Environmental Variables (Internet Toolkit)

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LabVIEW 2009 Internet Toolkit Help

Edition Date: June 2009

Part Number: 370014D-01

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When the G Web Server executes a CGI application, it sends information using environmental variables.

Note The Internet Toolkit includes the G Web Server for backward compatibility. National Instruments recommends you use the LabVIEW Web Server to run VIs on the Web.

The Internet Toolkit supports the following environmental variables.

Environmental Variable Name	Description
GATEWAY_INTERFACE	Version of the interface, currently CGI/1.1.
SERVER_SOFTWARE	Name and version of the G Web Server.
SERVER_NAME	Name of the computer running the G Web Server.
SERVER_PORT	TCP port at which the server listens for requests.
DOCUMENT_ROOT	Root directory of the server documents, in UNIX format.
REMOTE_HOST	Domain name or IP address of the remote system the client uses to connect.
REMOTE_ADDR	IP address of the remote system from which the client connects.
SCRIPT_NAME	Virtual path to the CGI application.
REQUEST_METHOD	Method by which you invoke the CGI application, either GET or POST.
SERVER_PROTOCOL	Protocol over which the client communicates with the server, currently HTTP/1.0.
HTTP_REFERER	URL of the document that contains the link to invoke the CGI application.
HTTP_USER_AGENT	Browser software that the remote client uses.
HTTP_ACCEPT	List of MIME-like types that the browser can read and accept.
QUERY_STRING	URL-encoded parameters the server sends to the CGI application.
REMOTE_USER	Client username.
REMOTE_IDENT	Client user password.