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Authoritative DNS Server --
C Perl Perl6 DIGITAL Command Language Ragel in Ruby Host C++ Shell
Pull request Compare This branch is even with gdnsd:master.
Latest commit 8af14f9 @blblack testsuite: clean up gdnsd_extmon_helper -related path logic
This commit is mostly just to reduce future confusion.

Long ago the installation path of gdnsd_extmon_helper switched
from bindir to libexecdir, but (a) the testsuite was never updated
to reflect that and (b) the testsuite never really needed path
info/fixups for the "make installcheck" case anyways, only for
running a normal "make check" in the build dir (which is why the
wrongness here never really caused an issue).

As a minor posiive side-effect, the testsuite no longer tries to
pointlessly pre-execute gdnsd_extmon_helper in the installcheck
case, which was using the wrong path and then ignoring the error.

Build Status Coverity Scan Build Status Coverage Status


gdnsd is an Authoritative-only DNS server. The initial g stands for Geographic, as gdnsd offers a plugin system for geographic (or other sorts of) balancing, redirection, and service-state-conscious failover. The plugin system can also do things like weighted address/cname records. If you don't care about these features you can ignore them :).

gdnsd is written in C using libev and pthreads with a focus on high performance, low latency service. It does not offer any form of caching or recursive service, and does not support DNSSEC. There's a strong focus on making the code efficient, lean, and resilient. The code has a decent regression testsuite with full branch coverage on the core packet parsing and generation code, and some scripted QA tools for e.g. valgrind validation, clang-analyzer, etc.

The geographically-aware features also support the emerging EDNS Client Subnet draft ( , ) for receiving more-precise network location information from intermediate shared caches.


Project site:

Release downloads:

The code is hosted at Github:

Bug reports:

Wikified docs:

Google Group for discussion:!forum/gdnsd

See the INSTALL file for details on prerequisites and build procedure for working from the source tree or a source tarball.

The documentation is included in the source tree in POD format and installed as manpages and textfiles on installation.


gdnsd is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

gdnsd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with gdnsd. If not, see

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