Interactive mode allows the user to update servers with information about various hosts and domains.
Non-interactive mode allows for batch updates of zones. In the interactive mode, the user is expected to provide the update data in the class section name ttl type rdata format against each promot, with each field separated by a space. A return at with no data assumes the end of input and all update entries are the nameserver is updated in one atomic operation. In the non-interactive mode, the user is expected to provide the update data in a file. Data in the file is in the form of rows and columns.