Authorization specifies the network resources to which users have access when they log on to NetScaler Gateway. The default setting for authorization is to deny access to all network resources. Citrix recommends using the default global setting and then creating authorization policies to define the network resources users can access.
You configure authorization on NetScaler Gateway by using an authorization policy and expressions. After you create an authorization policy, you can bind it to the users or groups that you configured on the appliance.