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Introduction to NSD: A High-Performance Authoritative DNS Name Server

NSD, designed by a team of experts, is an authoritative-only DNS name server optimized for high performance and simplicity. It eliminates features such as recursion, caching, and dynamic updates, ensuring that it remains lightweight and efficient. NSD is built from scratch with a focus on code diversity and simplicity, making it an ideal choice for DNS publishers and certain TLD servers. This presentation outlines the benefits of using NSD, its design principles, performance metrics, and its open-source availability under the BSD License.

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Introduction to NSD: A High-Performance Authoritative DNS Name Server

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Presentation Transcript

  1. nsda Name Service Daemon Alexis Yushin, Daniel Karrenberg, Olaf Kolkman, Ted Lindgreen with Erik Rozendaal, Jaap Akkerhuis, Miek Gieben, …

  2. Presentation Outline Why nsd ? What is nsd ? Who should use nsd ?

  3. Why nsd? • Code Diversity • Simplicity • Performance • Open Source

  4. What is nsd? • Authoritative-Only DNS Name Server • No recursion • No caching • No dynamic update • No zone transfers • Implemented from Scratch • High Performance Design • DNSSec Ready • Well Tested

  5. bserved Loads Zone Files Basic nsd Design Zone Compiler Responses Queries Responses daemon Responses

  6. Performance Results

  7. Performance Results

  8. Performance Results

  9. Performance Results“Marketing Version”

  10. Goals Achieved ? • Code Diversity • Totally New Design • Bug Diversity • Simplicity • Daemon kept as small as possible (~1000 lines C) • No creeping featurism (total 5684 lines C) • Performance • See above • Open Source • Yes (BSD License)

  11. Who should use NSD? • Publishers of authoritative zone info • Root Servers (some) • TLD servers • … • Who should not use nsd • Recursing name servers • Servers really needing dynamic updates • nsd-1.0.1 is available. It is stable.

  12. Questions??? • Slides and other information (will be) available from http://www.ripe.net/ • Nsd-1.0.1: http://www.nlnetlabs.nl/ nsd/index.en.html

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