slapi-dnsnotify is a plugin for OpenLDAP or other LDAP servers. It watches for changes in the serial number of a DNS zone stored in the LDAP server, and notifies DNS slave servers to refresh their copy of the zone.
It can also increment the serial number of a zone whenever changes in that zone are made.
Compatibility: Has been tested with OpenLDAP and the dnsdomain2.schema.
You can get a snapshot of the source with git:
$ git clone git://thewalter.net/slapi-dnsnotify.git
Source code repository:
Licensed under a BSD license. Contact me when bugs are found.