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## Example configuration file.## See unbound.conf(5) man page.## this is a comment.#Use this to include other text into the file.#include: "otherfile.conf"# The server clause sets the main parameters. server:	# whitespace is not necessary, but looks cleaner.	# verbosity number, 0 is least verbose. 1 is default.	verbosity: 1	# print statistics to the log (for every thread) every N seconds.	# Set to "" or 0 to disable. Default is disabled.	# statistics-interval: 0	# enable cumulative statistics, without clearing them after printing.	# statistics-cumulative: no	# enable extended statistics (query types, answer codes, status)	# printed from unbound-control. default off, because of speed.	extended-statistics: yes	# number of threads to create. 1 disables threading.	# num-threads: 1	# specify the interfaces to answer queries from by ip-address.	# The default is to listen to localhost (127.0.0.1 and ::1).	# specify 0.0.0.0 and ::0 to bind to all available interfaces.	# specify every interface[@port] on a new 'interface:' labelled line.	# The listen interfaces are not changed on reload, only on restart.	# interface: 192.0.2.153	# interface: 192.0.2.154	# interface: 192.0.2.154@5003	# interface: 2001:DB8::5	interface: 0.0.0.0	interface: ::0	# enable this feature to copy the source address of queries to reply.	# Socket options are not supported on all platforms. experimental. 	# interface-automatic: no	# port to answer queries from	# port: 53	# specify the interfaces to send outgoing queries to authoritative	# server from by ip-address. If none, the default (all) interface	# is used. Specify every interface on a 'outgoing-interface:' line.	# outgoing-interface: 192.0.2.153	# outgoing-interface: 2001:DB8::5	# outgoing-interface: 2001:DB8::6	# number of ports to allocate per thread, determines the size of the	# port range that can be open simultaneously.  About double the	# num-queries-per-thread, or, use as many as the OS will allow you.	# outgoing-range: 4096	# permit unbound to use this port number or port range for	# making outgoing queries, using an outgoing interface.	# outgoing-port-permit: 32768	# deny unbound the use this of port number or port range for	# making outgoing queries, using an outgoing interface.	# Use this to make sure unbound does not grab a UDP port that some	# other server on this computer needs. The default is to avoid	# IANA-assigned port numbers.	# outgoing-port-avoid: "3200-3208"	# number of outgoing simultaneous tcp buffers to hold per thread.	# outgoing-num-tcp: 10	# number of incoming simultaneous tcp buffers to hold per thread.	# incoming-num-tcp: 10	# buffer size for UDP port 53 incoming (SO_RCVBUF socket option).	# 0 is system default.  Use 4m to catch query spikes for busy servers.	# so-rcvbuf: 0	# EDNS reassembly buffer to advertise to UDP peers (the actual buffer	# is set with msg-buffer-size). 1480 can solve fragmentation (timeouts).	# edns-buffer-size: 4096	# buffer size for handling DNS data. No messages larger than this	# size can be sent or received, by UDP or TCP. In bytes.	# msg-buffer-size: 65552	# the amount of memory to use for the message cache.	# plain value in bytes or you can append k, m or G. default is "4Mb". 	# msg-cache-size: 4m	# the number of slabs to use for the message cache.	# the number of slabs must be a power of 2.	# more slabs reduce lock contention, but fragment memory usage.	# msg-cache-slabs: 4	# the number of queries that a thread gets to service.	# num-queries-per-thread: 1024	# if very busy, 50% queries run to completion, 50% get timeout in msec	# jostle-timeout: 200	# the amount of memory to use for the RRset cache.	# plain value in bytes or you can append k, m or G. default is "4Mb". 	# rrset-cache-size: 4m	# the number of slabs to use for the RRset cache.	# the number of slabs must be a power of 2.	# more slabs reduce lock contention, but fragment memory usage.	# rrset-cache-slabs: 4	# the time to live (TTL) value lower bound, in seconds. Default 0.	# If more than an hour could easily give trouble due to stale data.	# cache-min-ttl: 0	# the time to live (TTL) value cap for RRsets and messages in the	# cache. Items are not cached for longer. In seconds.	# cache-max-ttl: 86400	# the time to live (TTL) value for cached roundtrip times and	# EDNS version information for hosts. In seconds.	# infra-host-ttl: 900	# the time to live (TTL) value for cached lame delegations. In sec.	# infra-lame-ttl: 900	# the number of slabs to use for the Infrastructure cache.	# the number of slabs must be a power of 2.	# more slabs reduce lock contention, but fragment memory usage.	# infra-cache-slabs: 4	# the maximum number of hosts that are cached (roundtrip times, EDNS).	# infra-cache-numhosts: 10000	# the maximum size of the lame zones cached per host. in bytes.	# infra-cache-lame-size: 10k	# Enable IPv4, "yes" or "no".	# do-ip4: yes	# Enable IPv6, "yes" or "no".	# do-ip6: yes	# Enable UDP, "yes" or "no".	# do-udp: yes	# Enable TCP, "yes" or "no".	# do-tcp: yes	# Detach from the terminal, run in background, "yes" or "no".	# do-daemonize: yes	# control which clients are allowed to make (recursive) queries	# to this server. Specify classless netblocks with /size and action.	# By default everything is refused, except for localhost.	# Choose deny (drop message), refuse (polite error reply),	# allow (recursive ok), allow_snoop (recursive and nonrecursive ok)	# access-control: 0.0.0.0/0 refuse	access-control: 127.0.0.0/8 allow	# access-control: ::0/0 refuse	# access-control: ::1 allow	# access-control: ::ffff:127.0.0.1 allow	access-control: 192.168.0.0/16 allow	# if given, a chroot(2) is done to the given directory.	# i.e. you can chroot to the working directory, for example,	# for extra security, but make sure all files are in that directory.	#	# If chroot is enabled, you should pass the configfile (from the	# commandline) as a full path from the original root. After the	# chroot has been performed the now defunct portion of the config 	# file path is removed to be able to reread the config after a reload. 	#	# All other file paths (working dir, logfile, roothints, and	# key files) can be specified in several ways:	# 	o as an absolute path relative to the new root.	# 	o as a relative path to the working directory.	# 	o as an absolute path relative to the original root.	# In the last case the path is adjusted to remove the unused portion.	#	# The pid file can be absolute and outside of the chroot, it is 	# written just prior to performing the chroot and dropping permissions.	#	# Additionally, unbound may need to access /dev/random (for entropy).	# How to do this is specific to your OS.	#	# If you give "" no chroot is performed. The path must not end in a /.	# chroot: "/var/lib/unbound"	chroot: ""	# if given, user privileges are dropped (after binding port),	# and the given username is assumed. Default is user "unbound".	# If you give "" no privileges are dropped.	# username: "unbound"	# the working directory. The relative files in this config are 	# relative to this directory. If you give "" the working directory	# is not changed.	directory: "/etc/unbound"	# the log file, "" means log to stderr. 	# Use of this option sets use-syslog to "no".	# logfile: ""	# Log to syslog(3) if yes. The log facility LOG_DAEMON is used to 	# log to, with identity "unbound". If yes, it overrides the logfile.	# use-syslog: yes 	# print UTC timestamp in ascii to logfile, default is epoch in seconds.	# log-time-ascii: no	# the pid file. Can be an absolute path outside of chroot/work dir.	# pidfile: "/var/run/unbound.pid"	# file to read root hints from.	# get one from ftp://FTP.INTERNIC.NET/domain/named.cache	# root-hints: ""	# enable to not answer id.server and hostname.bind queries.	# hide-identity: no	# enable to not answer version.server and version.bind queries.	# hide-version: no	# the identity to report. Leave "" or default to return hostname.	# identity: ""	# the version to report. Leave "" or default to return package version.	# version: ""	# the target fetch policy.	# series of integers describing the policy per dependency depth. 	# The number of values in the list determines the maximum dependency 	# depth the recursor will pursue before giving up. Each integer means:	# 	-1 : fetch all targets opportunistically,	# 	0: fetch on demand,	#	positive value: fetch that many targets opportunistically.	# Enclose the list of numbers between quotes ("").	# target-fetch-policy: "3 2 1 0 0"	# Harden against very small EDNS buffer sizes. 	# harden-short-bufsize: no	# Harden against unseemly large queries.	# harden-large-queries: no	# Harden against out of zone rrsets, to avoid spoofing attempts. 	# harden-glue: yes	# Harden against receiving dnssec-stripped data. If you turn it	# off, failing to validate dnskey data for a trustanchor will 	# trigger insecure mode for that zone (like without a trustanchor).	# Default on, which insists on dnssec data for trust-anchored zones.	# harden-dnssec-stripped: yes        # Harden the referral path by performing additional queries for	# infrastructure data.  Validates the replies (if possible).	# Default off, because the lookups burden the server.  Experimental 	# implementation of draft-wijngaards-dnsext-resolver-side-mitigation.	harden-referral-path: yes	# Use 0x20-encoded random bits in the query to foil spoof attempts.	# This feature is an experimental implementation of draft dns-0x20.	use-caps-for-id: yes	# Enforce privacy of these addresses. Strips them away from answers. 	# It may cause DNSSEC validation to additionally mark it as bogus. 	# Protects against 'DNS Rebinding' (uses browser as network proxy). 	# Only 'private-domain' and 'local-data' names are allowed to have 	# these private addresses. No default.	# private-address: 10.0.0.0/8	# private-address: 172.16.0.0/12	# private-address: 192.168.0.0/16	# private-address: 192.254.0.0/16	# private-address: fd00::/8	# private-address: fe80::/10	# Allow the domain (and its subdomains) to contain private addresses.	# local-data statements are allowed to contain private addresses too.	# private-domain: "example.com"	# If nonzero, unwanted replies are not only reported in statistics,	# but also a running total is kept per thread. If it reaches the	# threshold, a warning is printed and a defensive action is taken,	# the cache is cleared to flush potential poison out of it.	# A suggested value is 10000000, the default is 0 (turned off).	# unwanted-reply-threshold: 0	# Do not query the following addresses. No DNS queries are sent there.	# List one address per entry. List classless netblocks with /size,	# do-not-query-address: 127.0.0.1/8	# do-not-query-address: ::1	# if yes, the above default do-not-query-address entries are present.	# if no, localhost can be queried (for testing and debugging).	# do-not-query-localhost: yes	# if yes, perform prefetching of almost expired message cache entries.	prefetch: yes	# if yes, perform key lookups adjacent to normal lookups.	prefetch-key: yes	# module configuration of the server. A string with identifiers	# separated by spaces. "iterator" or "validator iterator"	# module-config: "validator iterator"	# File with DLV trusted keys. Same format as trust-anchor-file.	# There can be only one DLV configured, it is trusted from root down.	# Download http://ftp.isc.org/www/dlv/dlv.isc.org.key	# dlv-anchor-file: "dlv.isc.org.key"	# File with trusted keys for validation. Specify more than one file	# with several entries, one file per entry.	# Zone file format, with DS and DNSKEY entries.	# trust-anchor-file: ""		# File with trusted keys, kept uptodate using RFC5011 probes,	# initial file like trust-anchor-file, then it stores metadata.	# Use several entries, one per domain name, to track multiple zones.	auto-trust-anchor-file: "/etc/unbound/root.key"	# Trusted key for validation. DS or DNSKEY. specify the RR on a	# single line, surrounded by "". TTL is ignored. class is IN default.	# (These examples are from August 2007 and may not be valid anymore).	# trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ=="	# trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A"	# File with trusted keys for validation. Specify more than one file	# with several entries, one file per entry. Like trust-anchor-file	# but has a different file format. Format is BIND-9 style format, 	# the trusted-keys { name flag proto algo "key"; }; clauses are read.	# trusted-keys-file: ""	# Ignore chain of trust. Domain is treated as insecure.	# domain-insecure: "example.com"	# Override the date for validation with a specific fixed date.	# Do not set this unless you are debugging signature inception	# and expiration. "" or "0" turns the feature off. 	# val-override-date: ""	# The time to live for bogus data, rrsets and messages. This avoids	# some of the revalidation, until the time interval expires. in secs.	# val-bogus-ttl: 60	# The signature inception and expiration dates are allowed to be off	# by 10% of the signature lifetime (expir-incep) from our local clock.	# This leeway is capped with a minimum and a maximum.  In seconds.	# val-sig-skew-min: 3600	# val-sig-skew-max: 86400	# Should additional section of secure message also be kept clean of	# unsecure data. Useful to shield the users of this validator from	# potential bogus data in the additional section. All unsigned data 	# in the additional section is removed from secure messages.	# val-clean-additional: yes	# Turn permissive mode on to permit bogus messages. Thus, messages	# for which security checks failed will be returned to clients,	# instead of SERVFAIL. It still performs the security checks, which	# result in interesting log files and possibly the AD bit in	# replies if the message is found secure. The default is off.	# val-permissive-mode: no	# Have the validator log failed validations for your diagnosis.	# 0: off. 1: A line per failed user query. 2: With reason and bad IP.	# val-log-level: 0	# It is possible to configure NSEC3 maximum iteration counts per	# keysize. Keep this table very short, as linear search is done.	# A message with an NSEC3 with larger count is marked insecure.	# List in ascending order the keysize and count values.	# val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500"		# instruct the auto-trust-anchor-file probing to add anchors after ttl.	# add-holddown: 2592000 # 30 days	# instruct the auto-trust-anchor-file probing to del anchors after ttl.	# del-holddown: 2592000 # 30 days	# auto-trust-anchor-file probing removes missing anchors after ttl.	# If the value 0 is given, missing anchors are not removed.	# keep-missing: 31622400 # 366 days	# the amount of memory to use for the key cache.	# plain value in bytes or you can append k, m or G. default is "4Mb". 	# key-cache-size: 4m	# the number of slabs to use for the key cache.	# the number of slabs must be a power of 2.	# more slabs reduce lock contention, but fragment memory usage.	# key-cache-slabs: 4	# the amount of memory to use for the negative cache (used for DLV).	# plain value in bytes or you can append k, m or G. default is "1Mb". 	# neg-cache-size: 1m	# a number of locally served zones can be configured.	# 	local-zone: <zone> <type>	# 	local-data: "<resource record string>"	# o deny serves local data (if any), else, drops queries. 	# o refuse serves local data (if any), else, replies with error.	# o static serves local data, else, nxdomain or nodata answer.	# o transparent gives local data, but resolves normally for other names	# o redirect serves the zone data for any subdomain in the zone.	# o nodefault can be used to normally resolve AS112 zones.	#	# defaults are localhost address, reverse for 127.0.0.1 and ::1	# and nxdomain for AS112 zones. If you configure one of these zones	# the default content is omitted, or you can omit it with 'nodefault'.	# 	# If you configure local-data without specifying local-zone, by	# default a transparent local-zone is created for the data.	#	# You can add locally served data with	# local-zone: "local." static	# local-data: "mycomputer.local. IN A 192.0.2.51"	# local-data: 'mytext.local TXT "content of text record"'	#	# You can override certain queries with	# local-data: "adserver.example.com A 127.0.0.1"	#	# You can redirect a domain to a fixed address with	# (this makes example.com, www.example.com, etc, all go to 192.0.2.3)	# local-zone: "example.com" redirect	# local-data: "example.com A 192.0.2.3"	#	# Shorthand to make PTR records, "IPv4 name" or "IPv6 name".	# You can also add PTR records using local-data directly, but then	# you need to do the reverse notation yourself.	# local-data-ptr: "192.0.2.3 www.example.com"# Python config section. To enable:# o use --with-pythonmodule to configure before compiling.# o list python in the module-config string (above) to enable.# o and give a python-script to run.python:	# Script file to load	# python-script: "/etc/unbound/ubmodule-tst.py"# Remote control config section. remote-control:	# Enable remote control with unbound-control(8) here.	# set up the keys and certificates with unbound-control-setup.	control-enable: yes	# what interfaces are listened to for remote control.	# give 0.0.0.0 and ::0 to listen to all interfaces.	control-interface: 127.0.0.1	# control-interface: ::1	# port number for remote control operations.	# control-port: 953	# unbound server key file.	# server-key-file: "/etc/unbound/unbound_server.key"	# unbound server certificate file.	# server-cert-file: "/etc/unbound/unbound_server.pem"	# unbound-control key file.	# control-key-file: "/etc/unbound/unbound_control.key"	# unbound-control certificate file.	# control-cert-file: "/etc/unbound/unbound_control.pem"# Stub zones.# Create entries like below, to make all queries for 'example.com' and # 'example.org' go to the given list of nameservers. list zero or more # nameservers by hostname or by ipaddress. If you set stub-prime to yes, # the list is treated as priming hints (default is no).# stub-zone:#	name: "example.com"#	stub-addr: 192.0.2.68#	stub-prime: no# stub-zone:#	name: "example.org"#	stub-host: ns.example.com.# Forward zones# Create entries like below, to make all queries for 'example.com' and# 'example.org' go to the given list of servers. These servers have to handle# recursion to other nameservers. List zero or more nameservers by hostname# or by ipaddress. Use an entry with name "." to forward all queries.# forward-zone:# 	name: "example.com"# 	forward-addr: 192.0.2.68# 	forward-addr: 192.0.2.73@5355  # forward to port 5355.# forward-zone:# 	name: "example.org"# 	forward-host: fwd.example.com