Welcome to the PowerDNS Blog
How PowerDNS is Open Source & a successful business, or, why are we tal...
What does PowerDNS actually do? This is a good question, one we can ask about any company. How do they stay alive, what services do they deliver, who do they sell them to? For Open Source companies, the question ...
PowerDNS Recursor 4.2.0 Beta 1 Released
The Beta 1 release comes with a lot of bug fixes, improvements and also some new features: Add a new max-cache-bogus-ttl option to cap the TTL of a record that has been validated as Bogus in the query cache, so i...
PowerDNS Recursor 4.1.12 Released
This is a maintenance release with improvements for high-performance sites (and a wild bug fix appeared). The changelog: #7634: Use a bounded load-balancing algo to distribute queries. #7651: Implement a configur...
PowerDNS Recursor 4.1.11 Released
Since Spectre / Meltdown, system calls have become more expensive. In addition, relevant versions of glibc turn out to implement pthread_cond_wait and pthread_cond_signal in such a way that they use multiple syst...
Changes in the PowerDNS Recursor 4.2.0
The 4.2.0 release of the PowerDNS Recursor brings a lot of small, incremental changes over the 4.1.x releases. We expect little operational impact when upgrading from 4.1.x. However, several new features have bee...
PowerDNS Recursor 4.1.10 Released
This release is only relevant when building PowerDNS Recursor from source with protobuf support disabled. Release 4.1.10 fixes a bug where the recursor would not build when one had protobuf support disabled. The ...
PowerDNS Recursor 4.1.9 Released
We are very happy to announce the 4.1.9 release of the PowerDNS Recursor. This release is fixing two security issues, and addressing a shortcoming in the way incoming queries are distributed to threads under heav...
Enabling continuous fuzzing of PowerDNS products
We are very happy to announce that PowerDNS recently joined the OSS-Fuzz initiative, enabling continuous fuzzing for critical parts of our products. We are taking this opportunity to share some of our existing se...
PowerDNS Recursor 4.1.8 Released
We’ve released PowerDNS Recursor 4.1.8. This release fixes Security Advisory 2018-09 that we recently discovered, affecting PowerDNS Recursor from 4.1.0 up to and including 4.1.7. PowerDNS Recursor 4.0.x and belo...
PowerDNS Recursor 4.1.7 Released
Today we have released the PowerDNS Recursor 4.1.7. It is an update to relax EDNS compliance requirements from upstream authoritative servers. Recursor version 4.1.5 (and, by extension, 4.1.6), contains a fix for...