2.1 Overview

The Harlequin License Server daemon, hqn_lsd, provides secure network licensing services for any number of application products. Together with its administration utility, hqn_lsa, it allows flexible but simple centralized control over the use of licensed applications throughout a network.

Note: Remember that hqn_lsd comes in platform-specific versions and you must append the correct prefix for your platform to the name hqn_lsd in order to invoke the program. The three programs are hqn_lsd-irix5, hqn_lsd-sparc-solaris and hqn_lsd-sparc-sunos4. The same suffix rule applies to hqn_lsa.

The daemon itself is licensed to run on one or more specific host machines at any given site. Where multiple hosts are specified this constitutes a server domain. Any host within a server domain can be configured as the active license server, while the rest provide backup services in case of failure of the current server.

Product licenses are provided in human-readable permit files and can be individually configured to various licensing policies by Harlequin or, optionally, by the system manager at the client site.

Product licenses are locked to a particular server domain, that is, only daemons within that domain will serve licenses for the product (the product itself can of course be run anywhere within the network depending on its policy configuration).