VNC comes in two parts, a VNC server and a VNC viewer. As the names indicate, the server is the host. The viewer, or master, can also be started in listen mode to accept connections initiated by a server. VNC also runs as a service under Windows, and in the absence of a viewer, a host can be remotely controlled via a Web browser.
Tridia has made VNC installation a breeze under Windows, Linux and Unix (AIX,
HP-UX and Solaris). VNC on Linux usually runs on the display you specify. For
example, we used vncserver :1 so that the Linux computer accepted connections on
our default display 1. You may also modify the ~/.vnc/xstartup file to customize
the windows manager and display.
VNC lacks a utility to scan the network for hosts advertising remote-control
availability, but it did not take us long to find a utility called VNC Admin
Console 1.0.21 (www.mast-computer.de). VNC Admin let us specify a range of IP
addresses to scan for VNC servers.
Performance under Linux is much better than in a Windows environment. For
example, under Windows, we scrolled down a couple of pages in a word document on
a host and noticed a slow, choppy screen refresh. Under Linux, the same action
proved to be fast and smooth.
TridiaVNC Pro adds some import features for enterprises and supports
authentication using LDAP, NTLM and NDS. It also adds a Java-based console that
lets you scan for PCs running the VNC server and encryption for the data stream.
Finally, it provides a deployment utility and facility to maintain central
configurations and updates. But it lacks file transfer and text/voice chats.