Unbound is a validating, recursive, and caching DNS resolver.
The C implementation of Unbound is developed and maintained by 
NLnet Labs. It is based on ideas and algorithms taken from a java 
prototype developed by Verisign labs, Nominet, Kirei and ep.net.

Unbound is designed as a set of modular components, so that also DNSSEC 
(secure DNS) validation and stub-resolvers (that do not run as a server,
but are linked into an application) are easily possible.
