Technitium DNS Server

Technitium DNS Server is a free, open-source DNS server that runs full recursive resolution, authoritative zone hosting, and network-wide ad blocking from a single binary. Unlike Pi-hole or AdGuard Home, which filter queries and then hand them off to an upstream resolver like Cloudflare or Google, Technitium can walk the entire DNS chain itself, from the root servers down, without depending on anyone else’s infrastructure.

Where Technitium DNS Server came from

Technitium Software, a small outfit based in Mumbai, India, first released the DNS Server in November 2017, pitched at developers who wanted to simulate live DNS setups locally, alongside the company’s other tools like TMAC, a MAC address changer, and Mesh, a peer-to-peer messenger. It has since grown into a production-grade resolver with its own community on r/technitium, still built by a small team rather than a foundation like the one behind Pi-hole.

A full recursive resolver, not just a forwarder

Pi-hole and AdGuard Home are both sinkholes: they check a domain against blocklists and, if it’s clean, forward the query to whatever upstream resolver you’ve configured. Technitium can do that too, but it doesn’t need to. Point it at recursion instead of a forwarder and it queries the root servers, then the TLD servers, then the domain’s own authoritative name server, the same job your ISP or Cloudflare’s resolvers do, just on your own hardware. No third party sees your full query stream, and it opens the door to hosting authoritative zones for your own domains on the same server. It’s a different job than Pi-hole or AdGuard Home set out to do, which is why homelab threads increasingly bring Technitium up as a third option, not a straight swap.

Key features

Beyond the recursive/authoritative split, the feature list is long for something you run in one container: block list URLs for ad and malware blocking, native DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC on both the client and forwarder side, DNSSEC validation and zone signing, a built-in DHCP server, clustering, Single Sign-On via OpenID Connect, and a full HTTP API behind the same web console. Dig further and there’s zone transfers, catalog zones, and split-horizon or geolocation-based responses through its DNS Apps system, with throughput the project’s own benchmarks put north of 100,000 requests per second on ordinary desktop hardware.

Installing Technitium DNS Server with Docker

Technitium maintains its own official Docker image. A minimal compose file covering DNS service and the web console:

services:
  dns-server:
    container_name: dns-server
    hostname: dns-server
    image: technitium/dns-server:latest
    ports:
      - "5380:5380/tcp"   # web console (HTTP)
      - "53:53/udp"       # DNS service
      - "53:53/tcp"       # DNS service
    environment:
      - DNS_SERVER_DOMAIN=dns-server
    volumes:
      - config:/etc/dns
      - logs:/var/log/technitium/dns
    restart: unless-stopped

volumes:
  config:
  logs:

docker compose up -d

Open http://localhost:5380 and the console logs in automatically with the default admin/admin credentials, so changing that password is the first thing to do. Want DNS-over-TLS, DoH, DoQ, or the built-in DHCP server exposed to your network? The project’s full docker-compose.yml example lists every optional port and environment variable, including DNS_SERVER_ADMIN_PASSWORD to set the password at first boot instead of through the UI.

We rate Technitium DNS Server Medium, not Easy like Pi-hole and AdGuard Home. The Docker install is arguably simpler, one container, no password buried in logs. What pushes the rating up is everything past that first screen: real value means understanding recursion vs forwarding, when authoritative zones are worth setting up, and whether DNSSEC or clustering earn their extra configuration. Pi-hole and AdGuard Home are basically done once you point your router at them; Technitium keeps paying off the more time you spend in its settings.

Technitium vs Pi-hole vs AdGuard Home

All three block ads at the DNS level. The real split is how much DNS server sits underneath the blocklist:

Category	Technitium DNS Server	Pi-hole	AdGuard Home
License	GPL-3.0	EUPL-1.2	GPL-3.0
Core role	Full recursive + authoritative DNS server	Sinkhole / forwarder	Sinkhole / forwarder
Recursive resolution (no upstream needed)	Built in	Not supported	Not supported
Encrypted DNS (DoH/DoT/DoQ)	Built in, client and server side	Needs added software	Built in
DNSSEC validation & signing	Built in	Not supported	Not supported
Authoritative zone hosting	Built in	Not supported	Not supported
DHCP server	Optional, built in	Optional, built in	Optional, built in
Admin API	Full HTTP API	Partial	Partial
Learning curve	Steeper, more DNS concepts	Shallow	Shallow

Pick Pi-hole or AdGuard Home if network-wide ad blocking is the whole goal. Pick Technitium if you also want a resolver that doesn’t lean on anyone else’s infrastructure, plan to host your own domain’s DNS records, or want DNSSEC and zone transfers without a second piece of software. You can also run Technitium as the recursive resolver behind Pi-hole or AdGuard Home’s forwarder setting, combining blocklist filtering with full recursion.

Technitium DNS Server: pros and cons

• Full recursive resolver, no dependency on a third-party upstream for DNS resolution
• DNSSEC, encrypted DNS, DHCP, clustering, and authoritative zone hosting all built into one binary
• Free and open source under GPL-3.0, official Docker image, and native builds for five platforms including Raspberry Pi
• High-performance async I/O core, benchmarked at over 100,000 requests per second on ordinary desktop hardware

• Smaller blocklist ecosystem and community tooling than Pi-hole’s, ad blocking is a feature here, not the headline
• More concepts to learn to get full value: recursion vs forwarding, zones, DNSSEC
• A crash or reboot takes DNS down for every device pointed at it, the same single-point-of-failure trade-off as any local DNS server
• Only blocks what DNS can see, ads sharing a domain with the content itself still get through

Alternatives worth knowing about

Pi-hole and AdGuard Home are the two most common starting points for network-wide ad blocking, each with a full review on its own page. NextDNS runs the same idea as a cloud service, no hardware required. Start with Pi-hole or AdGuard Home for the lowest-effort ad blocking; reach for Technitium once you want the DNS server itself, not just the blocklist.

Browse our Network & Security archive for more homelab networking tools.

FAQ

Is Technitium DNS Server a Pi-hole replacement?

It can be, since it also blocks ads via block list URLs, but that’s one feature among many, not its whole purpose. Pi-hole and AdGuard Home exist specifically for network-wide ad blocking with the simplest setup possible. Technitium is a general-purpose recursive and authoritative DNS server that happens to include blocking, aimed more at people who want control over DNS itself.

Do I need to understand DNS to use Technitium?

Not for basic ad blocking, the default install works out of the box with recursion enabled. But its deeper features, authoritative zones, DNSSEC, conditional forwarding, assume some familiarity with how DNS resolution works, which is the main reason we rate it Medium rather than Easy.

Is Technitium DNS Server free?

Yes. It’s free and open source under GPL-3.0, with the source, official Docker image, and native installers all available at no cost. The project takes donations through Patreon but doesn’t gate any DNS Server features behind payment.