Glossary

This glossary provides terms and definitions for IBM Common Licensing software and products.

The following cross-references are used in this glossary:
  • See refers you from a nonpreferred term to the preferred term or from an abbreviation to the spelled-out form.
  • See also refers you to a related or contrasting term.

For other terms and definitions, see the IBM Terminology website (opens in new window).

D

daemon

Background processes that run on the license server. The daemons administer the check-in and check-out of licenses for each feature of each application that uses FlexNet.

demo license

A node-locked license that works on any computer. A demo license is typically valid for a maximum of 30 days for evaluation or diagnostic purposes.

F

floating license

A floating license system allows users on a network to check out individual license from a shared set of licenses. Floating license keys contain the hostname and host ID of the IBM License Key Server. the license manager daemon and vendor daemon must run on the license server specified by the hostnamename and host ID in the license key. When a user exits an application, all licenses used during that session are returned to the pool of available licenses.

H

host ID

A number that uniquely identifies a computer. The host ID is obtained from different sources within a computer, depending on the operating system.

host name

The name assigned to the computer by the system administrator. The host can contain characters and numbers. For example: Watson or ibm200

L

license

A legal agreement that authorizes the use of proprietary information including, but not limited to, copyrighted or patented information.

license file

A text file named license.dat. The file includes the following information:
  • Server names and host IDs
  • Vendor names and paths to vendor daemon
  • Features and package information

license key

An authorization that regulates the use of software licensed programs. Software license keys must be installed on the computer when software is upgraded or moved, the hardware processor group is changed, additional license usage is added, or new software that requires license keys is purchased. Each FEATURE/INCREMENT line in the license file is a license key for a feature or a package. A license key specifies the number of licenses that are available for a feature or package. The license key is based on data that is specific to IBM Rational.

license manager daemon: lmgrd

The lmgrd daemon handles the initial contact with the client application program and then passes the connection to the vendor daemon. This daemon also starts and restarts the vendor daemon.

license model

A licensing model consists of an application that needs a license, and a license file that contains the license information.

license options file

Administrators use the license options file to control the operating parameters of FlexNet licensing. Users are identified by their username , host name, display, IP address, or PROJECT.

license server

The computer on which the license manager daemon and the vendor daemon run. Users with node-locked licenses do not require a license server.

N

node-locked license

A node-locked license key is for use on one computer and is tied to that computer. You do not need to run a license server if you are using a node-locked license.

P

permanent license key

A license key that IBM issues when clients purchase an application that requires such a key.

product activation kit

A permanent license for a product and the application for installing the license.

T

token-based licensing

The token based license model means that you can buy a certain number of Token licenses. If you use a Rational® tool that checks out a FEATURE that is token-based, the FEATURE line in the license file specifies the number of Tokens that are checked out. Token-based licenses can only be used with floating licenses. They cannot be used for node-locked licenses. For more details about Token-based licensing, contact your local IBM marketing representative.

trial license

A license key that provides clients access to an application for a specified time for product evaluation purposes.

V

vendor daemon: rational or telelogic

A process that permits and tracks the number of licenses that are used. Each application that uses FlexNet has its own vendor daemon.  The rational and telelogic daemons communicate through TCP/IP. As the format of the traffic is independent of the computer, the license server and the computer running the IBM Rational application that connects to the IBM Rational License Server can be on different platforms and operating systems.