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A Cross Platform DNS update client, written in java. CrossIP uses the ThatIP protocol version 1.1 to send DNS update requests. It manages DNS records, update history, and allows for per record configuration. It also includes a wizard for generation of configuration files. http://www.thatip.com/crossip/ -Dan Smith dan@algenta.com

Doc is an automated tool for verifying (to an extent) that a domain is configured and functioning correctly. It makes no attempt to validate the data inside a domain, only the structure. The only required parameter is the valid domain name of an existing domain. Example: doc isi.edu.

powerdns recursor is a high performance, simple and secure recursing nameserver. It currently powers over two million internet connections.

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. Goals: * A validating recursive DNS resolver. * Code diversity in the DNS resolver monoculture. * Drop-in replacement for BIND apart from config. * DNSSEC support. * Fully RFC compliant. * High performance, even with validation enabled. * Used as: stub resolver, full caching name server, resolver library. * Elegant design of validator, resolver, cache modules. o provide the ability to pick and choose modules. * Robust. * In C, open source: The BSD license. * Smallest as possible component that does the job. * Stub-zones can be configured (local data or AS112 zones). Non-goals: * An authoritative name server. * Too many Features.

gdnsd is an Authoritative-only DNS server. The initial g stands for Geographic, as gdnsd offers a plugin system for geographic (or other sorts of) balancing, redirection, and service-state-conscious failover. If you don't care about that feature, it's still quite good at being a very fast, lean, and resilient authoritative-only server for static DNS data. gdnsd is written in C using libev and pthreads with a focus on high performance, low latency service. It does not offer any form of caching or recursive service, and does not support DNSSEC.

gdnsd is an Authoritative-only DNS server. The initial g stands for Geographic, as gdnsd offers a plugin system for geographic (or other sorts of) balancing, redirection, and service-state-conscious failover. If you don't care about that feature, it's still quite good at being a very fast, lean, and resilient authoritative-only server for static DNS data. gdnsd is written in C using libev and pthreads with a focus on high performance, low latency service. It does not offer any form of caching or recursive service, and does not support DNSSEC.

ddns is a lightweight UDP-based dynamic DNS updater. It consists of a client that regularly sends UDP packets and a server that updates a bind zone file or runs a command using the peer IPv4 address of recieved UDP packets.

libfiredns is a library for handling asynchronous DNS requests. It provides a very simple interface for sending requests and parsing reponses, as well as low-timeout blocking functions. libfiredns functions have much lower timeouts than the stock functions and tend to be faster because they send requests to all configured system nameservers at the same time.

libasr is a FREE asynchronous DNS resolver. libasr runs on top of the OpenBSD operating system but also has a portable version that can build and run on several systems, including: * Linux * FreeBSD * NetBSD * DragonFly * MacOSX This port packages the development snapshots released by OpenSMTPD team.