Knot3

Jul 20, 2023

High performance authoritative-only DNS server

Knot DNS is a high-performance authoritative-only DNS server which supports all key features of the domain name system including zone AXFR and IXFR, DDNS and DNSSEC. Its key features

  • Open source
  • High-performance, multi-threaded, and mostly lock-free implementation which scales well on SMPs
  • Object-oriented design
  • Support for all important DNS protocols
    • Full and incremental zone transfers
    • EDNS0 and DNSSEC extensions, including NSEC3
    • NSID


Checkout these related ports:
  • Zonenotify - DNS notify sender written in C
  • Zonecheck - Perform consistency checks on DNS zones
  • Zkt -
  • Yandex-ddns - Use Yandex DNS as a dynamic DNS provider
  • Yadifa - Authoritative nameserver with DNSSEC capabilities
  • Wrapsrv - DNS SRV record command line wrapper
  • Whoseip - Get information about IP addresses country code and network
  • Wdns - Low-level DNS library
  • Walker - Recover zone file information from servers that use DNSSEC
  • Void-zones-tools - Prepare a list of void zones that can be readily fed into Unbound
  • Vizone - Updates the serial number in one or more zonefiles
  • Vhostcname - Synchronize DNS with server names and aliases from Apache vhost
  • Utdns - Proxy UDP/DNS to TCP/DNS
  • Updatedd - Dynamic DNS Update Client supporting multiple services
  • Unbound - Validating, recursive, and caching DNS resolver