5.0

Table 1-2. Global Settings for Client Sessions and Connections (Continued)
Setting Description
Display a pre-login message Displays a disclaimer or another message to View Client users when
they log in.
Type your information or instructions in the text box in the Global
Settings dialog window.
To display no message, leave the text box blank.
Display warning before forced logoff Displays a warning message when users are forced to log off because a
scheduled or immediate update such as a desktop-refresh operation is
about to start. This setting also determines how long to wait after the
warning is shown before the user is logged off.
Check the box to display a warning message.
Type the number of minutes to wait after the warning is displayed and
before logging off the user. The default is five minutes.
Type your warning message. You can use the default message:
Your desktop is scheduled for an important update and
will be restarted in 5 minutes. Please save any unsaved
work now.
Message Security Mode for View Components
You can set the level of security for communications between View components. This setting determines
whether to sign and verify JMS messages that are passed between View Manager components. Enabling this
setting prevents control messages that did not come from an authorized source from being processed.
In addition to signing and verifying messages, a best practice is to use IPSec to encrypt messages between View
Connection Sever instances, and between View Connection Server instances and security servers.
If any component in your View environment predates View Manager 3.0, signing and verification cannot take
place.
Table 1-3 shows the options you can select to configure the message security level. To set an option, select it
from the Message security mode list in the Global Settings dialog window.
Table 1-3. Message Security Mode Options
Option Description
Disabled Message security mode is disabled.
Mixed Message security mode is enabled but not enforced.
You can use this mode to detect components in your View environment that predate
View Manager 3.0. The log files generated by View Connection Server contain references
to these components.
Enabled Message security mode is enabled. Unsigned messages are rejected by View components.
NOTE View components that predate View Manager 3.0 are not allowed to communicate
with other View components
Message security mode is supported in View Manager 3.0 and later. If you change the message security mode
from Disabled or Mixed to Enabled, you cannot launch a desktop with a View Agent from Virtual Desktop
Manager version 2.1 or earlier. If you then change the message security mode from Enabled to Mixed or
Disabled, the desktop still fails to launch. To launch a desktop after you change the message security mode
from Enabled to Mixed or Disabled, you must restart the desktop.
If you plan to change an active View environment from Disabled to Enabled, or from Enabled to Disabled,
change to Mixed mode for a short time before you make the final change. For example, if your current mode
is Disabled, change to Mixed mode for one day, then change to Enabled. In Mixed mode, signatures are
attached to messages but not verified, which allows the change of message mode to propagate through the
environment.
Chapter 1 Configuring View Connection Server
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