NetDB is a suite of applications for managing DNS and DHCP in a distributed, collaborative fashion. It is geared towards very large networks and can support thousands of nodes, networks, and users. NetDB consists of a database with Web, command-line, and RMI interfaces. Users use the NetDB Web and command-line interfaces to keep the data in NetDB up to date. The GSSAPI-secured RMI interface can be used to create site-specific tools to manage and use NetDB data. NetDB includes scripts for generating ISC BIND zonefiles and ISC DHCP configuration files.
PDNSOps, is a Web-based script which aids in administering domains and records for the PowerDNS SQL name server software. It is targeted mainly toward individual domain owners, but should be robust enough to be used in a larger capacity by an ISP or other big host. For those who may not know, PowerDNS is a domain name server application, much like BIND, but offering alternative backends for the storage of domain information.
OpenNetAdmin provides a database managed inventory of your IP network (IPAM). Each host can be tracked via a centralized AJAX-enabled Web interface that can help reduce tracking errors. It also has the ability to generate DHCP and DNS configuration for individual servers from the data stored in the database. There is a command line interface for batch scripting that can be accessed remotely or locally.
Syncless is an experimental, lightweight, non-blocking (asynchronous) client and server socket network communication library implemented in Stackless Python 2.6. It contains an asynchronous DNS resolver (using dnspython) and an HTTP server capable of serving WSGI applications. It aims to be a coroutine-based alternative of event-driven networking engines (such as Twisted and FriendFeed's Tornado). It is already about that fast, but it has fewer features and is less stable now.