User Guide

232 Chapter 12 Using the Application Framework
Using Server Variables
Server variables are associated with a single ColdFusion Server. They are available to
all applications that run on the server. Use server variables for data that must be
accessed across clients and applications.
Server variables do not time out, but are lost when the server shuts down. You
cannot delete a Server variable. Therefore, you should limit the amount of data you
store in Sever variables.
Server variables are stored on a single server. As a result, you should not use Server
variables if you use ColdFusion on a server cluster.
ColdFusion provides the following standard read-only Server variables:
Variable Description
Server.ColdFusion.ProductName The name of the product, that is, ColdFusion
Server
Server.ColdFusion.ProductVersion The version number for the server that is running,
such as 5,0,0
Server.ColdFusion.ProductLevel The server product level, such as Enterprise
Server.ColdFusion.SerialNumber The serial number assigned to this server
installation
Server.ColdFusion.Locales The locales, such as English (US) and Spanish
(Mexican), supported by the server
Server.OS.Name The name of the operating system, such as
Windows NT
Server.OS.AdditionalInformation Additional information provided by the operating
system, such as the Service Pack number
Server.OS.Version The version number of the operating system,
such as 4.0
Server.OS.BuildNumber The specific operating system build, such as
1381