- Home
- DNS Server Software
- NSD (Name Server Daemon)
On the recordRead 29 Sep 202615 facts
NSD (Name Server Daemon)
Amsterdam, Netherlands
Plans and prices
NSD
Free
Free of charge · open source · BSD license
Read 29 Sep 2026 · nlnetlabs.nl
On the record
- Community support
- Community support is best effort through the NLnet Labs forum, while the project commits to fixing security issues and software bugs.nlnetlabs.nl · read 29 Sep 2026
- Current release
- The download page lists NSD 4.15.2 as the current version, dated 02 September, 2026.nlnetlabs.nl · read 29 Sep 2026
- Intended users
- The project identifies TLD operators, DNS root servers, and others needing a fast authoritative name server as suitable users.nlnetlabs.nl · read 29 Sep 2026
- Maintainer
- NSD is developed and maintained by NLnet Labs, a non-profit Public Benefit Organisation.nlnetlabs.nl · read 29 Sep 2026
- No recursive caching
- NSD does not implement recursive caching; NLnet Labs points users needing a validating recursive caching resolver to Unbound.nlnetlabs.nl · read 29 Sep 2026
- Performance
- The project says NSD is designed for high query rates and includes simdzone, a high-performance DNS presentation format parser.nlnetlabs.nl · read 29 Sep 2026
- Professional support
- Paid support contracts offer direct access to the development team at different service levels; pricing is available by contacting Open Netlabs.nlnetlabs.nl · read 29 Sep 2026
- Protocol features
- The 4.15.2 release notes list EDNS0 padding support with DNS over TLS, additional RR types and SVCB service parameter keys, and PROXYv2 access control options.nlnetlabs.nl · read 29 Sep 2026
- Purpose
- NSD is an authoritative DNS name server designed for speed, reliability, stability, and security.nlnetlabs.nl · read 29 Sep 2026
- Security
- NSD is covered by a security patch policy, and the project publishes security advisories and security reporting information.nlnetlabs.nl · read 29 Sep 2026
- Standards
- NSD aims to serve as a reference implementation for emerging IETF standards and implements accepted RFCs according to their specifications.nlnetlabs.nl · read 29 Sep 2026
- Support terms
- The listed Gold, Silver, and Bronze support levels have response times of 4, 12, and 24 hours respectively, with service details varying by level.nlnetlabs.nl · read 29 Sep 2026
