BIND DLZ; description
[BIND Dynamically Loadable Zones -- concluded on 2005]BIND DLZ (Dynamically Loadable Zones) allows zones to be added and removed from BIND 9 without restarting/ reloading/ reconfiguring the server. BIND can continue to operate and serve DNS data while that data is modified.
The goals of the BIND DLZ project are:
- Allow BIND zone and record data to be stored in a database.
- Allow adding / removing / modifying zones and records without interrupting BIND's normal operation.
- Have changes required to support this capability be merged into BIND and not maintained as a separate patch.
- Develop production level drivers for a variety of databases.
The DLZ Project is broken down into two parts:
- Phase 1 made changes to BIND 9's existing code to support a new database interface (called DLZ), and also provided a driver (for the PostgreSQL database) using this new interface. The new interface allows BIND to query DLZ drivers and determine if it is authoritative for a zone.
- Phase 2 continues with the development of additional DLZ drivers to support more database backends. Phase 2 will provide MySQL, File System, Berkeley DB, ODBC and LDAP drivers. With such a variety of drivers available DLZ can be configured and optimized to meet almost any need. Phase 2 will be completed by a full round of performance testing for each of the DLZ drivers.