The following table describes the supported backends and some of their capabilities.
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| Name | Native | Master | Slave | Super slave | :doc:`DNSSEC <../dnssec/index>` | Launch |
-+================================================+========+========+=======+==============+=================================+==============+
-| :doc:`BIND <bind>` | Yes | Yes | Yes | Experimental | Yes | ``bind`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Generic Mysql <generic-mysql>` | Yes | Yes | Yes | Yes | Yes | ``gmysql`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Generic ODBC <generic-odbc>` | Yes | Yes | Yes | Yes | Yes | ``godbc`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Generic Postgresql <generic-postgresql>` | Yes | Yes | Yes | Yes | Yes | ``gpgsql`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Generic SQLite3 <generic-sqlite3>` | Yes | Yes | Yes | Yes | Yes | ``gsqlite3`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`GeoIP <geoip>` | Yes | No | No | No | Yes | ``geoip`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`LDAP <ldap>` | Yes | Yes | No | No | No | ``ldap`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`LMDB <lmdb>` | Yes | Yes | Yes | No | Yes | ``lmdb`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Lua2 <lua2>` | Yes | Yes | No | No | Yes | ``lua2`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Pipe <pipe>` | Yes | No | No | No | Partial | ``pipe`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Random <random>` | Yes | No | No | No | Partial | ``random`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`Remote <remote>` | Yes | Yes\* | Yes\* | Yes\* | Yes\* | ``remote`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
-| :doc:`TinyDNS <tinydns>` | Yes | Yes | No | No | Partial | ``tinydns`` |
-+------------------------------------------------+--------+--------+-------+--------------+---------------------------------+--------------+
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| Name | Native | Master | Slave | Super slave | :doc:`Dynamic DNS Update <../dnsupdate>` | :doc:`DNSSEC <../dnssec/index>` | Launch |
++================================================+========+========+=======+==============+==========================================+=================================+==============+
+| :doc:`BIND <bind>` | Yes | Yes | Yes | Experimental | No | Yes | ``bind`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Generic Mysql <generic-mysql>` | Yes | Yes | Yes | Yes | Yes | Yes | ``gmysql`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Generic ODBC <generic-odbc>` | Yes | Yes | Yes | Yes | Yes | Yes | ``godbc`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Generic Postgresql <generic-postgresql>` | Yes | Yes | Yes | Yes | Yes | Yes | ``gpgsql`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Generic SQLite3 <generic-sqlite3>` | Yes | Yes | Yes | Yes | Yes | Yes | ``gsqlite3`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`GeoIP <geoip>` | Yes | No | No | No | No | Yes | ``geoip`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`LDAP <ldap>` | Yes | Yes | No | No | No | No | ``ldap`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`LMDB <lmdb>` | Yes | Yes | Yes | No | No | Yes | ``lmdb`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Lua2 <lua2>` | Yes | Yes | No | No | No | Yes | ``lua2`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Pipe <pipe>` | Yes | No | No | No | No | Partial | ``pipe`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Random <random>` | Yes | No | No | No | No | Partial | ``random`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`Remote <remote>` | Yes | Yes\* | Yes\* | Yes\* | No | Yes\* | ``remote`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
+| :doc:`TinyDNS <tinydns>` | Yes | Yes | No | No | No | Partial | ``tinydns`` |
++------------------------------------------------+--------+--------+-------+--------------+------------------------------------------+---------------------------------+--------------+
All the generic SQL backends have similar functionality, apart from the database they communicate with.
These backends have :doc:`features unique <generic-sql>` to the generic SQL backends.