Open Source Linux DNS Software
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DNS Software for Linux
View 6 business solutionsBrowse free open source DNS software and projects for Linux below. Use the toggles on the left to filter open source DNS software by OS, license, language, programming language, and project status.
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DNS2SOCKS
DNS to SOCKS or HTTP proxy
This is a command line utility to resolve DNS requests via a SOCKS tunnel like Tor or a HTTP proxy. -
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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.
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Gobuster
Directory/File, DNS and VHost busting tool written in Go
Gobuster is a tool used to brute-force. This project is born out of the necessity to have something that didn't have a fat Java GUI (console FTW), something that did not do recursive brute force, something that allowed me to brute force folders and multiple extensions at once, something that compiled to native on multiple platforms, something that was faster than an interpreted script (such as Python), and something that didn't require a runtime. Provides several modes, like the classic directory brute-forcing mode, DNS subdomain brute-forcing mode, the mode that enumerates open S3 buckets and looks for existence and bucket listings, and the virtual host brute-forcing mode (not the same as DNS!). Since this tool is written in Go you need to install the Go language/compiler/etc. Full details of installation and set up can be found on the Go language website. Once installed you have two options. You need at least go 1.16.0 to compile gobuster. -
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theHarvester
E-mails, subdomains and names
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. -
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teemIP - CMDB & DDI solution
teemIP : Open source IPAM & DDI solution with CMDB integration.
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 -
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SmartDNS
Local DNS server to obtain the fastest website IP
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). -
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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.
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NextDNS
NextDNS CLI client (DoH Proxy)
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. -
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CoreDNS
CoreDNS is a DNS server that chains plugins
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). -
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ExternalDNS
Configure external DNS servers (AWS Route53, Google CloudDNS and other
ExternalDNS synchronizes exposed Kubernetes Services and Ingresses with DNS providers. Inspired by Kubernetes DNS, Kubernetes' cluster-internal DNS server, ExternalDNS makes Kubernetes resources discoverable via public DNS servers. Like KubeDNS, it retrieves a list of resources (Services, Ingresses, etc.) from the Kubernetes API to determine the desired list of DNS records. Unlike KubeDNS, however, it's not a DNS server itself, but merely configures other DNS providers accordingly, e.g. AWS Route 53 or Google Cloud DNS. In a broader sense, ExternalDNS allows you to control DNS records dynamically via Kubernetes resources in a DNS provider-agnostic way. ExternalDNS' allows you to keep selected zones (via domain-filter) synchronized with Ingresses and Services of type=LoadBalancer in various cloud providers. ExternalDNS can become aware of the records it is managing therefore ExternalDNS can safely manage non-empty hosted zones. -
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Blocky
Fast and lightweight DNS proxy as ad-blocker for local network
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. -
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OpenWrt-dist
A depot of OpenWrt device.
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inadyn-mt - dynamic DNS client
Multi-platform inadyn, inadyn-advanced DDNS client fork.
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 -
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Smbind is a PHP-based tool for managing DNS zones for BIND via the web. Supports per-user administration of zones, error checking, and a PEAR DB database backend. Demo and screenshots available.
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MasterDnsVPN
Advanced DNS tunneling VPN for censorship bypass
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. -
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Twisted
Event-driven networking engine written in Python
Twisted is an event-based framework for internet applications, supporting Python 3.6+. It includes modules for many different purposes. Twisted supports all major system event loops, select (all platforms), poll (most POSIX platforms), epoll (Linux), kqueue (FreeBSD, macOS), IOCP (Windows), and various GUI event loops (GTK+2/3, Qt, wxWidgets). Third-party reactors can plug into Twisted, and provide support for additional event loops. -
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ddclient
ddclient updates dynamic DNS entries for accounts
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. -
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Ddclient is a Perl client used to update dynamic DNS entries for accounts on 'Dynamic DNS Network Services' free DNS service. It currently supports a lot of different routers and a few different services. The project moved to github. See https://www.github.com/ddclient/ddclient for support.
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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.
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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.
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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
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Small HTTP server
Universal server
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 -
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An implementation of the DNS protocol in Java. dnsjava includes a set of classes that can be used within other programs and several user tools.
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The Internet Protocol Address Calculator is an open-source java-based tool. This calculator will assist network administrators to perform calculations over both IPv4 and IPv6 address space. A handy whois search client is also integrated into this tool.
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PHP class for whois queries, can query the correct whois server for domain names, ip addresses and AS handles and returns data in a structured array.
