A Naming Policy is a collection of rules that controls the names that may be assigned to DNS resource records. Naming policies can be used to enforce a naming convention and to prevent restricted words from being used in resource record names.
A Naming policy value is an individual part of a resource record name, such as a specific character, an incremental number, a number or text entered by the user, or a value selected from the predefined list.
A Naming restriction is a list of words that can't be used as part of a resource record name. Use naming restrictions to prevent reserved or undesirable words from being used in a resource record name.