Stichting NLnet Labs (NLnet Labs for short) is a not-for-profit foundation founded in 1999 in the Netherlands. Its statutes define its objectives: to develop Open Source software and open standards for the benefit of the Internet.
NLnet Labs' mission is:
To provide globally recognized innovations and expertise for those technologies that turn a network of networks into an Open Internet for All.
» Read more about Labs.

NLnet Labs is a charitable foundation (ANBI) and our main source of income is a subsidy from SIDN and a subsidy from the NLnet Foundation. As we're moving forward and need to ensure our continuity, we welcome your support! In order to develop a sustainable income, we invite you to consider our Support and SLA services, provided by Open Netlabs BV being a 100% subsidiary of NLnet Labs.
» Read more about our funding.

Software updates

NSD 4.1.16 released

Tue, 25 Apr 2017
This release contains the minimal response nsd.conf option and bug fixes.
NSD project page. Direct Download.

Unbound 1.6.2 released

Mon, 24 Apr 2017
Unbound 1.6.2 has a couple of new features and a list of bug fixes. trustanchor.unbound chaos query, response IP actions, stats from shm, --disable-sha1, dnscrypt support, and edns client subnet support merged in.
Unbound website. Direct Download. Changes.

getdns 1.1.0 released

Thu, 13 Apr 2017
Functions for serving DNS. Stubby on board!
Announcement. Direct Download. API specification. Doxygen documentation.

Net::DNS 1.09 released

Fri, 24 Mar 2017

Unbound 1.6.1 released

Tue, 21 Feb 2017
Unbound 1.6.1 has the 2017 root trust anchor in unbound-anchor. The libunbound API has changed slightly, the callback typedef ends in _type. Source IP ratelimiting, log-replies, and the release also has other new features and bug fixes.
Unbound website. Direct Download. Changes.

ldns 1.7.0 released

Tue, 20 Dec 2016
Bugfixes and maintenance work, DANE verification delegated to OpenSSL functions, OpenSSL 1.1.0 support
ldns project page. Direct Download. Changes.

DNSSEC trigger 0.13

Thu, 15 Dec 2016
Updated included binaries and installer for OSX.
DNSSEC trigger project page. source. install exe. install dmg. Changes.

Net::DNS::SEC 1.03 released

Fri, 26 Aug 2016

NSD 3.2.22 released

Tue, 14 Jun 2016
Bug fixes accrued before end of support. Note that 3.2.x has end-of-support.
NSD project page. Direct Download.


NLnet Labs Annual Report 2015

Thu, 30 June 2016
We are happy to present NLnet Labs Annual report 2015. In it we present an overview of Labs' various activities and describe their impact.
Annual Report 2015 (PDF).

BGP Route Leaks Analysis

Fri, 6 Mar 2015
A route leak is a violation of the policies between the networks involved. In this project, we obtain routing information from differecent sources and make inferences to detect possible route leaks. These potential route leaks have been further investigated on their duration, the type of violation, and the type and origin of network that caused the leak-detection.
MSc. report (PDF).

BGP Evolution Analysis

Thu, 31 Jul 2014
The Internet has been growing rapidly for many years. A logical consequence of the growth trend is the increase in effort to discover reachability and routing information of all the networks. The project investigates the different components which together form the actual update message signal and tries to find a reason behind the growth factor.
MSc. report (PDF).

Measuring the Deployment of DNSSEC over the Internet

Thu, 2 Jul 2014
The deployment of DNSSEC is measured with the RIPE Atlas infrastructure. The results provide new insight on the distribution of DNSSEC support among resolvers, and notably show that around 90% of resolvers are DNSSEC-aware, and about 30% validate answers.
MSc. report (PDF).

Open Data Analysis to Retrieve Sensitive Information Regarding National-Centric Critical Infrastructures

Mon, 3 Feb 2014
Open Data repositories store a variety of information from country governments and private sectors. A concern is that with publishing data, sensitive information can be obtained by visual analytic techniques. The report shows that it is possible to retrieve precise locations where critical infrastructures overlap.
MSc. report (PDF).


CDAR Root Stability Study commissioned by ICANN

Thu, 3 Dec 2015
NLnet Labs, SIDN and TNO have been commissioned by ICANN to examine the impact of the new gTLD programme on the root server system.
Press release.

Akkerhuis selected for DNS Root Zone KSK design team

Thu, 5 Feb 2015
Jaap Akkerhuis from NLnet Labs has been selected for the DNS Root Zone KSK rollover plan design team.
ICANN Announcements.

Recent blog posts

Thu, 22 Dec 2016 by Ralph Dolmans
We noticed a demand from resolver operators to depend DNS answers on the address of the client. The tag functionality introduced in Unbound 1.5.10 and the new views functionality in Unbound 1.6.0 meet these wishes. Tags Unbound’s tags functionality makes it possible to divide client source addresses in categories (tags), and use local-zone and local-data [...]
Tue, 16 Aug 2016 by yuri
“I Can’t Believe It’s Not DNS!” is an authoritative DNS server on ESP8266 written in MicroPython. It has the following anti-features: No storage of zone files, AXFR each boot. DNSSEC filtering. TSIG-less AXFR support! Notify ‘handling’. Highly optimized: no sanity checks. Jumping on the Bandwagon The Espressif ESP8266 is one of the favorite microcontrollers of IoT-Hipsters for some [...]
Thu, 29 Oct 2015 by yuri
Erratum: Unfortunately it appears that this method does not work for OpenDNSSEC 1.4.x. It still works for 1.3.x, specifically 1.3.18 is tested (thanks Michał Kępień!). The current version of OpenDNSSEC is unable to perform an algorithm rollover. Blindly changing the KSK and ZSK algorithm in the kasp.xml will result in a bogus zone. The only option ...
Fri, 19 Sep 2014 by wouter
NSD 4.1: zonefile-mode and fork fix Use zone files and not nsd.db NSD 4.1 has been released and it contains a new feature where NSD does not use the nsd.db file, but uses the zonefiles directly.  The feature can be turned on by configuring one line in nsd.conf, it can also be turned off by ...

Tue Aug 16 2016

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labs@nlnetlabs.nl, subsidised by NLnet and SIDN.