Once you have completed the License Manager installation, you can use the ArcGIS License Server Administrator to authorize licenses for the License Manager. On UNIX and Linux, the default installation location is $HOME/arcgis/licensemanager. Using ArcGIS License Manager 2021.0 as an example, the Windows default installation location is C:\Program Files\ArcGIS\LicenseManager. The ArcGIS License Manager provides you with the ability to choose where you want to install the License Manager. To install the License Manager, do the following: How to install the ArcGIS License Manager
Prior to installation, review the ArcGIS License Manager system requirements information located in the License Manager system requirements.Obtaining software authorization numbers.How to install the ArcGIS License Manager.