Technical Notes

The following operating systems, components, and virtualization products are supported by Reflection X Advantage 2.0:

With Reflection X Advantage, you can share your sessions with other session users, enabling them to see your X desktop and applications. You can also join sessions that other users have made available for sharing. You can even configure a session so that another session user can take control of it.

If you're connecting over a low bandwidth or high latency connection, the Reflection X patent-pending compression technology optimizes performance by caching and compressing X protocol, and by eliminating redundant round-trips for certain types of X protocol.

The Secure Shell protocol provides a secure alternative to Telnet and other unsecured protocols commonly used to connect to X Windows hosts. Secure Shell connections require both server and user authentication, and all communications pass between hosts over an encrypted communication channel. New Reflection X client sessions are configured to use Secure Shell by default, and X Manager also includes tools for managing host and user keys. FIPS 140-2 validated cryptography ensures that the data encryption in Reflection X Advantage meets the strict standards of the U.S. Federal Government.

Reflection X Advantage offers support for X11 extensions including RENDER, DAMAGE, and XFIXES, which provide anti-aliasing and alpha-blending capabilities required by modern X applications.

Client applications with dimensions that extend into negative display coordinates can be fully displayed instead of being truncated.

You can copy selected definitions, which contain configuration information, from the Reflection X Advantage settings database to an .rxd definitions file. The .rxd definitions file can be read and imported by X Manager or X Manager for Domains on any platform, provided that the product version number for both the importing and exporting application is the same.

Reflection X Advantage provides a collection of TrueType fonts for applications that support the advanced font scaling capabilities offered by the TrueType format.

The Definition Trashcan provides temporary storage for definitions that you chose to delete. Items in the Trashcan remain there until you permanently delete them from the Reflection X Advantage settings database, or until you undelete and restore them to their original location.

Reflection X Advantage supports a variety of international locations. The installer automatically detects the operating system locale setting and configures the product to use the keyboard that matches that setting.

The Reflection X Advantage documentation is fully localized in English, French, German, and Japanese.

Reflection X Advantage migrates settings from previous Reflection X versions (v. 13 or 14) and from Hummingbird Exceed products. The first time you start Reflection X Manager or Reflection X Manager for Domains, your local settings are migrated automatically, and you are prompted to import the settings. You can choose to import the settings later using the Reflection X Advantage import utility.

You can now set up, monitor, and manage Reflection X Advantage domains that provide pre-configured public definitions used to access X hosts and clients.

As a Reflection X Advantage user, you can suspend, or "leave" a session with an X client instead of terminating it. When you rejoin your session, either at work or from home, your X client application is immediately available. As a supplement to this feature, Reflection X Advantage also provides session persistence. When you enable either of the two most advanced Session persistence options, Remote or Remote with fault tolerance, your session is held in memory on network servers and remains immediately available—even if your workstation loses power.

Load balancing is one of the benefits of running distributed sessions. In a distributed session environment, Reflection X Advantage is installed on more than one computer, thus creating multiple server nodes. When a user initiates a session, the session is run on the least-loaded server node.

Leverage your current authentication process to provide Reflection X Advantage domain authentication. Reflection X Advantage supports multiple user directory implementations: Windows, PAM (Pluggable Authentication Modules), LDAP (Lightweight Directory Access Protocol), and Reflection X Internal.

The default Reflection X Advantage authentication method depends on the operating system of the computer on which you installed the domain controller. If it is installed on a Windows computer, Windows authentication is used. If it is installed on a non-Windows computer, PAM authentication is used.

Java 6 does not support IPv6 on Windows Vista or XP. Java does support IPv6 on UNIX/Linux/Mac. This problem is documented in Sun's bug database at http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6230761. Support for IPv6 on Windows Vista (but not XP) has already been added to Java 7, but there are no plans by Sun to port this back to Java 6. (See http://mail.openjdk.java.net/pipermail/nio-discuss/2008-May/000002.html.)

For sessions initiated with XDMCP, the multiple window mode option "Show clients on my desktop" is not supported. When XDMCP is employed, all clients run in a single window with a display that appears similar to the standard display of an X terminal.

Scenario: This situation may occur if you install Reflection X Advantage, and then run the installer again (for example, to install and additional piece of Reflection X Advantage software). If you then try to uninstall Reflection X Advantage, the hang may occur.

Solution: To resolve this issue, manually remove Reflection X Advantage to complete the uninstall: