nodelocked

Nodelocked, or node-locked, is a software licensing model in which a license is tied to a single computing node or device rather than to a user or a shared pool of licenses. The license is bound to the machine on which the software runs, and the product is usually authorized to operate only on that specific node.

Implementation typically involves binding the license to hardware identifiers or a combination of identifiers, such as the motherboard serial number, CPU ID, network MAC address, or a hardware dongle. The resulting fingerprint is checked at activation or startup. Some licenses require online verification with a licensing server, while others support offline activation and periodic revalidation.

Advantages of node-locked licenses include simplicity and predictability: they do not require a license server or network connectivity, making them convenient for standalone workstations and environments with restricted connectivity. They can also offer strong assurance that the software runs on a designated machine, which can be beneficial for compliance in certain industries.

Disadvantages center on flexibility and mobility. Moving the software to a different machine usually requires a license transfer or reactivation, which can involve vendor support and administrative steps. Hardware upgrades or virtualization can complicate licensing, sometimes necessitating a new license or re-binding. In contrast to floating licenses, node-locked licenses do not support simultaneous use on multiple machines beyond what the license terms permit.

Industries that use node-locked licenses include engineering, design, and other professional software suites where single-user, single-machine deployments are common.