LDAPDNS is an LDAP to DNS gateway.
Version: 2.0.6ldapdns is a fast and rhobust root-nameserver that can outperform bind and djbdns on medium to large installations, and will scale well both up and down.
Operating System: Linux
the secret is that ldapdns uses a threaded core, and takes advantage of an external directory. it's extremely simple, and it does not run under user-control as root.
it's ideal for small and large installations, because it queries the ldap server directly, updates are immediate. you don't have to rebuild constant databases, or wait for bind to get it's shit in gear.
but ldapdns is a work-in-progress. i use it on a production network, as do many others. but it's up to you to make it best for your network.