1.4. Changes in Version 4.50

This section describes the changes since the SGD version 4.41 release.

1.4.1. Option to Resume Printing from My Desktop

If a user logs in to My Desktop and they have paused print jobs, a message now displays in the browser window which enables the user to resume printing.

1.4.2. Changes to the tarantella security enable Command

The tarantella security enable command now includes a --firewalltraversal option. This option enables you to choose whether or not to enable firewall traversal when you secure an SGD server.

If you do not specify this option, firewall traversal is enabled by default.

Note

SGD servers configured for firewall traversal cannot be used with the SGD Gateway.

The following example secures the SGD server using the specified SSL certificate and private key. Firewall traversal is not enabled for the SGD server.

# tarantella security enable \
--certfile /opt/certs/cert \
--keyfile /opt/keys/key \
--firewalltraversal off

See the Oracle Secure Global Desktop 4.6 Administration Guide for more detailed information about this command option.

1.4.3. Web Services Changes

The ITarantellaWebtopSession web service includes a new operation, endMultiViewSession.

The endMultiViewSession operation ends a user session and logs out the user. All views of the user session are ended.

Note

A view of a user session is created when you join an existing user session. For example, when you log in to the Administration Console and the SGD webtop from the same client device.

You use the endMultiViewSession operation as follows:

endMultiViewSession(sessionCookie);

where sessionCookie is the user session cookie.

1.4.4. Kiosk Mode Escape Attribute

For Windows applications and X applications running in kiosk mode, the Kiosk Mode Escape (--allowkioskescape) attribute for enabling a pull-down header is now configurable using the Administration Console. The attribute is available on the Presentation tab for the application object.

In previous releases, this attribute was only configurable from the command line.

1.4.5. Support for Evince Document Viewer

Evince Document Viewer is now supported for PDF printing on Linux client platforms.

1.4.6. New -remoteaudio Option For SGD Terminal Services Client

In this release, a new option (-remoteaudio) has been introduced for the SGD Terminal Services Client. The SGD Terminal Services Client, also known as ttatsc, is a client program that handles the connection between the SGD server and a Windows Terminal Server.

The -remoteaudio option configures whether audio is sent from the terminal server. Using this option has the same effect as the “Leave at remote computer” sound setting for a Microsoft Windows Remote Desktop connection.

For example, to leave audio at the remote server for a Windows XP desktop session, configure the Arguments for Protocol (--protoargs) attribute of the Windows application object as follows.

-console -remoteaudio
Note

The -console option is not required if the application server platform supports at least RDP version 6.

1.4.7. Administration Console Configuration Parameter for DNS Lookups

In this release, a new deployment descriptor parameter has been introduced to configure the class of DNS lookups used by the Administration Console.

By default, SGD uses a query class of ANY for DNS lookups. Some firewall configurations might block this class of DNS lookups. This can lead to problems, for example when configuring Active Directory authentication using the Administration Console.

To configure the Administration Console to use a query class of IN for all DNS lookups, edit the deployment descriptor for the Administration Console web application. The deployment descriptor is the following file: /opt/tarantella/webserver/tomcat/version/sgdadmin/WEB-INF/web.xml

In this file, set the sgd.naming.dns.in_class_only parameter to true.

<context-param>
    <param-name>sgd.naming.dns.in_class_only</param-name>
    <param-value>true</param-value>
</context-param> 

Restart the SGD server to enable any changes you make to the web.xml file.