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Last update: 2021-01-13

Announcement: NSD 2.0.0

Independent lab for Internet infrastructure development

NSD is an authoritative only, high performance, simple and open source name server, which is being developed at NLnet Labs. You can download NSD from

This release is a major release. The most important new feature is experimental support for DNSSEC. This support is disabled by default until the DNSSEC standards are finalized. Also new is a lex/yacc based zone parser that should be RFC compliant.

Since NSD 1.2.4 there are major internal code changes: the database format is much more compact and responses are generated on-the-fly instead of being precompiled in the database. These changes were made to make DNSSEC implementation easier. See the presentation for a description of these changes and the performance impact.

NSD 2.0.0 has been fully regression tested against bind 8.4.4 and NSD 1.2.4 using the root and .nl zones. Please read the README document for configuration and installation instructions.

Project NLnet Labs

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