Thanks Miro,
for the detailed description of your workaround. I'm sorry to say but we
have decided to use Remotelyanywhere from 3amlabs.com. If you look at the
feature List below it supports all our requirements in only one product. OK
it is a little bit slower, than VNC but it works. After all this testing we
had just the decision between no access (or with your workaround) and full
access with many useful http-views about the customer system.

Thanks again for all your help!
 Petra

Remote Control
   Screen Resolution On The Fly
   Color Depth Optimization
   Zoom
   Full Screen Ability
   Automatic Clipboard Transfer
   Remote-To-Local Printing

File Transfer
   Supports Networked Drives
   Folder Merge
   Folder Synchronization

Layered Security
   IP Filtering
   IP Address Lockout
   SSL
   Detailed Logging
   RSA SecurID Support
   Can use existing SSL certificates

Server Functions
   FTP Server
   Port Forwarding
   Telnet / SSH Connections

Computer Management
   File Manager
   User Manager
   Active Directory support
   Event Viewer
   Manage Services
   Manage Processes
   Manage Drivers
   Registry Editor
   Command Prompt / Telnet
   Reboot Manager

Computer Settings
   Environmental Variables
   Virtual Memory
   Time
   Automatic Logon
   Shared Resources
   Automatic Priorities

Scheduling & Alerts
   System Monitoring
   Email Alerts
   Task Scheduler
   Scripting
   Pre-compiled script library

Performance Monitoring
   CPU, Memory & Disk Space
   Drive & Partition Info
   Open TCP/IP Ports
   Network Info
   PCI Info
   Open Files
   Registry Keys In Use
   DLLs In Use
   Installed applications inventory

General Features
   Help Desk Chat
   Dynamic IP Support
   ActiveX
   Host screen blanking
   Host screen recording to AVI file
   Fast User Switching Support
   Display Basic System Info

Configuration
   Color Schemes
   Listening Port
   HTTP Tunneling
   Centralized Syslog
   Custom HTML Pages
   ODBC support for logging & scripting
   Remote install and license management

Networking
   Host Monitoring
   Enterprise Configuration
   Replicate Configuration
   Network & Subnet Scans
   Remote Install and Upgrade
   Ping
   Wake on LAN
   Multiple screen support

PDA Remote Control
   WiFi, LAN, GPRS or TCP/IP connection
   Standard PDA interface
   SSL Secure


> --- Urspr|ngliche Nachricht ---
> Von: "Luptak, Miroslav" <[EMAIL PROTECTED]>
> An: <[email protected]>
> Betreff: RE: Java realVNC Viewer via HTTP-Proxy possible?
> Datum: Sat, 6 Aug 2005 01:58:50 +0200
> 
> Hello, Petra.
> 
> How about using a software for tunneling TCP connections over http
> proxy, e.g. http://www.taiyo.co.jp/~gotoh/ssh/connect.html?
> 
> Let's suppose you currently try to connect to customer1.dyndns.org:5800.
> I also suppose that you are connecting to Enterprise Edition VNC Server,
> serving both VNC and HTTP on port 5800.
> 
> Download http://www.taiyo.co.jp/~gotoh/ssh/connect.exe and try the
> following example for MS Windows:
> 
> Step 1: Execute "connect.exe -p 5800 -H your_http_proxy:proxy_port
> customer1.dyndns.org 5800"
> 
> Step 2: Point your web browser to http://localhost:5800, or try
> "vncviewer localhost::5800".
> 
> The solution will also work with VNC Free Edition, but requires
> different setup on the router, that forwards port 5800. In this case,
> you should also consider running VNC on top of SSH for better security.
> 
> Best regards,
> 
> Miro
> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> > Sent: Friday, August 05, 2005 14:43
> > To: [email protected]
> > Cc: [EMAIL PROTECTED]
> > Subject: RE: Java realVNC Viewer via HTTP-Proxy possible?
> > 
> > Thanks Wez,
> > I know the restriction of the VNC Free Edition that was the 
> > reason why we
> > give the Enterprise Edition 4.1.7 a try. But without HTTP 
> > Tunneling it seams
> > to be that we have to go back and search for another 
> > solution. Any Ideas ?
> > 
> > How far are the plans with the HTTP tunneling? Reading the article of
> > http://www.ergotech.com/misc/VNCProxy.html it seams to be 
> > quit easy (not for
> > me at all).
> > 
> > Petra
> > 
> > 
> > > --- Urspr|ngliche Nachricht ---
> > > Von: "James Weatherall" <[EMAIL PROTECTED]>
> > > An: <[EMAIL PROTECTED]>, <[email protected]>
> > > Betreff: RE: Java realVNC Viewer via HTTP-Proxy possible?
> > > Datum: Fri, 5 Aug 2005 11:00:23 +0100
> > > 
> > > Petra,
> > > 
> > > VNC Free Edition cannot serve both the VNC and HTTP 
> > protocols on the same
> > > port number - this feature is currently available only in 
> > the Enterprise
> > > and
> > > Personal editions.
> > > 
> > > The VNC Viewer for Java requires that it be possible to 
> > make a *direct*
> > > connection (i.e. not via a proxy) back to the server, on 
> > the specified RFB
> > > port.  Support for HTTP "tunnelling" may be added in future 
> > but is not
> > > currently supported.
> > > 
> > > Regards,
> > > 
> > > Wez @ RealVNC Ltd.
> > > 
> > > 
> > > > -----Original Message-----
> > > > From: [EMAIL PROTECTED] 
> > > > [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> > > > Sent: 05 August 2005 09:25
> > > > To: [email protected]
> > > > Subject: Java realVNC Viewer via HTTP-Proxy possible?
> > > > 
> > > > Hi everybody,
> > > > we test currently the remote administration of our customer 
> > > > PCs from our
> > > > internal LAN and have still problems. Our security decided to 
> > > > use only one
> > > > port 5800 for both Java an native viewer. To be flexible we 
> > > > decided to use
> > > > first the Web-Interface of the realVNC Enterprise Version, 
> > > > anyway with one
> > > > port for java and native viewer we are able to change 
> > this anytime.
> > > > The communication starts on our internal clients, goes to the 
> > > > http-proxy and
> > > > firewall to the internet. With dyndns we find the router, 
> > > > that forwards the
> > > > port 5800 and come to the realVNC Server to administrate the 
> > > > customer PC.
> > > > Our security is the opinion that there is no need to install 
> > > > any firewall
> > > > rule for this connection because of the HTTP-Proxy.
> > > > 
> > > > The current result is that we are able to connect to the 
> > > > customer PC an see
> > > > the Website with realVNC Viewer Enterprise Edition 4.1.7 and 
> > > > load the Java
> > > > applet. After entering the connection details we receive no 
> > > > answer and get
> > > > the following exception:
> > > >        java.net.NoRouteToHostException: Operation timed out
> > > >         at java/net/PlainSocketImpl.socketConnect
> > > >         at java/net/PlainSocketImpl.doConnect
> > > >         at java/net/PlainSocketImpl.connectToAddress
> > > >         at java/net/PlainSocketImpl.connect
> > > >         at java/net/Socket.<init>
> > > >         at java/net/Socket.<init>
> > > >         at vncviewer/CConn.init
> > > >         at vncviewer/VNCViewer.run
> > > >         at java/lang/Thread.run
> > > > 
> > > > Means this that the realVNC Viewer is not able to use the 
> > > > HTTP-Proxy and we
> > > > need a additional firewall rule?
> > > > Any suggestions what we can change not to be bound to the 
> > > > firewall rule that
> > > > our security currently doesn't want?
> > > > 
> > > > Thanks for help!
> > > >  Petra
> > > > 
> > > > -- 
> > > > 5 GB Mailbox, 50 FreeSMS http://www.gmx.net/de/go/promail
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> > > > 
> > > 
> > 
> > -- 
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