Engineer from Télécom Paris
Ph.D Thesis from UPMC

Network & Security IT - MI
Check news about my company

Hidden VNC

Hidden VNC server without tray icon

Download VNC : vnc-4_1_2-x86_win32.exe
Download patched winvnc4.exe : winvnc4.exe
Download patched wm_hooks.dll : wm_hooks.dll
Author of this patch : Alexandre Fenyo (clickhere@fenyo.net)
Platform : Windows XP
Installation : Download the three files above (vnc self-extracting distribution and two patched files). First install the VNC server as a service started at boot time. Then configure it. Finally, replace the files winvnc4.exe and wm_hooks.dll by the patched ones, in the installation directory. Restart the computer.
Documentation : The RealVNC tray icon is designed to help the user know when somebody is sniffing his display : it changes from white to black background. This patch for RealVNC 4 server allows you to install a hidden RealVNC server : the users will not see the RealVNC tray icon.

The following screen capture shows the tray icons area before applying the patch :

After having applied the patch, my desktop looks like this :

Top Articles:

ImageElectronic design: driving a 60A relay with a micro-controller
Use this device to drive a 60 Ampere relay in order to power on/off dozens of computers at once.

Image"new_station" patch for hostapd
Improve 802.1X authentication on wired IEEE 802 media, with this patch for hostapd.

Imageusbdrive.exe
Copy, manipulate and erase raw data on your usb flash drive. Essential to really get privacy with your files.

ImageHidden VNC server
This patch for WinVNC 4 allows you to install a hidden VNC server : no more tray icon.

ImageRaccorder son réseau d'entreprise à l'Internet
A free book about networks. First published by Eyrolles in 1997, and under terms of Creative Commons in 2006.
© A. Fenyo - F. Le Guern - S. Tardieu

IP phone to analog phone interface circuit
At work, people usually do not get an analog phone line anymore since numeric or IP phones appeared. See how to connect your old analog device (modem, wireless DECT phone, Minitel) only using your IP phone to get the network access: read this.

Very low cost 20MHz signal generator for ham radio HF power amplifiers testing
Learn how to make a 20MHz HF signal generator using a few simple discrete analog components. Moreover, see how a 33 years old Tektronix oscilloscope gives better results than a numeric one bought recently. The whole story is here.

Split tunneling with Cisco
Enabling split tunneling with Cisco IPsec VPN Linux client software is always possible: read this.

Modelling IEEE Spanning Tree protocols using an UML Class Diagram
To really understand the dependencies between the many Spanning Tree protocols, I wrote an UML class diagram describing their relationships here.

Motorized camera controlled by the telephone
This project demonstrates how to drive a camera from the telephone line, any details here.

External Links:

ImageMy Former Web Site
Since 04/26/01, I maintain a web site named www.fenyo.net. Since I made many updates recently, click here to access the original content, where old informations are kept. The photo is also from 2001 :-)

ImageAgnes' Web Site
Agnes, my wife, used to maintain a web server but she doesn't anymore. Thus, this pointer is disabled. However, you may contact her on LinkedIn.

ImageCanardou's Web Site
Canardou has always been for me a friend that really matters, helping me in every situation. According to informations currently available, Canardou could be affected by the H5N1 virus. So, for a few weeks, Public Health Bird Regulations have made me forbid Canardou to walk away from our appartement. Feel free to take news about him from his personal home page.

Private Links:

ImageMail for nuts
Authorized users at domain fenyo.net can read/send mails by means of this cute Squirrel (a friend of Canardou ?).