What is VNC

Quoted from:
http://www.realvnc.com/what.html
http://www.uk.research.att.com/archive/vnc/index.html

VNC stands for Virtual Network Computing. It is remote control software which allows you to view and interact with one computer (the "server") using a simple program (the "viewer") on another computer anywhere on the Internet. The two computers don't even have to be the same type, so for example you can use VNC to view an office Linux machine on your Windows PC at home. VNC is freely and publicly available and is in widespread active use by millions throughout industry, academia and privately.

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It is, in essence, a remote display system which allows you to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.

• No state is stored at the viewer.
• It is small and simple.
• It is truly platform-independent.
• It is sharable.
• It is free! You can download it, use it, and redistribute it under the terms of the GNU Public License.

See also: How can I use VNC?

VNC server

OSXvnc

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OSXvnc is a full featured VNC server providing remote access to the GUI, keyboard and mouse using any VNC client.
Some problems with APE installed, see the FAQ for answers to frequently asked questions.

Download

Share My Desktop (SMD) is a simple little wrapper application created for OSXvnc in AppleScript Studio. SMD makes initiating a VNC server very simple just click a button!

SMD was developed as a tool to offer better support from Tech Support staff. SMD can be installed on client systems, so if the client needs assistance, they can call the Tech Support staff, initiate the VNC server, and give the Tech Support staff the connection information. When the Tech Support staff is able to share the client's screen, they can SHOW the client what they need to do to fix a problem, rather than try to guide them by voice alone.

Instructions:

1. To initiate the VNC server just click on the "Start sharing" button. The server will start in the background (you will see no evidence that it is running except for the feedback in SMD's window), and your connection information (IP address, port, and password) will be displayed. This information is also copied to the clipboard if you would like to paste it into an email.
2. To connect to the VNC server from another machine, you will need a VNC client application such as VNC Dimension, VNC Thing or Chicken of the VNC. Visit their web pages for more information about VNC clients. If you have a fast network, try running the VNC client without compression for better performance (uses more bandwidth, though).

VNC viewers

That's right OSXvnc is only a server, there are already a number of good VNC Clients available for OS X, we recommend these:
 Chicken Of The VNC

Download

Remote control another computer or a local X11 server over the Virtual Network Computing (VNC) protocol with VNCDimension. This Mac OS X Cocoa VNC client application supports multiple simultaneous VNC sessions and the saving of session preferences.