Before you can deploy Citrix NetScaler Gateway to support user connections, the appliance must be properly licensed.
Important: Citrix recommends that you retain a local copy of all license files you receive. When you save a backup copy of the configuration file, all uploaded licenses files are included in the backup. If you need to reinstall NetScaler Gateway appliance software and do not have a backup of the configuration, you will need the original license files.
Before installing licenses on NetScaler Gateway, set the host name of the appliance and then restart NetScaler Gateway. You use the Setup Wizard to configure the host name. When you generate the Universal license for NetScaler Gateway, the host name is used in the license.