Open Source Mac DNS Software

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

teemIP is an open source, web-based IP Address Management (IPAM) and DDI solution built on the iTop framework. It provides comprehensive IP management: IPv4/IPv6 plan management, subnet hierarchy, IP lifecycle, VLAN and DNS/DHCP integration. teemIP is now maintained by the teemIP SAS founding team: Christophe Naud (original creator), Martin de Laval and Quentin Ville. The company is being officially incorporated in July 2026. The project remains open source under AGPL v3. Professional support, integration services and subscriptions: https://www.teemip.com

theHarvester is a very simple to use, yet powerful and effective tool designed to be used in the early stages of a penetration test or red team engagement. Use it for open source intelligence (OSINT) gathering to help determine a company's external threat landscape on the internet. The tool gathers emails, names, subdomains, IPs and URLs using multiple public data sources.

NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids, on all devices and on all networks. Determine your threat model and fine-tune your security strategy by enabling 10+ different types of protections. Use the most trusted threat intelligence feeds containing millions of malicious domains, all updated in real-time. Go beyond the domain, we analyze DNS questions and answers on-the-fly (in a matter of nanoseconds) in order to detect and block malicious behavior. With usually only a few hours between domain registration and the start of an attack, our threat intelligence system is built to catch malicious domains earlier than classic security solutions. Block ads and trackers on websites and in apps, including the most devious ones. Use the most popular ads & trackers blocklists, millions of domains all updated in real-time.

Blocky is a fast, lightweight DNS proxy and network-wide ad blocker designed for home labs and small networks that want Pi-hole-like filtering with more flexible DNS routing and modern protocol support. It blocks DNS queries using external deny lists while also supporting allow lists, and it can scope policies by client groups so different devices or households can have different rulesets. Unlike a single-purpose blocker, it supports advanced DNS behavior such as conditional forwarding and custom resolution for specific domains, letting you shape traffic in ways that fit split-horizon DNS, internal services, or privacy-focused upstream strategies. Performance is a major focus, with configurable caching, prefetching, and the ability to use multiple upstream resolvers simultaneously to reduce latency and avoid single points of failure.

CoreDNS is a DNS server/forwarder, written in Go, that chains plugins. Each plugin performs a (DNS) function. CoreDNS is a Cloud Native Computing Foundation graduated project. CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. If some functionality is not provided out of the box you can add it by writing a plugin. CoreDNS can listen for DNS requests coming in over UDP/TCP (go'old DNS), TLS (RFC 7858), also called DoT, DNS over HTTP/2 - DoH - (RFC 8484) and gRPC (not a standard). Serve zone data from a file; both DNSSEC (NSEC only) and DNS are supported (file and auto). Retrieve zone data from primaries, i.e., act as a secondary server (AXFR only) (secondary). Sign zone data on-the-fly (dnssec). Load balancing of responses (loadbalance). Allow for zone transfers, i.e., act as a primary server (file + transfer). Automatically load zone files from disk (auto).

ddclient is a long-standing, Perl-based Dynamic DNS client that keeps DNS records updated when your public IP changes. It supports a wide roster of DNS providers and APIs, allowing both A and AAAA updates so IPv4 and IPv6 hosts remain reachable. The client can discover your current address via network interfaces or external check services, which is crucial for NAT’d home connections. It runs as a daemon or from cron, with configurable intervals, SSL/TLS for provider communication, and robust logging to aid troubleshooting. A single configuration file defines multiple hosts, credentials, and per-record options, making complex setups straightforward. In practice, ddclient turns dynamic residential or small-office internet links into stable hostnames for VPNs, home labs, and self-hosted services.

Poweradmin is a web-based DNS administration tool for PowerDNS server. The interface has full support for most of the features of PowerDNS. It has full support for all zone types, for supermasters, full support for IPv6 and multi-language support.

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.

MasterDnsVPN is a research-oriented DNS tunneling VPN project that carries TCP traffic through DNS queries and responses. It is designed for restrictive network environments where DNS may remain available even when other connection methods are limited. The project focuses on stability, speed, and compatibility across different resolver behaviors. It uses a custom protocol with ARQ, low overhead, resolver balancing, and multipath behavior to improve performance under packet loss. MasterDnsVPN also includes client and server configuration files, Docker support, and installation scripts for easier deployment. It is best understood as an experimental transport system for DNS-based tunneling rather than a general-purpose commercial VPN.

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

Powerfull DNS Server (fully customizable and *scriptable*) and pure Java DNS Protocol implementation

Heyoka is an advanced tool to perform DNS tunneling in a flexible and reliable way. It uses binary encoding in order to speed up the data transfer, and spoofs the DNS requests in order to be harder to detect. Currently in alpha state.

Local (DNS) Forwarding Proxy (Lox) is a program that supports proxying and logging of DNS requests. A rotating list of nameservers can be specified. The program can automatically configure the correct network interface to use Lox as nameserver.

wp-whois-proxy (wp.cgi) is a total rewrite (perl) of the famous GeekTools Whois Proxy with additional functions, a validated html/css interface, and explicit functions which should make it easier to maintain and expand.

CartoReso intends to facilitate enterprise computer network mapping.

CrossIP is a dns update client for console and gui environments using the open source ThatIP-J library.

Local DNS server, that act as a proxy and will rewrite request according to a config file and an "active" environement. Usefull to switch easily between diffent configuration without touch the host file. small web server embeded to display current configuration, control active environment and reload configuraiton.

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.

A DNS resolver library written in pure PHP script. This library offers almost same functionalities of getmxrr() and checkdnsrr(). You may find this library helpful when you would like to retrieve MX(Mail exchange) records in win32 PHP environment.

Update your dynamic IP for domains registered with freedns.afraid.org

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

JmDNS is a java implementation of the IETF draft RFP multicast extensions for DNS. This project contains the needed elements for service discovery and service registration. It is compatible with Apple\'s Rendezvous service. This project has been moved to http://www.jmdns.org. This site is no longer actively maintained. Please visit us at our new home!

DNScat is a "swiss-army knife" tool to tunnel traffic through DNS servers. It is a small, yet powerfull tool, similar to netcat. In conjunction with PPP server, it allows to build a VPN using DNS packets. DNScat is a useful tool for penetration testing.

The EPPTT is a flexible, script based EPP client. It can be used to mount fully automated and comprehensive tests against different implementations of EPP. It has both an intutive command line interface as well as a user friendly web interface. EPPTT