This page contains some information about deprecated backends.

DB2 Backend

Note: This backend was removed in version 3.5.0.

Native Yes
Master No
Slave No
Superslave No
Autoserial Yes
DNSSEC No
Disabled data No
Comments No
Module name db2
Launch name db2

PowerDNS is currently ascertaining if this backend can be distributed in binary form without violating IBM DB2 licensing.

Queries

The DB2 backend executes the following queries:

Forward Query

select Content, TimeToLive, Priority, Type, ZoneId, 0 as ChangeDate, Name from Records where Name = ? and type = ?

Forward By Zone Query

select Content, TimeToLive, Priority, Type, ZoneId, 0 as ChangeDate, Name from Records where Name = ? and Type = ? and ZoneId = ?

Forward Any Query

select Content, TimeToLive, Priority, Type, ZoneId, 0 as ChangeDate, Name from Records where Name = ?

List Query

select Content, TimeToLive, Priority, Type, ZoneId, 0 as ChangeDate, Name from Records where ZoneId = ?

Configuration Parameters

db2-server

Server name to connect to. Defaults to 'powerdns'. Make sure that your nameserver is not needed to resolve an IP address needed to connect as this might lead

db2-user

Username to connect as. Defaults to 'powerdns'.

db2-password

Password to connect with. Defaults to 'powerdns'.

ODBC backend

Note: This backend was removed in version 3.1.

Native Yes
Master Yes (experimental)
Slave Yes (experimental)
Superslave No
Autoserial Yes

The ODBC backend can retrieve zone information from any source that has a ODBC driver available.

Note This backend is only available on PowerDNS for Windows.

The ODBC backend needs data in a fixed schema which is the same as the data needed by the MySQL backend. The create statement will resemble this:

          CREATE TABLE records (
      id int(11) NOT NULL auto_increment,
      domain_id int(11) default NULL,
      name varchar(255) default NULL,
      type varchar(10) default NULL,
      content varchar(255) default NULL,
      ttl int(11) default NULL,
      prio int(11) default NULL,
      change_date int(11) default NULL,
      PRIMARY KEY (id),
      KEY name_index(name),
      KEY nametype_index(name,type),
      KEY domainid_index(domain_id)
      );

To use the ODBC backend an ODBC source has to be created, to do this see the section Installing PowerDNS on Microsoft Windows, not included in the documentation as installation on Windows is not supported.

Configuration Parameters

odbc-datasource

Specifies the name of the data source to use.

odbc-user

Specifies the username that has to be used to log into the data source.

odbc-pass

Specifies the user's password.

odbc-table

Specifies the name of the table containing the zone information.

The ODBC backend has been tested with Microsoft Access, MySQL (via MyODBC) and Microsoft SQLServer. As the SQL statements used are very basic, it is expected to work with many ODBC drivers.

XDB Backend

No longer part of PowerDNS.