An example of one of the slave PDNS configuration files found in /etc/powerdns/pdns.conf

pdns.conf

# Autogenerated configuration file template
#################################
# allow-axfr-ips    If enabled, restrict zonetransfers to originate from these
#                   IP addresses
#
# allow-axfr-ips=

#################################
# allow-recursion	List of netmasks that are allowed to recurse
#
#allow-recursion=127.0.0.1

#################################
# allow-recursion-override   Local data even about hosts that don't exist will
#                            override the internet. (on/off)
#
# allow-recursion-override=

#################################
# cache-ttl	Seconds to store packets in the PacketCache
#
# cache-ttl=20

#################################
# chroot	If set, chroot to this directory for more security
#
# chroot=/var/spool/powerdns

#################################
# config-dir	Location of configuration directory (pdns.conf)
#
config-dir=/etc/powerdns

#################################
# config-name	Name of this virtual configuration - will rename the binary image
#
# config-name=

#################################
# control-console	Debugging switch - don't use
#
# control-console=no

#################################
# daemon	Operate as a daemon
#
daemon=yes

#################################
# default-soa-name	name to insert in the SOA record if none set in the backend
#
# default-soa-name=a.misconfigured.powerdns.server

#################################
# disable-axfr	Disable zonetransfers but do allow TCP queries
#
#disable-axfr=yes

#################################
# disable-tcp	Do not listen to TCP queries
#
# disable-tcp=no

#################################
# distributor-threads	Default number of Distributor (backend) threads to start
#
# distributor-threads=3

#################################
# fancy-records	Process URL and MBOXFW records
#
# fancy-records=no

#################################
# guardian	Run within a guardian process
#
guardian=yes

#################################
# launch	Which backends to launch and order to query them in
#
launch=gmysql

#################################
# lazy-recursion	Only recurse if question cannot be answered locally
#
#lazy-recursion=yes

#################################
# load-modules	Load this module - supply absolute or relative path
#
# load-modules=

#################################
# local-address	Local IP address to which we bind
#
#local-address=0.0.0.0

#################################
# local-ipv6	Local IP address to which we bind
#
# local-ipv6=

#################################
# local-port	The port on which we listen
#
local-port=53

#################################
# log-dns-details	If PDNS should log failed update requests
#
# log-dns-details=

#################################
# log-failed-updates	If PDNS should log failed update requests
#
# log-failed-updates=

#################################
# logfile	Logfile to use
#
# logfile=/var/log/pdns.log

#################################
# logging-facility	Log under a specific facility
#
# logging-facility=

#################################
# loglevel	Amount of logging. Higher is more. Do not set below 3
#
# loglevel=4

#################################
# master	Act as a master
#
# master=no

#################################
# max-queue-length	Maximum queuelength before considering situation lost
#
# max-queue-length=5000

#################################
# max-tcp-connections	Maximum number of TCP connections
#
# max-tcp-connections=10

#################################
# module-dir	Default directory for modules
#
module-dir=/usr/lib/powerdns

#################################
# negquery-cache-ttl	Seconds to store packets in the PacketCache
#
# negquery-cache-ttl=60

#################################
# out-of-zone-additional-processing	Do out of zone additional processing
#
# out-of-zone-additional-processing=no

#################################
# query-cache-ttl	Seconds to store packets in the PacketCache
#
# query-cache-ttl=20

#################################
# query-logging	Hint backends that queries should be logged
#
# query-logging=no

#################################
# queue-limit	Maximum number of milliseconds to queue a query
#
# queue-limit=1500

#################################
# query-local-address   The IP address to use as a source address for sending
#                       queries.
# query-local-address=

#################################
# receiver-threads	Number of receiver threads to launch
#
# receiver-threads=1

#################################
# recursive-cache-ttl	Seconds to store packets in the PacketCache
#
# recursive-cache-ttl=10

#################################
# recursor	If recursion is desired, IP address of a recursing nameserver
#
# recursor=

#################################
# setgid	If set, change group id to this gid for more security
#
setgid=pdns

#################################
# setuid	If set, change user id to this uid for more security
#
setuid=pdns

#################################
# skip-cname	Do not perform CNAME indirection for each query
#
# skip-cname=no

#################################
# slave	Act as a slave
#
slave=yes

#################################
# slave-cycle-interval	Reschedule failed SOA serial checks once every .. seconds
#
# slave-cycle-interval=60

#################################
# smtpredirector	Our smtpredir MX host
#
# smtpredirector=a.misconfigured.powerdns.smtp.server

#################################
# soa-minimum-ttl	Default SOA mininum ttl
#
# soa-minimum-ttl=3600

#################################
# soa-refresh-default  Default SOA refresh
#
# soa-refresh-default=10800

#################################
# soa-retry-default    Default SOA retry
#
# soa-retry-default=3600

#################################
# soa-expire-default   Default SOA expire
#
# soa-expire-default=604800

#################################
# soa-serial-offset	Make sure that no SOA serial is less than this number
#
# soa-serial-offset=0

#################################
# socket-dir	Where the controlsocket will live
#
socket-dir=/var/run

#################################
# strict-rfc-axfrs	Perform strictly rfc compliant axfrs (very slow)
#
# strict-rfc-axfrs=no

#################################
# urlredirector	Where we send hosts to that need to be url redirected
#
# urlredirector=127.0.0.1

#################################
# use-logfile	Use a log file
#
# use-logfile=yes

#################################
# webserver	Start a webserver for monitoring
#
# webserver=no

#################################
# webserver-address	IP Address of webserver to listen on
#
# webserver-address=127.0.0.1

#################################
# webserver-password	Password required for accessing the webserver
#
# webserver-password=

#################################
# webserver-port	Port of webserver to listen on
#
# webserver-port=8081

#################################
# webserver-print-arguments	If the webserver should print arguments
#
# webserver-print-arguments=no

#################################
# wildcard-url	Process URL and MBOXFW records
#
# wildcard-url=no
#
#################################
# wildcards	Honor wildcards in the database
#
# wildcards=

#################################
# version-string   What should PowerDNS return for version
#                  allowed methods are anonymous / powerdns / full / custom
version-string=powerdns

include=/etc/powerdns/pdns.d