Compiling PowerDNS Recursor

As PowerDNS Recursor is distributed with a configure script, compiling it is a matter of:

tar xf pdns-recursor-$VERSION.tar.bz2
cd pdns-recursor-$VERSION
./configure
make
make install

Getting the sources

Warning

Do not use the tarballs auto-generated by GitHub from the tags, as these are not proper release tarballs.

There are 3 ways of getting the source.

If you want the bleeding edge, you can clone the repository at GitHub and run autoreconf -vi in the pdns/recursordist directory of the clone.

You can also download snapshot tarballs.

You can also download releases on the website. These releases are PGP-signed with one of these key-ids:

There is a PGP keyblock with these keys available on https://doc.powerdns.com/powerdns-keyblock.asc.

Older releases (4.3.x and earlier) can also be signed with one of the following keys:

Dependencies

To build PowerDNS Recursor, a C++ compiler with support for C++ 2017 is required. This means gcc 5 and newer and clang 5 and newer. Furthermore, the Makefiles require GNU make, not BSD make.

By default, the Recursor requires the following libraries and headers:

Note

On Debian and Ubuntu, the following will get you the dependencies:

apt-get install libboost-dev libboost-filesystem-dev libboost-serialization-dev \
   libboost-system-dev libboost-thread-dev libboost-context-dev \
   libboost-test-dev libssl-dev libboost-test-dev g++ make pkg-config \
   libluajit-5.1-dev

Compiling from a git checkout

Source code is available on GitHub:

git clone https://github.com/PowerDNS/pdns.git

This repository contains the sources for the PowerDNS Recursor, the PowerDNS Authoritative Server, and dnsdist (a powerful DNS loadbalancer). The sources for the recursor are located in the pdns/recursordist subdirectory of the repository.

To compile from a git checkout, install the dependencies above plus ragel, automake, autoconf, libtool, virtualenv and curl. Then run:

cd pdns/pdns/recursordist/
autoreconf -vi
./configure
make

macOS Notes

If you want to compile yourself, the dependencies can be installed using Homebrew. You need to tell configure where to find OpenSSL, too:

brew install boost lua pkg-config ragel openssl
./configure PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig
make -j4

Lua scripting

To benefit from Lua scripting, as described on https://doc.powerdns.com/md/recursor/scripting/ Install Lua and development headers. PowerDNS supports Lua 5.1, 5.2, 5.3 and LuaJIT. On Debian/Ubuntu, install e.g. liblua5.2-dev to use Lua 5.2.

The configure script will automatically detect the Lua version. If more than one version of Lua is installed, the –with-lua configure flag can be set to the desired version. e.g.:

./configure --with-lua=lua51

(On older versions of Debian/Ubuntu, you’ll need to pass –with-lua=lua5.1 instead.)

Optional dependencies

Several options that can be passed to ./configure can enable and disable different features. These will require additional dependencies

ed25519 support with libsodium

The Recursor can link with libsodium to support ed25519 (DNSSEC algorithm 15). To detect libsodium, use the --with-libsodium configure option.

Changed in version 4.2.0: This option was previously --enable-libsodium

ed25519 and ed448 support with libdecaf

libdecaf is a library that allows Recursor to support ed25519 and Ed448 (DNSSEC algorithms 15 and 16). To detect libdecaf, use the --with-libdecaf configure option.

Changed in version 4.2.0: This option was previously --enable-libdecaf

Protobuf to emit DNS logs

The Recursor can log DNS query information over Protocol Buffers.

This functionality from 4.5.0 and upwards, without needing any external library. Before 4.5.0, installing the protobuf library and compiler is required to enable this functionality. The configure script will automatically detect this and bump the Boost version dependency to 1.42. To disable building this functionality before 4.5.0, use --without-protobuf.

systemd notify support

During configure, configure will attempt to detect the availability of systemd or systemd-daemon headers. To force the use of systemd (and failing configure if the headers do not exist), use --enable-systemd. To set the directory where the unit files should be installed, use --with-systemd=/path/to/unit/dir.

Note

If you want systemd support, you will need to install the corresponding development package. On Debian and Ubuntu, this means apt install libsystemd-dev.

Documentation

After compiling, run pdns_recursor –config to view the configuration options and a short description. The full documentation is online at https://doc.powerdns.com/recursor/