Open Source C DNS Software

This is a command line utility to resolve DNS requests via a SOCKS tunnel like Tor or a HTTP proxy.

A client for automaticly updating your EZ-IP.net, justlinux.com, dhs.org, dyndns.org, ods.org, gnudip.cheapnet.net, tzo.com, easydns.com dynamic hostname parameters. Includes daemon support that only sends updates if your IP address changes.

Self Integrated DNS DHCP Server Open Source Freeware Windows/Linux. Works as DHCP or DNS Server or both. Using both services automatically adds DHCP allotted hosts automatically to DNS Server. Support Relay Agent, PXEBOOT, BOOTP, Zone Trasfer, DHCP Range Filters. Download.

SmartDNS is a local DNS server. SmartDNS accepts DNS query requests from local clients, obtains DNS query results from multiple upstream DNS servers, and returns the results with the fastest access speed to clients, improving network access speed. At the same time, it supports the designation of specific domain name IP addresses, and high-quality matching to achieve the effect of filtering advertisements. Different from all-servers of dnsmasq, smartdns returns the resolution results with the fastest access speed. Supports Raspberry Pi, openwrt, ASUS router, windows and other devices. Supports domain name suffix matching mode, simplify filtering configuration, filter 200,000 records in less than 1ms. Supports domain name shunting, different types of domain names are queried to different DNS servers. Support standard Linux system (Raspberry Pi), various firmware of openwrt system, and native firmware of ASUS router. And support for Windows 10 WSL (Windows Subsystem for Linux).

MaraDNS is a fully open-sourced DNS server that strives to be secure. It is written in C (no C++) and is suitable for embedded systems.

Multiple services fork of original multi-platform inadyn, and inadyn-advanced projects. Supports many update services, easily extendable for others including additional servers config file, custom response codes, custom parameter names, and custom update server type. Highly flexible with many per alias option parameters. Supports IPv4, and IPv6. Console, or installed as a service. Unicode. And other features. dyndns.org (dynamic, static, & custom) freedns.afraid.org zoneedit.com no-ip.com easydns.com sitelutions.com dnsomatic.com ipv6tb.he.net tzo.com dhis.org two-dns.de www.dnsdynamic.org dnspark.com regfish.de www.ovh.com joker.com system-ns.com changeip.com dnsexit.com nsupdate.com loopia.com domains.google.com (requires SSL bridge, like stunnel) duckdns.org di.fi ddnss.de dynv6.com selfhost.de

It is not only a web server, it is also Mail server, DNS server, FTP server, TFTP server, Proxy server, VPN server and client... All in one! This program will help you to open all the possibilities Internet can offer for your company - public site, provide Internet access and personal mailboxes for each employee! HTTP server. Server Side Includes. Regular expression in SSI. CGI interface for scripts (Executable files; Perl,PHP, or another external interpreters) ISAPI interface. Virtual hosts and directories Mail POP3 server. SMTP server. FTP server HTTP proxy server DNS server DHCP server HTTP TLS VPN server

Passive network application response time monitor utilising libpcap packet capture. Maintains session state tracking host response, network round-trip times and end-point/network congestion. Can be configured for many protocols such as http, telnet...

It is a versatile DNS Proxy server with DNS firewall which filters DNS traffic between local computer and DNS servers with flexible rules, supports blocking by IP geography, caching, import/export rules into XML. With a click of a button acts as a DNS proxy (or DNS server), supports multiple client authentication methods, calculates statistics for DNS servers and proxy clients, supports load balancing between multiple upstream DNS servers.

InjectSOCKS is an open source utility for Microsoft Windows. It forces foreign software to create any TCP connection through a SOCKS V5 tunnel like Tor. It also covers DNS requests of the foreign software in a way that they aren't leaked. The implemented technology is independent from the used protocols on TCP, so it works for HTTP, HTTPS, passive FTP, SMTP, etc.

MyDNS-NG is the Next Generation DNS Server for fast and scalable sql based DNS services.

CartoReso intends to facilitate enterprise computer network mapping.

THIS PROJECT HAS MOVED: For the latest releases and to contribute please go to https://github.com/montdidier/dnrd

The Dynamic DNS project aims to provide a free and open dynamic dns server and a suite of multi-language api tools for integrating dynamic dns services into applications.

The dnsutl package is a collection tools to make administering DNS easier. These include reverse map generation, validation, and much more. All of these programs are robust when faced with all the peculiar semantics of DNS resource files.

[Moved to Github] A PHP-based client class that communicates with the TuCows OpenSRS Domain Name Registry System via an API.

MyDNS is a free DNS server for UNIX systems that utilizes MySQL for data storage. Instant, dynamic updates to DNS data may be made via simple SQL queries. MyDNS is a completely new implementation of DNS, written in C and licensed under the GPL. Its pr

Dudders is a utility for updating DNS records. It points a domain name to a given IP address, using the RFC2136 DNS UPDATE protocol and a SIG(0) signature. It is designed with embedded systems in mind.

gh-tool is a command-line interface to gethostby*, in libresolv/libc. It allows one to check the local system's notion of an IP->DNS or DNS->IP mapping, including aliases, directly, rather than digging for mappings in DNS, which may not pertain.

rldns is an open-source, lightweight DNS server designed for Linux, NetBSD, FreeBSD, and OpenBSD. It supports both x86 and x86_64 architectures. Developed by Antonius (w1sdom) from bluedragonsec.com Latest Update: Version 1.3 (Released February 2026). This release includes core performance optimizations and enhanced query handling.

Zeroconf networking allows easy connection of hosts without needing to setup DHCP servers or assign static IPs. This project is intended to provide support for Zeroconf (http://www.zeroconf.org) networking for Linux and Unix machines.

Objective: To add capabilities to Bind 9 that will allow Bind backend databases to support adding and removing zones without interrupting normal server operation.

Software for reliable url cloaking system using low q.o.s hosts and lines such as home PC's and dsl or cable connections. CDUCK combined DNS-server and webserver functionality and strict security for the creation of reliable domain web cloaking.

Dave's Naughty Stuff Blocker. This is an open source solution to allow administrators to filter and redirect selected "inappropriate" sites based on a list of specific sites and/or strings.