2f040e, message 24
>  MsgWindow:   null _this in 2f040e, message 81
>  MsgWindow:   null _this in 2f040e, message 83
>  MsgWindow:   created window "CViewManager" (2f040e)
>  Threading:   created  Native(8447f0)
>  Threading:   created  CView(844878)
>  Threading:   started  CView(844878)
>  MsgWindow:   creating window "Clipboard"
>  MsgWindow:   null _this in 2e0498, message 24
>  MsgWindow:   null _this in 2e0498, message 81
>  MsgWindow:   null _this in 2e0498, message 83
>  MsgWindow:   created window "Clipboard" (2e0498)
>  Clipboard:   local clipboard changed by b03ac
>  Clipboard:   no clipboard notifier registered
>  Clipboard:   registered clipboard handler
>  CView:   null _this in 580448, message 36
>  CView:   null _this in 580448, message 129
>  CView:   null _this in 580448, message 131
>  CView:   created window "VNC Viewer 4.0b" (580448)
>  Threading:   created  ConnectingDialog(a4fecc)
>  Threading:   started  ConnectingDialog(a4fecc)
>  Threading:   joining  ConnectingDialog(a4fecc)
>  Threading:   stopped  ConnectingDialog(a4fecc)
>  Threading:   checking ConnectingDialog(a4fecc)
>  Threading:   joined   ConnectingDialog(a4fecc)
>  Threading:   destroying   ConnectingDialog(a4fecc)
>  Threading:   already joined   ConnectingDialog(a4fecc)
>  Threading:   destroyedConnectingDialog(a4fecc)
> keycode=1
> selected 1
>  RegConfig:   unable to process dummy
>  RegConfig:   waiting for changes
>  CConnection: reading protocol version
>  CConnection: Server supports RFB protocol version 3.6
>  CConnection: Using RFB protocol version 3.3
>  CConnection: processing security types message
>  CConnection: processing security message
>  Dialog:  string[1005]=
>  Dialog:  enable[1005]=0
> 
> Wed Sep 01 14:52:02 2004
>  CConnection: processing security result message
>  CConnection: processing security result message
>  CConnection: Authentication success!
>  Clipboard:   change clipboard chain (220134, 0)
> 
> Wed Sep 01 14:52:03 2004
>  CConnection: reading server initialisation
>  CView:   setDesktopSize 1024x768
>  DIBSection:  one of area or format not set
>  MonitorInfo: moveToMonitor
>  MonitorInfo: monitor=10001
>  MonitorInfo: monitor is 0,0-1024,768
>  MonitorInfo: work area is 0,0-1024,768
>  MonitorInfo: device is "\\.\DISPLAY1"
>  CView:   setName opticus ( 10.49.2.22 )
>  CConnection: initialisation done
>  CView:   getNativePF()
>  DeviceContext: BitFields format: 32, (ff, ff00, ff)
>  CView:   requesting initial update
>  DIBSection:  area=786432, bpp=8
>  DIBSection:  recreateBuffer()
>  DIBSection:  refreshing palette
>  DIBSection:  creating 6-bit TrueColour palette
>  DIBSection:  refreshing palette
>  CView:   Using pixel format depth 8 (8bpp) rgb max 3,3,3 
> shift 4,2,0
>  CView:   getNativePF()
>  DeviceContext: BitFields format: 32, (ff, ff00, ff)
>  CView:   Using ZRLE encoding
>  CView:   attempting to render invalid local cursor
>  CView:   Throughput 20270 kbit/s - changing to hextile encoding
>  CView:   Throughput 20270 kbit/s - changing to full colour
>  DIBSection:  area=786432, bpp=16
>  DIBSection:  recreateBuffer()
>  DIBSection:  preserving bitmap contents
>  CView:   Using pixel format depth 16 (16bpp) little-endian rgb565
>  CView:   getNativePF()
>  DeviceContext: BitFields format: 32

RE: No cursor shown with VNC/UltraVNC1.00R18 combination

[James Weatherall]

VNC 3.3.7 didn't support local cursor rendering at all, in either the viewer
or the server.  So connecting VNC 3.3.7 viewer to VNC 4 server and vice
versa are equivalent in that respect.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: David Balazic [mailto:[EMAIL PROTECTED] 
> Sent: 01 September 2004 14:06
> To: 'David Balazic'; [EMAIL PROTECTED]; 
> [EMAIL PROTECTED]; 'James Weatherall'
> Subject: RE: No cursor shown with VNC/UltraVNC1.00R18 combination
> 
> I don't see it anywhere else. But if I connect to another 
> server ( 3.3.7, has no cursor problems ), then I don't see 
> the cursor message in the logs at all, not even after a format change.
> 
> > --
> > From:   James Weatherall[SMTP:[EMAIL PROTECTED]
> > Sent:   1. september 2004 15:02
> > To: 'David Balazic'; [EMAIL PROTECTED];
> > [EMAIL PROTECTED]
> > Subject:RE: No cursor shown with VNC/UltraVNC1.00R18 combination
> > 
> > David,
> > 
> > It's normal to see that message immediately after a pixel 
> format change.
> > If
> > you see it anywhere else, then it indicates that the viewer 
> was sent 
> > an empty cursor by the server.
> > 
> > Wez @ RealVNC Ltd.
> >  
> > 
> > > -----Original Message-
> > > From: David Balazic [mailto:[EMAIL PROTECTED]
> > > Sent: 01 September 2004 13:55
> > > To: 'David Balazic'; [EMAIL PROTECTED];
> > > [EMAIL PROTECTED]; 'James Weatherall'
> > > Subject: RE: No cursor shown with VNC/UltraVNC1.00R18 combination
> > > 
> > > It prints this twice :
> > > 
> > >  CView:   attempting to render invalid local cursor
> > > 
> > > Here is the complete output :
> > > VNC Viewer 4.0 - VNC Viewer for Win32, Version 4.0 Built 
> on Jun 15 
> > > 2004 at 14:29:29 Copyright ? RealVNC Ltd. 2002-2004
> > > 
> > >  Registry:duplicated 8001 to 8001
> > >  RegConfig:   unable to process dummy
> > >  Threading:   created  RegConfig(844760)
> > >  Registry:duplicated 50 to 58
> > >  Threading:   started  RegConfig(844760)
> > >  Registry:duplicated 8001 to 8001
> > >  MsgWindow:   creating window "CViewManager"
> > >  RegConfig:   RegReaderThread started
> > >  RegConfig:   waiting for changes
> > >  MsgWindow:   null _this in 2f040e, message 24
> > >  MsgWindow:   null _this in 2f040e, message 81
> > >  MsgWindow:   null _this in 2f040e, message 83
> > >  MsgWindow:   created window "CViewManager" (2f040e)
> > >  Threading:   created  Native(8447f0)
> > >  Threading:   created  CView(844878)
> > >  Threading:   started  CView(844878)
> > >  MsgWindow:   creating window "Clipboard"
> > >  MsgWindow:   null _this in 2e0498, message 24
> > >  MsgWindow:   null _this in 2e0498, message 81
> > >  MsgWindow:   null _this in 2e0498, message 83
> > >  MsgWindow:   created window "Clipboard" (2e0498)
> > >  Clipboard:   local clipboard changed by b03ac
> > >  Clipboard:   no clipboard notifier registered
> > >  Clipboard:   registered clipboard handler
> > >  CView:   null _this in 580448, message 36
> > >  CView:   null _this in 580448, message 129
> > >  CView:   null _this in 580448, message 131
> > >  CView:   created window "VNC Viewer 4.0b" (580448)
> > >  Threading:   created  ConnectingDialog(a4fecc)
> > >  Threading:   started  ConnectingDialog(a4fecc)
> > >  Threading:   joining  ConnectingDialog(a4fecc)
> > >  Threading:   stopped  ConnectingDialog(a4fecc)
> > >  Threading:   checking ConnectingDialog(a4fecc)
> > >  Threading:   joined   ConnectingDialog(a4fecc)
> > >  Threading:   destroying   ConnectingDialog(a4fecc)
> > >  Threading:   already joined   ConnectingDialog(a4fecc)
> > >  Threading:   destroyedConnectingDialog(a4fecc)
> > > keycode=1
> > > selected 1
> > >  RegConfig:   unable to process dummy
> > >  RegConfig:   waiting for changes
> > >  CConnection: reading protocol version
> > >  CConnection: Server supports RFB protocol version 3.6
> > >  CConnection: Using RFB protocol version 3.3
> > >  CConnection: processing security types message
> > >  CConnection: processing security message
> > >  Dialog:  stri

RE: Mouse Pointer at server end

[James Weatherall]

Mark,

The next release will address this.  It's an artefact of the way in which
VNC Server 4 ensures that it captures alpha-blended windows and some other
special effects.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Mark Willis
> Sent: 03 September 2004 12:27
> To: [EMAIL PROTECTED]
> Subject: Mouse Pointer at server end
> 
> Yep I tried looking through the archives (they are massive) 
> and gave up so sorry if asked before...
> 
> Quick question:
> 
> Anyone know when a VNC session is started (winXP VNC viewer 
> to WinXP VNC listener), how to stop the irritating behaviour 
> that the mouse pointer at the server end pulses continously 
> on the screen (kind-of flickers).  
> Seems to do it for everyone else I have spoken to regardless of 
> configuration.   Not a big problem I admit but my collegues hate it!  
> 
> Many thanks
> 
> M.
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RE: Can't get rid of "RFB 003.008 " message

[James Weatherall]

Robert,

You are directing your browser to connect to the VNC port, not the HTTP/Java
Viewer) port.

Please see the docs for more details.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> [EMAIL PROTECTED]
> Sent: 03 September 2004 12:15
> To: [EMAIL PROTECTED]
> Subject: Can't get rid of "RFB 003.008 " message
> 
> Okay, The very fist two computers I installed RealVNC on it 
> worked perfectly.  For both the LAN connection and via 
> Internet connection.  I installed the first computer using 
> all the default settings and ports 5900 and 5800.  For the 
> second computer I used 5902 and 5802 and it worked.  I could 
> connect to each one using the viewer and I could connect to 
> them from a link page I had posted on my website.
>  
> I called a a coworker of mine and asked him to try and 
> connect to one of my computers.  He couldn't because a this 
> range of ports is being blocked.  So we thought to change the 
> port numbers to something else that was maybe in a range that 
> wasn't blocked.  I changed the numbers to 9001 and 8001.  My 
> coworker tried again with no luck. 
>  
> Now the trouble begins.  And yes, I had reconfigured port 
> forwarding in my router and the webpage links, to the new 
> port numbers.  Anyways,  I tried to connect and I now I get 
> "RFB 003.008".  I've uninstalled and re-installed RealVNC 
> with the same results.  I've upgraded to Java runtime 1.4.2.  
> For the RealVNC uninstall I personally went through the 
> registery and removed anything that had to do with RealVNC in 
> case there was a setting not being removed.
>  
> Now here's the real pain in the ares part.  I installed 
> RealVNC on a different computer that is not part of my work 
> or home networks.  When I try to connect to it from home I 
> get the now infamous "RFB 003.008".
>  
>  
> Any ideas on how I can RealVNC working again?
>  
> Thanks
>  
> Robert
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RE: Serious bug with X forwarding?

[James Weatherall]

Daniel,

You state that you are disconnecting either by kill -9'ing the vncviewer
(which is overkill and not necessary in all but extreme cases) or by using
Exit from the F8 menu.

Are you sure that the user is not actually disconnecting by selecting Logout
from their window manager on the server?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Daniel Hornung
> Sent: 03 September 2004 11:53
> To: [EMAIL PROTECTED]
> Subject: Serious bug with X forwarding?
> 
> Since I've not heard anything about this since last month, 
> I'll just post it again to see if anyone can confirm this problem.
> Or if someone could tell me where to post an 'official' bug 
> report? This is a quite annoying problem, preventing us from 
> using vnc (which generally is a great program) as often as 
> we'd like to. ;-/
> 
> If it helps, I could of course also post our XF86config and the logs.
> 
> Thanks in advance,
> Daniel
> 
> > Hello all,
> > I'm not quite sure if this is a bug or a feature:
> >
> > We are using the current version of RealVNC (4.0.1, rpm) as an XF86 
> > extension to forward the current display (usually :0) to a 
> number of 
> > clients. The configuration of the XF86Config doesn't seem to be a 
> > problem, the module and options (such as the password file 
> and whether 
> > to accept shared connections (always)) are fully recognized 
> according 
> > to the logs and any number of clients (both Windows and 
> Linux, RealVNC 
> > 3.3.7 and
> > 4.0.1) can connect at the same time and share the desktop.
> >
> > The problem arises when the Linux clients disconnect, there's no 
> > problem with the Windows clients. The disconnecting of the first 
> > client works fine, but when the second client disconnects, the 
> > VNC-server seems to restart, and the whole X System with it -> 
> > Windowmanager is halted -> X (with VNC) restarts -> 
> Windowmanager restarts.
> >
> > Procedure to reproduce:
> > 1) Start VNC-Server (RealVNC 4.0.1) as X module (see 
> > http://www.realvnc.com/v4/x0.html ) for further instructions
> > 2) Connect from another linux-machine with any version of 
> the RealVNC 
> > vncviewer to the server
> > 3) Shut down the vncviewer (with kill -9 or F8 -> Exit viewer)
> > 4) Repeat steps 2) and 3)
> > 5) X server on the first machine will restart
> >
> > Either we've missed something obvious (in which case we'd be happy 
> > about your advice) or the server is buggy (which we'd like to have 
> > confirmed), so please just try it out and tell about your 
> experiences.
> >
> > Thanks, Daniel Hornung
> >
> > University of Goettingen
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RE: Mac OS-X to VNC

[James Weatherall]

John,

Are you connecting by name or IP address?

If connecting by name, bear in mind that Windows machines will use NetBIOS
name resolution for names that aren't found in DNS, so they may know each
other's names even though your Mac doesn't...

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of John Ritter
> Sent: 03 September 2004 15:04
> To: 'Charles Brown'; 'Simon Hobson'
> Cc: [EMAIL PROTECTED]
> Subject: RE: Mac OS-X to VNC
> 
> Well, whatever it is called, Chicken of the VNC I guess it 
> is, came off of the resource page. Neither it nor the Java 
> can find the server even though Windows machines find it 
> without a problem.
> 
> John 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Charles Brown
> > Sent: Friday, September 03, 2004 9:28 AM
> > To: 'Simon Hobson'
> > Cc: [EMAIL PROTECTED]
> > Subject: RE: Mac OS-X to VNC
> > 
> > Yeah, but is it chicken or fish??
> > 
> > -Original Message-
> > From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED]
> > Behalf Of Simon Hobson
> > Sent: Friday, September 03, 2004 8:36 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Mac OS-X to VNC
> > 
> > 
> > John Ritter wrote:
> > 
> > >We have tried connecting by both VNC of the Sea and Java. 
> > Both get the
> > >same error.
> > 
> > Have you tried "Chicken of the VNC", I find it works pretty well.
> > 
> > Simon
> > 
> > --
> > 
> > NOTE: This is a throw-away email address which will reach me for as 
> > long as it stays spam-free, remove date for real address.
> > 
> > Simon Hobson MA MIEE, Technology Specialist Colony Gift Corporation 
> > Limited Lindal in Furness, Ulverston, Cumbria,
> > LA12 0LD Tel 01229 461100, Fax 01229 461101
> > 
> > Registered in England No. 1499611
> > Regd. Office : 100 New Bridge Street, London, EC4V 6JA.
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
> ___
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RE: Mac OS-X to VNC

[James Weatherall]

> I seem to recall I had some 
> problems connecting to Windoze machines, and turning off ZRLE 
> encoding in the default profile cured it.

Doesn't sound like something you'd have seen with VNC 4.

Wez @ RealVNC Ltd.
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RE: Mac OS-X to VNC

[James Weatherall]

Simon,

VNC 4 and VNC 3 are protocol-compatible - their viewers and servers can be
used interchangeably if required.  All that you'll see is that certain
features (such as local cursor rendering) aren't available unless both sides
support them, obviously.

What is the problem you are seeing with the "piece of kit" & CotVNC / Java
Viewer?  Is the kit supplying a Java viewer of its own or are you getting
one from somewhere else?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Simon Hobson
> Sent: 06 September 2004 09:38
> To: [EMAIL PROTECTED]
> Subject: RE: Mac OS-X to VNC
> 
> At 4:02 pm +0100 3/9/04, James Weatherall wrote:
> >  > I seem to recall I had some
> >>  problems connecting to Windoze machines, and turning off ZRLE  
> >> encoding in the default profile cured it.
> >
> >Doesn't sound like something you'd have seen with VNC 4.
> 
> Client or Server ?
> 
> IIRC, when we set this up, VNC 4 was either not out, or was so 'new' 
> that we decided to stick with 3 on the PCs - we'll probably 
> roll out an upgrade when time permits, but for the moment we 
> want all the PCs on the same version.
> 
> As far as the Mac goes, I'm not aware of any VNC4 capable 
> viewers - do you know different ? This is suddenly a bit of a 
> headache as we now have a piece of kit that I can't talk to 
> with either Chicken of the VNC or the Java Viewer.
> 
> Simon
> 
> -- 
> 
> NOTE: This is a throw-away email address which will reach me 
> for as long as it stays spam-free, remove date for real address.
> 
> Simon Hobson MA MIEE, Technology Specialist Colony Gift 
> Corporation Limited Lindal in Furness, Ulverston, Cumbria, 
> LA12 0LD Tel 01229 461100, Fax 01229 461101
> 
> Registered in England No. 1499611
> Regd. Office : 100 New Bridge Street, London, EC4V 6JA.
> ___
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RE: Mac OS-X to VNC

[James Weatherall]

Simon,

Full security, including username/password based authentication, is
currently available only in the AdderLink IP Viewer.  This support will be
more generally available with the release of VNC Enterprise Edition (see
http://www.realvnc.com/products/enterprise for further information).

The most likely cause for CotVNC seeing the connection close unexpectedly is
that CotVNC doesn't support the secure session protocol used by the
AdderLink IP, and that the AdderLink IP is set to have Encryption Always On.
If you set Encryption Prefer On then you should find that CotVNC can
connect, albeit without encryption.
If that doesn't help then select Force Protocol 3.3 from the Advanced
Properties page, which will make the AdderLink IP more compatible with old &
poorly behaved viewers.

The Java Viewer supplied with WinVNC 3.3.7 is older than the one supplied
with the AdderLink IP - it's possible that there is a legacy compatibility
issue there between the new viewer and Safari's VM.  Do you get any output
from the Java console when running the AdderLink IP Java Viewer?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Simon Hobson
> Sent: 06 September 2004 11:34
> To: [EMAIL PROTECTED]
> Subject: RE: Mac OS-X to VNC
> 
> James Weatherall wrote:
> 
> >VNC 4 and VNC 3 are protocol-compatible - their viewers and 
> servers can 
> >be used interchangeably if required.  All that you'll see is that 
> >certain features (such as local cursor rendering) aren't available 
> >unless both sides support them, obviously.
> 
> The username/password capability in V4 would be useful to us 
> - do you know if anyone is working on V4 support on OS X ?
> 
> >What is the problem you are seeing with the "piece of kit" & 
> CotVNC / 
> >Java Viewer?  Is the kit supplying a Java viewer of its own 
> or are you 
> >getting one from somewhere else?
> 
> The piece of kit is AdderLink IP from Adder Technology.
> 
> Connecting with CotVNC I give the address and password, click 
> on connect, then absolutely nothing happens - then about 3-4 
> minutes later CotVNC pops up the "closed connection" dialog* 
> (the same one used if an active connection is closed).
> 
> If I connect with the built in Java viewer (VNC Viewer for 
> Java version 4.0b6s, using Safari v1.2.3 on Mac OS X 10.3.5), 
>  then I get video, but now keyboard or mouse control.
> 
> In both cases, I can connect and control my PC running WinVNC 3.3.7.
> 
> *The actual dialog is "Terminate Connection. The server 
> closed the connection" with buttons for Reconnect and OK.
> 
> Simon
> 
> -- 
> 
> NOTE: This is a throw-away email address which will reach me 
> for as long as it stays spam-free, remove date for real address.
> 
> Simon Hobson MA MIEE, Technology Specialist Colony Gift 
> Corporation Limited Lindal in Furness, Ulverston, Cumbria, 
> LA12 0LD Tel 01229 461100, Fax 01229 461101
> 
> Registered in England No. 1499611
> Regd. Office : 100 New Bridge Street, London, EC4V 6JA.
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RE: VNC V4 - VIEWER - Control/Break

[James Weatherall]

John,

Are you using VNC Viewer 4 for Windows or VNC Viewer 4 for Java to access
your servers?  Which platforms are your servers running?  Which platforms
are your viewers running?

Ctrl+Break verifiably works (by just pressing Ctrl+break in the viewer) when
viewing a Windows NT 4 box from another Windows machine, using VNC Viewer 4
for Windows & VNC Server 4.

Wez @ RealVNC Ltd.


> Hi to all,
> 
> Using VNC V4 Viewer to access VNC V4 Server and trying to 
> interrupt a QBASIC programme that is running using the 
> combination Control/Break.
> 
> Have tried all the combinations
> 
> Control key down, press break key
> 
> Select Ctrl from F8 menu and pressing break key
> 
> Select Ctrl from F8 menu and pressing Control key + break key
> 
> Have had no success in terminating the distant DOS/QBASIC 
> programme running using above combinations.
> 
> Have tried platforms: Windows95, Windows98 & XP
> 
> Must admit have not tried performing from Server to a Viewer.
> 
> In our operation we have Servers running and use Viewers to 
> access them.
> 
> Any assistance would be helpful.
> 
> I find the instructions re use of F8 Ctrl selection doesn't 
> really explain whether you also need to press Ctrl key or not.
> 
> Regards
> 
> John Wall
> Network Monitoring & Software Support
> Climate Group
> Department of Agriculture Western Australia 
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RE: (no subject)

[James Weatherall]

Check that you are running VNC as a service, and that Fast User Switching or
Remote Desktop have not been used on the machine.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Monte Krebsbach
> Sent: 07 September 2004 16:53
> To: [EMAIL PROTECTED]
> Subject: (no subject)
> 
> 
> I am getting the following error message when trying to 
> connect to a windows
> XP SP2 machine.
> 
> I am running the latest version of RealVNC V4.0.
> 
> SelectObject to CompatibleDC failed: Access is denied. (5)  
> This message is
> coming from the viewer.
> 
> Thanks for any assistances.
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RE: VNC V4 - VIEWER - Control/Break

[James Weatherall]

John,

Please remember to Reply-To-All when replying to list messages.

The problem you are seeing is caused by using a DOS based program under
Windows 95/98/Me at the VNC Server end.  In spite of Microsoft's
documentation which makes a statement to the contrary, when key events are
generated by VNC Server, they must include the key scancode in order for DOS
applications to "see" the keyboard input.  VNC Server correctly generates
scancodes for keyboard input it generates, but unfortunately the system call
it uses to do this returns the wrong data under Windows 95/98/Me when
Ctrl-Break is pressed, so no scancode is generated.

If you run your DOS apps under NT/2K/XP etc then things will work as
expected.

Wez @ RealVNC Ltd.


> Hi Wez,
> 
> Our platforms are Windows 95 C
> 
> Distant end is running RealVnc V4 Server with a DOS Window 
> running QBASIC
> V4.5 Software
> 
> I am accessing the RealVnc V4 Server with RealVnc V4 Viewer 
> (not sure you can use a server to server combination)
> 
> Cannot interrupt the distant DOS/QBASIC V4.5 programme that 
> is running using any of the combinations below.
> 
> I am wondering if you tick the Ctrl in F8 and only press the 
> break key is this not a PAUSE just a thought but really 
> instructions don't say whether to press the Ctrl key after 
> ticking in F8 menu or not but have tried both ways to no avail.
> 
> Regards.
> 
> John
> 
> > --
> > From:   James Weatherall[SMTP:[EMAIL PROTECTED]
> > Sent:   Tuesday, 7 September 2004 8:52 PM
> > To: 'Wall, John'; [EMAIL PROTECTED]
> > Subject:RE: VNC V4 - VIEWER - Control/Break
> > 
> > John,
> > 
> > Are you using VNC Viewer 4 for Windows or VNC Viewer 4 for Java to 
> > access your servers?  Which platforms are your servers 
> running?  Which 
> > platforms are your viewers running?
> > 
> > Ctrl+Break verifiably works (by just pressing Ctrl+break in the 
> > Ctrl+viewer)
> > when
> > viewing a Windows NT 4 box from another Windows machine, using VNC 
> > Viewer
> > 4
> > for Windows & VNC Server 4.
> > 
> > Wez @ RealVNC Ltd.
> > 
> > 
> > > Hi to all,
> > > 
> > > Using VNC V4 Viewer to access VNC V4 Server and trying to 
> interrupt 
> > > a QBASIC programme that is running using the combination 
> > > Control/Break.
> > > 
> > > Have tried all the combinations
> > > 
> > > Control key down, press break key
> > > 
> > > Select Ctrl from F8 menu and pressing break key
> > > 
> > > Select Ctrl from F8 menu and pressing Control key + break key
> > > 
> > > Have had no success in terminating the distant DOS/QBASIC 
> programme 
> > > running using above combinations.
> > > 
> > > Have tried platforms: Windows95, Windows98 & XP
> > > 
> > > Must admit have not tried performing from Server to a Viewer.
> > > 
> > > In our operation we have Servers running and use Viewers 
> to access 
> > > them.
> > > 
> > > Any assistance would be helpful.
> > > 
> > > I find the instructions re use of F8 Ctrl selection 
> doesn't really 
> > > explain whether you also need to press Ctrl key or not.
> > > 
> > > Regards
> > > 
> > > John Wall
> > > Network Monitoring & Software Support Climate Group Department of 
> > > Agriculture Western Australia 
> > > ___
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> > > http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: server closed connection unexpectedly

[James Weatherall]

> So far I'm quietly watching the progress of topics like this 
> in this discussion list as well as several other discussion 
> forums and what I read is frightening, which to me states 
> that Microsoft is right regarding automatically turning on 
> the firewall on  XP's service pack 2.  What I don't agree 

[snip]
> It is not a good idea for any application program to control 
> the port forwarding rules on ANY firewall.  If this was the 
> case then a virus could land on the computer and configure 
> the firewall itself to allow hackers to communicate with it.

According to the Windows Firewall API specification, what you describe as
"not a good idea" is exactly what Microsoft *are* allowing applications to
do.  Any program run by an Administrator of a Windows XP machine can just
add itself to the exceptions list of the firewall and open up whatever ports
it likes.

Wez @ RealVNC Ltd.
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RE: server closed connection unexpectedly

[James Weatherall]

> What's the point in having a firewall built into Windows.  
> Unless it's possible to block access to that API. Hmmm

The same point that there is in having ipchains/iptables in Linux - it
allows an Administrator to restrict access to only those services that are
actually required, so that poorly coded services don't provide backdoors to
attackers.  The intent is not to protect from malicious programs run as
root/Administrator (or at least it shouldn't be...)

Cheers,

Wez @ RealVNC Ltd.
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RE: VNC4 Does not work on Windows XP but VNC 3.3.7 Works Fine

[James Weatherall]

JB,

You need to go to Connections and click on "Add", then select "Allow" and
press Ok.

VNC 4 refuses connections unless their IP matches a rule in the Hosts rules
list - if you empty the list then no connections will be accepted.  

Can I ask why you deleted the (default) "accept all" rule in the first
place?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of JB
> Sent: 09 September 2004 05:35
> To: [EMAIL PROTECTED]
> Subject: VNC4 Does not work on Windows XP but VNC 3.3.7 Works Fine 
> 
> 
> Hi all... need help...
>  
> I just uninstalled VNC3.3.7 and migrated to VNC4.  It just 
> does not work.
>  
> I have windows XP SP2.  No firewall.  I have a router and it 
> is all setup properly to accept connections.  Everything was 
> working great with 3.3.7.
>  
> When I try to connect externally via a VNC Viewer, the viewer 
> immediatly closes after I click OK and never returns.  I 
> checked the Task Manager and it seems to disapear after I click OK.
>  
> I tried connecting via a java enabled browser, it immediatly 
> displays a page not found.
>  
> I am using the proper port in all situations.  After all, it 
> was working fine with 3.3.7.
>  
> I have disabled Remote Desktop and Fast User Switching in 
> windows XP (and rebooted) and still does not work.  I have 
> Access Control in VNC4 all empty - thinking that will allow 
> access from all IP addresses. (Is that correct?, if not, how 
> can I allow full access) I just want it open to all IPs.
>  
> It just seems that the VNC4 server is not responding back to 
> requests although the server is running and I am able to see 
> it in Services.
>  
> One more thing, I was only able to access it from my own 
> machine.  I was was not even able to access it from the LAN 
> where the router is not in the picture and all the ports are open...
>  
> Something is wrong and I need help... could it be a bug?
>  
> Thanks
> JB
> 
>   
> -
> Do you Yahoo!?
> Read only the mail you want - Yahoo! Mail SpamGuard.
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RE: VNC4 Does not work on Windows XP but VNC 3.3.7 Works Fine

[James Weatherall]

Kenton,

There's no record of you ever having reported VNC 4 to not work on the list,
which would have been the first logical step if it didn't.  Did you have
problem with the viewer or the server?

I notice from previous posts that you're using ZoneAlarm - be aware that
certain old versions of ZoneAlarm had serious bugs that prevented VNC Viewer
4 from ever connecting to any hosts, even though VNC Viewer 3 continued to
be able to.  The behaviour resulting from their bug would give exactly the
results described by JB.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Kenton White
> Sent: 09 September 2004 08:36
> To: 'JB'; [EMAIL PROTECTED]; R. Heintz
> Subject: RE: VNC4 Does not work on Windows XP but VNC 3.3.7 
> Works Fine 
> 
> 
> > Hi all... need help...
> > 
> > I just uninstalled VNC3.3.7 and migrated to VNC4.  It just 
> does not work.
> > 
> > I have windows XP SP2.  No firewall.  I have a router and 
> it is all setup
> > properly to accept connections.  Everything was working 
> great with 3.3.7.
> 
> I had problems with upgrading from 3.3.7 to 4.0. With 4.0 I 
> was unable to
> establish a connection with a remote machine over the 
> Internet when with
> 3.3.7 all worked fine. The solution is - go back to using 
> 3.3.7 and don't
> bother using 4.0. That's what I've done!
> 
> Kenton
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RE: server closed connection unexpectedly

[James Weatherall]

Hi,

Assuming there isn't something fundamentally broken in your Windows XP
installation's TCP stack, there will be messages other than "unknown network
event for listener" in the application log.  They will be flagged as errors.
This also assumes that you are connecting to the correct port in the first
place.  Can you use telnet to check that you're connecting to the right
port?  (You should see "RFB 003.008")

Your assertion that "it's definitely a software problem in VNC 4" is bogus.
It's almost certainly a configuration issue, although it could also be a
problem with the host system.  Reminder - this is software we've tested
extenensively and wouldn't have released if it "just didn't work"...

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: 09 September 2004 07:22
> To: [EMAIL PROTECTED]
> Subject: server closed connection unexpectedly
> 
> 
> Hi,
> it's NOT e firewall issue! If i deinstall VNC 4.0 and 
> reinstall 3.3 all
> works fine... both 3.3 and 4.0 are using Port 5900.
> It's definitly a software problem in 4.0, but it seems to noone knows
> about...
> 
> Remember:
> > At the application log i found many errors:
> > "SocketManager: unknown
> > network event for listener".
> > There is no firewall on this machines,
> > also the XP firewall is inactive.
> 
> 
> All previous versions worked fine, whithout of any trouble... Now im
> trying for 3 days and nothing works!
> 
> I don't understand, why they made a stable application such a crap
> (remind - it's a final, not a beatversion).
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RE: vnc viewer disappears

[James Weatherall]

Dirk,

The log output you sent was from the server - you can run the viewer with
logging enabled and that may provide more useful information as to why it
isn't successfully connecting.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of dh
> Sent: 08 September 2004 17:45
> To: [EMAIL PROTECTED]
> Subject: vnc viewer disappears
> 
> 
> Hello,
>  
> I have the following problem and would be happy if someone 
> could tell me what I'm doing wrong.
>  
> I have a Linux machine on which I run vncserver.
> I'd like to connect to that machine from my Windows 2000 
> machine by using the viewer (vnc-4.0-x86_win32_viewer.exe).
>  
> When I start the viewer I specify as server [ip address linux 
> machine]:1
>  
> When I do that the "VNC Viewer : Connection Details" window 
> just disappears. In the task manager I can see the process 
> vnc-4.0-x86_win, but the CPU time is 00:00, and no window is 
> shown. The logfile on the linux machine shows the following
>  
> 09/09/2004 18:31:12 See http://xf4vnc.sf.net for 
> xf4vnc-specific information
> 09/09/2004 18:31:12 Desktop name 'X' (linux:1)
> 09/09/2004 18:31:12 Protocol versions supported: 3.130, 3.3
> 09/09/2004 18:31:12 RGB format 8 8 8
> 09/09/2004 18:31:12 Listening for VNC connections on TCP port 5901
> 09/09/2004 18:31:12 Listening for HTTP connections on TCP port 5801
> 09/09/2004 18:31:12   URL http://[linux machine]:5801
> Could not init font path element 
> /usr/X11R6/lib/X11/fonts/local, removing from list!
> Could not init font path element 
> /usr/X11R6/lib/X11/fonts/100dpi:unscaled, removing from list!
> Could not init font path element 
> /usr/X11R6/lib/X11/fonts/CID, removing from list!
> 09/09/2004 18:33:09
> 09/09/2004 18:33:09 Got connection from client [ip address client]
> 09/09/2004 18:33:09 Protocol version 3.8
> 09/09/2004 18:33:09 Ignoring minor version mismatch
>  
> I am aware of the line "... version mismatch ...", but can 
> that be the reason for the behaviour.
>  
> When I try to get the vnc connection via the web browser 
> through the URL http://[linux machine]:5801, it works fine.
>  
> If anybody has an idea what's wrong, please let me know.
>  
>  
> Regards
>  
> Dirk
> 
> __
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RE: Version 4 and multiple displays under Windows XP

[James Weatherall]

Robert,

I'm a little confused.  VNC provides remote access to desktops and you seem
to be complaining about it doing just that.  Making the whole desktop
available remotely is precisely what it should do!  If the problem is really
the sheer scale of the total desktop, can't you simply move the monitors to
be side-by-side?

Further detail on the Desktop options not working would be useful.  In
particular, are effects such as shaded window titlebars and anti-aliased
fonts being disabled or not?  Have you enabled all of the Desktop options?

Cheers,

Wez @ RealVNC Ltd.

P.S.  As an aside, Enterprise Edition
(http://www.realvnc.com/products/enterprise) will include functionality to
support remoting of an individual monitor rather than of the whole desktop.
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RE: Strange viewer behaviour - black non resizable screen - WinXP SP2?

[James Weatherall]

Frank,

Had you been using Fast User Switching or Remote Desktop beforehand?

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Frank Hamersley
> Sent: 10 September 2004 01:22
> To: VNC List (E-mail)
> Subject: Strange viewer behaviour - black non resizable 
> screen - WinXP SP2?
> 
> Config is ...
> VNC4.0 Client on W2K dialup (ie.slow) to Internet
>SSH tunnel terminated on Linux 7.3 DMZ host using 
> PuTTY 0.55 Port 5900.
> VNC4.0 Server on WXPPro SP2 FW enabled
>Behind Linux 8.0 bastion iptables FW on a cable link.
>tcp/5900 routed (forwarded) from Linux 7.3 to WinXP Pro host
> 
> Initial connection proceeded normally - VNC Server password 
> was entered and the viewer window opened to show the XP Login 
> screen.  Selected a user id and entered the Win password.  
> Viewer then opened to a black screen.
> 
> Curiously when I minimised the screen and then tried to 
> enlarge it only opened a small window with no screen display 
> - only big enough to show VNC in the title bar and the 
> standard _OX icons at the top right.
> 
> This window was not resizable - although I could switch to 
> FullScreen (still
> black) and back to Minimised.
> 
> Eventually I closed this and opened another Viewer session 
> which after soliciting the VNC password displayed a VNC 
> Viewer:Error panel - "SelectObject to CompatibleDC failed: 
> The operation completed successfully.
> (0)"  [OK]
> 
> Will post more details when I get home and can test from 
> behind the bastion FW.  I suspect SP2 is complicit - are 
> there any other likely possibilities?
> 
> Regards,
> Frank.
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RE: VNC on Port 80

[James Weatherall]

Not if you're using VNC 4 - then you simply specify host::port rather than
host:display, so in this case

Host::80

Should work.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of DILATED_ONE
> Sent: 10 September 2004 22:39
> To: 'James Walker'; [EMAIL PROTECTED]
> Subject: RE: VNC on Port 80
> 
> 
> On your viewer what are you setting it to?? Remember you 
> would need to set
> the server to port 80 and the viewer to -5820. 80 minus 5900 .
> 
> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On
> Behalf Of James Walker
> Sent: Friday, September 10, 2004 9:07 AM
> To: [EMAIL PROTECTED]
> Subject: VNC on Port 80
> 
> 
> Hi,
> 
> I cant get vnc to work on this port at all i set up my 
> firewall on router
> right but it still will not work i know that the port is 
> usually used for
> Internet explorer and wish to use this port as i am at 
> college and do not
> allow the other default ports to go out
> 
> any help much appreaciated 
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RE: Strange viewer behaviour - black non resizable screen - WinXP SP2?

[James Weatherall]

Frank,

As is stated in the documentation, the current VNC release is not compatible
with Fast User Switching.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Frank Hamersley
> Sent: 11 September 2004 07:45
> To: VNC List (E-mail)
> Subject: RE: Strange viewer behaviour - black non resizable 
> screen - WinXP SP2?
> 
> James,
> 
> FUS is in use on the machine but I'm not sure if any profiles 
> were in use at the time.  Certainly the screen-save timeout 
> had occurred because I recall this was presented to via VNC.  
> As a rule the other users of the system don't log out and 
> given it had only been turned on that morning to access 
> hotmail I suspect at least 1 FUS session was established.
> 
> RD has never has been used on this PC.
> 
> The only other point to make is this machine is (at 128M) 
> quite memory stressed and thrashes the HDD mercilessly from 
> time to time (one day I'll get some more RAM for it).  
> Perhaps WinXP itself wasn't keeping its end of the bargain in 
> a timely fashion?
> 
> Regardless the viewer reacted quite badly to the (presumably) 
> mixed signals coming from the server.  I will keep monitoring 
> the situation.
> 
> Cheers, Frank.
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Behalf Of James Weatherall
> Sent: Friday, 10 September 2004 7:54 PM
> To: 'Frank Hamersley'; 'VNC List (E-mail)'
> Subject: RE: Strange viewer behaviour - black non resizable 
> screen - WinXP SP2?
> 
> 
> Frank,
> 
> Had you been using Fast User Switching or Remote Desktop beforehand?
> 
> Cheers,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Frank Hamersley
> > Sent: 10 September 2004 01:22
> > To: VNC List (E-mail)
> > Subject: Strange viewer behaviour - black non resizable 
> screen - WinXP 
> > SP2?
> >
> > Config is ...
> > VNC4.0 Client on W2K dialup (ie.slow) to Internet
> >SSH tunnel terminated on Linux 7.3 DMZ host using PuTTY 0.55 
> > Port 5900.
> > VNC4.0 Server on WXPPro SP2 FW enabled
> >Behind Linux 8.0 bastion iptables FW on a cable link.
> >tcp/5900 routed (forwarded) from Linux 7.3 to WinXP Pro host
> >
> > Initial connection proceeded normally - VNC Server password was 
> > entered and the viewer window opened to show the XP Login screen.  
> > Selected a user id and entered the Win password.
> > Viewer then opened to a black screen.
> >
> > Curiously when I minimised the screen and then tried to enlarge it 
> > only opened a small window with no screen display
> > - only big enough to show VNC in the title bar and the standard _OX 
> > icons at the top right.
> >
> > This window was not resizable - although I could switch to 
> FullScreen 
> > (still
> > black) and back to Minimised.
> >
> > Eventually I closed this and opened another Viewer session 
> which after 
> > soliciting the VNC password displayed a VNC Viewer:Error panel - 
> > "SelectObject to CompatibleDC failed:
> > The operation completed successfully.
> > (0)"  [OK]
> >
> > Will post more details when I get home and can test from behind the 
> > bastion FW.  I suspect SP2 is complicit - are there any 
> other likely 
> > possibilities?
> >
> > Regards,
> > Frank.
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RE: VNC on Port 80

[James Weatherall]

James,

The server runs on a particular port, and the viewer must be told that port.
If you "set the viewer port" to something different to what the server is
listening for connections, then the server won't receive those connections.

Wez @ RealVNC Ltd.


> -Original Message-
> From: James Walker [mailto:[EMAIL PROTECTED] 
> Sent: 11 September 2004 10:46
> To: [EMAIL PROTECTED]
> Cc: James Weatherall
> Subject: Re: VNC on Port 80
> 
> 
> the server is set to port 80 and the viewer set to port 8080 as i know
> these are the ports that go out to the net ihave tried verious ways to
> get it to work but no do
> 
> 
> On Fri, 10 Sep 2004 18:50:18 -0700, DILATEDPEOPLES
> <[EMAIL PROTECTED]> wrote:
> > You are correct. With the minus sign or 2 colons either way 
> works, 2 colons
> > is easier . Then you don't have to do any math  haha
> > 
> > 
> > 
> > -Original Message-
> > From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On
> > Behalf Of James Weatherall
> > Sent: Friday, September 10, 2004 5:16 PM
> > To: [EMAIL PROTECTED]; 'James Walker'; [EMAIL PROTECTED]
> > Subject: RE: VNC on Port 80
> > 
> > Not if you're using VNC 4 - then you simply specify 
> host::port rather than
> > host:display, so in this case
> > 
> > Host::80
> > 
> > Should work.
> > 
> > Wez @ RealVNC Ltd.
> > 
> > > -Original Message-
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED] On Behalf Of DILATED_ONE
> > > Sent: 10 September 2004 22:39
> > > To: 'James Walker'; [EMAIL PROTECTED]
> > > Subject: RE: VNC on Port 80
> > >
> > >
> > > On your viewer what are you setting it to?? Remember you
> > > would need to set
> > > the server to port 80 and the viewer to -5820. 80 minus 5900 .
> > >
> > > -Original Message-
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED] On
> > > Behalf Of James Walker
> > > Sent: Friday, September 10, 2004 9:07 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: VNC on Port 80
> > >
> > >
> > > Hi,
> > >
> > > I cant get vnc to work on this port at all i set up my
> > > firewall on router
> > > right but it still will not work i know that the port is
> > > usually used for
> > > Internet explorer and wish to use this port as i am at
> > > college and do not
> > > allow the other default ports to go out
> > >
> > > any help much appreaciated
> > > ___
> > > VNC-List mailing list
> > > [EMAIL PROTECTED]
> > > To remove yourself from the list visit:
> > > http://www.realvnc.com/mailman/listinfo/vnc-list
> > > ___
> > > VNC-List mailing list
> > > [EMAIL PROTECTED]
> > > To remove yourself from the list visit:
> > > http://www.realvnc.com/mailman/listinfo/vnc-list
> > 
> > 
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: windows xp sp2

[James Weatherall]

Vince,

What are the instructions you gave intended to achieve?

The problem that Mark is seeing is probably that SP2 has the firewall on by
default - he either needs to disable the firewall or add an exception for
the VNC port (usually 5900).

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Vince
> Sent: 11 September 2004 17:38
> To: [EMAIL PROTECTED]
> Subject: FW: windows xp sp2
> 
> 
> AFTER setup of the service pack 2,
> stop the vnc server with 'winvnc -kill',
> then restart it with 'winvnc'
> 
> xp will ask what you want to do after restarting vnc...
> 
> for easy access, place winvnc and dll's in the windows dir.
> 
> ViNCe
> SimBox.NL
> 
> http://VNC.SimBox.NL/
> 
> -Oorspronkelijk bericht-
> Van: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Mark Swarts
> Verzonden: vrijdag 10 september 2004 14:45
> Aan: [EMAIL PROTECTED]
> Onderwerp: windows xp sp2
> 
> 
> I just downloaded sp2 for windows xp on both my local and remote
> machines. When I try to connect from my remote machine, I get 
> "Failed to
> connect to server". This was not happening before the 
> "upgrade". I have
> made no changes in the vnc config.
> 
> 
> 
> Thanks.
> ___
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> http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: local host vs local address,

[James Weatherall]

Max(?),

Have you checked that you don't have "Only accept connections from the local
machine" ticked in the Connections tab of the VNC Server (Service-Mode)
Options panel?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Big Max Leo
> Sent: 12 September 2004 19:05
> To: [EMAIL PROTECTED]
> Subject: local host vs local address, 
> 
> I have been using Real VNC for a while with great success, 
> but I changed my config and I am now using a WIFI router that 
> is used as DHCP server; I use port forwarding because I have 
> 3 PCs that I need to access remotely from time to time 
>  
> Everything would be great BUT, it works ONLY if I start 
> manually the realVNC serveur if I run it as a service, it 
> takes the local host address 127.0.0.1 and when run manually 
> it takes my lan ip address 192.168.0.100 and everything runs fine ...
>  
> I can't figure it out.
>  
> Big Max Leo
> Queen of the Cyber Jungle
> [EMAIL PROTECTED]
> www.bigmax.org  www.stevepotts.net 
>  Beware : my anti-spam filter is 
> a little too much sometimes .. and deletes some mail from 
> friends !
> ___
> VNC-List mailing list
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RE: local host vs local address,

[James Weatherall]

Max,

Can you explain precisely what you mean by "takes the right IP"?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: Big Max Leo [mailto:[EMAIL PROTECTED] 
> Sent: 13 September 2004 11:32
> To: 'James Weatherall'; [EMAIL PROTECTED]
> Subject: RE : local host vs local address, 
> 
> Yes, I have checked.
> I just installed another free VNC product and I don't run in 
> the pb : it takes the right IP no matter how you start the 
> server (manually or as a
> service) as opposed to RealVNC that only takes the right IP 
> if I start the server manually for some unknown reason.
> The problem started after the WIFI router installation, I had 
> to configure the router to differentiate my 3 machines to 
> make sure I would access the right one remotly.
> I use the router as DHCP server and reserve 3 specifics 
> address in the range for my 3 machines, (to get the same IP 
> every time) then I use port forwarding to reach on the right 
> port with VNC (I give each of the 3 VNC servers a specific 
> port number)
> 
> Thank you
> 
> 
> -Message d'origine-
> De : [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] De la part de James 
> Weatherall Envoyi : lundi 13 septembre 2004 11:57 @ : 'Big 
> Max Leo'; [EMAIL PROTECTED] Objet : RE: local host vs 
> local address, 
> 
> 
> Max(?),
> 
> Have you checked that you don't have "Only accept connections 
> from the local machine" ticked in the Connections tab of the 
> VNC Server
> (Service-Mode) Options panel?
> 
> Wez @ RealVNC Ltd.
>  
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Big Max Leo
> > Sent: 12 September 2004 19:05
> > To: [EMAIL PROTECTED]
> > Subject: local host vs local address,
> > 
> > I have been using Real VNC for a while with great success, but I 
> > changed my config and I am now using a WIFI router that is used as 
> > DHCP server; I use port forwarding because I have
> > 3 PCs that I need to access remotely from time to time 
> >  
> > Everything would be great BUT, it works ONLY if I start 
> manually the 
> > realVNC serveur if I run it as a service, it takes the local host 
> > address 127.0.0.1 and when run manually it takes my lan ip address 
> > 192.168.0.100 and everything runs fine ...
> >  
> > I can't figure it out.
> >  
> > Big Max Leo
> > Queen of the Cyber Jungle
> > [EMAIL PROTECTED]
> > www.bigmax.org <http://www.bigmax.org/> www.stevepotts.net 
> > <http://www.stevepotts.net/> Beware : my anti-spam filter 
> is a little 
> > too much sometimes .. and deletes some mail from friends !
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
> ___
> VNC-List mailing list
> [EMAIL PROTECTED]
> To remove yourself from the list visit:
> http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: local host vs local address,

[James Weatherall]

Max,

What precisely do you mean by "takes 127.0.0.1" and "takes 192.168.0.100"?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: Big Max Leo [mailto:[EMAIL PROTECTED] 
> Sent: 13 September 2004 11:50
> To: 'James Weatherall'; [EMAIL PROTECTED]
> Subject: RE : local host vs local address, 
> 
> It takes the right IP (192.168.0.100 for instance), which is 
> one of the address I "reserved" in the routeur config to 
> assign to one specific machine (associated with MAC address).
> Real VNC takes 127.0.0.1 when I run it as a service, and 
> takes 192.168.0.100 when I launch it manually :-)
> 
> 
> 
> 
> -Message d'origine-
> De : James Weatherall [mailto:[EMAIL PROTECTED] Envoyi : lundi 
> 13 septembre 2004 12:45 @ : 'Big Max Leo'; 
> [EMAIL PROTECTED] Objet : RE: local host vs local address, 
> 
> 
> Max,
> 
> Can you explain precisely what you mean by "takes the right IP"?
> 
> Wez @ RealVNC Ltd.
>  
> 
> > -Original Message-
> > From: Big Max Leo [mailto:[EMAIL PROTECTED]
> > Sent: 13 September 2004 11:32
> > To: 'James Weatherall'; [EMAIL PROTECTED]
> > Subject: RE : local host vs local address, 
> > 
> > Yes, I have checked.
> > I just installed another free VNC product and I don't run in
> > the pb : it takes the right IP no matter how you start the 
> > server (manually or as a
> > service) as opposed to RealVNC that only takes the right IP 
> > if I start the server manually for some unknown reason.
> > The problem started after the WIFI router installation, I had 
> > to configure the router to differentiate my 3 machines to 
> > make sure I would access the right one remotly.
> > I use the router as DHCP server and reserve 3 specifics 
> > address in the range for my 3 machines, (to get the same IP 
> > every time) then I use port forwarding to reach on the right 
> > port with VNC (I give each of the 3 VNC servers a specific 
> > port number)
> > 
> > Thank you
> > 
> > 
> > -Message d'origine-
> > De : [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] De la part de James 
> > Weatherall Envoyi : lundi 13 septembre 2004 11:57 @ : 'Big 
> > Max Leo'; [EMAIL PROTECTED] Objet : RE: local host vs 
> > local address, 
> > 
> > 
> > Max(?),
> > 
> > Have you checked that you don't have "Only accept connections
> > from the local machine" ticked in the Connections tab of the 
> > VNC Server
> > (Service-Mode) Options panel?
> > 
> > Wez @ RealVNC Ltd.
> >  
> > 
> > > -Original Message-
> > > From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED]
> 
> > > On Behalf Of Big Max Leo
> > > Sent: 12 September 2004 19:05
> > > To: [EMAIL PROTECTED]
> > > Subject: local host vs local address,
> > > 
> > > I have been using Real VNC for a while with great success, but I
> > > changed my config and I am now using a WIFI router that 
> is used as 
> > > DHCP server; I use port forwarding because I have
> > > 3 PCs that I need to access remotely from time to time 
> > >  
> > > Everything would be great BUT, it works ONLY if I start
> > manually the
> > > realVNC serveur if I run it as a service, it takes the local host
> > > address 127.0.0.1 and when run manually it takes my lan 
> ip address 
> > > 192.168.0.100 and everything runs fine ...
> > >  
> > > I can't figure it out.
> > >  
> > > Big Max Leo
> > > Queen of the Cyber Jungle
> > > [EMAIL PROTECTED]
> > > www.bigmax.org <http://www.bigmax.org/> www.stevepotts.net
> > > <http://www.stevepotts.net/> Beware : my anti-spam filter 
> > is a little
> > > too much sometimes .. and deletes some mail from friends ! 
> > > ___
> > > VNC-List mailing list
> > > [EMAIL PROTECTED]
> > > To remove yourself from the list visit: 
> > > http://www.realvnc.com/mailman/listinfo/vnc-list
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit: 
> > http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: local host vs local address,

[James Weatherall]

Max,

VNC Server binds to network interfaces in one of two ways.  Either:

- It binds to all network interfaces (INADDR_ANY), or
- It binds only to the local loopback interface (127.0.0.1)

If your tray icon says that it has bound to 127.0.0.1 then one of three
things has happened:

- Your machine only has local loopback & no network interface is available
- You have explicitly configured VNC Server to only listen for local
loopback connections
- VNC Server is actually listening on INADDR_ANY, but the tray icon contents
are out of date and reflect a point in time before the network interfaces
had come up.  This tray icon behaviour is a known bug.  It could cause a
Service-Mode server to show "Not accepting connections" or "127.0.0.1" in
some cases.

I assume that you've tried connecting to the server in spite of the tray
icon's contents and established that it's not accepting connections?

Cheers,

Wez @ RealVNC Ltd.


> In the tray, on the server icon, I can read the IP that is being used.
> so when run as a service it says 127.0.0.1 and my PC cannot 
> be reached remotly.
> and when I launch server manually it reads 192.168.0.100 and 
> RealVNC works fine.
> I like to use it as a service, as I never know in advance 
> when I need to reach my machine ...
> 
> -Message d'origine-
> De : James Weatherall [mailto:[EMAIL PROTECTED] Envoyi : lundi 
> 13 septembre 2004 12:59 @ : 'Big Max Leo'; 
> [EMAIL PROTECTED] Objet : RE: local host vs local address, 
> 
> 
> Max,
> 
> What precisely do you mean by "takes 127.0.0.1" and "takes
> 192.168.0.100"?
> 
> Wez @ RealVNC Ltd.
>  
> 
> > -Original Message-
> > From: Big Max Leo [mailto:[EMAIL PROTECTED]
> > Sent: 13 September 2004 11:50
> > To: 'James Weatherall'; [EMAIL PROTECTED]
> > Subject: RE : local host vs local address, 
> > 
> > It takes the right IP (192.168.0.100 for instance), which is
> > one of the address I "reserved" in the routeur config to 
> > assign to one specific machine (associated with MAC address).
> > Real VNC takes 127.0.0.1 when I run it as a service, and 
> > takes 192.168.0.100 when I launch it manually :-)
> > 
> > 
> > 
> > 
> > -Message d'origine-
> > De : James Weatherall [mailto:[EMAIL PROTECTED] Envoyi : lundi
> > 13 septembre 2004 12:45 @ : 'Big Max Leo'; 
> > [EMAIL PROTECTED] Objet : RE: local host vs local address, 
> > 
> > 
> > Max,
> > 
> > Can you explain precisely what you mean by "takes the right IP"?
> > 
> > Wez @ RealVNC Ltd.
> >  
> > 
> > > -Original Message-
> > > From: Big Max Leo [mailto:[EMAIL PROTECTED]
> > > Sent: 13 September 2004 11:32
> > > To: 'James Weatherall'; [EMAIL PROTECTED]
> > > Subject: RE : local host vs local address,
> > > 
> > > Yes, I have checked.
> > > I just installed another free VNC product and I don't run 
> in the pb 
> > > : it takes the right IP no matter how you start the 
> server (manually
> 
> > > or as a
> > > service) as opposed to RealVNC that only takes the right IP
> > > if I start the server manually for some unknown reason.
> > > The problem started after the WIFI router installation, I had 
> > > to configure the router to differentiate my 3 machines to 
> > > make sure I would access the right one remotly.
> > > I use the router as DHCP server and reserve 3 specifics 
> > > address in the range for my 3 machines, (to get the same IP 
> > > every time) then I use port forwarding to reach on the right 
> > > port with VNC (I give each of the 3 VNC servers a specific 
> > > port number)
> > > 
> > > Thank you
> > > 
> > > 
> > > -Message d'origine-
> > > De : [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] 
> > > De la part de James Weatherall Envoyi : lundi 13 septembre 2004 
> > > 11:57 @ : 'Big Max Leo'; [EMAIL PROTECTED] Objet : RE: 
> local host
> 
> > > vs local address,
> > > 
> > > 
> > > Max(?),
> > > 
> > > Have you checked that you don't have "Only accept connections
> > > from the local machine" ticked in the Connections tab of the 
> > > VNC Server
> > > (Service-Mode) Options panel?
> > > 
> > > Wez @ RealVNC Ltd.
> > >  
> > > 
> > > > -Original Message-
> > > > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTE

RE: iPAQ connection

[James Weatherall]

Jim,

The log indicates that there is already a program running on port 5900.  Are
you sure you haven't left the VNC 3 server running at the same time as the
VNC 4 server?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Jim
> Sent: 13 September 2004 12:37
> To: VNC
> Subject: iPAQ connection
> 
> VNC (4) unable to connect to desktop computer using WiFi 
> network on iPAQ 5550 and WinXP (home). VNC 3 works just fine 
> (if slowly). The error logged is:
> 
> "VNC Server 4.0 - VNC Server for Win32, Version 4.0 Built on 
> Jun 15 2004 at 14:29:41 Copyright . RealVNC Ltd. 2002-2004
> 
> Starting User-Mode VNC Server.
> 
> Sat Sep 11 10:18:22 2004
>  VNCServerWin32: TcpListener on port 5900 failed (unable to 
> bind listening
>   socket: Only one usage of each socket address 
> (protocol/network
>   address/port) is normally permitted.
>  (10048))"
> 
>  On attempted connection, "Active Ports" shows a connection 
> established  (port 5900) to the iPAQ but there is nothing 
> displayed on the PDA  screen. To reiterate, VNC 3 does connect.
> 
>  Thanks for help.
> 
>  
> 
> 
>  --
> Jim
> ___
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RE: iPAQ connection

[James Weatherall]

Jim,

I'm confused - you say below that "I can connect by WiFi using another PC to
the XP machine using VNC 4 which would further imply that port 5900 is not
being used by anyone else".  But earlier you said that you couldn't connect
to the server.

Are you actually saying that VNC 4 server works from all viewers except the
CE one?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Jim
> Sent: 13 September 2004 18:02
> To: [EMAIL PROTECTED]
> Subject: iPAQ connection
> 
> 
> > The log indicates that there is already a program running 
> on port 5900.  Are
> > you sure you haven't left the VNC 3 server running at the 
> same time as the
> > VNC 4 server?
> > 
> > Wez @ RealVNC Ltd.
> 
> Absolutely sure as I only downloaded VNC 3 in desperation after all
> failed with VNC 4. According to Active Ports there is nothing else
> using port 5900 (and I have disabled the XP remote service).
> 
> I can connect by WiFi using another PC to the XP machine using VNC 4
> which would further imply that port 5900 is not being used by anyone
> else. Finally, I have hard reset the iPAQ and started from scratch
> with VNC 4 with no improvement.
> 
> Thanks for the response.
> 
>  --
> Jim
> ___
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RE: Re[2]: iPAQ connection

[James Weatherall]

> There is a screen that flashes by when I initiate the viewer on the
> iPAQ but it goes to quickly to read.

Jim,

The chances are that the viewer you are using on the CE machine just isn't
fully compatible with VNC.  You may find that it will work if you select
"Use protocol 3.3" in the Legacy panel of the VNC Server Options.

Wez @ RealVNC Ltd.
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RE: SelectObject to CompatibleDC failed: The operation completed successfully. (0)

[James Weatherall]

Guys,

Is Alan's prognosis correct, in suggesting that the prior use of Remote
Desktop or Fast User Switching has caused that behaviour?

If so then we'll look into providing a more useful error response in this
situation, until full XP compatibility is complete.

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Alan Watchorn
> Sent: 14 September 2004 01:38
> To: VNC List
> Subject: RE: SelectObject to CompatibleDC failed: The 
> operation completed successfully. (0)
> 
> The answer is that Remote Console and VNC are not 
> compatiible.  Use one or the other (they both perform the 
> same function but Remote Desktop supports remote printing).  
> If you have logged in with Remote Desktop, all future 
> attempts to use VNC will get the error you are seeing (until 
> you reboot XP, I think) so the answer is simple:  use one or 
> the other but not both.
> 
> Alan Watchorn
> [EMAIL PROTECTED]
> (760) 692-4300
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Behalf Of [EMAIL PROTECTED]
> Sent: Monday, September 13, 2004 3:20 PM
> To: [EMAIL PROTECTED]
> Subject: SelectObject to CompatibleDC failed: The operation 
> completed successfully. (0)
> 
> 
> Hi
> 
> Can anybody help?
> 
> I am using a Dell notebook running XP Professional (SP2) 
> attempting to connected to a Dell desktop running XP 
> Professional (SP2) via a dialup ISP.  The desktop is cabled.  
> I get the following error SelectObject to CompatibleDC 
> failed: The operation completed successfully. (0)
> 
> I have successfully tested the connection with both computers 
> in the one location (still using dialup and wireless network 
> disabled), so find it very frustrating when the same process 
> wont work between cities.
> 
> Hope someone has a solution.
> 
> Regards
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RE: updating DynDNS

[James Weatherall]

Ian,

I use the No-Ip dynamic DNS client and have found it to work flawlessly.

Cheers,

Wez @ RealVNC Ltd. (aka James N. Weatherall)
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Ian D. Weatherall
> Sent: 14 September 2004 05:41
> To: [EMAIL PROTECTED]
> Subject: updating DynDNS
> 
> Hi Folks,
> 
> I use a DynDNS account to keep the same address for my server 
> at home; I have tried a number of products to keep the ip 
> updated without much success.
> 
> Can I ask which freeware programs have you folks found to be the best?
> 
> Best regards,
> 
> Ian
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RE: iPAQ connection

[James Weatherall]

Jim, 

No problem.  We have plans for a VNC Viewer for Windows CE in the not to
distant future although I'm afraid we can't provide any more details at this
stage. :(

Wez @ RealVNC Ltd.


> > The chances are that the viewer you are using on the CE 
> machine just 
> > isn't fully compatible with VNC.  You may find that it will work if 
> > you select "Use protocol 3.3" in the Legacy panel of the 
> VNC Server Options.
> > 
> > Wez @ RealVNC Ltd.
> 
> Just so! It works with the Legacy option. No doubt someone 
> will write an updated CE viewer soon. Meanwhile, thank you 
> very much for your attention and speedy response.
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RE: Not accepting connections

[James Weatherall]

Erhaps a stupid question, but have you tried uninstalling & reinstalling the
network card & TCP stack?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of DILATED_ONE
> Sent: 14 September 2004 16:32
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: RE: Not accepting connections
> 
> This is non servix pack 2 with firewall off and no external 
> firewall. I can ping from the local segment but not from the 
> internet which is fine, I can FTP to the system VIA the 
> internet so I even tried to set the VNC port to 21 and same 
> deal, when I hover the mouse over the tray icon it says not 
> accepting connections. 
> 
> -Original Message-
> From: geofgibson [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, September 14, 2004 8:30 AM
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: RE: Not accepting connections
> 
> 
> If you this is XP Pro and you have SP2 installed, the Windows 
> firewall is on
> automatically and it may be stopping your port traffic. Can 
> you ping the VNC
> server?  Can you Telnet to the port?
> 
> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On
> Behalf Of DILATED_ONE
> Sent: Tuesday, September 14, 2004 8:04 AM
> To: [EMAIL PROTECTED]
> Subject: Not accepting connections
> 
> So I did a search and did not find anything on this topic as 
> such,. I run a
> ton of instances of different VNC clients all over my 
> network. 1 WXP pro
> system on a HP laptop gives me issues. No matter what version 
> of VNC I use
> it always say not accepting connections, im not sure how to 
> fix this. I
> change ports, and same deal. Un install , re install reboot , 
> blah blah
> blah. Not sure what the issue is. 
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RE: Windows CE server...

[James Weatherall]

Vince,

Yes and no.  We have a server in development, but it won't be released for
some time.  No servers for Symbian or Nokia as yet, I'm afraid.

There are some third-party ports of VNC to other platforms that you should
be able to find via Google, that may work.

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: Vince [mailto:[EMAIL PROTECTED] 
> Sent: 16 September 2004 05:46
> To: James Weatherall; 'VNC'
> Subject: Windows CE server...
> Importance: High
> 
> Is there any SERVER for Windows CE? (SH3, HP Palmtop PC)
> 
> and maybe even one for Symbian EPOC on Nokia 9210 (or Nokia 9500?)
> 
> 
> 
> 
> ViNCe
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RE: DI 624 problems

[James Weatherall]

Have you installed any updates to your D-Link drivers?
Have you checked that your D-Link network is actually "up" on the home
machine, before the D-Link AirPlus application has run?

Under Windows 2000, we have found that the latest D-Link drivers seem to not
connect until the D-Link AirPlus application is run with Administrator
rights, rendering them more or less useless.  Could this be the problem you
are seeing, albeit under XP?

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> [EMAIL PROTECTED]
> Sent: 17 September 2004 12:39
> To: [EMAIL PROTECTED]
> Subject: DI 624 problems
> 
> Up until a few days ago, I was able to use VNC to get to one 
> of the machines on my home LAN.  The only things that were 
> changed were that I replaced the "default" SSID in the 
> wireless setup with a new name.  Secondly, I've done some 
> Microsoft updates (not SP2 as I am running Windows XP Pro) 
> but some other "critical" security updates.
> I have both the Firewall and VPN configurations on the router 
> to allow access on ports 5800, 5802, 5900, and 5902.  I 
> cannot get in via the VNC browser nor the Web client.
> As I indicated previously, this worked a few days ago, now I 
> cannot get in.  If anyone has suggestions, I'd appreciate it. 
>  I am traveling later next week and I really would like to be 
> able to access the home network from my hotel.
> Thanks and have a good day.
> R. Stefanoski
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RE: connecting through a linksys router

[James Weatherall]

Geof & Wez,

I think Geof is a little confused.  Incoming connections to VNC Server for
Windows are by default made to port 5900, and the Java viewer is served on
port 5800.  Under Unix platforms, the Xvnc servers will accept connections
on 5901, 5902, etc.  All "clients" (i.e. VNC Viewers) connecting to a
particular VNC Servr use the same host/port combination, i.e.
name.no-ip.info:0 will be used by all viewers wishing to connect to VNC
Server zero on machine name.no-ip.info.

So Wes needs to open ports 5900 and 5800 on his firewall and then put
http://name.no-ip.info:5800/ in his browser.  He shouldn't need to change
the host name, since the Java applet will fill that field in automatically
with the right value.

Cheers,

Wez @ RealVNC Ltd.


> You need more ports open than that.  The first client opened 
> will be 5901,
> so at least open up 5901 in addition to 5900.
> 
> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Wes Hagood
> Sent: Saturday, September 18, 2004 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: connecting through a linksys router
> 
>ok, i have been reading on some other posts, and i seem to 
> be having a
>problem  connecting.   I  opened up port 5900 and 5800... 
> try the java
>approach, it will start the java app and prompt me to 
> choose the host.
>so  i  type  in the name  and 
> either get a
>dialog  stating  to  connect,  or  nothing  at  
> all  running a
>win2000pro maching and on dsl
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RE: New To VNC - and lost

[James Weatherall]

The first thing to specify is whether or not you have a firewall enabled
(either on the host machine or elsewhere on your network, between the viewer
and server machines).

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: 18 September 2004 18:56
> To: [EMAIL PROTECTED]
> Subject: New To VNC - and lost
> 
> 
> Hello:  I am very very new to using VNC and totally lost.  I 
> put the program
> on a host (server?) computer and set it to service mode.  
> Then I put the
> program on my own computer.  I am attempting to connect - but 
> nothing.  I am
> getting 'timed out' messages, 'can't find' messages, etc.  
> Would someone be
> willing to give me step by step (in plain english) 
> directions?  I know this
> can be a pain, teaching someone in plain step by step 
> methods, but this would
> be most appreciated.  Thank you.
> 
> Doug
> 
> You can reach me at: [EMAIL PROTECTED] - or if you have time 
> for msn messenger
> - [EMAIL PROTECTED] is my account with that.
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RE: x0rfbserver or x11vnc?

[James Weatherall]

Grant & Ssnia,

To remote the local X11 display, you can either use x0vncserver, which is a
standard X application that acts as a VNC server or, for better performance,
you can use the VNC module for X11, assuming that your X server supports
loadable modules.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Grant McDorman
> Sent: 19 September 2004 20:25
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: x0rfbserver or x11vnc?
> 
> Short answer: yes, or equivalent; there are others, including 
> xf4vnc (http://xf4vnc.sourceforge.net/). VNC 4 also includes 
> this capability, as I recall.
> 
> Depends on your platform; not all VNC :0 viewers will build 
> on all platforms (generally Linux is OK, but other Unix 
> systems may not be).
> 
> I ran across gemsvnc recently (http://www.elilabs.com/~rj/gemsvnc/),
> which is yet another varation on the same theme. KDE also 
> includes a VNC :0 viewer ('Remote Desktop Sharing', in the 
> control panel).
> 
> 
> On Sun, 19 Sep 2004 19:34:35 +0100, 
> [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> > Hi!
> > 
> > I need to remotely view and interact with real X displays. 
> I must use 
> > x0rfbserver or x11vnc?
> > 
> > Thanks for your help,
> > Ssnia
> > 
> > 
> > This message was sent using IMP, the Internet Messaging Program.
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> > 
> 
> 
> 
> --
> Grant McDorman
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RE: VNC Licensing Terms

[James Weatherall]

Tim,

I'm afraid that's not true.  It depends on the nature of the commercial
product with which VNC is to be bundled, in particular whether it is classed
as a "derived work".  It is not clear in this case whether the commercial
product is "aggregated" or "combined" with VNC (i.e. classed as "derived").

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Tim Tischler
> Sent: 21 September 2004 01:33
> To: [EMAIL PROTECTED]
> Subject: Re: VNC Licensing Terms
> 
> You'll be fine if you provide the source code, and include a 
> copy of the GPL along with the product.  You should check out 
> 
> http://www.gnu.org/licenses/gpl-faq.html#MereAggregation
> 
>   Tim Tischler
> 
> On Tue, 2004-09-21 at 04:49, stephen hawking wrote:
> > Hi,
> > 
> > I've got a query regarding GPL license. If I've to bundle RealVNC
> > (unmodified) with my commercial product, is it necessary to put my 
> > total product under GPL too? How do I go about? Can I pay RealVNC & 
> > forget about making my product code non-GPL? Isn't it enough to 
> > provide just the source of RealVNC?
> > 
> > Thanks,
> > -steve-
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RE: Experiencing a problem with VNC

[James Weatherall]

Keith,
I'm afraid that VNC in its present form is not in general suitable for use
by visually-impaired users via screen-reader techniques.  VNC uses the
Remote Framebuffer Protocol, which transfers pixel data from the server
computer to the viewer, without any actual understanding of what those
pixels mean, in most cases.  This means that the viewer has no access to the
details of text in window titles, dialog boxes, etc.
VNC Viewer will send the key events you type to the remote computer but will
not provide any feedback compatible with simple screen readers, unless they
actually try to make sense of the pixels it draws in its window.  I suspect
that most screen readers access the actual text data in window titles, etc,
rather than trying to "read" the text from the graphics.
Cheers,
Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Keith
> Sent: 21 September 2004 05:23
> To: [EMAIL PROTECTED]
> Subject: Experiencing a problem with VNC
> 
> Hllo all. My name is Keith, and I am experiencing an issue 
> with VNC. Not with
> running the server, but it is with the VNC viewer 
> application. First of all, I
> am using the VNC server under Windows 98 Second Edition. The 
> problem is, I
> happen to be a blind computer user. Because of this, I happen 
> to use a screen
> access software program to review the screen through Speech. 
> However, the
> Viewer application is completely inaccessible to the screen 
> reader, either the
> built-in viewer, or the Java viewer. Both are inaccessible 
> for anyone who uses
> a screen reader, weather  visually impaired, or blind. I 
> wanted to learn if
> there's any other possible way to connect to a VNC server, 
> rather then the
> viewer application? The reason I am asking this, is because 
> my Blind friend,
> was able to make my computer type things into other programs, 
> he managed to
> remotely open the start menu, all through the use of the 
> keyboard, and even
> made me shut down the system remotely, yesterday. He told me 
> that if I want to
> be able to remotely connect to VNC servers, I'll need to learn the VNC
> Protocol, and right my own accessible interface. But I don't 
> even know c++ or
> any programming languages. Any other suggestions? Any 
> alturnitive mothods to
> using the viewer program? As a blind user, we and the screen 
> reader relies on
> the keyboard alone for every computer operation, that a 
> sighted user would
> point and click the mous to perform. But I'm not sure within 
> the viewer window
> how to perform a remote alt+Tab, open the start menu, 
> navigate it, remotely
> through the use of the keyboard. Any suggestions/tips would 
> be very helpful.
> Regards, Keith.
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RE: "server closed connection unexpectedly"

[James Weatherall]

Matt,

Server closed connection unexpectedly

Often means things like:
- VNC was running as an application , but on a locked workstation
- Something went horribly wrong internally and the server had to close the
connection.

You can look for the actual reason by looking in the Applications event log
of the server machine for WinVNC4 errors.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Matt Schutz
> Sent: 21 September 2004 04:47
> To: [EMAIL PROTECTED]
> Subject: "server closed connection unexpectedly"
> 
> I have searched through the mailing list and none of the 
> options about this error seem to fit  my situation.
> 
> I have installed the VNC server on Win2k Professional.  The 
> client is connecting via WinXP Home.  I always got the 
> message when using the default 5900 port.  Then when I reset 
> the server to use 5901 as the port, if I connect from the 
> client using the string "192.168.0.3:5901", it gives a the 
> same error, but using "192.168.0.3" without a port gives a 
> different error, "unable to connect to host: Connection 
> refused (10061)"  Any ideas on what the problem might be?  
> I've tried uninstalling everything on the server side and 
> reinstalling, but no luck.
> 
> Thanks in advance.
> 
> Matt Schutz
> [EMAIL PROTECTED]
> 
> _
> Express yourself instantly with MSN Messenger! Download today 
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RE: Starting vnc with ipv6

[James Weatherall]

Dimitri,

IPv6 is not supported in the current release.  We do have IPv6 support for
Enterprise Edition in development.

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of dimitri berbanov
> Sent: 21 September 2004 11:32
> To: [EMAIL PROTECTED]
> Subject: Starting vnc with ipv6
> 
> Hi,
> I have downloaded recent version of vnc, and I wonder how to 
> start vnc server to listen only on ipv6 address. If it isn't 
> possible, is there a version that supports ipv6 and where can 
> I download it?
> 
> Any assistance woud be mostly appreciated.
> 
> _
> Add photos to your messages with MSN 8. Get 2 months FREE*. 
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RE: VNC viewer problem

[James Weatherall]

Philippe,

When you say "I always get a timeout error", is that at the point of
downloading the Java viewer, or at the point of trying to connect back to
the server?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Philippe Guittard
> Sent: 21 September 2004 12:18
> To: [EMAIL PROTECTED]
> Subject: VNC viewer problem
> 
>Hi all VNC Fans !
>I  have the following problem with the JAVA viewer. In 
> order to access
>my  personal  computer  from  my  office I have to use the 
> JAVA applet
>because  I'm  behind a proxy server. If I use IE 6 with 
> Microsoft Java
>machine  no problems at all. Since several weeks I have 
> started to use
>Mozilla  Firefox  browser, but with it I cannot connect to 
> my computer
>(I always get a timeout error). Moreover if I use the Sun 
> java machine
>(JRE  1.4.2.05)  with  IE6 I get the same problem. Does 
> anyone have an
>idea to solve this problem.
>Thanks.
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RE: VNC viewer problem

[James Weatherall]

Philippe,

Are you changing the contents of the Server specification box in the viewer,
when it appears?

Wez @ RealVNC Ltd.


> -Original Message-
> From: Philippe Guittard [mailto:[EMAIL PROTECTED] 
> Sent: 22 September 2004 08:04
> To: James Weatherall
> Cc: [EMAIL PROTECTED]
> Subject: Re: VNC viewer problem
> 
> I have tried to connect this morning to my personal computer 
> with IE6 (with Microsoft Java machine) with no problem. Then 
> I have open a connection with Firefox and get the following 
> error (java console output) before the server can ask me for 
> my password: 
> 
> java.net.ConnectException: Connection timed out: connect
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(Unknown Source)
> at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
> at java.net.PlainSocketImpl.connect(Unknown Source)
> at java.net.Socket.connect(Unknown Source)
> at java.net.Socket.connect(Unknown Source)
> at java.net.Socket.(Unknown Source)
> at java.net.Socket.(Unknown Source)
> at vncviewer.CConn.init(CConn.java:125)
> at vncviewer.VNCViewer.run(VNCViewer.java:146)
>     at java.lang.Thread.run(Unknown Source)
> 
> 
> 
> On 21/09/2004 16:20, James Weatherall wrote: 
> 
>   Philippe,
>   
>   When you say "I always get a timeout error", is that at 
> the point of
>   downloading the Java viewer, or at the point of trying 
> to connect back to
>   the server?
>   
>   Wez @ RealVNC Ltd.
>   
>   
> 
> 
>   -Original Message-
>   From: [EMAIL PROTECTED] 
>   [mailto:[EMAIL PROTECTED] On Behalf 
> Of Philippe Guittard
>   Sent: 21 September 2004 12:18
>   To: [EMAIL PROTECTED]
>   Subject: VNC viewer problem
>   
>  Hi all VNC Fans !
>  I  have the following problem with the JAVA 
> viewer. In 
>   order to access
>  my  personal  computer  from  my  office I 
> have to use the 
>   JAVA applet
>  because  I'm  behind a proxy server. If I 
> use IE 6 with 
>   Microsoft Java
>  machine  no problems at all. Since several 
> weeks I have 
>   started to use
>  Mozilla  Firefox  browser, but with it I 
> cannot connect to 
>   my computer
>  (I always get a timeout error). Moreover if 
> I use the Sun 
>   java machine
>  (JRE  1.4.2.05)  with  IE6 I get the same 
> problem. Does 
>   anyone have an
>  idea to solve this problem.
>  Thanks.
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RE: VNC through firewall

[James Weatherall]

Jimmy,

In general that's not advisable with the GPL release, which doesn't encrypt
network traffic.  You should either access your VNC systems via a secure
tunnel such as SSH, or look at the new VNC Enterprise Edition
(http://www.realvnc.com/products/enterprise), to be released shortly... :)

Use of Enterprise Edition through a firewall simply involves opening a port
(usually 5900 for Windows machines) in your firewall, to allow incoming
connections to the server.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Jimmy E. 
> Frederiksen - DATAJEF
> Sent: 23 September 2004 08:21
> To: [EMAIL PROTECTED]
> Subject: VNC through firewall
> 
> Somehow I can't seem to find the answer in the archives, but 
> is it possible to use VNC through a firewall?
> 
> At my work I can't get access to my computer at home because 
> of the company firewall.
> 
> Regards
> 
> Jimmy E. Frederiksen
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RE: Installation of VNC x86 Options/Switches

[James Weatherall]

Brian,

We're using InnoSetup for the installer, so the /silent and /verysilent
flags will work & will do a default (server + viewer) install.  You can then
separately apply registry settings to configure the server, if required.

Alternatively VNC Enterprise Edition
(http://www.realvnc.com/products/enterprise) will include access to the VNC
Deployment Tool, which is capable of installing & configuring VNC servers on
remote NT/2K/XP-based systems.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Brian 
> Docherty (Midas Homes)
> Sent: 23 September 2004 10:32
> To: '[EMAIL PROTECTED]'
> Subject: Installation of VNC x86 Options/Switches
> 
> Hi Everyone
> 
> I wonder if anyone knows if there are any command line 
> switches which I could use to roll out VNC, with which we 
> could specify installation options, and not worry the user 
> about clicking and entering parameters.
> 
> Any help would be appreciated.  Thanks in advance.
> 
> Regards,
> Brian
>  
> Brian Docherty, MSc
> IT Manager, Midas Homes Ltd
> t. (01626) 35
> f. (01626) 332563
>  
> DISCLAIMER: This email, together with any attachments, is for 
> the exclusive and confidential use of the addressee(s) and 
> may contain legally privileged information. Any other 
> distribution, use or reproduction without the se nder's prior 
> consent is unauthorised and strictly prohibited. If you have 
> received this email in error please notify the sender by 
> telephone, fax or email immediately and destroy the message 
> without making any copies.
> 
> 
> 
> DISCLAIMER: This email, together with any attachments, is for 
> the exclusive confidential use of the addressee(s) and may 
> contain legally privileged information.  Any other 
> distribution, use or reproduction without the sender's 
> consent is unauthorised and strictly prohibited.  If you have 
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RE: ZRLE error (space issue?)

[James Weatherall]

Scott,

The original post on the subject remains valid - the ZRLE encoder includes a
sanity check to prevent excessive resource usage by the Zlib algorithm and
unfortunately the current release tries to be a little *too* sane,
preventing very large desktops from working correctly.

If you are feeling up to the challenge of rebuilding a server from source,
the offending limit is in rfb/ZRLEEncoder.cxx and looks like:

int ZRLEEncoder::maxLen = 513 * 1024; // enough for width 2048 32-bit pixels

So you may wish to change it to:

int ZRLEEncoder::maxLen = 2049 * 1024; // enough for width 8192 32-bit
pixels

Or possibly even higher!

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Asher, Scott
> Sent: 23 September 2004 04:09
> To: [EMAIL PROTECTED]
> Subject: ZRLE error (space issue?)
> 
> While browsing the archives looking for solutions, I've seen 
> a couple of threads that boil down to a space allocation 
> problem when using ZRLE for colour encoding.  
> 
> One such thread:
> http://www.realvnc.com/pipermail/vnc-list/2004-July/046031.html
> 
> Is there any work on a fix for this (much higher default 
> setting before throttling use of this encoding)?  Running at 
> 64 colours, I'm getting this error frequently when connecting 
> to machines with multiple monitors running at 1600x1200 and 
> it's a pretty significant problem for us.
> Switching to an even lower colour setting or using a 
> different encoding aren't really great options.  If this is 
> not ever going to be changed, I'll figure something out, but 
> the thread seems to indicate that it might be changed.
> 
> Thanks,
> Scott
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RE: server closed connection unexpectedly

[James Weatherall]

The response RFB 003.003 just indicates that the machine in question is
running an old VNC server. 

How does this relate to your original problem?

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Sergio Del Pino
> Sent: 23 September 2004 23:09
> To: [EMAIL PROTECTED]
> Subject: server closed connection unexpectedly
> 
> I tried to run telnet to the machine running the vnc server 
> at port 5901 and I got RFB 003.003 instead of RFB 003.008. 
> The VNC server is running on a Win2K pro On the other hand I 
> can see a Win 2003 server running VNC Server 4 and a Win XP 
> pro running VNC Server 3.3.7, both from the same machine Win 
> XP Pro SP2 running VNC Server Service 4 and VNC Viewer 4.
> 
> Thanks in advance,
> 
> Sergio Del Pino
> Argentina
> server closed connection unexpectedly
> James Weatherall jnw "at" realvnc.com
> Thu Sep 9 10:04:00 2004
> 
>   a.. Previous message: 
> =?iso-8859-1?Q?server_closed_connection_unexpectedly?=
>   b.. Next message:
> =?iso-8859-1?Q?VNC4_Does_not_work_on_Windows_XP_but_VNC_3=2E3=
> 2E7_Works_Fine?=
>   c.. Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
> 
> --
> ---
> ---
> 
> Hi,
> 
> Assuming there isn't something fundamentally broken in your 
> Windows XP installation's TCP stack, there will be messages 
> other than "unknown network event for listener" in the 
> application log.  They will be flagged as errors.
> This also assumes that you are connecting to the correct port 
> in the first place.  Can you use telnet to check that you're 
> connecting to the right port?  (You should see "RFB 003.008")
> 
> Your assertion that "it's definitely a software problem in 
> VNC 4" is bogus.
> It's almost certainly a configuration issue, although it 
> could also be a problem with the host system.  Reminder - 
> this is software we've tested extenensively and wouldn't have 
> released if it "just didn't work"...
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: vnc-list-admin "at" realvnc.com
> > [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of vnc "at" 
> > frifra.de
> > Sent: 09 September 2004 07:22
> > To: vnc-list "at" realvnc.com
> > Subject: server closed connection unexpectedly
> >
> >
> > Hi,
> > it's NOT e firewall issue! If i deinstall VNC 4.0 and reinstall 3.3 
> > all works fine... both 3.3 and 4.0 are using Port 5900.
> > It's definitly a software problem in 4.0, but it seems to 
> noone knows 
> > about...
> >
> > Remember:
> > > At the application log i found many errors:
> > > "SocketManager: unknown
> > > network event for listener".
> > > There is no firewall on this machines, also the XP firewall is 
> > > inactive.
> >
> >
> > All previous versions worked fine, whithout of any 
> trouble... Now im 
> > trying for 3 days and nothing works!
> >
> > I don't understand, why they made a stable application such a crap 
> > (remind - it's a final, not a beatversion).
> > ___
> > 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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RE: local host vs local address

[James Weatherall]

t; > > loopback connections
> > > - VNC Server is actually listening on INADDR_ANY, but the 
> tray icon
> > contents
> > > are out of date and reflect a point in time before the network
> > interfaces
> > > had come up.  This tray icon behaviour is a known bug.  It could 
> > > cause a Service-Mode server to show "Not accepting 
> connections" or "127.0.0.1"
> > in
> > > some cases.
> > >
> > > I assume that you've tried connecting to the server in 
> spite of the 
> > > tray icon's contents and established that it's not 
> accepting connections?
> > >
> > > Cheers,
> > >
> > > Wez @ RealVNC Ltd.
> > >
> > >
> > > > In the tray, on the server icon, I can read the IP that 
> is being used.
> > > > so when run as a service it says 127.0.0.1 and my PC cannot be 
> > > > reached remotly.
> > > > and when I launch server manually it reads 192.168.0.100 and 
> > > > RealVNC works fine.
> > > > I like to use it as a service, as I never know in 
> advance when I 
> > > > need to reach my machine ...
> > > >
> > > > -Message d'origine-
> > > > De : James Weatherall [mailto:jnw "at" realvnc.com] 
> Envoyi : lundi
> > > > 13 septembre 2004 12:59 @ : 'Big Max Leo'; vnc-list "at" 
> > > > realvnc.com Objet : RE: local host vs local address,
> > > >
> > > >
> > > > Max,
> > > >
> > > > What precisely do you mean by "takes 127.0.0.1" and "takes 
> > > > 192.168.0.100"?
> > > >
> > > > Wez @ RealVNC Ltd.
> > > >
> > > >
> > > > > -Original Message-
> > > > > From: Big Max Leo [mailto:bigmax "at" bigmax.org]
> > > > > Sent: 13 September 2004 11:50
> > > > > To: 'James Weatherall'; vnc-list "at" realvnc.com
> > > > > Subject: RE : local host vs local address,
> > > > >
> > > > > It takes the right IP (192.168.0.100 for instance), 
> which is one 
> > > > > of the address I "reserved" in the routeur config to 
> assign to 
> > > > > one specific machine (associated with MAC address).
> > > > > Real VNC takes 127.0.0.1 when I run it as a service, 
> and takes 
> > > > > 192.168.0.100 when I launch it manually :-)
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > -Message d'origine-
> > > > > De : James Weatherall [mailto:jnw "at" realvnc.com] Envoyi : 
> > > > > lundi
> > > > > 13 septembre 2004 12:45 @ : 'Big Max Leo'; vnc-list "at" 
> > > > > realvnc.com Objet : RE: local host vs local address,
> > > > >
> > > > >
> > > > > Max,
> > > > >
> > > > > Can you explain precisely what you mean by "takes the 
> right IP"?
> > > > >
> > > > > Wez @ RealVNC Ltd.
> > > > >
> > > > >
> > > > > > -Original Message-
> > > > > > From: Big Max Leo [mailto:bigmax "at" bigmax.org]
> > > > > > Sent: 13 September 2004 11:32
> > > > > > To: 'James Weatherall'; vnc-list "at" realvnc.com
> > > > > > Subject: RE : local host vs local address,
> > > > > >
> > > > > > Yes, I have checked.
> > > > > > I just installed another free VNC product and I don't run
> > > > in the pb
> > > > > > : it takes the right IP no matter how you start the
> > > > server (manually
> > > >
> > > > > > or as a
> > > > > > service) as opposed to RealVNC that only takes the 
> right IP if 
> > > > > > I start the server manually for some unknown reason.
> > > > > > The problem started after the WIFI router 
> installation, I had 
> > > > > > to configure the router to differentiate my 3 
> machines to make 
> > > > > > sure I would access the right one remotly.
> > > > > > I use the router as DHCP server and reserve 3 specifics 
> > > > > > address in the range for my 3 machines, (to get the same IP 
> > > > > &g

RE: server closed connection unexpectedly

[James Weatherall]

Sergio,

Your previous mails stated that "If i deinstall VNC 4.0 and reinstall 3.3
all works fine...", from which you originally asserted that it must be a VNC
4-specific problem.  Now you are saying that the server is running VNC 3.3.
Looking at the previous mails, though, it appears that actually you didn't
write the original (and needlessly abusive) mail regarding VNC not working,
unelss you are [EMAIL PROTECTED] as well as [EMAIL PROTECTED]

Assuming that you are not the same person, and that the information below is
correct, the most likely causes of the problem you're seeing are that the
server has an unsupported pixel format, or is locked & VNC is not running as
a service.

You can enable the VNC 3 DebugMode and DebugLevel registry settings in order
to get debug output to check what is happening on the problem server.

Wez @ RealVNC Ltd. 
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Sergio Del Pino
> Sent: 24 September 2004 13:03
> To: [EMAIL PROTECTED]
> Subject: server closed connection unexpectedly
> 
> I can't access one of the machines in the office, W2k Pro, I 
> guess is running VNC Server service 3.3.7 . Appears "server 
> closed connection unexpectedly"
> after introduced the pwd for authentication. The VNC Viewer 4 
> is running on WinXP Pro SP2, and from this machine I have no 
> problem to access other WinXP Pro SP2 running VNC Server 
> Service 3.3.7 on the same office network.
> 
> Where is the problem?
> 
> Thanks in advance,
> 
> Sergio Del Pino
> 
> Argentina
> 
> 
> From: "James Weatherall" <[EMAIL PROTECTED]>
> To: "'Sergio Del Pino'" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
> Subject: RE: server closed connection unexpectedly
> Date: Fri, 24 Sep 2004 10:55:07 +0100
> Organization: RealVNC Ltd.
> 
> The response RFB 003.003 just indicates that the machine in 
> question is running an old VNC server.
> 
> How does this relate to your original problem?
> 
> Cheers,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Sergio Del Pino
> > Sent: 23 September 2004 23:09
> > To: [EMAIL PROTECTED]
> > Subject: server closed connection unexpectedly
> >
> > I tried to run telnet to the machine running the vnc server at port 
> > 5901 and I got RFB 003.003 instead of RFB 003.008.
> > The VNC server is running on a Win2K pro On the other hand 
> I can see a 
> > Win 2003 server running VNC Server 4 and a Win XP pro running VNC 
> > Server 3.3.7, both from the same machine Win XP Pro SP2 running VNC 
> > Server Service 4 and VNC Viewer 4.
> >
> > Thanks in advance,
> >
> > Sergio Del Pino
> > Argentina
> ___
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RE: Help please

[James Weatherall]

Nick,

Please try to give a more descriptive subject line in future posts -
tracking down previous posts with titles like "Help please" isn't very easy!

For your system it may be better to start by running x0vncserver as an
application within your X session, and then try connecting to that.  Once
you have established that your viewer can connect to that, you can switch
back to using the module.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Nick Bruton
> Sent: 24 September 2004 13:43
> To: [EMAIL PROTECTED]
> Subject: Re: Help please
> 
> I think I should clarify what I am trying to do, I want to be 
> able to run a vncviewer on one system and have a complete 
> mirrored screen of the remote system.
> Is this possible?
> How do I do it?
> Thanks
> 
> --
> --
> Nick Bruton  PADI 
> Divemaster #624215
> University of BristolYamaha YZF R1
> Computing Service
> Tyndall Avenue
> Bristol BS8 1UD
> Tel: 0117 9288193
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RE: Help please

[James Weatherall]

Nick, (msg re-CC'ed to list, for the list subscribers' general edification!)

Now that you've established that x0vncserver works, and thus that your
network is not the issue, we can return to the module installation.

Vnc.so should work once it's been added to the X server config file and the
X server has been restarted.  Things to check are whether you're editing the
right config file, which X server you're using, and whether the X server is
logging errors.

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: Nick Bruton [mailto:[EMAIL PROTECTED] 
> Sent: 24 September 2004 15:03
> To: James Weatherall
> Subject: RE: Help please
> 
> Wez,
> 
> Sorry bout the subject, I have got x0vncserver running and it 
> seems to work
> 
> Nick
> 
> --On Friday, September 24, 2004 14:56:26 +0100 James 
> Weatherall <[EMAIL PROTECTED]> wrote:
> 
> > Nick,
> >
> > Please try to give a more descriptive subject line in 
> future posts - 
> > tracking down previous posts with titles like "Help please" 
> isn't very 
> > easy!
> >
> > For your system it may be better to start by running 
> x0vncserver as an 
> > application within your X session, and then try connecting 
> to that.  
> > Once you have established that your viewer can connect to that, you 
> > can switch back to using the module.
> >
> > Cheers,
> >
> > Wez @ RealVNC Ltd.
> >
> >
> >> -Original Message-
> >> From: [EMAIL PROTECTED]
> >> [mailto:[EMAIL PROTECTED] On Behalf Of Nick Bruton
> >> Sent: 24 September 2004 13:43
> >> To: [EMAIL PROTECTED]
> >> Subject: Re: Help please
> >>
> >> I think I should clarify what I am trying to do, I want to 
> be able to 
> >> run a vncviewer on one system and have a complete mirrored 
> screen of 
> >> the remote system.
> >> Is this possible?
> >> How do I do it?
> >> Thanks
> >>
> >> --
> >> --
> >> Nick Bruton  PADI
> >> Divemaster #624215
> >> University of BristolYamaha YZF R1
> >> Computing Service
> >> Tyndall Avenue
> >> Bristol BS8 1UD
> >> Tel: 0117 9288193
> >> ___
> >> VNC-List mailing list
> >> [EMAIL PROTECTED]
> >> To remove yourself from the list visit:
> >> http://www.realvnc.com/mailman/listinfo/vnc-list
> >>
> >
> 
> 
> 
> --
> --
> Nick Bruton  PADI 
> Divemaster #624215
> University of BristolYamaha YZF R1
> Computing Service
> Tyndall Avenue
> Bristol BS8 1UD
> Tel: 0117 9288193
___
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RE: Help please

[James Weatherall]

Nick,

If I remember correctly, we don't log any messages of that sort from vnc.so.
It looks rather more as though the I810 and RADEON drivers have some
component within them that they happen to call "VNC"...

Which X server are you using vnc.so with?

Wez @ RealVNC Ltd.


> -Original Message-
> From: Nick Bruton [mailto:[EMAIL PROTECTED] 
> Sent: 24 September 2004 15:45
> To: James Weatherall; 'Nick Bruton'
> Cc: [EMAIL PROTECTED]
> Subject: RE: Help please
> 
> OK,
> 
> Well it loads the module and then later on it gets disabled.
> 
> On one system it loads the module and then later in XFree86.0.log
> 
> it says (II) RADEON(0): VNC disabled
> 
> on the other system it says
> (II) I810(0): VNC disabled
> 
> They both complain about the passwordFile option.
> 
> Nick
> 
> 
> 
> 
> --On Friday, September 24, 2004 15:28:11 +0100 James 
> Weatherall <[EMAIL PROTECTED]> wrote:
> 
> > Nick, (msg re-CC'ed to list, for the list subscribers' general
> > edification!)
> >
> > Now that you've established that x0vncserver works, and 
> thus that your 
> > network is not the issue, we can return to the module installation.
> >
> > Vnc.so should work once it's been added to the X server config file 
> > and the X server has been restarted.  Things to check are whether 
> > you're editing the right config file, which X server you're 
> using, and 
> > whether the X server is logging errors.
> >
> > Cheers,
> >
> > Wez @ RealVNC Ltd.
> >
> >
> >> -Original Message-
> >> From: Nick Bruton [mailto:[EMAIL PROTECTED]
> >> Sent: 24 September 2004 15:03
> >> To: James Weatherall
> >> Subject: RE: Help please
> >>
> >> Wez,
> >>
> >> Sorry bout the subject, I have got x0vncserver running and 
> it seems 
> >> to work
> >>
> >> Nick
> >>
> >> --On Friday, September 24, 2004 14:56:26 +0100 James Weatherall 
> >> <[EMAIL PROTECTED]> wrote:
> >>
> >> > Nick,
> >> >
> >> > Please try to give a more descriptive subject line in
> >> future posts -
> >> > tracking down previous posts with titles like "Help please"
> >> isn't very
> >> > easy!
> >> >
> >> > For your system it may be better to start by running
> >> x0vncserver as an
> >> > application within your X session, and then try connecting
> >> to that.
> >> > Once you have established that your viewer can connect 
> to that, you 
> >> > can switch back to using the module.
> >> >
> >> > Cheers,
> >> >
> >> > Wez @ RealVNC Ltd.
> >> >
> >> >
> >> >> -Original Message-
> >> >> From: [EMAIL PROTECTED]
> >> >> [mailto:[EMAIL PROTECTED] On Behalf Of Nick Bruton
> >> >> Sent: 24 September 2004 13:43
> >> >> To: [EMAIL PROTECTED]
> >> >> Subject: Re: Help please
> >> >>
> >> >> I think I should clarify what I am trying to do, I want to
> >> be able to
> >> >> run a vncviewer on one system and have a complete mirrored
> >> screen of
> >> >> the remote system.
> >> >> Is this possible?
> >> >> How do I do it?
> >> >> Thanks
> >> >>
> >> >> --
> >> >> --
> >> >> Nick Bruton  PADI
> >> >> Divemaster #624215
> >> >> University of Bristol
> Yamaha YZF R1
> >> >> Computing Service
> >> >> Tyndall Avenue
> >> >> Bristol BS8 1UD
> >> >> Tel: 0117 9288193
> >> >> ___
> >> >> VNC-List mailing list
> >> >> [EMAIL PROTECTED]
> >> >> To remove yourself from the list visit:
> >> >> http://www.realvnc.com/mailman/listinfo/vnc-list
> >> >>
> >> >
> >>
> >>
> >>
> >> --
> >> --
> >> Nick Bruton  PADI
> >> Divemaster #624215
> >> University of BristolYamaha YZF R1
> >> Computing Service
> >> Tyndall Avenue
> >> Bristol BS8 1UD
> >> Tel: 0117 9288193
> >>
> >
> 
> 
> 
> --
> --
> Nick Bruton  PADI 
> Divemaster #624215
> University of BristolYamaha YZF R1
> Computing Service
> Tyndall Avenue
> Bristol BS8 1UD
> Tel: 0117 9288193
___
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RE: remove popped up dos window

[James Weatherall]

Yuris,

WinVNC4.exe has the -noconsole command-line option.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Yuris
> Sent: 12 October 2004 08:21
> To: [EMAIL PROTECTED]
> Subject: remove popped up dos window
> 
> Hi,
> 
>  
> 
> I notice that when I run VNC server in both server & user 
> modes, I would see dos windows popping up. Is there any way 
> to hide those pop up windows or not to display them?
> 
>  
> 
> Thanks,
> 
> Yuris
> ___
> VNC-List mailing list
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RE: User Interaction/Authorization

[James Weatherall]

Jason,

Both of the features you describe exist in the current release.

Please read the documentation at http://www.realvnc.com/v4/winvnc.html, and
see the output from "winvnc4 --help".

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Beauford, Jason
> Sent: 12 October 2004 13:45
> To: [EMAIL PROTECTED]
> Subject: User Interaction/Authorization
> 
> CONTEXT:  REMOTE DESKTOP ADMINISTRATION IN CORPORATE ENVIRONMENT
> 
> Group,
> 
> I want to know if VIC will be providing a USER authentication 
> scheme whereby an Admin can connect to the end users remote 
> desktop and rather than connect immediately, VIC will prompt 
> the end user to allow the connection or not.  Something in 
> the form of a popup window.  Maybe in the Enterprise Edition?
> 
> Also, what about push technology?  I am thinking along the 
> lines where the end user could push the connection to the 
> Admin in the form of a "HELP DESK REQUEST" of sorts.  Not 
> unlike the the Remote Assistance feature in Windows XP but 
> more direct.
> 
> Any and all comments are greatly appreciated.
> 
> 
> Kind Regards,
> 
> 
> JMB
> ___
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RE: How to track use of VNC

[James Weatherall]

Daniel,

That depends on which version of VNC Server you are running, and what level
of access (Administrator, etc), the "nefarious" user may have had to those
machines.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: 12 October 2004 15:56
> To: [EMAIL PROTECTED]
> Subject: How to track use of VNC
> 
> We've got about 400 users.
> Only our systems department has the passwords to VNC the 
> machines, but we think someone might have gotten a hold of 
> one or two of them.
> 
> We've had a couple of users report problems with the VNC icon 
> going black, and people remoting their PCs without their permission.
> No Systems staff admit to being the ones to do it.
> 
> It might be an honest mistake, it might be something more nefarious.
> 
> Does anyone know of a way we can track what IP the request to 
> VNC came FROM?  Is there a log on the local computer we can 
> use to check?  Is there any software that scans for VNC 
> traffic on a network and logs it?
> 
> Daniel J. King
> Helpdesk and Technical Support
> HB Group Insurance
> 905-507-5602
> [EMAIL PROTECTED]
> 
> 
> 
> This message is intended for use only by the individual(s) to 
> whom it is specifically addressed above and should not be 
> read by, or delivered to any other person.  Such material may 
> contain privileged and confidential information. IF THE 
> READER OF THIS MESSAGE IS NOT THE INTENDED RECIPIENT YOU ARE 
> HEREBY NOTIFIED THAT ANY DISSEMINATION, DISTRIBUTION OR 
> COPYING OF THIS COMMUNICATION IS STRICTLY PROHIBITED. THANK 
> YOU FOR YOUR COOPERATION.
> 
> CE MESSAGE EST DESTINC SEULEMENT C LA PERSONNE DC 
> SIGNC E ET PEUT CONTENIR
> DES RENSEIGNEMENTS CONFIDENTIELS.  Sbil ne sbadresse pas C  
> vous, PRICRE DE NE PAS copier, distribuer, ni utiliser les 
> renseignements sby rapportant.
> Si vous avez reC'u cette TC   LC  COPIE par erreur, 
> veuillez tC)lC)phoner
> immC)diatement C  lbexpC)diteur pour lben aviser.  Merci de 
> votre collaboration.
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RE: STL and standard C++ library in realvnc code?

[James Weatherall]

Anon,

The STL is used in a number of places within the code.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Anon Sricharoenchai
> Sent: 13 October 2004 05:16
> To: [EMAIL PROTECTED]
> Subject: STL and standard C++ library in realvnc code?
> 
> Why does the code not use any of the standard C++ library?
> ___
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RE: Problem with RealVNC 4.0 on Guests of VMWare ESX

[James Weatherall]

Salvatore,

We have never had such a bug reported to us, I'm afraid.

Can you provide a description of the actual behaviour you are seeing?

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> [EMAIL PROTECTED]
> Sent: 13 October 2004 10:32
> To: [EMAIL PROTECTED]
> Subject: Problem with RealVNC 4.0 on Guests of VMWare ESX
> 
> Dear all
> 
> I hope that there is a VNC Developer out there that can help 
> us in solve this problem:
> 
> We have a Linux Box with VMWare ESX 1.2.1 installed on it. On 
> VMWare we created three Windows 2000 Guests and installed 
> RealVNC 4.0 on it.
> 
> Now comes the problem: After a while (a few hours), after I 
> connected on one of the VM's with the VNCViewer, the 
> Ctrl-Alt-Del Windows is disappeared! We are no more able to 
> log in to this machine through VNC nor through the VMWare 
> Remote Console (They both connect to the same console). 
> The only way is to connect with RDP/Remote Console. But even 
> through this, or through a remote shutdown command, it was no 
> more possible to cleanly reboot the server. We have to power 
> down the VM to restart it.
> 
> After communicating with VMWare about this problem we isolate 
> RealVNC 4.0 as the cause of this problem. After installing 
> TightVNC 1.2.9 or RealVNC
> 3.3.3 the systems behaves normally and we are able to connect 
> to the VM's through VNCViewer (4.0) and VMWare Remote Console.
> 
> I hope that someone can fix this problem, or at least publish 
> an advisory about this. I think it would be better to solve 
> it, isn't it?
> 
> We could build a Test VM make tests on it with 
> improved/patched VNC versions. Please contact me for this. Thanks.
> 
> Best Regards
> 
> Salvatore Cagliari
> E-Mail: [EMAIL PROTECTED]
> Bechtle IT-Systemhaus Basel
> Switzerland
> ___
> VNC-List mailing list
> [EMAIL PROTECTED]
> To remove yourself from the list visit:
> http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: Problem with RealVNC 4.0 on Guests of VMWare ESX

[James Weatherall]

Salvatore,

Are you saying that just running VNC Server 4 on the servers in question
causes the Ctrl-Alt-Del window to dissappear after a couple of hours?  Or
does there have to be a VNC connection active for that behaviour to be seen?

What are the settings that you have configured the server with?

If you are running VNC Server 4 then there will definitely be events logged
in the Applications Event Log, every time a connection is opened or closed -
are you sure you don't see any events in there?

You can enable further logging by adding the "Log" registry entry as a
REG_SZ under HKLM/Software/RealVNC/WinVNC4 and setting it to "*:file:100".
This will create a verbose log file in "C:\temp\WinVNC4.log" on the host
machine.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] 
> Sent: 13 October 2004 14:07
> To: James Weatherall
> Cc: [EMAIL PROTECTED]
> Subject: RE: Problem with RealVNC 4.0 on Guests of VMWare ESX
> 
> 
> Dear James 
> 
> It behaves exactly as described in my post. When I run VNC 
> 4.0 as Server after a few hours (~2 hours) the Ctrl-Alt-Del 
> Window disappear. This means that that when I connect to one 
> of the affected Virtual hosts the VNC Windows remain blue 
> (Default Windows Background Color). For the VMWare Remote 
> Console it's the same. 
> 
> Sorry that I don't have more informations. VMWare does not 
> find anything in his logs or in the system logs. No Events in 
> any Windows Logs on the affected Guest VM's. 
> 
> I like to repeat our offer to run tests on one dedicated VM 
> Machine. If you have a debug Version, I can install it on 
> this test VM and send you log files as you need it.
> 
> Best Regards
> 
> Salvatore Cagliari
> E-Mail: [EMAIL PROTECTED]
> Bechtle IT-Systemhaus Basel
> Switzerland 
> 
> 
> 
> 
>   "James Weatherall" <[EMAIL PROTECTED]> 
> 
> 13.10.2004 14:53 
> 
> To:Salvatore Cagliari/X/PH/[EMAIL PROTECTED], 
> <[EMAIL PROTECTED]> 
> cc: 
> Subject:RE: Problem with RealVNC 4.0 on 
> Guests of VMWare ESX 
> 
>  Category: 
> 
> 
> 
> 
> Salvatore,
> 
> We have never had such a bug reported to us, I'm afraid.
> 
> Can you provide a description of the actual behaviour you are seeing?
> 
> Cheers,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of 
> > [EMAIL PROTECTED]
> > Sent: 13 October 2004 10:32
> > To: [EMAIL PROTECTED]
> > Subject: Problem with RealVNC 4.0 on Guests of VMWare ESX
> > 
> > Dear all
> > 
> > I hope that there is a VNC Developer out there that can help us in 
> > solve this problem:
> > 
> > We have a Linux Box with VMWare ESX 1.2.1 installed on it. 
> On VMWare 
> > we created three Windows 2000 Guests and installed RealVNC 
> 4.0 on it.
> > 
> > Now comes the problem: After a while (a few hours), after I 
> connected 
> > on one of the VM's with the VNCViewer, the Ctrl-Alt-Del Windows is 
> > disappeared! We are no more able to log in to this machine 
> through VNC 
> > nor through the VMWare Remote Console (They both connect to 
> the same 
> > console).
> > The only way is to connect with RDP/Remote Console. But 
> even through 
> > this, or through a remote shutdown command, it was no more 
> possible to 
> > cleanly reboot the server. We have to power down the VM to 
> restart it.
> > 
> > After communicating with VMWare about this problem we 
> isolate RealVNC 
> > 4.0 as the cause of this problem. After installing TightVNC 
> 1.2.9 or 
> > RealVNC
> > 3.3.3 the systems behaves normally and we are able to 
> connect to the 
> > VM's through VNCViewer (4.0) and VMWare Remote Console.
> > 
> > I hope that someone can fix this problem, or at least publish an 
> > advisory about this. I think it would be better to solve 
> it, isn't it?
> > 
> > We could build a Test VM make tests on it with improved/patched VNC 
> > versions. Please contact me for this. Thanks.
> > 
> > Best Regards
> > 
> > Salvatore Cagliari
> > E-Mail: [EMAIL PROTECTED]
> > Bechtle IT-Systemhaus Basel
> > Switzerland
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
___
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RE: Problem with RealVNC 4.0 on Guests of VMWare ESX

[James Weatherall]

Salvatore,

Please see VNC 4.0 Known Bug #2 at
http://www.realvnc.com/v4/known-bugs.html, which relates to use of the
Logoff on Disconnect option and a bug in its implementation in the current
release.  This bug is fixed in the Enterprise release and will be fixed in
the next GPL release too.

The fact that your VMs sit there with a blank screen indicates that they are
incapable of shutting down cleanly, which suggests other problems with those
guest operating system installations, by the way!

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] 
> Sent: 13 October 2004 14:31
> To: James Weatherall
> Cc: [EMAIL PROTECTED]
> Subject: RE: Problem with RealVNC 4.0 on Guests of VMWare ESX
> 
> 
> OK, here's a clarification: Unlike the other versions of 
> VMWare, with VMWare ESX the Virtual Machines runs as services 
> that are not reachable or visible on the physical system 
> through the physical console. So the only way to see the 
> console of the Virtual Machines is to open a VNC Session or 
> the VMWare own Remote Console. 
> 
> We see this behaviour only when we open a VNC Session. But to 
> make this happen, I have to open a VNC Session for a first 
> time. Then, after ~2 hours, the console becomes blue. 
> 
> I set up VNC 4 with the standard setup except that I set up 
> to logoff when the last VNC Session ends. I'm unsure if I set 
> to remove wallpaper, background pattern and the effects. But 
> even when this settings are the cause, its a bug anyway. Isn't it? 
> 
> I will set up the promised VM and install VNC 4. Then 
> Activate the logging as described before. Please give me a 
> little bit time for this. 
> 
> I will let you know what I find in the Log and the events.
> 
> Thanks for your help 
> 
> Cheers
> 
> Salvatore Cagliari
> E-Mail: [EMAIL PROTECTED]
> Bechtle IT-Systemhaus Basel
> Switzerland 
> 
> 
> 
> 
>   "James Weatherall" <[EMAIL PROTECTED]> 
> 
> 13.10.2004 15:13 
> 
> To:Salvatore Cagliari/X/PH/[EMAIL PROTECTED] 
> cc:<[EMAIL PROTECTED]> 
> Subject:RE: Problem with RealVNC 4.0 on 
> Guests of VMWare ESX 
> 
>  Category: 
> 
> 
> 
> 
> Salvatore,
> 
> Are you saying that just running VNC Server 4 on the servers 
> in question causes the Ctrl-Alt-Del window to dissappear 
> after a couple of hours?  Or does there have to be a VNC 
> connection active for that behaviour to be seen?
> 
> What are the settings that you have configured the server with?
> 
> If you are running VNC Server 4 then there will definitely be 
> events logged in the Applications Event Log, every time a 
> connection is opened or closed - are you sure you don't see 
> any events in there?
> 
> You can enable further logging by adding the "Log" registry 
> entry as a REG_SZ under HKLM/Software/RealVNC/WinVNC4 and 
> setting it to "*:file:100".
> This will create a verbose log file in "C:\temp\WinVNC4.log" 
> on the host machine.
> 
> Cheers,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]
> > Sent: 13 October 2004 14:07
> > To: James Weatherall
> > Cc: [EMAIL PROTECTED]
> > Subject: RE: Problem with RealVNC 4.0 on Guests of VMWare ESX
> > 
> > 
> > Dear James
> > 
> > It behaves exactly as described in my post. When I run VNC 4.0 as 
> > Server after a few hours (~2 hours) the Ctrl-Alt-Del Window 
> disappear. 
> > This means that that when I connect to one of the affected Virtual 
> > hosts the VNC Windows remain blue (Default Windows 
> Background Color). 
> > For the VMWare Remote Console it's the same.
> > 
> > Sorry that I don't have more informations. VMWare does not find 
> > anything in his logs or in the system logs. No Events in 
> any Windows 
> > Logs on the affected Guest VM's.
> > 
> > I like to repeat our offer to run tests on one dedicated VM 
> Machine. 
> > If you have a debug Version, I can install it on this test 
> VM and send 
> > you log files as you need it.
> > 
> > Best Regards
> > 
> > Salvatore Cagliari
> > E-Mail: [EMAIL PROTECTED]
> > Bechtle IT-Systemhaus Basel
> > Switzerland
> > 
> > 
> > 
> > 
> >  "James Weatherall" <[EMAIL PROTECTED]>
> > 
> > 13.10.2004 14:53
> > 
> > To:Salvatore Cagliari/X/PH/[EMAIL PROTECTED], 
> > <[

RE: How to track use of VNC

[James Weatherall]

John & John,

TightVNC is based on the old VNC 3 codebase, which didn't log to the system
event log, so you won't get those log events if you're using TightVNC.  

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of John
> Sent: 13 October 2004 14:26
> To: Wall, John; 'John'; [EMAIL PROTECTED]
> Subject: RE: How to track use of VNC
> 
> Maybe it's because we're using TightVNC, maybe no Event Log 
> entries are made are you using RealVNC?   I haven't 
> looked at TVNC vs RVNC in well over a year maybe I should 
> look agin.
> 
> 
> 
> 
> At 09:04 AM 10/13/2004, Wall, John wrote:
> >Hi John,
> >
> >I am using XP PRO, I go via the Control Panel select Administrative 
> >Tools, select Event Viewer, Select Applications and it appears there 
> >under as Event Viewer (local) and then and entry VNC double click it 
> >and the information is in it. I never set this computer up re Event 
> >Viewer so assume it is the default mode.
> >
> >Can't help further than explained above for my XP PRO 
> laptop. It does 
> >display the incoming IP addressed when connecting and when 
> disconnecting.
> >
> >John
> >
> >-Original Message-
> >From: John [mailto:[EMAIL PROTECTED]
> >Sent: Wednesday, 13 October 2004 19:24
> >To: [EMAIL PROTECTED]
> >Subject: RE: How to track use of VNC
> >
> >Regarding John Wall's reply about XP Event Log...
> >
> >
> >Where in the Event Log?   I just searched thru one of my 
> common XP Pro
> >machines which users connect to and there's nothing 
> there I checked 
> >all three area carefully, Application, Security & System.  
> Do you mean 
> >some other .Log file someplace?
> >
> >
> >
> >--__--__--
> >
> >Message: 21
> >From: "Wall, John" <[EMAIL PROTECTED]>
> >To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
> >Subject: RE: How to track use of VNC
> >Date: Wed, 13 Oct 2004 07:46:29 +0800
> >
> >Hi Daniel,
> >
> >NT & XP have an event log that records the IP address that 
> accessed via 
> >VNC not sure about Win95 Win98
> >
> >John
> >___
> >VNC-List mailing list
> >[EMAIL PROTECTED]
> >To remove yourself from the list visit:
> >http://www.realvnc.com/mailman/listinfo/vnc-list
> ___
> VNC-List mailing list
> [EMAIL PROTECTED]
> To remove yourself from the list visit:
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RE: Problem with RealVNC 4.0 on Guests of VMWare ESX

[James Weatherall]

Salvatore,

It could be that the Logoff handling bug causes further undesirable
interactions with the host OS, causing the slow shutdown, but our tests
relating to the bug didn't show that behaviour at the time, just the reboot
behaviour.

Cheers,

Wez @ RealVNC Ltd.


> OK, Many Thanks 
> 
> I will test it. 
> It's strange that I can shutdown the VM without problems 
> pefore the installation of VNC.
> 
> Cheers 
> 
> Salvatore Cagliari
> E-Mail: [EMAIL PROTECTED]
> Bechtle IT-Systemhaus Basel
> Switzerland 
> 
> 
> 
> 
>   "James Weatherall" <[EMAIL PROTECTED]> 
> 
> 13.10.2004 15:39 
> 
> To:Salvatore Cagliari/X/PH/[EMAIL PROTECTED] 
> cc:<[EMAIL PROTECTED]> 
> Subject:RE: Problem with RealVNC 4.0 on 
> Guests of VMWare ESX 
> 
>  Category: 
> 
> 
> 
> 
> Salvatore,
> 
> Please see VNC 4.0 Known Bug #2 at
> http://www.realvnc.com/v4/known-bugs.html, which relates to 
> use of the Logoff on Disconnect option and a bug in its 
> implementation in the current release.  This bug is fixed in 
> the Enterprise release and will be fixed in the next GPL release too.
> 
> The fact that your VMs sit there with a blank screen 
> indicates that they are incapable of shutting down cleanly, 
> which suggests other problems with those guest operating 
> system installations, by the way!
> 
> Cheers,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]
> > Sent: 13 October 2004 14:31
> > To: James Weatherall
> > Cc: [EMAIL PROTECTED]
> > Subject: RE: Problem with RealVNC 4.0 on Guests of VMWare ESX
> > 
> > 
> > OK, here's a clarification: Unlike the other versions of 
> VMWare, with 
> > VMWare ESX the Virtual Machines runs as services that are not 
> > reachable or visible on the physical system through the physical 
> > console. So the only way to see the console of the Virtual 
> Machines is 
> > to open a VNC Session or the VMWare own Remote Console.
> > 
> > We see this behaviour only when we open a VNC Session. But to make 
> > this happen, I have to open a VNC Session for a first time. Then, 
> > after ~2 hours, the console becomes blue.
> > 
> > I set up VNC 4 with the standard setup except that I set up 
> to logoff 
> > when the last VNC Session ends. I'm unsure if I set to remove 
> > wallpaper, background pattern and the effects. But even when this 
> > settings are the cause, its a bug anyway. Isn't it?
> > 
> > I will set up the promised VM and install VNC 4. Then Activate the 
> > logging as described before. Please give me a little bit time for 
> > this.
> > 
> > I will let you know what I find in the Log and the events.
> > 
> > Thanks for your help
> > 
> > Cheers
> > 
> > Salvatore Cagliari
> > E-Mail: [EMAIL PROTECTED]
> > Bechtle IT-Systemhaus Basel
> > Switzerland
> > 
> > 
> > 
> > 
> >  "James Weatherall" <[EMAIL PROTECTED]>
> > 
> > 13.10.2004 15:13
> > 
> > To:Salvatore Cagliari/X/PH/[EMAIL PROTECTED] 
> > cc:<[EMAIL PROTECTED]> 
> > Subject:RE: Problem with RealVNC 4.0 on 
> > Guests of VMWare ESX
> > 
> >  Category: 
> > 
> > 
> > 
> > 
> > Salvatore,
> > 
> > Are you saying that just running VNC Server 4 on the servers in 
> > question causes the Ctrl-Alt-Del window to dissappear after 
> a couple 
> > of hours?  Or does there have to be a VNC connection active 
> for that 
> > behaviour to be seen?
> > 
> > What are the settings that you have configured the server with?
> > 
> > If you are running VNC Server 4 then there will definitely 
> be events 
> > logged in the Applications Event Log, every time a connection is 
> > opened or closed - are you sure you don't see any events in there?
> > 
> > You can enable further logging by adding the "Log" registry 
> entry as a 
> > REG_SZ under HKLM/Software/RealVNC/WinVNC4 and setting it to 
> > "*:file:100".
> > This will create a verbose log file in "C:\temp\WinVNC4.log" 
> > on the host machine.
> > 
> > Cheers,
> > 
> > Wez @ RealVNC Ltd.
> > 
> > 
> > > -Original Message-
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]
> >

RE: How to track use of VNC

[James Weatherall]

Guys,

Yes, file transfer is something we plan to support, in a future release.

Cheers,

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Wall, John
> Sent: 13 October 2004 15:06
> To: 'John'; Wall, John; [EMAIL PROTECTED]
> Subject: RE: How to track use of VNC
> 
> Hi John,
> 
> Wez has remarked in another email re another subject that vnc 
> v4 does do event logging so I guess that is the answer.
> 
> Real VNC has been good to me and I am the only IT person in 
> my particular field using it and my time is precious. I have 
> been advised to use Tight VNC however the existing Real VNC 
> has been all I have needed so far. I have been advised that 
> Tight VNC can provide file transfers which Real VNC does not.
> Whether the Real VNC team are looking at this I am not sure. 
> It doesn't particularly fuss me as I just use Windows 
> Exploring to transfer files within our intranet.
> 
> John
> 
> Ps when time permits I may look at Tight VNC
> 
> -Original Message-
> From: John [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, 13 October 2004 21:46
> To: Wall, John; [EMAIL PROTECTED]
> Subject: RE: How to track use of VNC
> 
> 
> 
> Writing to OS Event Logs is done at the application level.  
> Most M$ programs
> do it by common design.  All other applications, such as xVNC 
> have to do it
> intentionally.  
> 
> Here's simple example code for any VB application:
>Dim appLog As New System.Diagnostics.EventLog
>appLog.Source = "This Application's Name"
>appLog.WriteEntry("An entry to the Application event log.")
> 
> 
> In your RVNC 4, there might be an options panel on server 
> side with user
> settings for level (frequency) of event logging, or at least 
> I would hope
> so.  
> 
> 
> Have you also looked at TightVNC?  Maybe offer up your 
> comment of one vs the
> other?
> 
> 
> 
> At 09:42 AM 10/13/2004, Wall, John wrote:
> >John,
> >
> >I am using RealVnc V4 however I would have thought it was up to the
> >operating system i.e. XP/NT to determine if it will log an 
> event rather
> than
> >VNC triggering it.
> >
> >I don't know but logic would say the trigger would be the 
> event operating
> >system.
> >
> >Wez what do you say ??
> >
> >John
> >
> >-Original Message-
> >From: John [mailto:[EMAIL PROTECTED] 
> >Sent: Wednesday, 13 October 2004 21:26
> >To: Wall, John; 'John'; [EMAIL PROTECTED]
> >Subject: RE: How to track use of VNC
> >
> >
> >
> >Maybe it's because we're using TightVNC, maybe no Event Log 
> entries are
> >made are you using RealVNC?   I haven't looked at TVNC 
> vs RVNC in well
> >over a year maybe I should look agin.
> >
> >
> >
> >
> >At 09:04 AM 10/13/2004, Wall, John wrote:
> >>Hi John,
> >>
> >>I am using XP PRO, I go via the Control Panel select 
> Administrative Tools,
> >>select Event Viewer, Select Applications and it appears 
> there under as
> >Event
> >>Viewer (local) and then and entry VNC double click it and 
> the information
> >is
> >>in it. I never set this computer up re Event Viewer so 
> assume it is the
> >>default mode.
> >>
> >>Can't help further than explained above for my XP PRO 
> laptop. It does
> >>display the incoming IP addressed when connecting and when 
> disconnecting.
> >>
> >>John
> >>
> >>-Original Message-
> >>From: John [mailto:[EMAIL PROTECTED] 
> >>Sent: Wednesday, 13 October 2004 19:24
> >>To: [EMAIL PROTECTED]
> >>Subject: RE: How to track use of VNC
> >>
> >>Regarding John Wall's reply about XP Event Log...
> >>
> >>
> >>Where in the Event Log?   I just searched thru one of my 
> common XP Pro
> >>machines which users connect to and there's nothing 
> there I checked
> all
> >>three area carefully, Application, Security & System.  Do 
> you mean some
> >>other .Log file someplace?
> >>
> >>
> >>
> >>--__--__--
> >>
> >>Message: 21
> >>From: "Wall, John" <[EMAIL PROTECTED]>
> >>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>, 
> [EMAIL PROTECTED]
> >>Subject: RE: How to track use of VNC
> >>Date: Wed, 13 Oct 2004 07:46:29 +0800
> >>
> >>Hi Daniel,
> >>
> >>NT & XP have an event log that records the IP address that 
> accessed via
> VNC
> >>not sure about Win95 Win98
> >>
> >>John
> >>___
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> >>http://www.realvnc.com/mailman/listinfo/vnc-list 
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RE: Pocket PC versions??

[James Weatherall]

Yes, there is.

Wez @ RealVNC Ltd.


> is there any plan to make a Windows Pocket PC version of the 
> software??
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RE: safety

[James Weatherall]

> The quickest and easiest solution would probably be vnc enterprise
> which should be available soon.   (right Wez?)

Yes.  Very soon indeed. :)

Wez @ RealVNC Ltd.
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RE: server closed connection unexpectedly

[James Weatherall]

Stephane,

Are you running VNC as a service or an application?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Stiphane 
> Seignovert [FXM]
> Sent: 14 October 2004 09:45
> To: [EMAIL PROTECTED]
> Subject: server closed connection unexpectedly 
> 
> Hello,
> 
> I have a problem when trying to connect to a pc running win2k pro.
> 
> I can't access it: as soon as I type its address in VNC 
> viewer and press OK, I get the following error "server closed 
> connection unexpectedly".
> 
> The event viewer log says: Source: WINVNC4 - SocketManager: 
> unknown network event for listener.
> 
> But the address is correct and on 5 pcs, this is the only one 
> that causes problem.
> 
> Please help
> 
> Regards
> --
> Stiphane Seignovert
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RE: Problems with RealVNC and PalmVNC

[James Weatherall]

Alvaro,

You may wish to upgrade to VNC 4, both because it's easier to get debug
output from VNC Server 4, in order to diagnose the problem, and because VNC
4 supports the Protocol3.3 option, which can help with compatibility with
some poorly behaved VNC Viewers.

Wez @ RealVNC Ltd. 


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of alvaro pazos
> Sent: 14 October 2004 07:29
> To: [EMAIL PROTECTED]
> Subject: Problems with RealVNC and PalmVNC
> 
> I'm trying to connect to my home computer (realVNC) with my palm.
> Normally i cannot connect, and de palmVNC appear the next error
> message:
> 
> Opening the network...skipped
> Connecting to XX.no-ip.info:5900...
> Network connected
> VNC currentServer supports protocol RFB 003.006 PalmVNC 
> supports 003.003
> 
> read failed (Err=0x1212)
> ERROR: cannot initialize XX.no-ip.info:5900 Network 
> performance statistic:
>sent: 12 bytes
>recv: 0 Kbytes
>send speed 1200 bytes/sec
>receive speed 11 bytes/sec
> Connection closed
> 
> a couple of times i have conected, but i wasn't able to do 
> anything, and after a couple of seconds disconnect.
> 
> Any help?
> 
> Tahanks
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RE: RealVNC Bug? "Rect Too Big", "ZRLE: not enough space for first line?", client update freeze

[James Weatherall]

Max,

The ZRLE issue is a known problem with the current release, which is fixed
in VNC Enterprise Edition (http://www.realvnc.com/products/enterprise) and
will be fixed in the next GPL release.  The workaround for multi-monitor
systems is to explicitely set the server to use Hextile, by the way.

The other issue may be related, but may not be - more details would be
useful.

Cheers,

Wez @ RealVNC Ltd.


> Hi,
> 
> I use the latest version of RealVNC with a multimonitor 
> system, and I've experienced numerous problems with the 
> server, and I think they are all related to the combined size 
> of the screens: 3584 pixels across by 1024 high. When 
> connecting will full colour ZRLE the viewer shuts down 
> immediately after I put in the password, and the server event 
> log reads:
> 
> Connections: closed: 127.0.0.1::4070 (ZRLE: not enough space for first
> line?)
> 
> I have worked around this by using a lower colour depth. This 
> works some of the time, but at seemingly random points during 
> usage the client will die with "rect too big" shown in a 
> message box (this is in Auto encoding mode, by the way). If 
> this wasn't enough, again, at seemingly random intervals the 
> image in the client will freeze the image it displays - not 
> even requesting a refresh updates it to what is actually 
> shown on the server PC. The odd thing is that during this 
> time I can still interact with the server - opening 
> applications etc even though I won't be able to see that 
> happening on the client.
> 
> I would be very thankful for any suggestions as to how to 
> resolve this!
> 
> Max Bolingbroke
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RE: KVM unit that supports VNC

[James Weatherall]

Did you try this page: http://www.realvnc.com/products/KVM-via-IP/ ?

:)

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Cool Dude
> Sent: 14 October 2004 21:29
> To: [EMAIL PROTECTED]
> Subject: KVM unit that supports VNC
> 
> 
> I was searching through the archives and found some KVM units that
> support VNC but none of the sites loaded.
> 
> I would like to connect my computers like this:
> 
> my computer -> remote vnc server computer -> computers(4) connected to
> the KVM unit from the vnc sever computer
> 
> In such a way that the computers(4) connected to the KVM are
> accessible without the need of an internet connection.
> 
> What is the best KVM solution for my needs?  Is there any other better
> way to accomplish this task without a KVM unit?
> 
> Thanks.
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RE: RealVNC server and binary clipboard

[James Weatherall]

Feico,

The current VNC release supports only ASCII clipboard data.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Feico de Boer (ML)
> Sent: 14 October 2004 09:40
> To: VNC-list
> Subject: RealVNC server and binary clipboard
> 
> Hello folks,
> 
> I was looking for copy/paste of binary (graphics) information 
> between client and server but couldn't find an answer.
> 
> So the question is: Does RealVNC support binary clipboard?
> 
> Sofar I think the answer is no. And yes, it might actually be 
> usefull to have this option.
> 
> Regards,
> Feico.
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RE: VNC Server Command Line Options

[James Weatherall]

Andrew,

Re Hosts, see http://www.realvnc.com/v4/winvnc.html#5 

-register is used by the installer to install the VNC Server service.

The VNC Password is specified as a 3DES-encrypted binary value.  There are
various third-party tools for creating these values, or you can simply use
the vncconfig tool to set it.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Borland
> Sent: 14 October 2004 21:30
> To: [EMAIL PROTECTED]
> Subject: VNC Server Command Line Options
> 
> Hi,
> 
> Are the Command Line options for the winvnc4 server 
> documented anywhere?
> 
> On the website I can only find the v3 options (which are very 
> different to v4).
> 
> When I run "winvnc4 -help"  I get a fairly comprehensive 
> summary but with just a few tantalising hints as to what is 
> possible with some of the cleverer settings.
> 
> For instance:
>   What is the correct syntax for the "Hosts=" setting?
>   What are the  to the "-register" parameter?
>   What is the "obfuscation" of the password?
>   
> The more I read, the more I realise there is left to learn.
> 
> If I've managed to miss an obvious link, please point me at 
> it and then accept my apologies for failing to spot it.
> 
> Regards,  Andrew Borland (UK)
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RE: (no subject)

[James Weatherall]

Ken,

Was there anything in the Event Log on the server machine?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Ken Korshin
> Sent: 10 October 2004 17:50
> To: [EMAIL PROTECTED]
> Subject: (no subject)
> 
> I had VNC running fine and now I cannot get it to run after 
> upgrade to 4.0
> 
>  
> 
> XP Pro SP2 on server and client
> 
> All fire walls turned off
> 
> Linksys BEFW 11S4 Router
> 
> Ports forwarded 5800, 5900 on router
> 
> Removed VNC from both systems
> 
> Re installed VNC
> 
> Cannot get it to run
> 
> Error message: server closed connection unexpectedly
> 
>  
> 
> I am not a techie so if you tell me what to do please tell me how.
> 
> I really need to get VNC up and running.
> 
> Thanks!!
> 
> Ken
>   Ken Korshin
>   [EMAIL PROTECTED]
>   96190 Overseas Hwy.
>   Key Largo
>   FL, 33037
>   tel: 305 852 9221
>   mobile: 305 766 2121
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RE: RE: (no subject)

[James Weatherall]

Ken,

If you are running VNC Server 4 then there will be events logged regarding
connections being made and dropped, in the Event Log.

Are you sure you are using VNC Server 4?

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
> Sent: 15 October 2004 12:41
> To: James Weatherall
> Subject: Re: RE: (no subject)
> 
> No, nothing.
> > 
> > From: "James Weatherall" <[EMAIL PROTECTED]>
> > Date: 2004/10/15 Fri AM 07:21:18 EDT
> > To: "'Ken Korshin'" <[EMAIL PROTECTED]>,  <[EMAIL PROTECTED]>
> > Subject: RE: (no subject)
> > 
> > Ken,
> > 
> > Was there anything in the Event Log on the server machine?
> > 
> > Wez @ RealVNC Ltd.
> >  
> > 
> > > -Original Message-
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED] On Behalf Of Ken Korshin
> > > Sent: 10 October 2004 17:50
> > > To: [EMAIL PROTECTED]
> > > Subject: (no subject)
> > > 
> > > I had VNC running fine and now I cannot get it to run 
> after upgrade 
> > > to 4.0
> > > 
> > >  
> > > 
> > > XP Pro SP2 on server and client
> > > 
> > > All fire walls turned off
> > > 
> > > Linksys BEFW 11S4 Router
> > > 
> > > Ports forwarded 5800, 5900 on router
> > > 
> > > Removed VNC from both systems
> > > 
> > > Re installed VNC
> > > 
> > > Cannot get it to run
> > > 
> > > Error message: server closed connection unexpectedly
> > > 
> > >  
> > > 
> > > I am not a techie so if you tell me what to do please tell me how.
> > > 
> > > I really need to get VNC up and running.
> > > 
> > > Thanks!!
> > > 
> > > Ken
> > >   Ken Korshin
> > >   [EMAIL PROTECTED]
> > >   96190 Overseas Hwy.
> > >   Key Largo
> > >   FL, 33037
> > >   tel: 305 852 9221
> > >   mobile: 305 766 2121
> > > ___
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RE: Authentication Failure

[James Weatherall]

Michael,

Firstly, RFB 003.003 is not the standard response you'd expect from VNC
Server 4, unless it has been run with the Protocol3.3 flag set.  So it
sounds as though you have installed something other than VNC Server 4 on
their NT 4 server.

Cheers,

Wez @ RealVNC Ltd.


> Today, I had our Europe office install the VNC server on 
> their Windows NT 4.0 server and set the password.  We have a 
> VPN between locations.  I started the viewer on my Windows XP 
> Pro SP1 workstation, entered the server ip and I was prompted 
> for the password.
> 
> I entered the password and received 'authentication failure' 
> from the VNC viewer.
> 
> In the archives, someone said to try telneting to the server 
> with port 5900.
> I did that and I received the header information RFB 003.003. 
>  I had the Europe office use all the defaults during the 
> installation of the VNC server just as I did here in the U.S.
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RE: Zooming (scaling) in RealVNC 4

[James Weatherall]

Rami,

The scaling support in VNC Viewer 3.3 was experimental (it showed up some
serious bugs in certain display drivers that could cause machines to blue
screen) and was only ever available for Windows.

VNC Viewer 4.0 has never had scaling as a feature, because it is a new
code-base with no code in common with the old VNC 3.3 system.

We have recently developed full scaling support, which is currently
available in VNC Viewer Enterprise Edition
(http://www.realvnc.com/products/enterprise).

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Levy Rami-ERL005
> Sent: 16 October 2004 16:00
> To: '[EMAIL PROTECTED]'
> Subject: Zooming (scaling) in RealVNC 4
> 
> Hello,
> 
> I've been reading the archives and found some mention of 
> zooming/scaling, and how it was "experimental" in the Windows 
> version. I have 3.3 on Windows and that functionality does 
> exist. When I downloaded 4.0 I could not find that feature at 
> all - on the Windows version or the Linux version. What I'm 
> really looking for is the functionality on Linux. Anyone know 
> what happened to that feature and why it was removed from 4.0?
> 
> Thanks
> Rami
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RE: possible security bug in the Windows Server

[James Weatherall]

Rasmus,

The example you give does not have the behaviour you describe.

It is the case that the classic VNC Authentication method only considers the
first eight characters of the password, though, so that 12345678 would be
considered the same as 12345678test, for example.

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Rasmus Riber
> Sent: 17 October 2004 12:18
> To: [EMAIL PROTECTED]
> Subject: possible security bug in the Windows Server
> 
> Hey
> 
> i just began using RealVNC
> 
> my client is a Windows XP SP1
> 
> the server is a Windows XP SP1
> 
> 
> the problem is this:
> 
> when i punch in the password whitch is 123456 i can login but 
> if i puch 123456test i get in anyway!
> could this be a security bug in some way
> 
> best geards
> Rasmus Riber
> 
> http://irc.linux.dk
> www.linuxfromscratch.dk
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RE: Prompt local user to accept Incoming connections like feature.

[James Weatherall]

Hasani,

What do you mean "I don't want it through the checkbox"??

Wez @ RealVNC Ltd.
 

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of hasani
> Sent: 28 September 2004 05:51
> To: [EMAIL PROTECTED]
> Subject: Prompt local user to accept Incoming connections 
> like feature.
> 
> Hi,
> I have just started using winvnc. I have a vnc server and 
> client connect to it. I would like to have a feature like
> 
> Prompt local user to accept Incoming connections in 
> Authentication tab of settings.
> 
> as soon as some client connects i know that and i accept it 
> but i don't want it through the check box is there some other 
> way of doing so.
> 
> Thanks in advance.
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RE: Just Showing the Desktop

[James Weatherall]

> The following is clear to me. Same would apply to the person 
> usingt the viewer?
> Please help to understand: the viewer would open up a way to 
> and from my interlocutor's PC, correct?

No.  The viewer is a viewer.  The server is a server.  The server serves a
desktop to the viewer, and accepts input from the viewer.  The viewer views
the server and sends input to it.

Wez @ RealVNC Ltd.
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RE: Just Showing the Desktop

[James Weatherall]

Matthias,

VNC Enterprise Edition for Windows is licensed on a per-server basis.
Enterprise Viewers can be used to connect to those servers without
additional license fees.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Matthias Fischer
> Sent: 28 September 2004 19:09
> To: [EMAIL PROTECTED]
> Cc: Angelo Sarto; James Weatherall
> Subject: RE: Just Showing the Desktop
> 
> Enterprise VNC has a modest license cost; the reason why I 
> said that I couldn't accept licensing of the Viewer is linked 
> to the fact that the scenario I need to use the tool in 
> implies an indefinite number of changing interlocutors, to 
> whom I will be rather extraneous. No chance of running after 
> them to have them remove a licensed copy of the Viewer from 
> their computers...
> 
> Good night,
> Matthias
> 
>  -Original Message-
>  From: Angelo Sarto [mailto:[EMAIL PROTECTED]  
> Sent: Tuesday, September 28, 2004 7:28 PM  To: Matthias 
> Fischer  Subject: Re: Just Showing the Desktop
> realvnc is free (server and viewer) but enterprise I dont  
> really know  if you are interested in using high 
> encryption stuff then thats the  way to go i would think.
> 
>  otherwise realvnc works flawlessly and the viewer runs on 
>  pretty much  any computer.
> 
>  Angelo
>  >
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RE: Request: RealVNC no display mode

[James Weatherall]

Feico,

Which version of VNC Server are you using?  VNC 4 already includes some code
to reduce resource consumption in the case where no updates are ever
requested, but further optimisation is possible.

We have plans to release a hooking driver as an optional add-on for VNC
Server.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Feico de Boer (ML)
> Sent: 30 September 2004 13:34
> To: VNC-list
> Subject: Request: RealVNC no display mode
> 
> Hello folks,
> 
> I'm exploring the possibility of a 'no display mode' 
> connection option and would like to ask input from the 
> developers on this.
> 
> The reason for all of this. I use Win2VNC extensively to 
> control my laptop, Win2VNC acts as a remote keyboard/mouse 
> using the VNC server as an extension cord. Occasionally I 
> want also to use the remote display functionality. I don't 
> want to have different services running for this as it only 
> takes up resources.
> 
> However, due to my 2304x1024x24 desktop the VNC server eats 
> 10 MB that I think is used as screenbuffer. As I'm short on 
> memory in general I really could use that extra ten meg.
> 
> Apart from this, any plans to implement mirror display 
> drivers (or just usage of it) for Windows in the (near) future?
> 
> Regards,
> Feico.
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RE: VNC 4.0 Registry entries

[James Weatherall]

Gustavo,

The VNC Server Properties dialog is only accessible to Administrators under
VNC 4, so there is no separate VNC option to disable the menu item.

Wez @ RealVNC Ltd.

> - Original Message -
> From: "Gustavo Aguiar" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, September 27, 2004 3:56 PM
> Subject: VNC 4.0 Registry entries
> 
> 
> > Hi Please,
> >
> > I would like to know if does anybody knows the registry entries to 
> > disable VNC Server options like version 3, for example.
> >
> > Regards,
> > Gustavo
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RE: Request: RealVNC no display mode

[James Weatherall]

Feico,

Understood.  The version you are using includes one optimisation for
Win2VNC-like clients, which is why the resource consumption appears to be
around half of when a normal viewer is connection.

Your assessment of the cause of the resource consumption is correct - VNC
Server must keep both a buffer to blit the physical display into, and a
comparison buffer.  The comparison buffer is optimised to only exist if at
least one update request has been received since there were last no clients
connected.

Your assessment of accounting for when to release the blit buffer is
incorrect - but hey, 1 out of 2 isn't bad! :)  Accounting for release of the
buffer is actually simpler than that and the hard bit is actually handling
"lazy" allocation of the blit buffer in the first place.

That level of optimisation hasn't been a priority for us because
Win2VNC/x2vnc etc are relatively obscure tools & because desktop systems
tend to have huge amounts of memory at their disposal.  (A typical XP system
seems to take about 140Mb just for a single user logged on with no other
programs running, for example!).  If a simple & safe solution becomes
apparent then we'll certainly consider including it.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: Feico de Boer (ML) [mailto:[EMAIL PROTECTED] 
> Sent: 30 September 2004 14:53
> To: James Weatherall
> Cc: 'VNC-list'
> Subject: Re: Request: RealVNC no display mode
> 
> James Weatherall wrote:
> 
> > Which version of VNC Server are you using?  
> 
> I'm using version 4.00..0026 as it reports itself. It is 
> the version that was send by you with the Win2VNC logon fix 
> if you remember.
> 
> In idle mode procexp (Sysinternals.com utility) reports a 
> memory consumption of 1 MB, connecting to the instance memory 
> jumps up to 10 MB. Of that an approximate 7 MB can be 
> accounted for by looking at the desktop size (2304x1024x24 = 7 MB).
> 
>  > VNC 4 already includes some code
> > to reduce resource consumption in the case where no updates 
> are ever 
> > requested, but further optimisation is possible.
> 
> True, if I connect to the server with the vncviewer, memory 
> usage jumps up to 20 MB. Still, 10 MB seems to me a pretty 
> big overhead for a few new class instances.
> 
> It looks to me (from the outside, don't know about the code) 
> that there is a global buffer allocated to bitblit the screen 
> into. Then if updates are requested, a second buffer is 
> allocated to determine the differences.
> 
> What (IMHO) should happend is that the first buffer should 
> only be allocated after the first update request saving the 
> memory in case no requests are made. However, if you had 
> multiple connections, it gets a bit harder to determine the 
> release of that first buffer. Keeping a update request 
> counter/flag per connection can help you there to determine 
> the neccessity of the buffer. (Just my 2 cents, might be 
> completely wrong here. ;-)
> 
> > We have plans to release a hooking driver as an optional add-on for 
> > VNC Server.
> 
> That would be great.
> 
> Regards,
> Feico.
> 
> >>-Original Message-
> >>From: [EMAIL PROTECTED]
> >>[mailto:[EMAIL PROTECTED] On Behalf Of Feico de Boer (ML)
> >>Sent: 30 September 2004 13:34
> >>To: VNC-list
> >>Subject: Request: RealVNC no display mode
> >>
> >>Hello folks,
> >>
> >>I'm exploring the possibility of a 'no display mode' 
> >>connection option and would like to ask input from the 
> developers on 
> >>this.
> >>
> >>The reason for all of this. I use Win2VNC extensively to control my 
> >>laptop, Win2VNC acts as a remote keyboard/mouse using the 
> VNC server 
> >>as an extension cord. Occasionally I want also to use the remote 
> >>display functionality. I don't want to have different 
> services running 
> >>for this as it only takes up resources.
> >>
> >>However, due to my 2304x1024x24 desktop the VNC server eats 
> 10 MB that 
> >>I think is used as screenbuffer. As I'm short on memory in 
> general I 
> >>really could use that extra ten meg.
> >>
> >>Apart from this, any plans to implement mirror display drivers (or 
> >>just usage of it) for Windows in the (near) future?
> >>
> >>Regards,
> >>Feico.
> >>___
> >>VNC-List mailing list
> >>[EMAIL PROTECTED]
> >>To remove yourself from the list visit:
> >>http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: VNC 4.0 Registry entries

[James Weatherall]

Chris,

Your statement is misleading.  TightVNC and other projects based on VNC 3.3
have a number of settings accessible only via registry entries, termed
"Advanced Settings".  

VNC 4 either provides settings through the GUI interfaces, or eliminates
them because they are no longer relevant.  Only a couple of very low level
parameters remain purely registry-controlled.

The setting to which Gustavo refers is one of the no-longer-relevant ones.

Cheers,

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Chris Goodwin
> Sent: 30 September 2004 14:29
> To: Gustavo Aguiar; [EMAIL PROTECTED]
> Subject: Re: VNC 4.0 Registry entries
> 
> Correct, as noted in the TightVNC documentation and others, 
> WinVNC4 does not support the "extra" settings that v3 did.
> 
> TightVNC does support them through adding them to the v3 
> settings directory in the registry.
> 
> Chris Goodwin
> Sandware Business Systems
> 
> We manage technology so you can manage your business.
> http://www.sandware.net
> voice: 910.639.3055
> - Original Message -
> From: "Gustavo Aguiar" <[EMAIL PROTECTED]>
> To: "Chris Goodwin" <[EMAIL PROTECTED]>; 
> <[EMAIL PROTECTED]>
> Sent: Thursday, September 30, 2004 8:52 AM
> Subject: RE: VNC 4.0 Registry entries
> 
> 
> Hi Chris,
> 
> The thing is, I've already checked my regedit, but in version 
> 4, like version 3, there're no EXTRA entries, I mean, to lock 
> down the options you must create some keys. In version 3 I 
> could find them in VNC documentation
> (http://www.realvnc.com/winvnc.html) but it seems to not work 
> with version 4.
> 
> I appreciate any help.
> 
> Regards,
> Gustavo
> 
> 
> -Original Message-
> From: Chris Goodwin [mailto:[EMAIL PROTECTED]
> Sent: terga-feira, 28 de setembro de 2004 09:53
> To: Gustavo Aguiar; [EMAIL PROTECTED]
> Subject: Re: VNC 4.0 Registry entries
> 
> Gustavo,
> 
> You can find the entries on your system by running Regedit 
> ("Start\Run\regedit"), pressing F3 ("find"), and searching 
> for VNC. This should locate the keys you're looking for 
> regardless of your flavor of Windows. The keys/values are 
> pretty self-explainatory.
> 
> Good luck!
> 
> Chris Goodwin
> Sandware Business Systems
> 
> We manage technology so you can manage your business.
> http://www.sandware.net
> voice: 910.639.3055
> - Original Message -
> From: "Gustavo Aguiar" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, September 27, 2004 3:56 PM
> Subject: VNC 4.0 Registry entries
> 
> 
> > Hi Please,
> >
> > I would like to know if does anybody knows the registry entries to 
> > disable VNC Server options like version 3, for example.
> >
> > Regards,
> > Gustavo
> > ___
> > VNC-List mailing list
> > [EMAIL PROTECTED]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
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RE: Server Closed Connection Unexpectedly - the solution AND new problem

[James Weatherall]

Tony,

> >From this I'm assuming that the viewer is only used to 
> communicate in "User Mode" and that a browser is only used to 
> communicate in "Service Mode". Sorry to all those experts who 
> are now falling about laughing but it wasn't obvious to me 
> and I still don't know if this is correct. But it works for 
> me as they say.

This is incorrect.  The Java and native VNC Viewers are interchangeable.
The most common cause of issues with the Java Viewer is the use of a
separate port for serving the Java Viewer from the one used for the VNC
protocol.

> OK moving on !!! So I now had connection (for a shot time at 
> any rate). The problem was that having run the viewer on my 
> PC it was causing my Laptop - running the server (in User 
> Mode :o) ) - to "blue screen" and re-boot. Not exactly a 
> practical solution to remote access.

This shouldn't happen.  Which platform is your laptop running?  Basically,
there is no way that any application should be able to blue-screen your
machine unless the operating system or drivers are broken in some way.

> Firewalls - I had my gateway firewall enabled and the XP and 
> Norton Internet Security Firewalls disabled on both the 
> laptop and PC. I have reactivated the NIS with no adverse 
> effect and for those who have come across it I have NOT had 
> to remove port 80 from the list of scanned ports in NIS - 
> although this may be an issue when I connect through the 
> Internet and my gateway.

Port 80 is not used by the VNC protocol, by default, nor to server the Java
Viewer.

> Window XP issues - I have disable "Fast User Switching" but 
> thinks still work with it enabled provided I log out of each 
> user - I have multiple users on each machine - so in effect I 
> don't use the facility.

Yes.  We tend to recommend turning it off entirely purely so that you don't
try to connect in to your XP box and find it won't work because somebody
else has FUSed it, or that you don't connect in and forget about FUS and
lock yourself out.

Related to that, an XP compatibility module is in development.

Cheers,

Wez @ RealVNC Ltd.
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RE: SelectObject to CompatbleDC failed

[James Weatherall]

Cesar,

The most common cause of this error is that you've used Remote Desktop or
Fast User Switching previous with the machine.

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Cesar Dela Paz
> Sent: 02 October 2004 12:45
> To: [EMAIL PROTECTED]
> Subject: SelectObject to CompatbleDC failed
> 
> 
> Hello,
>  
> Anybody experience the error "SelectObject to CompatbleDC failed."? I
> can't connect to my server who has a private and public IP. The public
> IP points to the private IP. I can connect thru Remote 
> Desktop. Even web
> publishing is working well over the internet.
>  
>  
>  
>  
> Any help is aprpeciated.
>  
> Regards,
>  
> Cesar
> 
> [demime 1.01d removed an attachment of type image/jpeg which 
> had a name of Outlook.jpg]
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RE: dxguid.dll error HELP

[James Weatherall]

Dxguid.dll is nothing to do with VNC Server.  Where does the error message
appear?

Wez @ RealVNC Ltd.


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of <|BdD|> Clan
> Sent: 03 October 2004 14:54
> To: [EMAIL PROTECTED]
> Subject: dxguid.dll error HELP
> 
> I have a gaming server that uses vnc for direct access. It 
> recently crashed, and since then whenever I try to access it 
> via VNC I get the following error message: "The Login User 
> Interface DLL dxguid.dll failed to load. Contact your system 
> administrator to replace the DLL or to restore the original 
> DLL." That pops up in a little box in the remote window, and 
> I cannot get any further. 
>  
> I've looked high and low for answers to this, but am unable 
> to find any info about this error message. Would simply 
> re-installing VNC solve the issue? Or is there any other way 
> around it, so that I might be able to remotely access the 
> server again? 
> 
> All help would be appreciated. Many thanks. 
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