Open Source Networking Software

Acrylic is a local DNS proxy for Windows which improves the performance of your computer by caching the responses coming from your DNS servers and helps you fight unwanted ads through the use of a custom HOSTS file (optimized for handling hundreds of thousands of domain names) with support for wildcards and regular expressions. When you browse a web page a portion of the loading time is dedicated to name resolution while the rest is dedicated to the transfer of the web page contents. What Acrylic does is to reduce the time dedicated to name resolution for frequently visited addresses closest to zero possible. Furthermore Acrylic's sliding expiration caching mechanism and DNS silent updates are able to improve the browsing experience independently of the browser. With Acrylic you can also gracefully overcome downtimes of your DNS servers without disrupting your work, because in that case you will at least be able to connect to your favourite websites and to your email server.

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.

TeemIp is a free, open source, WEB based, IP Address Management (IPAM) tool that provides comprehensive IP Management capabilities. It allows you to manage your IPv4, IPv6 and DNS spaces: track user requests, discover and allocate IPs, manage your IP plan, your subnet space, your zones and DNS records in accordance with best in class DDI practices. At the same time, TeemIp's CMDB allows you to manage your IT inventory and links your CIs to the IPs they use. Project source code is located on https://github.com/TeemIP

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.

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).

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.

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.

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.

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.

A DNS server for Unix and Windows platforms, supporting authoritative service (master/slave) as well as caching. Also featuring a graphical master file editor (mfedit), a graphical DNS query tool (dnsquery) and a DNS programming library for C++ (poslib).

Anti-procrastination website and application blocker with scheduling. Perfect for students and parents alike. A free and open-source alternative to Cold Turkey. Made by Dang Nam Anh, Truong Duc Quan and Trieu Tran Duc Tri.

DNSSet is a command line tool that automatically set DNS servers for internet connection. The tool contains a big list of nameservers that can be updated or manually edited.

KeexyBox allows you to do parental control, block ads, limit telemetry, and browse the Internet anonymously from your home network without installing any software on your devices. It also can be used to create a public wireless access point with the captive portal. It is a software program which requires a Raspberry PI box and which is installed on Raspbian. It constitutes a cut-off point between your devices (computers, tablets, smartphones, etc.) and your router or Internet box. KeexyBox acts as a default gateway and DNS server for the devices in your home network. It thus intercepts all connections to the Internet to carry out website filtering or to activate browsing via the Tor anonymity network according to connection profiles which you have configured.

Check given IP/Host presence in 106 RBLs. Now, you don\'t have to check a lot www sites, just run this script in console.

SysMate - Hosts File Walker is an approachable and portable software application that facilitates a user-friendly working environment for helping you manage the Hosts file. You don't need to care about the hosts file. SysMate - Host File Walker has been designed to cater for the hosts's file structure, entry insertion and DNS to IP conversion. So you don't need to know the IP of either the DNS you are diverting from or the one you are porting to. SHFW automatically resolves the IP, detects for conflict within the hosts file and warns you to make changes. The GUI is represented by a normal window with a plain and simple structure that contains an example on how the Hosts file should look like. You can add as many new hosts to the file as you want by specifying the IP address and site (DNS), delete the Hosts file or restore its settings to default, restore the last modified Hosts, as well as back up and restore data. There are no other notable options available here.

Visual Synapse are component wrappers around the Synapse tcp/ip libraries. It wraps a few common internet protocols, like HTTP, UDP, DNS, ICMP, TCP and SMTP to multi-threaded components that can be used with Delphi, Kylix, Freepascal and C++ Builder.

phpDHCPAdmin Manage the ISC DHCPD Service. Groups, User access levels, PXE, Multiple subnets, lease management, graphing features, classes support, multiple pool support. Built with security, flexibility and usage for large scale dhcp environments

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.

DaNielS is a DNS server for the Microsoft Windows Win32 API platform. It is a port of djbdns, which retains all the functionality of the original package, but uses native Windows function calls. It is distributed as a patch to the original djb package.

.NetCyberKit aims to create a programmers internet toolkit for the Microsoft.Net framework. The library will include functionalilty for advanced DNS, finger and whois lookups. This library will be primarily written in VB.NET

ANDReA is a LAMP based system for registration of network clients by using DHCP. Splitting the network into "boot-net" for unregistered users and a "real-net" for registered onses is making it possible to gather server-sided information about users

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

This is an enhanced version of the original pgsqldb interface which is included with the BIND-9.x