NAME

       pdns_recursor - The PowerDNS Recursor binary

SYNOPSIS

       pdns_recursor [OPTION]...

DESCRIPTION

       pdns_recursor  is a high performance, simple and secure recursing nameserver. It currently
       powers hundreds of millions internet connections.

       The recursor is configured via a configuration file, but each item in  that  file  can  be
       overridden on the command line.

       This  manpage  lists the core set of features needed to get the PowerDNS Recursor working,
       for full and up to date details head to https://doc.powerdns.com/.

EXAMPLES

       To listen on 192.0.2.53 and allow the 192.0.2.0/24 subnet to recurse, and run  as  in  the
       background, execute:

          # pdns_recursor --local-address=192.0.2.53 --allow-from=192.0.2.0/24 --daemon

       To stop the recursor by hand, run:

          # rec_control quit

       However,  the recommended way of starting and stopping the recursor is to use systemctl(1)
       or the init.d script.

OPTIONS

       For  authoritative   listing   of   options,   consult   the   online   documentation   at
       <https://doc.powerdns.com/>

       --allow-from=<networks>
              If  set,  only  allow these comma separated networks, with network mask to recurse.
              For example: 192.0.2.0/24,203.0.113.128/25.

       --auth-zones=<authzones>
              Where  authzone   is   <zonename>=<filename>.    Serve   zonename   from   filename
              authoritatively.                            For                            example:
              ds9a.nl=/var/zones/ds9a.nl,powerdns.com=/var/zones/powerdns.com.

       --chroot=<directory>
              chroot the process to directory.

       --client-tcp-timeout=<num>
              Timeout in seconds when talking to TCP clients.

       --config
              Show the current configuration.  Since  4.8.0  there  are  three  optional  values:
              --config=default to show the default configuration.  --config=diff    show modified
              options in the  current  configuration.   --config=check    to  check  the  current
              configuration for errors.

       --config-dir=<directory>
              Location  of  configuration  directory  (recursor.conf), the default depends on the
              SYSCONFDIR option at build-time, which is usually /etc/powerdns. The default can be
              found with pdns_recursor --config | grep ' config-dir='.

       --daemon
              Operate as a daemon.

       --entropy-source=<file>
              Read new entropy from file, defaults to /dev/urandom.

       --export-etc-hosts
              If  set,  this  flag  will  export  the  hostnames  and  IP  addresses mentioned in
              /etc/hosts.

       --forward-zones=<forwardzones>
              Where forwardzone is <zonename>=<address>.  Queries for zonename will be  forwarded
              to address. address should be an IP address, not a hostname (to prevent chicken and
              egg      problems).      Example:      forward-zones=      ds9a.nl=213.244.168.210,
              powerdns.com=127.0.0.1.

       --forward-zones-file=<filename>
              Similar  to  --forward-zones,  but read the options from filename.  filename should
              contain one zone per line, like: ds9a.nl=213.244.168.210.

       --help Show a summary of options.

       --hint-file=<filename>
              Load root hints from this filename

       --local-address=<address>
              Listen on address, separated by spaces or commas.  Addresses specified can  include
              port numbers; any which do not include port numbers will listen on --local-port.

       --local-port=<port>
              Listen on port.

       --log-common-errors
              If we should log rather common errors.

       --max-cache-entries=<num>
              Maximum number of entries in the main cache.

       --max-negative-ttl=<num>
              maximum number of seconds to keep a negative cached entry in memory.

       --max-tcp-clients=<num>
              Maximum number of simultaneous TCP clients.

       --max-tcp-per-client=<num>
              If set, maximum number of TCP sessions per client (IP address).

       --query-local-address=<address[,address...]>
              Use address as Source IP address when sending queries.

       --quiet
              Suppress logging of questions and answers.

       --server-id=<text>
              Return text WHen queried for 'id.server' TXT, defaults to hostname.

       --serve-rfc1918
              On  by  default,  this  makes the server authoritatively aware of: 10.in-addr.arpa,
              168.192.in-addr.arpa and 16-31.172.in-addr.arpa, which  saves  load  on  the  AS112
              servers. Individual parts of these zones can still be loaded or forwarded.

       --setgid=<gid>
              If set, change group id to gid for more security.

       --setuid=<uid>
              If set, change user id to uid for more security.

       --single-socket
              If set, only use a single socket for outgoing queries.

       --socket-dir=<directory>
              The controlsocket will live in directory.

       --spoof-nearmiss-max=<num>
              If non-zero, assume spoofing after this many near misses.

       --trace
              if we should output heaps of logging.

       --version-string=<text>
              text WILL be reported on version.pdns or version.bind queries.

SEE ALSO

       rec_control(1) systemctl(1) https://docs.powerdns.com/recursor

AUTHOR

       PowerDNS.COM BV

COPYRIGHT

       2001-2023, PowerDNS.COM BV

                                           Jun 30, 2023                          PDNS_RECURSOR(1)