User`s manual

Installing and Using the Axel-VNCviewer 39
6.5 - RUNNING SOFTWARE WITHOUT DISPLAY MANAGER
OR DESKTOP
The display manager and desktop processes allow a user to be authenticated
(display manager) and run utilities or software through menus or icons
(desktop).
The process groups involved by these are mechanisms:
Software
Desktop: KDE, GNOME, XFCE...
Display manager: XDM, GDM, XDM...
Xvnc
This environment (login + desktop) is both safe and easy to use, but requires a
large amount of memory. Below we discuss the option of running an application
direct from Xvnc, without the Desktop or Display manager being loaded. This
has two benefits, less memory is used, and often the user will not require a
Linux/Unix desktop, preferring to launch direct into their application.
-
Example 1
: only one application is run on the graphical terminal (for
example Netscape). Once the terminal is powered-on, Nescape is
automatically run. No Unix/Linux authentication is needed. Furthermore,
the terminal will only run Netscape.
-
Example 2
: the Unix/Linux box is used as a front-end to access a
Windows box. Once the terminal is powered-on, an ICA client or a RDP
client is automatically run. A Windows "login" screen is automatically
displayed. The Unix/Linux box is invisible.
For these configurations, the following architectures can be used:
Software
Window manager: twm or Software
Xvnc Xvnc
Note
: depending of the application, a window manager (twm) may be required.
For example Netscape needs a window manager (several windows can be