2 The License Server Daemon

2.3 Product permits

Permits for application products determine the use of that application at any particular client site. Permits are human-readable text files with embedded lock-key strings. A lock-key string is a setting that determines how the license can be used, as described in Section 2.3.1 on page 10. Permits can be altered only if the correct lock key-string is provided. Permit files can be obtained from Harlequin upon purchase of MLWorks.

Each permit contains information about:

: 1. The product version.
: 2. The licensing policy associated with the product.
: 3. The number and types of licenses available.
: 4. Start and expiry dates of the permit.
: 5. Data specific to the application. For example, features that are enabled by the permit, or extra security checks.
: 6. If node-locked licenses are specified, details of hosts to which the product is locked.

Two basic types of license are provided: floating and node-locked licenses. If ten floating licenses are specified in a product permit then up to ten instances of the product may be run simultaneously anywhere on the network (assuming access to the current license server for the associated server domain). Node-locked licenses allow the product to be run only on certain hosts. These hosts may be specified in the product permit or, if the permit allows it, they may be configured by your systems administrator. Depending on the policy settings for the permit, floating licenses may be converted into node-locked licenses according to your requirements.

2.3.1 - Policies
2.3.2 - Versioning
2.3.3 - Logging

MLWorks Guide to the License Server - 17 JAN 1997

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