Event-driven networking engine written in Python
DNS resolver in Object Pascal
A Bulk Domain Assessment Tool
rldns is an open source lightweight DNS server for linux & bsd (x64)
Multi-platform inadyn, inadyn-advanced DDNS client fork.
Dynamic DNS updater client for ddns service from dnsexit (and others).
Open-Source Domain Name Registry Platform based on Perl and mod_epp
Use Rackspace DNS as dynamic Dns
DNSsec Key Management