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6.9 SDT SSH Tunnel for VNC
With SDT and Virtual Network Computing (VNC), Users and Administrators can securely access and
control Windows 98/NT/2000/XP/2003, Linux, Macintosh, Solaris, and UNIX computers. There’s a range
of popular free and commercial VNC software available (UltraVNC, RealVNC, TightVNC). To set up a
secure VNC connection, install and configure the VNC Server software on the computer the user will
access, then install and configure the VNC Viewer software on the Viewer PC.
6.9.1 Install and configure the VNC Server on the computer to be accessed
Virtual Network Computing (VNC) software enables users to remotely access computers running Linux,
Macintosh, Solaris, UNIX, all versions of Windows, and most other operating systems.
A. For Microsoft Windows servers (and clients):
Windows does not include VNC software, so you will need to download, install, and activate a third
party VNC Server software package:
RealVNC http://www.realvnc.com is fully cross-platform, so a desktop
running on a Linux machine may be displayed on a Windows PC, on a Solaris
machine, or on any number of other architectures. There is a Windows
server, allowing you to view the desktop of a remote Windows machine on
any of these platforms using exactly the same viewer. RealVNC was founded
by members of the AT&T team who originally developed VNC.
TightVNC http://www.tightvnc.com is an enhanced version of VNC. It has
added features such as file transfer, performance improvements, and read-
only password support. They have just recently included a video drive much
like UltraVNC. TightVNC is still free, cross-
platform (Windows Unix, and
Linux), and compatible with the standard (Real) VNC.
UltraVNC http://ultravnc.com is easy to use, fast, and free VNC software that
has pioneered and perfected features that the other flavors have
consistently refused or been very slow to implement for cross platform and
minimalist reasons. UltraVNC runs under Windows operating systems (95,
98, Me, NT4, 2000, XP, 2003). Download UltraVNC from
Sourceforge's
UltraVNC file list.
B. For Linux servers (and clients):
Most Linux distributions now include VNC Servers and Viewers and they generally can be
launched from the (Gnome/KDE etc) front end; for example, with Red Hat Enterprise Linux 4
there’s VNC Server software and a choice of Viewer client software, and to launch:
Select the Remote Desktop entry in the Main Menu -> Preferences menu.
Click the Allow other users… checkbox to allow remote users to view and control your
desktop.
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