README

Technitium DNS Server
	
	
	Self host a DNS server for privacy & security
	Block ads & malware at DNS level for your entire network!





Technitium DNS Server is an open source authoritative as well as recursive DNS server that can be used for self hosting a DNS server for privacy & security. It works out-of-the-box with no or minimal configuration and provides a user friendly web console accessible using any modern web browser.

Nobody really bothers about domain name resolution since it works automatically behind the scenes and is complex to understand. Most computer software use the operating system's DNS resolver that usually query the configured ISP's DNS server using UDP protocol. This way works well for most people but, your ISP can see and control what website you can visit even when the website employ HTTPS security. Not only that, some ISPs can redirect, block or inject content into websites you visit even when you use a different DNS provider like Google DNS or Cloudflare DNS. Having Technitium DNS Server configured to use DNS-over-TLS, DNS-over-HTTPS, or DNS-over-QUIC forwarders, these privacy & security issues can be mitigated very effectively.

Be it a home network or an organization's network, having a locally running DNS server gives you more insights into your network and helps to understand it better using the DNS logs and stats. It improves overall performance since most queries are served from the DNS cache making web sites load faster by not having to wait for frequent DNS resolutions. It also gives you an additional control over your network allowing you to block domain names network wide and also allows you to route your DNS traffic securely using encrypted DNS protocols.

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 Features
- Works on Windows, Linux, macOS and Raspberry Pi.
- Docker image available on Docker Hub.
- Installs in just a minute and works out-of-the-box with zero configuration.
- Block ads & malware using one or more block list URLs.
- Supports working as an authoritative as well as a recursive DNS server.
- Includes built-in Clustering feature to allow managing two or more DNS Server instances from a single admin web console.
- Supports Single Sign-On (SSO) with OpenID Connect (OIDC).
- Supports LDAP authentication.
- High performance DNS server based on async IO that can serve millions of requests per minute even on a commodity desktop PC hardware (load tested on Intel i7-8700 CPU with more than 100,000 request/second over Gigabit Ethernet).
- Self host DNS-over-TLS, DNS-over-HTTPS, and DNS-over-QUIC DNS services on your network.
- DNS-over-HTTPS implementation supports HTTP/1.1, HTTP/2, and HTTP/3 transport protocols.
- Supports DNS over PROXY protocol version 1 and 2 for both UDP and TCP transports.
- Use public DNS resolvers like Cloudflare, Google, Quad9, or AdGuard with DNS-over-TLS, DNS-over-HTTPS, or DNS-over-QUIC protocols as forwarders.
- Support for latency based name server selection algorithm that works with concurrency