ArcGIS Server is the backbone of your ArcGIS Enterprise deployment, providing the heavy lifting for web services and geoprocessing. Whether you are setting up a fresh site or upgrading to the latest version, getting the right files is your first step toward building a robust GIS infrastructure.

: Verify your hardware and OS meet the Windows or Linux requirements.

You cannot run ArcGIS Server without a valid license file ( .prvc or .ecp ). You should generate this from the same portal before you begin the installation.

: If you are a developer building custom SOEs or SOIs, don't forget to also download the ArcGIS Enterprise SDK from the Developer Tools section in My Esri. 4. Next Steps

: Choose your specific server roles, such as ArcGIS GIS Server Advanced or Standard.