NAME

       pdns_recursor - high-performance, simple and secure recursing nameserver

SYNOPSIS

       pdns_recursor [--daemon] [--local-address] [--help, -h] [--allow-from]

DESCRIPTION

       pdns_recursor(1) is a high performance, simple and secure recursing nameserver. It
       currently powers over two million 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 http://doc.powerdns.com/built-in-recursor.html

EXAMPLES

       To listen on 1.2.3.4 and allow the 1.2.3.0/8 subnet to recurse, and run as a daemon,
       execute:

           # pdns_recursor --local-address=1.2.3.4 --allow-from=1.2.3.0/8 --daemon

       To stop the recursor by hand, run:

           # rec_control quit

           Alternatively, use the init.d script provided.

OPTIONS

       For authoritative listing of options, consult the documentation referenced above.

       --aaaa-additional-processing
           turn on to do AAAA additional processing (slow)

       --allow-from
           If set, only allow these comma separated netmasks to recurse

       --auth-can-lower-ttl
           Authoritative zones can transmit a TTL value that is lower than that specified in the
           parent zone. This is called a delegation inconsistency. To follow RFC 2181 paragraphs
           5.2 and 5.4 to the letter, enable this feature. This will mean a slight deterioration
           of performance, and it will not solve any problems, but does make the recursor more
           standards compliant. Not recommended unless you have to tick an RFC 2181 compliant
           box. Off by default.

       --auth-zones
           Comma separated list of zonename=filename pairs. Zones read from these files are
           served authoritatively. Example: auth-zones= ds9a.nl=/var/zones/ds9a.nl,
           powerdns.com=/var/zones/powerdns.com. Available since 3.1.

       --chroot
           switch to chroot jail

       --client-tcp-timeout
           Timeout in seconds when talking to TCP clients

       --config-dir
           Location of configuration directory (recursor.conf)

       --daemon
           Operate as a daemon

       --delegation-only
           Which domains we only accept delegations from

       --entropy-source
           Where to read new entropy from, defaults to /dev/urandom.

       --export-etc-hosts
           If set, this flag will export the host names and IP addresses mentioned in /etc/hosts.
           Available since 3.1.

       --fork
           If set, fork the daemon for possible double performance

       --forward-zones
           Comma separated list of zonename=IP pairs. Queries for zones listed here will be
           forwarded to the IP address listed. forward-zones= ds9a.nl=213.244.168.210,
           powerdns.com=127.0.0.1. Available since 3.1. For more details, see the manual.

       --forward-zones-file
           listed here will be forwarded to the IP address listed. One zone per line, like:
           ds9a.nl=213.244.168.210 Available since 3.1.5. For more details, see the manual.

       --hint-file
           If set, load root hints from this file

       --local-address
           IP addresses to listen on, separated by spaces or commas

       --local-port
           port to listen on

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

       --max-cache-entries
           If set, maximum number of entries in the main cache

       --max-negative-ttl
           maximum number of seconds to keep a negative cached entry in memory

       --max-tcp-clients
           Maximum number of simultaneous TCP clients

       --max-tcp-per-client
           If set, maximum number of TCP sessions per client (IP address)

       --query-local-address
           Source IP address for sending queries

       --query-local-address6
           Send out local IPv6 queries from this address. Disabled by default, which also
           disables outgoing IPv6 support. A useful setting is ::0.

       --quiet
           Suppress logging of questions and answers

       --remotes-ringbuffer-entries
           maximum number of packets to store statistics for

       --server-id
           Returned when queried for server.id 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
           If set, change group id to this gid for more security

       --setuid
           If set, change user id to this uid for more security

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

       --socket-dir
           Where the controlsocket will live

       --spoof-nearmiss-max
           If non-zero, assume spoofing after this many near misses

       --trace
           if we should output heaps of logging

       --version-string
           string reported on version.pdns or version.bind

BUGS

       None known. File new ones at http://wiki.powerdns.com.

AUTHOR

       Written by PowerDNS.COM BV, bert hubert, <bert.hubert@netherlabs.nl[1]>

RESOURCES

       Website: http://wiki.powerdns.com, http://www.powerdns.com

SEE ALSO

       rec_control(1)

COPYING

       Copyright © 2006 PowerDNS.COM BV. Free use of this software is granted under the terms of
       the GNU General Public License (GPL) version 2.

NOTES

        1. bert.hubert@netherlabs.nl
           mailto:bert.hubert@netherlabs.nl

  3.0                                       09/17/2013                           PDNS_RECURSOR(1)