#

# 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.

	# Needed for munin plugin

	statistics-interval: 0

	# enable cumulative statistics, without clearing them after printing.

	# Needed for munin plugin

	statistics-cumulative: no

	# enable extended statistics (query types, answer codes, status)

	# printed from unbound-control. default off, because of speed.

	# Needed for munin plugin

	extended-statistics: yes

	# number of threads to create. 1 disables threading.

	num-threads: 2

	# 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 on a new 'interface:' labelled line.

	# The listen interfaces are not changed on reload, only on restart.

	# interface: 0.0.0.0

	# interface: ::0

	# interface: 192.0.2.153

	# interface: 192.0.2.154

	# interface: 2001:DB8::5

	#

	# for dns over tls and raw dns over port 80

	# interface: 0.0.0.0@443

	# interface: ::0@443

	# interface: 0.0.0.0@80

	# interface: ::0@80

	# enable this feature to copy the source address of queries to reply.

	# Socket options are not supported on all platforms. experimental.

	# interface-automatic: yes

	#

	# NOTE: Enable this option when specifying interface 0.0.0.0 or ::0

	# NOTE: Disabled per Fedora policy not to listen to * on default install

	# NOTE: If deploying on non-default port, eg 80/443, this needs to be disabled

	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.

	# 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

	# buffer size for UDP port 53 outgoing (SO_SNDBUF socket option).

	# 0 is system default.  Use 4m to handle spikes on very busy servers.

	# so-sndbuf: 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, lameness

	# and EDNS version information for hosts. In seconds.

	# infra-host-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, EDNS, lame).

	# infra-cache-numhosts: 10000

	# Enable IPv4, "yes" or "no".

	# do-ip4: yes

	# Enable IPv6, "yes" or "no".

	# do-ip6: yes

	# Enable UDP, "yes" or "no".

	# NOTE: if setting up an unbound on tls443 for public use, you might want to

	# disable UDP to avoid being used in DNS amplification attacks.

	# do-udp: yes

	# Enable TCP, "yes" or "no".

	# do-tcp: yes

	# upstream connections use TCP only (and no UDP), "yes" or "no"

	# useful for tunneling scenarios, default no.

	# tcp-upstream: no

	# 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

	# 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: yes

	# the pid file. Can be an absolute path outside of chroot/work dir.

	pidfile: "/var/run/unbound/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 against queries that fall under dnssec-signed nxdomain names.

	harden-below-nxdomain: 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.

	# (this now fails on all GoDaddy customer domains, so disabled)

	use-caps-for-id: no

	# 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: 10000000

	# 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

	# if yes, Unbound rotates RRSet order in response.

	rrset-roundrobin: yes

	# if yes, Unbound doesn't insert authority/additional sections

	# into response messages when those sections are not required.

	minimal-responses: 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.

	# Downloaded from https://secure.isc.org/ops/dlv/dlv.isc.org.key

	dlv-anchor-file: "/etc/unbound/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: ""

	# 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: ""

	#

	# trusted-keys-file: /etc/unbound/rootkey.bind

	trusted-keys-file: /etc/unbound/keys.d/*.key

	auto-trust-anchor-file: "/var/lib/unbound/root.key"

	# 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 lifetime of the signature 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.

	# NOTE: TURNING THIS ON DISABLES ALL DNSSEC SECURITY

	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: 1

	# 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 serves 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.

	# o typetransparent resolves normally for other types and other names

	#

	# 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"

	include: /etc/unbound/local.d/*.conf

	# service clients over SSL (on the TCP sockets), with plain DNS inside

	# the SSL stream.  Give the certificate to use and private key.

	# default is "" (disabled).  requires restart to take effect.

	# ssl-service-key: "/etc/unbound/unbound_server.key"

	# ssl-service-pem: "/etc/unbound/unbound_server.pem"

	# ssl-port: 443

	# request upstream over SSL (with plain DNS inside the SSL stream).

	# Default is no.  Can be turned on and off with unbound-control.

	# ssl-upstream: no

## 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.

	# Note: required for unbound-munin package

	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 and Forward zones

include: /etc/unbound/conf.d/*.conf

# 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.

# You can now also dynamically create and delete stub-zone's using

# unbound-control stub_add domain.com 1.2.3.4 5.6.7.8

# unbound-control stub_remove domain.com 1.2.3.4 5.6.7.8

# 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.

# If you enable forward-first, it attempts without the forward if it fails.

# forward-zone:

# 	name: "example.com"

# 	forward-addr: 192.0.2.68

# 	forward-addr: 192.0.2.73@5355  # forward to port 5355.

# 	forward-first: no

# forward-zone:

# 	name: "example.org"

# 	forward-host: fwd.example.com

#

# You can now also dynamically create and delete forward-zone's using

# unbound-control forward_add domain.com 1.2.3.4 5.6.7.8

# unbound-control forward_remove domain.com 1.2.3.4 5.6.7.8