Backends

The following table describes the supported backends and some of their capabilities.

Name	Native	Primary	Secondary	Producer	Consumer	Autosecondary	DNS Update	DNSSEC	Launch
BIND	Yes	Yes	Yes	No	No	Experimental	No	Yes	bind
Generic Mysql/Mariadb	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	gmysql
Generic ODBC	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	godbc
Generic Postgresql	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	gpgsql
Generic SQLite3	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	gsqlite3
GeoIP	Yes	No	No	No	No	No	No	Yes	geoip
LDAP	Yes	Yes	No	No	No	No	No	No	ldap
LMDB	Yes	Yes	Yes	Yes	Yes	No	Yes*	Yes	lmdb
Lua2	Yes	Yes	No	No	No	No	No	Yes	lua2
Pipe	Yes	No	No	No	No	No	No	No	pipe
Random	Yes	No	No	No	No	No	No	No	random
Remote	Yes	Yes*	Yes*	No	No	Yes*	No	Yes*	remote
TinyDNS	Yes	Yes	No	No	No	No	No	No	tinydns

All the generic SQL backends have similar functionality, apart from the database they communicate with. These backends have features unique to the generic SQL backends.