Specifications

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IGEL Technology GmbH IGEL Zero RFX 5.02.100
12.4. Environment Variables
Environment variables allow you to use dynamic parameter content for a number of session types, e.g. so
as not to have to enter ICA or RDP servers for every session. Within the IGEL Setup, the variables can be
found under: System → Firmware Configuration → Environment Variables
Pre-defined variables can also be supplied and distributed via the IGEL UMS. Additional defined variables
can only be used locally and may be overwritten by a UMS configuration.
The following session parameters can be configured though variables:
• ICA - User name (ICA sessions→ [Session name] → Login)
• ICA - Citrix Server or Published Application (ICA sessions → [Session name] -> Server)
• XenApp - User name (Citrix XenApp/Program Neighborhood → Login)
• RDP - User name (RDP sessions → [Session name] → Login)
• RDP - Server (RDP sessions → [Session name] → Server)
How to use environment variables
Enable environment variables under Allow Variable Substitution in Sessions. 1.
Specify the variable name and content (e.g. Variable Name = SERVER NAME | Value = test server) 2.
Enter the variable name in the session parameter field. The name is preceded by a $ sign (e.g. 3.
$SERVERNAME for the server for an RDP session)
In the case of RDP and ICA sessions, the setting is implemented after being saved and is entered into the
session file. With XenApp, the setting is not implemented until a session starts and is running.
12.5. Features
Using this list of available services, you can quickly enable or disable firmware components such as
Powerterm, Mplayer etc. If a service was disabled, the associated session type will no longer be available
when the system is restarted. Existing sessions will not be shown but will not be deleted either. A disabled
session type will not be updated during a firmware update. You should therefore disable unused services in
order to speed up update processes.