More in-memory policy and application features can increase the working set.
Feature-heavy recursive resolvers.Technitium DNSサーバーのハードウェア要件：RAM、CPU、ポート、ログ
RAM、CPU、DNSポート、ログ、DHCP、暗号化DNSを考慮したTechnitium DNS Serverのハードウェア計画と、実用的なZimaOSへの導入ガイド。
Technitium DNS Server requirements at a glance
Technitium DNS Server is efficient and network-facing; port ownership and DNS topology matter more than raw server memory.
- RAM
- No numerical official server RAM minimum published.
- CPU
- No numerical official core minimum. The project reports very high throughput on commodity hardware, but that is a load-test reference rather than a minimum.
- Runtime
- Current portable builds use .NET 10; the official Docker image bundles the required runtime.
- Core ports
- DNS requires TCP/UDP 53. The web console defaults to TCP 5380, with optional HTTPS console on 53443.
- Optional network services
- Encrypted DNS can use 443/853 and DHCP uses UDP 67; these ports can conflict with other ZimaOS services.
- Best Zima starting point
- ZimaBoard 2 832 is vastly more than enough for home DNS; reserve port 53 and persistent config/log storage.
From official requirements to the right setup
For Technitium DNS Server, start with the network topology and ports, then consider logs and block lists.
-
Official requirements
Reserve TCP/UDP port 53 on the ZimaOS host and ensure no other DNS service is already using it.
-
Confirm your needs
Use the official technitium/dns-server image and persist /etc/dns; optionally persist /var/log/technitium/dns for long-term logs.
-
Leave room to grow
If enabling DHCP, use the deployment/network mode recommended for direct LAN access; encrypted DNS and web-console HTTPS require additional ports.
-
Run it on ZimaOS
On ZimaOS, use Install Custom App with the official Compose example, map only the DNS/admin/encrypted-DNS ports you actually need, and point router/client DNS at the ZimaOS host IP.
Check every playback client
- TCP/UDP 53 free
- Web port 5380
- DHCP needed
- DoH/DoT/DoQ needed
- Persistent config
- Log retention
- Block lists
- Router/client DNS
Official minimum requirements
Technitium publishes platform, runtime and network requirements but no numerical host hardware minimum.
Do not invent a RAM/core floor. For normal home DNS, the critical requirements are .NET/Docker compatibility, port 53 availability and reliable persistent configuration.
| Requirement | Official minimum | What this supports |
|---|---|---|
| RAM minimum | No numerical official minimum published | DNS Server is designed to run on commodity hardware. |
| CPU minimum | No numerical official minimum published | Throughput depends on query load, apps and logging. |
| Current version | 15.4 | Current public DNS Server page. |
| Runtime | .NET 10 | Current portable build requirement. |
| DNS ports | 53/TCP and 53/UDP | Core DNS service. |
| Web console | 5380/TCP | Default HTTP admin console. |
| Official image | technitium/dns-server:latest | Current official Docker image. |
When to upgrade your hardware
Technitium DNS Server rarely needs more hardware in home use; scale when logging, apps or query volume grows.
Large block lists and DNS apps expand memory use
Detailed logs and statistics grow
Encrypted DNS and very high query rates increase CPU/network load
Long retention can become the primary storage workload.
Monitoring-heavy deployments.TLS/QUIC and public resolver traffic are more demanding than a home LAN resolver.
Public or high-throughput DNS servers.Plan hardware growth with confidence
Scale Technitium around network role and logging rather than app compute.
Keep normal home DNS on ZimaBoard 2 832
The hardware is far above typical home DNS needs.
ZimaBoard 2 832.Persist config and logs on durable storage
Protect DNS zones/configuration and avoid losing logs on container recreation.
Any SATA/NVMe-backed Zima storage.Use 16 GB only for broader server duties
Extra RAM is for other apps, large block lists or analytics—not core DNS alone.
ZimaBoard 2 1664.Use stronger hardware only for public/high-throughput DNS
Encrypted DNS, heavy logging and very high query rates may justify more CPU/network.
ZimaCube 2 Pro.Can it run on ZimaOS?
No public official ZimaOS one-click Technitium DNS Server App Store detail page was verified for this guide. Use the Custom Install route unless a concrete current listing is confirmed at publish time.
Custom install Technitium DNS Server in ZimaOS
Use the official technitium/dns-server image, persist /etc/dns and reserve TCP/UDP 53. Add host networking or extra ports only when DHCP/encrypted DNS requires it.
Custom install Technitium DNS Server in the ZimaOS app ↗Use Technitium's official Docker image
Follow the current upstream deployment documentation rather than relying on outdated third-party examples.
Review Technitium DNS Server deployment guidance ↗Review current Technitium DNS Server
Use the current upstream requirements and dependency versions when preparing the container stack.
Review Technitium DNS Server requirements ↗Choose Zima hardware for Technitium DNS Server
Technitium DNS Server is lightweight; ZimaBoard 2 832 is the default recommendation for home DNS.
Is this a normal home resolver or a public/high-feature DNS service?
Home / small-office DNS
Use ZimaBoard 2 832 and reserve port 53.
- Best starting pointZimaBoard 2 832
Public DNS / heavy logging / many apps
Use more host headroom and faster network/storage if needed.
- More host headroomZimaBoard 2 1664
- Higher-throughput platformZimaCube 2 Pro
These recommendations assume home or small-office DNS, not a public internet resolver under sustained attack/load.
| Zima hardware | Best for | Example workload | Core configuration | Recommended boundary | Next step |
|---|---|---|---|---|---|
| ZimaBoard 2 832 | Home and small-office DNS. | Recursive/authoritative DNS, block lists, web console and normal logs. |
|
Port 53 conflicts are more likely to matter than CPU/RAM. | Get Now |
| ZimaBoard 2 1664 | DNS on a busy multi-app server. | Technitium plus large block lists, logs and many other services. |
|
Extra RAM is mainly for the wider host. | Get Now |
| ZimaCube 2 Pro | Public/high-throughput DNS and broader infrastructure. | Encrypted DNS, heavy logging and faster network paths. |
|
Public DNS security and DDoS exposure require more than hardware sizing. | Get Now |
What the Press Says
Highlights from trusted reviewers worldwide.
“ZimaCube 2: Not just another NAS, tested with 25TB storage, local AI agents, 4K transcoding, and real homelab workflows.”Read full review
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Avaliação ZimaBoard 2
Construí um servidor de uso pessoal. O desempenho está muito bom e funciona perfeitamente onde quer que eu esteja. A surpresa é não dependermos de grandes estruturas para termos nosso próprio servidor de dados. Como iniciante, estou gostando bastante do ZimaOS, pois ele é simples e eficiente.
Frequently asked questions
These answers cover Technitium DNS Server RAM, CPU, ports, Docker and ZimaOS deployment.
How much RAM does Technitium DNS Server need?
Technitium does not publish a numerical official server RAM minimum.
How many CPU cores does Technitium DNS Server need?
No numerical official core minimum is published.
Which port does Technitium DNS use?
Standard DNS requires TCP and UDP port 53.
Which port is the Technitium web console?
The default HTTP web console uses TCP port 5380.
Does Technitium support Docker?
Yes. The project publishes the official technitium/dns-server image and a Compose example.
Does Technitium need a GPU?
No dedicated GPU is required.
Can ZimaBoard 2 run Technitium DNS Server?
Yes. The 8 GB model is far above normal home DNS resource needs.
What should I watch when enabling DHCP?
DHCP needs direct LAN access and UDP 67; the official Compose example notes host networking for DHCP-oriented deployments.
What sources informed this Technitium DNS Server hardware guide?
Current Technitium DNS Server page, repository and official Compose configuration plus current Zima product pages.
