| AddRecordUpdate | Add record action |
| DeleteAllRecordsUpdate | Delete all records action |
| DeleteRecordUpdate | Delete record action |
| DnsUpdateMessage | Dynamic DNS update message Defined in RFC 2136. |
| NameIsInUsePrequisite | Prequisite, that a name exists |
| NameIsNotInUsePrequisite | Prequisite, that a name does not exist |
| PrequisiteBase | Base class for prequisites of dynamic dns updates |
| RecordExistsValueDependantPrequisite | Prequisite, that a record with given values exists |
| RecordExistsValueIndependantPrequisite | Prequisite, that a record with given values exists |
| RecordNotExistsPrequisite | Prequisite, that a record does not exist |
| UpdateBase | Base update action of dynamic dns update |