Knot DNS

knot-dns.cz

High-performance authoritative DNS server

Ops & Infradnsopen-sourcednssecnetworkingauthoritative-dnsserverhigh-performance
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Knot DNS screenshot
/ About /

Knot DNS is an open-source, high-performance authoritative-only DNS server licensed under GPL 3+. It supports modern DNS features including DNSSEC signing, incremental zone transfers, dynamic updates, and response rate limiting. The server is designed for high-throughput, lock-free operation and targets platforms such as Linux, BSD, macOS, and other POSIX systems.

/ How it works /

Knot DNS operates as a lock-free, authoritative-only DNS server with configurable XDP zero-copy mode and automatic DNSSEC signing, available as open-source software for download and deployment on POSIX systems.

/ Who it's for /

system administrators, ISPs, and network operators running DNS infrastructure

/ More info /

Background.

Status
launched
Business model
open-source

Contact

/ Discovered patterns /

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