Documentation-Related Enhancements and Changes

1. Additional documentation regarding the /etc/sysconfig/vncservers file — Due to time constraints, the following information was not available prior to the Official Red Hat Linux Reference Guide's print date.

   The /etc/sysconfig/vncservers file configures how the Virtual Network Computing (VNC) server starts up. VNC is a remote display system which allows you to view a desktop environment not only on the machine where it is running but across different networks (from a LAN to the Internet) and using a wide variety of machine architectures.

   It may contain the following:

   VNCSERVERS=<value>, where <value> is set to something like 1:fred, to indicate that a VNC server should be started for user fred on display :1. User fred must have set a VNC password using vncpasswd before attempting to connect to the remote VNC server.

   Note that when you use a VNC server, your communication with it is unencrypted, and so it should not be used on an untrusted network. For specific instructions concerning the use of SSH to secure the VNC communication, please read the information found at http://www.uk.research.att.com/vnc/sshvnc.html. To find out more about SSH, please refer to the Official Red Hat Linux Reference and Customization Guides.