xref: /freebsd/contrib/unbound/doc/example.conf (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e)
1#
2# Example configuration file.
3#
4# See unbound.conf(5) man page, version 1.15.0.
5#
6# this is a comment.
7
8# Use this anywhere in the file to include other text into this file.
9#include: "otherfile.conf"
10
11# Use this anywhere in the file to include other text, that explicitly starts a
12# clause, into this file. Text after this directive needs to start a clause.
13#include-toplevel: "otherfile.conf"
14
15# The server clause sets the main parameters.
16server:
17	# whitespace is not necessary, but looks cleaner.
18
19	# verbosity number, 0 is least verbose. 1 is default.
20	verbosity: 1
21
22	# print statistics to the log (for every thread) every N seconds.
23	# Set to "" or 0 to disable. Default is disabled.
24	# statistics-interval: 0
25
26	# enable shm for stats, default no.  if you enable also enable
27	# statistics-interval, every time it also writes stats to the
28	# shared memory segment keyed with shm-key.
29	# shm-enable: no
30
31	# shm for stats uses this key, and key+1 for the shared mem segment.
32	# shm-key: 11777
33
34	# enable cumulative statistics, without clearing them after printing.
35	# statistics-cumulative: no
36
37	# enable extended statistics (query types, answer codes, status)
38	# printed from unbound-control. default off, because of speed.
39	# extended-statistics: no
40
41	# number of threads to create. 1 disables threading.
42	# num-threads: 1
43
44	# specify the interfaces to answer queries from by ip-address.
45	# The default is to listen to localhost (127.0.0.1 and ::1).
46	# specify 0.0.0.0 and ::0 to bind to all available interfaces.
47	# specify every interface[@port] on a new 'interface:' labelled line.
48	# The listen interfaces are not changed on reload, only on restart.
49	# interface: 192.0.2.153
50	# interface: 192.0.2.154
51	# interface: 192.0.2.154@5003
52	# interface: 2001:DB8::5
53
54	# enable this feature to copy the source address of queries to reply.
55	# Socket options are not supported on all platforms. experimental.
56	# interface-automatic: no
57
58	# port to answer queries from
59	# port: 53
60
61	# specify the interfaces to send outgoing queries to authoritative
62	# server from by ip-address. If none, the default (all) interface
63	# is used. Specify every interface on a 'outgoing-interface:' line.
64	# outgoing-interface: 192.0.2.153
65	# outgoing-interface: 2001:DB8::5
66	# outgoing-interface: 2001:DB8::6
67
68	# Specify a netblock to use remainder 64 bits as random bits for
69	# upstream queries.  Uses freebind option (Linux).
70	# outgoing-interface: 2001:DB8::/64
71	# Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo
72	# And: ip -6 route add local 2001:db8::/64 dev lo
73	# And set prefer-ip6: yes to use the ip6 randomness from a netblock.
74	# Set this to yes to prefer ipv6 upstream servers over ipv4.
75	# prefer-ip6: no
76
77	# Prefer ipv4 upstream servers, even if ipv6 is available.
78	# prefer-ip4: no
79
80	# number of ports to allocate per thread, determines the size of the
81	# port range that can be open simultaneously.  About double the
82	# num-queries-per-thread, or, use as many as the OS will allow you.
83	# outgoing-range: 4096
84
85	# permit Unbound to use this port number or port range for
86	# making outgoing queries, using an outgoing interface.
87	# outgoing-port-permit: 32768
88
89	# deny Unbound the use this of port number or port range for
90	# making outgoing queries, using an outgoing interface.
91	# Use this to make sure Unbound does not grab a UDP port that some
92	# other server on this computer needs. The default is to avoid
93	# IANA-assigned port numbers.
94	# If multiple outgoing-port-permit and outgoing-port-avoid options
95	# are present, they are processed in order.
96	# outgoing-port-avoid: "3200-3208"
97
98	# number of outgoing simultaneous tcp buffers to hold per thread.
99	# outgoing-num-tcp: 10
100
101	# number of incoming simultaneous tcp buffers to hold per thread.
102	# incoming-num-tcp: 10
103
104	# buffer size for UDP port 53 incoming (SO_RCVBUF socket option).
105	# 0 is system default.  Use 4m to catch query spikes for busy servers.
106	# so-rcvbuf: 0
107
108	# buffer size for UDP port 53 outgoing (SO_SNDBUF socket option).
109	# 0 is system default.  Use 4m to handle spikes on very busy servers.
110	# so-sndbuf: 0
111
112	# use SO_REUSEPORT to distribute queries over threads.
113	# at extreme load it could be better to turn it off to distribute even.
114	# so-reuseport: yes
115
116	# use IP_TRANSPARENT so the interface: addresses can be non-local
117	# and you can config non-existing IPs that are going to work later on
118	# (uses IP_BINDANY on FreeBSD).
119	# ip-transparent: no
120
121	# use IP_FREEBIND so the interface: addresses can be non-local
122	# and you can bind to nonexisting IPs and interfaces that are down.
123	# Linux only.  On Linux you also have ip-transparent that is similar.
124	# ip-freebind: no
125
126	# the value of the Differentiated Services Codepoint (DSCP)
127	# in the differentiated services field (DS) of the outgoing
128	# IP packets
129	# ip-dscp: 0
130
131	# EDNS reassembly buffer to advertise to UDP peers (the actual buffer
132	# is set with msg-buffer-size).
133	# edns-buffer-size: 1232
134
135	# Maximum UDP response size (not applied to TCP response).
136	# Suggested values are 512 to 4096. Default is 4096. 65536 disables it.
137	# max-udp-size: 4096
138
139	# max memory to use for stream(tcp and tls) waiting result buffers.
140	# stream-wait-size: 4m
141
142	# buffer size for handling DNS data. No messages larger than this
143	# size can be sent or received, by UDP or TCP. In bytes.
144	# msg-buffer-size: 65552
145
146	# the amount of memory to use for the message cache.
147	# plain value in bytes or you can append k, m or G. default is "4Mb".
148	# msg-cache-size: 4m
149
150	# the number of slabs to use for the message cache.
151	# the number of slabs must be a power of 2.
152	# more slabs reduce lock contention, but fragment memory usage.
153	# msg-cache-slabs: 4
154
155	# the number of queries that a thread gets to service.
156	# num-queries-per-thread: 1024
157
158	# if very busy, 50% queries run to completion, 50% get timeout in msec
159	# jostle-timeout: 200
160
161	# msec to wait before close of port on timeout UDP. 0 disables.
162	# delay-close: 0
163
164	# perform connect for UDP sockets to mitigate ICMP side channel.
165	# udp-connect: yes
166
167	# The number of retries when a non-positive response is received.
168	# outbound-msg-retry: 5
169
170	# msec for waiting for an unknown server to reply.  Increase if you
171	# are behind a slow satellite link, to eg. 1128.
172	# unknown-server-time-limit: 376
173
174	# the amount of memory to use for the RRset cache.
175	# plain value in bytes or you can append k, m or G. default is "4Mb".
176	# rrset-cache-size: 4m
177
178	# the number of slabs to use for the RRset cache.
179	# the number of slabs must be a power of 2.
180	# more slabs reduce lock contention, but fragment memory usage.
181	# rrset-cache-slabs: 4
182
183	# the time to live (TTL) value lower bound, in seconds. Default 0.
184	# If more than an hour could easily give trouble due to stale data.
185	# cache-min-ttl: 0
186
187	# the time to live (TTL) value cap for RRsets and messages in the
188	# cache. Items are not cached for longer. In seconds.
189	# cache-max-ttl: 86400
190
191	# the time to live (TTL) value cap for negative responses in the cache
192	# cache-max-negative-ttl: 3600
193
194	# the time to live (TTL) value for cached roundtrip times, lameness and
195	# EDNS version information for hosts. In seconds.
196	# infra-host-ttl: 900
197
198	# minimum wait time for responses, increase if uplink is long. In msec.
199	# infra-cache-min-rtt: 50
200
201	# enable to make server probe down hosts more frequently.
202	# infra-keep-probing: no
203
204	# the number of slabs to use for the Infrastructure cache.
205	# the number of slabs must be a power of 2.
206	# more slabs reduce lock contention, but fragment memory usage.
207	# infra-cache-slabs: 4
208
209	# the maximum number of hosts that are cached (roundtrip, EDNS, lame).
210	# infra-cache-numhosts: 10000
211
212	# define a number of tags here, use with local-zone, access-control.
213	# repeat the define-tag statement to add additional tags.
214	# define-tag: "tag1 tag2 tag3"
215
216	# Enable IPv4, "yes" or "no".
217	# do-ip4: yes
218
219	# Enable IPv6, "yes" or "no".
220	# do-ip6: yes
221
222	# Enable UDP, "yes" or "no".
223	# do-udp: yes
224
225	# Enable TCP, "yes" or "no".
226	# do-tcp: yes
227
228	# upstream connections use TCP only (and no UDP), "yes" or "no"
229	# useful for tunneling scenarios, default no.
230	# tcp-upstream: no
231
232	# upstream connections also use UDP (even if do-udp is no).
233	# useful if if you want UDP upstream, but don't provide UDP downstream.
234	# udp-upstream-without-downstream: no
235
236	# Maximum segment size (MSS) of TCP socket on which the server
237	# responds to queries. Default is 0, system default MSS.
238	# tcp-mss: 0
239
240	# Maximum segment size (MSS) of TCP socket for outgoing queries.
241	# Default is 0, system default MSS.
242	# outgoing-tcp-mss: 0
243
244	# Idle TCP timeout, connection closed in milliseconds
245	# tcp-idle-timeout: 30000
246
247	# Enable EDNS TCP keepalive option.
248	# edns-tcp-keepalive: no
249
250	# Timeout for EDNS TCP keepalive, in msec.
251	# edns-tcp-keepalive-timeout: 120000
252
253	# Use systemd socket activation for UDP, TCP, and control sockets.
254	# use-systemd: no
255
256	# Detach from the terminal, run in background, "yes" or "no".
257	# Set the value to "no" when Unbound runs as systemd service.
258	# do-daemonize: yes
259
260	# control which clients are allowed to make (recursive) queries
261	# to this server. Specify classless netblocks with /size and action.
262	# By default everything is refused, except for localhost.
263	# Choose deny (drop message), refuse (polite error reply),
264	# allow (recursive ok), allow_setrd (recursive ok, rd bit is forced on),
265	# allow_snoop (recursive and nonrecursive ok)
266	# deny_non_local (drop queries unless can be answered from local-data)
267	# refuse_non_local (like deny_non_local but polite error reply).
268	# access-control: 0.0.0.0/0 refuse
269	# access-control: 127.0.0.0/8 allow
270	# access-control: ::0/0 refuse
271	# access-control: ::1 allow
272	# access-control: ::ffff:127.0.0.1 allow
273
274	# tag access-control with list of tags (in "" with spaces between)
275	# Clients using this access control element use localzones that
276	# are tagged with one of these tags.
277	# access-control-tag: 192.0.2.0/24 "tag2 tag3"
278
279	# set action for particular tag for given access control element
280	# if you have multiple tag values, the tag used to lookup the action
281	# is the first tag match between access-control-tag and local-zone-tag
282	# where "first" comes from the order of the define-tag values.
283	# access-control-tag-action: 192.0.2.0/24 tag3 refuse
284
285	# set redirect data for particular tag for access control element
286	# access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1"
287
288	# Set view for access control element
289	# access-control-view: 192.0.2.0/24 viewname
290
291	# if given, a chroot(2) is done to the given directory.
292	# i.e. you can chroot to the working directory, for example,
293	# for extra security, but make sure all files are in that directory.
294	#
295	# If chroot is enabled, you should pass the configfile (from the
296	# commandline) as a full path from the original root. After the
297	# chroot has been performed the now defunct portion of the config
298	# file path is removed to be able to reread the config after a reload.
299	#
300	# All other file paths (working dir, logfile, roothints, and
301	# key files) can be specified in several ways:
302	# 	o as an absolute path relative to the new root.
303	# 	o as a relative path to the working directory.
304	# 	o as an absolute path relative to the original root.
305	# In the last case the path is adjusted to remove the unused portion.
306	#
307	# The pid file can be absolute and outside of the chroot, it is
308	# written just prior to performing the chroot and dropping permissions.
309	#
310	# Additionally, Unbound may need to access /dev/urandom (for entropy).
311	# How to do this is specific to your OS.
312	#
313	# If you give "" no chroot is performed. The path must not end in a /.
314	# chroot: "@UNBOUND_CHROOT_DIR@"
315
316	# if given, user privileges are dropped (after binding port),
317	# and the given username is assumed. Default is user "unbound".
318	# If you give "" no privileges are dropped.
319	# username: "@UNBOUND_USERNAME@"
320
321	# the working directory. The relative files in this config are
322	# relative to this directory. If you give "" the working directory
323	# is not changed.
324	# If you give a server: directory: dir before include: file statements
325	# then those includes can be relative to the working directory.
326	# directory: "@UNBOUND_RUN_DIR@"
327
328	# the log file, "" means log to stderr.
329	# Use of this option sets use-syslog to "no".
330	# logfile: ""
331
332	# Log to syslog(3) if yes. The log facility LOG_DAEMON is used to
333	# log to. If yes, it overrides the logfile.
334	# use-syslog: yes
335
336	# Log identity to report. if empty, defaults to the name of argv[0]
337	# (usually "unbound").
338	# log-identity: ""
339
340	# print UTC timestamp in ascii to logfile, default is epoch in seconds.
341	# log-time-ascii: no
342
343	# print one line with time, IP, name, type, class for every query.
344	# log-queries: no
345
346	# print one line per reply, with time, IP, name, type, class, rcode,
347	# timetoresolve, fromcache and responsesize.
348	# log-replies: no
349
350	# log with tag 'query' and 'reply' instead of 'info' for
351	# filtering log-queries and log-replies from the log.
352	# log-tag-queryreply: no
353
354	# log the local-zone actions, like local-zone type inform is enabled
355	# also for the other local zone types.
356	# log-local-actions: no
357
358	# print log lines that say why queries return SERVFAIL to clients.
359	# log-servfail: no
360
361	# the pid file. Can be an absolute path outside of chroot/work dir.
362	# pidfile: "@UNBOUND_PIDFILE@"
363
364	# file to read root hints from.
365	# get one from https://www.internic.net/domain/named.cache
366	# root-hints: ""
367
368	# enable to not answer id.server and hostname.bind queries.
369	# hide-identity: no
370
371	# enable to not answer version.server and version.bind queries.
372	# hide-version: no
373
374	# enable to not answer trustanchor.unbound queries.
375	# hide-trustanchor: no
376
377	# enable to not set the User-Agent HTTP header.
378	# hide-http-user-agent: no
379
380	# the identity to report. Leave "" or default to return hostname.
381	# identity: ""
382
383	# the version to report. Leave "" or default to return package version.
384	# version: ""
385
386	# NSID identity (hex string, or "ascii_somestring"). default disabled.
387	# nsid: "aabbccdd"
388
389	# User-Agent HTTP header to use. Leave "" or default to use package name
390	# and version.
391	# http-user-agent: ""
392
393	# the target fetch policy.
394	# series of integers describing the policy per dependency depth.
395	# The number of values in the list determines the maximum dependency
396	# depth the recursor will pursue before giving up. Each integer means:
397	# 	-1 : fetch all targets opportunistically,
398	# 	0: fetch on demand,
399	#	positive value: fetch that many targets opportunistically.
400	# Enclose the list of numbers between quotes ("").
401	# target-fetch-policy: "3 2 1 0 0"
402
403	# Harden against very small EDNS buffer sizes.
404	# harden-short-bufsize: yes
405
406	# Harden against unseemly large queries.
407	# harden-large-queries: no
408
409	# Harden against out of zone rrsets, to avoid spoofing attempts.
410	# harden-glue: yes
411
412	# Harden against receiving dnssec-stripped data. If you turn it
413	# off, failing to validate dnskey data for a trustanchor will
414	# trigger insecure mode for that zone (like without a trustanchor).
415	# Default on, which insists on dnssec data for trust-anchored zones.
416	# harden-dnssec-stripped: yes
417
418	# Harden against queries that fall under dnssec-signed nxdomain names.
419	# harden-below-nxdomain: yes
420
421	# Harden the referral path by performing additional queries for
422	# infrastructure data.  Validates the replies (if possible).
423	# Default off, because the lookups burden the server.  Experimental
424	# implementation of draft-wijngaards-dnsext-resolver-side-mitigation.
425	# harden-referral-path: no
426
427	# Harden against algorithm downgrade when multiple algorithms are
428	# advertised in the DS record.  If no, allows the weakest algorithm
429	# to validate the zone.
430	# harden-algo-downgrade: no
431
432	# Sent minimum amount of information to upstream servers to enhance
433	# privacy. Only sent minimum required labels of the QNAME and set QTYPE
434	# to A when possible.
435	# qname-minimisation: yes
436
437	# QNAME minimisation in strict mode. Do not fall-back to sending full
438	# QNAME to potentially broken nameservers. A lot of domains will not be
439	# resolvable when this option in enabled.
440	# This option only has effect when qname-minimisation is enabled.
441	# qname-minimisation-strict: no
442
443	# Aggressive NSEC uses the DNSSEC NSEC chain to synthesize NXDOMAIN
444	# and other denials, using information from previous NXDOMAINs answers.
445	# aggressive-nsec: yes
446
447	# Use 0x20-encoded random bits in the query to foil spoof attempts.
448	# This feature is an experimental implementation of draft dns-0x20.
449	# use-caps-for-id: no
450
451	# Domains (and domains in them) without support for dns-0x20 and
452	# the fallback fails because they keep sending different answers.
453	# caps-exempt: "licdn.com"
454	# caps-exempt: "senderbase.org"
455
456	# Enforce privacy of these addresses. Strips them away from answers.
457	# It may cause DNSSEC validation to additionally mark it as bogus.
458	# Protects against 'DNS Rebinding' (uses browser as network proxy).
459	# Only 'private-domain' and 'local-data' names are allowed to have
460	# these private addresses. No default.
461	# private-address: 10.0.0.0/8
462	# private-address: 172.16.0.0/12
463	# private-address: 192.168.0.0/16
464	# private-address: 169.254.0.0/16
465	# private-address: fd00::/8
466	# private-address: fe80::/10
467	# private-address: ::ffff:0:0/96
468
469	# Allow the domain (and its subdomains) to contain private addresses.
470	# local-data statements are allowed to contain private addresses too.
471	# private-domain: "example.com"
472
473	# If nonzero, unwanted replies are not only reported in statistics,
474	# but also a running total is kept per thread. If it reaches the
475	# threshold, a warning is printed and a defensive action is taken,
476	# the cache is cleared to flush potential poison out of it.
477	# A suggested value is 10000000, the default is 0 (turned off).
478	# unwanted-reply-threshold: 0
479
480	# Do not query the following addresses. No DNS queries are sent there.
481	# List one address per entry. List classless netblocks with /size,
482	# do-not-query-address: 127.0.0.1/8
483	# do-not-query-address: ::1
484
485	# if yes, the above default do-not-query-address entries are present.
486	# if no, localhost can be queried (for testing and debugging).
487	# do-not-query-localhost: yes
488
489	# if yes, perform prefetching of almost expired message cache entries.
490	# prefetch: no
491
492	# if yes, perform key lookups adjacent to normal lookups.
493	# prefetch-key: no
494
495	# deny queries of type ANY with an empty response.
496	# deny-any: no
497
498	# if yes, Unbound rotates RRSet order in response.
499	# rrset-roundrobin: yes
500
501	# if yes, Unbound doesn't insert authority/additional sections
502	# into response messages when those sections are not required.
503	# minimal-responses: yes
504
505	# true to disable DNSSEC lameness check in iterator.
506	# disable-dnssec-lame-check: no
507
508	# module configuration of the server. A string with identifiers
509	# separated by spaces. Syntax: "[dns64] [validator] iterator"
510	# most modules have to be listed at the beginning of the line,
511	# except cachedb(just before iterator), and python (at the beginning,
512	# or, just before the iterator).
513	# module-config: "validator iterator"
514
515	# File with trusted keys, kept uptodate using RFC5011 probes,
516	# initial file like trust-anchor-file, then it stores metadata.
517	# Use several entries, one per domain name, to track multiple zones.
518	#
519	# If you want to perform DNSSEC validation, run unbound-anchor before
520	# you start Unbound (i.e. in the system boot scripts).
521	# And then enable the auto-trust-anchor-file config item.
522	# Please note usage of unbound-anchor root anchor is at your own risk
523	# and under the terms of our LICENSE (see that file in the source).
524	# auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
525
526	# trust anchor signaling sends a RFC8145 key tag query after priming.
527	# trust-anchor-signaling: yes
528
529	# Root key trust anchor sentinel (draft-ietf-dnsop-kskroll-sentinel)
530	# root-key-sentinel: yes
531
532	# File with trusted keys for validation. Specify more than one file
533	# with several entries, one file per entry.
534	# Zone file format, with DS and DNSKEY entries.
535	# Note this gets out of date, use auto-trust-anchor-file please.
536	# trust-anchor-file: ""
537
538	# Trusted key for validation. DS or DNSKEY. specify the RR on a
539	# single line, surrounded by "". TTL is ignored. class is IN default.
540	# Note this gets out of date, use auto-trust-anchor-file please.
541	# (These examples are from August 2007 and may not be valid anymore).
542	# trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ=="
543	# trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A"
544
545	# File with trusted keys for validation. Specify more than one file
546	# with several entries, one file per entry. Like trust-anchor-file
547	# but has a different file format. Format is BIND-9 style format,
548	# the trusted-keys { name flag proto algo "key"; }; clauses are read.
549	# you need external update procedures to track changes in keys.
550	# trusted-keys-file: ""
551
552	# Ignore chain of trust. Domain is treated as insecure.
553	# domain-insecure: "example.com"
554
555	# Override the date for validation with a specific fixed date.
556	# Do not set this unless you are debugging signature inception
557	# and expiration. "" or "0" turns the feature off. -1 ignores date.
558	# val-override-date: ""
559
560	# The time to live for bogus data, rrsets and messages. This avoids
561	# some of the revalidation, until the time interval expires. in secs.
562	# val-bogus-ttl: 60
563
564	# The signature inception and expiration dates are allowed to be off
565	# by 10% of the signature lifetime (expir-incep) from our local clock.
566	# This leeway is capped with a minimum and a maximum.  In seconds.
567	# val-sig-skew-min: 3600
568	# val-sig-skew-max: 86400
569
570	# The maximum number the validator should restart validation with
571	# another authority in case of failed validation.
572	# val-max-restart: 5
573
574	# Should additional section of secure message also be kept clean of
575	# unsecure data. Useful to shield the users of this validator from
576	# potential bogus data in the additional section. All unsigned data
577	# in the additional section is removed from secure messages.
578	# val-clean-additional: yes
579
580	# Turn permissive mode on to permit bogus messages. Thus, messages
581	# for which security checks failed will be returned to clients,
582	# instead of SERVFAIL. It still performs the security checks, which
583	# result in interesting log files and possibly the AD bit in
584	# replies if the message is found secure. The default is off.
585	# val-permissive-mode: no
586
587	# Ignore the CD flag in incoming queries and refuse them bogus data.
588	# Enable it if the only clients of Unbound are legacy servers (w2008)
589	# that set CD but cannot validate themselves.
590	# ignore-cd-flag: no
591
592	# Serve expired responses from cache, with serve-expired-reply-ttl in
593	# the response, and then attempt to fetch the data afresh.
594	# serve-expired: no
595	#
596	# Limit serving of expired responses to configured seconds after
597	# expiration. 0 disables the limit.
598	# serve-expired-ttl: 0
599	#
600	# Set the TTL of expired records to the serve-expired-ttl value after a
601	# failed attempt to retrieve the record from upstream. This makes sure
602	# that the expired records will be served as long as there are queries
603	# for it.
604	# serve-expired-ttl-reset: no
605	#
606	# TTL value to use when replying with expired data.
607	# serve-expired-reply-ttl: 30
608	#
609	# Time in milliseconds before replying to the client with expired data.
610	# This essentially enables the serve-stale behavior as specified in
611	# RFC 8767 that first tries to resolve before
612	# immediately responding with expired data.  0 disables this behavior.
613	# A recommended value is 1800.
614	# serve-expired-client-timeout: 0
615
616	# Return the original TTL as received from the upstream name server rather
617	# than the decrementing TTL as stored in the cache.  Enabling this feature
618	# does not impact cache expiry, it only changes the TTL Unbound embeds in
619	# responses to queries. Note that enabling this feature implicitly disables
620	# enforcement of the configured minimum and maximum TTL.
621	# serve-original-ttl: no
622
623	# Have the validator log failed validations for your diagnosis.
624	# 0: off. 1: A line per failed user query. 2: With reason and bad IP.
625	# val-log-level: 0
626
627	# It is possible to configure NSEC3 maximum iteration counts per
628	# keysize. Keep this table very short, as linear search is done.
629	# A message with an NSEC3 with larger count is marked insecure.
630	# List in ascending order the keysize and count values.
631	# val-nsec3-keysize-iterations: "1024 150 2048 150 4096 150"
632
633	# if enabled, ZONEMD verification failures do not block the zone.
634	# zonemd-permissive-mode: no
635
636	# instruct the auto-trust-anchor-file probing to add anchors after ttl.
637	# add-holddown: 2592000 # 30 days
638
639	# instruct the auto-trust-anchor-file probing to del anchors after ttl.
640	# del-holddown: 2592000 # 30 days
641
642	# auto-trust-anchor-file probing removes missing anchors after ttl.
643	# If the value 0 is given, missing anchors are not removed.
644	# keep-missing: 31622400 # 366 days
645
646	# debug option that allows very small holddown times for key rollover,
647	# otherwise the RFC mandates probe intervals must be at least 1 hour.
648	# permit-small-holddown: no
649
650	# the amount of memory to use for the key cache.
651	# plain value in bytes or you can append k, m or G. default is "4Mb".
652	# key-cache-size: 4m
653
654	# the number of slabs to use for the key cache.
655	# the number of slabs must be a power of 2.
656	# more slabs reduce lock contention, but fragment memory usage.
657	# key-cache-slabs: 4
658
659	# the amount of memory to use for the negative cache.
660	# plain value in bytes or you can append k, m or G. default is "1Mb".
661	# neg-cache-size: 1m
662
663	# By default, for a number of zones a small default 'nothing here'
664	# reply is built-in.  Query traffic is thus blocked.  If you
665	# wish to serve such zone you can unblock them by uncommenting one
666	# of the nodefault statements below.
667	# You may also have to use domain-insecure: zone to make DNSSEC work,
668	# unless you have your own trust anchors for this zone.
669	# local-zone: "localhost." nodefault
670	# local-zone: "127.in-addr.arpa." nodefault
671	# local-zone: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa." nodefault
672	# local-zone: "home.arpa." nodefault
673	# local-zone: "onion." nodefault
674	# local-zone: "test." nodefault
675	# local-zone: "invalid." nodefault
676	# local-zone: "10.in-addr.arpa." nodefault
677	# local-zone: "16.172.in-addr.arpa." nodefault
678	# local-zone: "17.172.in-addr.arpa." nodefault
679	# local-zone: "18.172.in-addr.arpa." nodefault
680	# local-zone: "19.172.in-addr.arpa." nodefault
681	# local-zone: "20.172.in-addr.arpa." nodefault
682	# local-zone: "21.172.in-addr.arpa." nodefault
683	# local-zone: "22.172.in-addr.arpa." nodefault
684	# local-zone: "23.172.in-addr.arpa." nodefault
685	# local-zone: "24.172.in-addr.arpa." nodefault
686	# local-zone: "25.172.in-addr.arpa." nodefault
687	# local-zone: "26.172.in-addr.arpa." nodefault
688	# local-zone: "27.172.in-addr.arpa." nodefault
689	# local-zone: "28.172.in-addr.arpa." nodefault
690	# local-zone: "29.172.in-addr.arpa." nodefault
691	# local-zone: "30.172.in-addr.arpa." nodefault
692	# local-zone: "31.172.in-addr.arpa." nodefault
693	# local-zone: "168.192.in-addr.arpa." nodefault
694	# local-zone: "0.in-addr.arpa." nodefault
695	# local-zone: "254.169.in-addr.arpa." nodefault
696	# local-zone: "2.0.192.in-addr.arpa." nodefault
697	# local-zone: "100.51.198.in-addr.arpa." nodefault
698	# local-zone: "113.0.203.in-addr.arpa." nodefault
699	# local-zone: "255.255.255.255.in-addr.arpa." nodefault
700	# local-zone: "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa." nodefault
701	# local-zone: "d.f.ip6.arpa." nodefault
702	# local-zone: "8.e.f.ip6.arpa." nodefault
703	# local-zone: "9.e.f.ip6.arpa." nodefault
704	# local-zone: "a.e.f.ip6.arpa." nodefault
705	# local-zone: "b.e.f.ip6.arpa." nodefault
706	# local-zone: "8.b.d.0.1.0.0.2.ip6.arpa." nodefault
707	# And for 64.100.in-addr.arpa. to 127.100.in-addr.arpa.
708
709	# Add example.com into ipset
710	# local-zone: "example.com" ipset
711
712	# If Unbound is running service for the local host then it is useful
713	# to perform lan-wide lookups to the upstream, and unblock the
714	# long list of local-zones above.  If this Unbound is a dns server
715	# for a network of computers, disabled is better and stops information
716	# leakage of local lan information.
717	# unblock-lan-zones: no
718
719	# The insecure-lan-zones option disables validation for
720	# these zones, as if they were all listed as domain-insecure.
721	# insecure-lan-zones: no
722
723	# a number of locally served zones can be configured.
724	# 	local-zone: <zone> <type>
725	# 	local-data: "<resource record string>"
726	# o deny serves local data (if any), else, drops queries.
727	# o refuse serves local data (if any), else, replies with error.
728	# o static serves local data, else, nxdomain or nodata answer.
729	# o transparent gives local data, but resolves normally for other names
730	# o redirect serves the zone data for any subdomain in the zone.
731	# o nodefault can be used to normally resolve AS112 zones.
732	# o typetransparent resolves normally for other types and other names
733	# o inform acts like transparent, but logs client IP address
734	# o inform_deny drops queries and logs client IP address
735	# o inform_redirect redirects queries and logs client IP address
736	# o always_transparent, always_refuse, always_nxdomain, always_nodata,
737	#   always_deny resolve in that way but ignore local data for
738	#   that name
739	# o always_null returns 0.0.0.0 or ::0 for any name in the zone.
740	# o noview breaks out of that view towards global local-zones.
741	#
742	# defaults are localhost address, reverse for 127.0.0.1 and ::1
743	# and nxdomain for AS112 zones. If you configure one of these zones
744	# the default content is omitted, or you can omit it with 'nodefault'.
745	#
746	# If you configure local-data without specifying local-zone, by
747	# default a transparent local-zone is created for the data.
748	#
749	# You can add locally served data with
750	# local-zone: "local." static
751	# local-data: "mycomputer.local. IN A 192.0.2.51"
752	# local-data: 'mytext.local TXT "content of text record"'
753	#
754	# You can override certain queries with
755	# local-data: "adserver.example.com A 127.0.0.1"
756	#
757	# You can redirect a domain to a fixed address with
758	# (this makes example.com, www.example.com, etc, all go to 192.0.2.3)
759	# local-zone: "example.com" redirect
760	# local-data: "example.com A 192.0.2.3"
761	#
762	# Shorthand to make PTR records, "IPv4 name" or "IPv6 name".
763	# You can also add PTR records using local-data directly, but then
764	# you need to do the reverse notation yourself.
765	# local-data-ptr: "192.0.2.3 www.example.com"
766
767	# tag a localzone with a list of tag names (in "" with spaces between)
768	# local-zone-tag: "example.com" "tag2 tag3"
769
770	# add a netblock specific override to a localzone, with zone type
771	# local-zone-override: "example.com" 192.0.2.0/24 refuse
772
773	# service clients over TLS (on the TCP sockets) with plain DNS inside
774	# the TLS stream, and over HTTPS using HTTP/2 as specified in RFC8484.
775	# Give the certificate to use and private key.
776	# default is "" (disabled).  requires restart to take effect.
777	# tls-service-key: "path/to/privatekeyfile.key"
778	# tls-service-pem: "path/to/publiccertfile.pem"
779	# tls-port: 853
780	# https-port: 443
781
782	# cipher setting for TLSv1.2
783	# tls-ciphers: "DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256"
784	# cipher setting for TLSv1.3
785	# tls-ciphersuites: "TLS_AES_128_GCM_SHA256:TLS_AES_128_CCM_8_SHA256:TLS_AES_128_CCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256"
786
787	# Pad responses to padded queries received over TLS
788	# pad-responses: yes
789
790	# Padded responses will be padded to the closest multiple of this size.
791	# pad-responses-block-size: 468
792
793	# Use the SNI extension for TLS connections.  Default is yes.
794	# Changing the value requires a reload.
795	# tls-use-sni: yes
796
797	# Add the secret file for TLS Session Ticket.
798	# Secret file must be 80 bytes of random data.
799	# First key use to encrypt and decrypt TLS session tickets.
800	# Other keys use to decrypt only.
801	# requires restart to take effect.
802	# tls-session-ticket-keys: "path/to/secret_file1"
803	# tls-session-ticket-keys: "path/to/secret_file2"
804
805	# request upstream over TLS (with plain DNS inside the TLS stream).
806	# Default is no.  Can be turned on and off with unbound-control.
807	# tls-upstream: no
808
809	# Certificates used to authenticate connections made upstream.
810	# tls-cert-bundle: ""
811
812	# Add system certs to the cert bundle, from the Windows Cert Store
813	# tls-win-cert: no
814
815	# Pad queries over TLS upstreams
816	# pad-queries: yes
817
818	# Padded queries will be padded to the closest multiple of this size.
819	# pad-queries-block-size: 128
820
821	# Also serve tls on these port numbers (eg. 443, ...), by listing
822	# tls-additional-port: portno for each of the port numbers.
823
824	# HTTP endpoint to provide DNS-over-HTTPS service on.
825	# http-endpoint: "/dns-query"
826
827	# HTTP/2 SETTINGS_MAX_CONCURRENT_STREAMS value to use.
828	# http-max-streams: 100
829
830	# Maximum number of bytes used for all HTTP/2 query buffers.
831	# http-query-buffer-size: 4m
832
833	# Maximum number of bytes used for all HTTP/2 response buffers.
834	# http-response-buffer-size: 4m
835
836	# Set TCP_NODELAY socket option on sockets used for DNS-over-HTTPS
837	# service.
838	# http-nodelay: yes
839
840	# Disable TLS for DNS-over-HTTP downstream service.
841	# http-notls-downstream: no
842
843	# DNS64 prefix. Must be specified when DNS64 is use.
844	# Enable dns64 in module-config.  Used to synthesize IPv6 from IPv4.
845	# dns64-prefix: 64:ff9b::0/96
846
847	# DNS64 ignore AAAA records for these domains and use A instead.
848	# dns64-ignore-aaaa: "example.com"
849
850	# ratelimit for uncached, new queries, this limits recursion effort.
851	# ratelimiting is experimental, and may help against randomqueryflood.
852	# if 0(default) it is disabled, otherwise state qps allowed per zone.
853	# ratelimit: 0
854
855	# ratelimits are tracked in a cache, size in bytes of cache (or k,m).
856	# ratelimit-size: 4m
857	# ratelimit cache slabs, reduces lock contention if equal to cpucount.
858	# ratelimit-slabs: 4
859
860	# 0 blocks when ratelimited, otherwise let 1/xth traffic through
861	# ratelimit-factor: 10
862
863	# Aggressive rate limit when the limit is reached and until demand has
864	# decreased in a 2 second rate window.
865	# ratelimit-backoff: no
866
867	# override the ratelimit for a specific domain name.
868	# give this setting multiple times to have multiple overrides.
869	# ratelimit-for-domain: example.com 1000
870	# override the ratelimits for all domains below a domain name
871	# can give this multiple times, the name closest to the zone is used.
872	# ratelimit-below-domain: com 1000
873
874	# global query ratelimit for all ip addresses.
875	# feature is experimental.
876	# if 0(default) it is disabled, otherwise states qps allowed per ip address
877	# ip-ratelimit: 0
878
879	# ip ratelimits are tracked in a cache, size in bytes of cache (or k,m).
880	# ip-ratelimit-size: 4m
881	# ip ratelimit cache slabs, reduces lock contention if equal to cpucount.
882	# ip-ratelimit-slabs: 4
883
884	# 0 blocks when ip is ratelimited, otherwise let 1/xth traffic through
885	# ip-ratelimit-factor: 10
886
887	# Aggressive rate limit when the limit is reached and until demand has
888	# decreased in a 2 second rate window.
889	# ip-ratelimit-backoff: no
890
891	# Limit the number of connections simultaneous from a netblock
892	# tcp-connection-limit: 192.0.2.0/24 12
893
894	# select from the fastest servers this many times out of 1000. 0 means
895	# the fast server select is disabled. prefetches are not sped up.
896	# fast-server-permil: 0
897	# the number of servers that will be used in the fast server selection.
898	# fast-server-num: 3
899
900	# Specific options for ipsecmod. Unbound needs to be configured with
901	# --enable-ipsecmod for these to take effect.
902	#
903	# Enable or disable ipsecmod (it still needs to be defined in
904	# module-config above). Can be used when ipsecmod needs to be
905	# enabled/disabled via remote-control(below).
906	# ipsecmod-enabled: yes
907	#
908	# Path to executable external hook. It must be defined when ipsecmod is
909	# listed in module-config (above).
910	# ipsecmod-hook: "./my_executable"
911	#
912	# When enabled Unbound will reply with SERVFAIL if the return value of
913	# the ipsecmod-hook is not 0.
914	# ipsecmod-strict: no
915	#
916	# Maximum time to live (TTL) for cached A/AAAA records with IPSECKEY.
917	# ipsecmod-max-ttl: 3600
918	#
919	# Reply with A/AAAA even if the relevant IPSECKEY is bogus. Mainly used for
920	# testing.
921	# ipsecmod-ignore-bogus: no
922	#
923	# Domains for which ipsecmod will be triggered. If not defined (default)
924	# all domains are treated as being allowed.
925	# ipsecmod-allow: "example.com"
926	# ipsecmod-allow: "nlnetlabs.nl"
927
928	# Timeout for REUSE entries in milliseconds.
929	# tcp-reuse-timeout: 60000
930	# Max number of queries on a reuse connection.
931	# max-reuse-tcp-queries: 200
932	# Timeout in milliseconds for TCP queries to auth servers.
933	# tcp-auth-query-timeout: 3000
934
935
936# Python config section. To enable:
937# o use --with-pythonmodule to configure before compiling.
938# o list python in the module-config string (above) to enable.
939#   It can be at the start, it gets validated results, or just before
940#   the iterator and process before DNSSEC validation.
941# o and give a python-script to run.
942python:
943	# Script file to load
944	# python-script: "@UNBOUND_SHARE_DIR@/ubmodule-tst.py"
945
946# Dynamic library config section. To enable:
947# o use --with-dynlibmodule to configure before compiling.
948# o list dynlib in the module-config string (above) to enable.
949#   It can be placed anywhere, the dynlib module is only a very thin wrapper
950#   to load modules dynamically.
951# o and give a dynlib-file to run. If more than one dynlib entry is listed in
952#   the module-config then you need one dynlib-file per instance.
953dynlib:
954	# Script file to load
955	# dynlib-file: "@UNBOUND_SHARE_DIR@/dynlib.so"
956
957# Remote control config section.
958remote-control:
959	# Enable remote control with unbound-control(8) here.
960	# set up the keys and certificates with unbound-control-setup.
961	# control-enable: no
962
963	# what interfaces are listened to for remote control.
964	# give 0.0.0.0 and ::0 to listen to all interfaces.
965	# set to an absolute path to use a unix local name pipe, certificates
966	# are not used for that, so key and cert files need not be present.
967	# control-interface: 127.0.0.1
968	# control-interface: ::1
969
970	# port number for remote control operations.
971	# control-port: 8953
972
973	# for localhost, you can disable use of TLS by setting this to "no"
974	# For local sockets this option is ignored, and TLS is not used.
975	# control-use-cert: "yes"
976
977	# Unbound server key file.
978	# server-key-file: "@UNBOUND_RUN_DIR@/unbound_server.key"
979
980	# Unbound server certificate file.
981	# server-cert-file: "@UNBOUND_RUN_DIR@/unbound_server.pem"
982
983	# unbound-control key file.
984	# control-key-file: "@UNBOUND_RUN_DIR@/unbound_control.key"
985
986	# unbound-control certificate file.
987	# control-cert-file: "@UNBOUND_RUN_DIR@/unbound_control.pem"
988
989# Stub zones.
990# Create entries like below, to make all queries for 'example.com' and
991# 'example.org' go to the given list of nameservers. list zero or more
992# nameservers by hostname or by ipaddress. If you set stub-prime to yes,
993# the list is treated as priming hints (default is no).
994# With stub-first yes, it attempts without the stub if it fails.
995# Consider adding domain-insecure: name and local-zone: name nodefault
996# to the server: section if the stub is a locally served zone.
997# stub-zone:
998#	name: "example.com"
999#	stub-addr: 192.0.2.68
1000#	stub-prime: no
1001#	stub-first: no
1002#	stub-tcp-upstream: no
1003#	stub-tls-upstream: no
1004#	stub-no-cache: no
1005# stub-zone:
1006#	name: "example.org"
1007#	stub-host: ns.example.com.
1008
1009# Forward zones
1010# Create entries like below, to make all queries for 'example.com' and
1011# 'example.org' go to the given list of servers. These servers have to handle
1012# recursion to other nameservers. List zero or more nameservers by hostname
1013# or by ipaddress. Use an entry with name "." to forward all queries.
1014# If you enable forward-first, it attempts without the forward if it fails.
1015# forward-zone:
1016# 	name: "example.com"
1017# 	forward-addr: 192.0.2.68
1018# 	forward-addr: 192.0.2.73@5355  # forward to port 5355.
1019# 	forward-first: no
1020# 	forward-tcp-upstream: no
1021# 	forward-tls-upstream: no
1022#	forward-no-cache: no
1023# forward-zone:
1024# 	name: "example.org"
1025# 	forward-host: fwd.example.com
1026
1027# Authority zones
1028# The data for these zones is kept locally, from a file or downloaded.
1029# The data can be served to downstream clients, or used instead of the
1030# upstream (which saves a lookup to the upstream).  The first example
1031# has a copy of the root for local usage.  The second serves example.org
1032# authoritatively.  zonefile: reads from file (and writes to it if you also
1033# download it), primary: fetches with AXFR and IXFR, or url to zonefile.
1034# With allow-notify: you can give additional (apart from primaries) sources of
1035# notifies.
1036# auth-zone:
1037#	name: "."
1038#	primary: 199.9.14.201         # b.root-servers.net
1039#	primary: 192.33.4.12          # c.root-servers.net
1040#	primary: 199.7.91.13          # d.root-servers.net
1041#	primary: 192.5.5.241          # f.root-servers.net
1042#	primary: 192.112.36.4         # g.root-servers.net
1043#	primary: 193.0.14.129         # k.root-servers.net
1044#	primary: 192.0.47.132         # xfr.cjr.dns.icann.org
1045#	primary: 192.0.32.132         # xfr.lax.dns.icann.org
1046#	primary: 2001:500:200::b      # b.root-servers.net
1047#	primary: 2001:500:2::c        # c.root-servers.net
1048#	primary: 2001:500:2d::d       # d.root-servers.net
1049#	primary: 2001:500:2f::f       # f.root-servers.net
1050#	primary: 2001:500:12::d0d     # g.root-servers.net
1051#	primary: 2001:7fd::1          # k.root-servers.net
1052#	primary: 2620:0:2830:202::132 # xfr.cjr.dns.icann.org
1053#	primary: 2620:0:2d0:202::132  # xfr.lax.dns.icann.org
1054#	fallback-enabled: yes
1055#	for-downstream: no
1056#	for-upstream: yes
1057# auth-zone:
1058#	name: "example.org"
1059#	for-downstream: yes
1060#	for-upstream: yes
1061#	zonemd-check: no
1062#	zonemd-reject-absence: no
1063#	zonefile: "example.org.zone"
1064
1065# Views
1066# Create named views. Name must be unique. Map views to requests using
1067# the access-control-view option. Views can contain zero or more local-zone
1068# and local-data options. Options from matching views will override global
1069# options. Global options will be used if no matching view is found.
1070# With view-first yes, it will try to answer using the global local-zone and
1071# local-data elements if there is no view specific match.
1072# view:
1073#	name: "viewname"
1074#	local-zone: "example.com" redirect
1075#	local-data: "example.com A 192.0.2.3"
1076#	local-data-ptr: "192.0.2.3 www.example.com"
1077#	view-first: no
1078# view:
1079#	name: "anotherview"
1080#	local-zone: "example.com" refuse
1081
1082# DNSCrypt
1083# To enable, use --enable-dnscrypt to configure before compiling.
1084# Caveats:
1085# 1. the keys/certs cannot be produced by Unbound. You can use dnscrypt-wrapper
1086#   for this: https://github.com/cofyc/dnscrypt-wrapper/blob/master/README.md#usage
1087# 2. dnscrypt channel attaches to an interface. you MUST set interfaces to
1088#   listen on `dnscrypt-port` with the follo0wing snippet:
1089# server:
1090#     interface: 0.0.0.0@443
1091#     interface: ::0@443
1092#
1093# Finally, `dnscrypt` config has its own section.
1094# dnscrypt:
1095#     dnscrypt-enable: yes
1096#     dnscrypt-port: 443
1097#     dnscrypt-provider: 2.dnscrypt-cert.example.com.
1098#     dnscrypt-secret-key: /path/unbound-conf/keys1/1.key
1099#     dnscrypt-secret-key: /path/unbound-conf/keys2/1.key
1100#     dnscrypt-provider-cert: /path/unbound-conf/keys1/1.cert
1101#     dnscrypt-provider-cert: /path/unbound-conf/keys2/1.cert
1102
1103# CacheDB
1104# External backend DB as auxiliary cache.
1105# To enable, use --enable-cachedb to configure before compiling.
1106# Specify the backend name
1107# (default is "testframe", which has no use other than for debugging and
1108# testing) and backend-specific options.  The 'cachedb' module must be
1109# included in module-config, just before the iterator module.
1110# cachedb:
1111#     backend: "testframe"
1112#     # secret seed string to calculate hashed keys
1113#     secret-seed: "default"
1114#
1115#     # For "redis" backend:
1116#     # (to enable, use --with-libhiredis to configure before compiling)
1117#     # redis server's IP address or host name
1118#     redis-server-host: 127.0.0.1
1119#     # redis server's TCP port
1120#     redis-server-port: 6379
1121#     # timeout (in ms) for communication with the redis server
1122#     redis-timeout: 100
1123#     # set timeout on redis records based on DNS response TTL
1124#     redis-expire-records: no
1125
1126# IPSet
1127# Add specify domain into set via ipset.
1128# To enable:
1129# o use --enable-ipset to configure before compiling;
1130# o Unbound then needs to run as root user.
1131# ipset:
1132#     # set name for ip v4 addresses
1133#     name-v4: "list-v4"
1134#     # set name for ip v6 addresses
1135#     name-v6: "list-v6"
1136#
1137
1138# Dnstap logging support, if compiled in by using --enable-dnstap to configure.
1139# To enable, set the dnstap-enable to yes and also some of
1140# dnstap-log-..-messages to yes.  And select an upstream log destination, by
1141# socket path, TCP or TLS destination.
1142# dnstap:
1143# 	dnstap-enable: no
1144# 	# if set to yes frame streams will be used in bidirectional mode
1145# 	dnstap-bidirectional: yes
1146# 	dnstap-socket-path: "@DNSTAP_SOCKET_PATH@"
1147# 	# if "" use the unix socket in dnstap-socket-path, otherwise,
1148# 	# set it to "IPaddress[@port]" of the destination.
1149# 	dnstap-ip: ""
1150# 	# if set to yes if you want to use TLS to dnstap-ip, no for TCP.
1151# 	dnstap-tls: yes
1152# 	# name for authenticating the upstream server. or "" disabled.
1153# 	dnstap-tls-server-name: ""
1154# 	# if "", it uses the cert bundle from the main Unbound config.
1155# 	dnstap-tls-cert-bundle: ""
1156# 	# key file for client authentication, or "" disabled.
1157# 	dnstap-tls-client-key-file: ""
1158# 	# cert file for client authentication, or "" disabled.
1159# 	dnstap-tls-client-cert-file: ""
1160# 	dnstap-send-identity: no
1161# 	dnstap-send-version: no
1162# 	# if "" it uses the hostname.
1163# 	dnstap-identity: ""
1164# 	# if "" it uses the package version.
1165# 	dnstap-version: ""
1166# 	dnstap-log-resolver-query-messages: no
1167# 	dnstap-log-resolver-response-messages: no
1168# 	dnstap-log-client-query-messages: no
1169# 	dnstap-log-client-response-messages: no
1170# 	dnstap-log-forwarder-query-messages: no
1171# 	dnstap-log-forwarder-response-messages: no
1172
1173# Response Policy Zones
1174# RPZ policies. Applied in order of configuration. QNAME, Response IP
1175# Address, nsdname, nsip and clientip triggers are supported. Supported
1176# actions are: NXDOMAIN, NODATA, PASSTHRU, DROP, Local Data, tcp-only
1177# and drop.  Policies can be loaded from a file, or using zone
1178# transfer, or using HTTP. The respip module needs to be added
1179# to the module-config, e.g.: module-config: "respip validator iterator".
1180# rpz:
1181#     name: "rpz.example.com"
1182#     zonefile: "rpz.example.com"
1183#     primary: 192.0.2.0
1184#     allow-notify: 192.0.2.0/32
1185#     url: http://www.example.com/rpz.example.org.zone
1186#     rpz-action-override: cname
1187#     rpz-cname-override: www.example.org
1188#     rpz-log: yes
1189#     rpz-log-name: "example policy"
1190#     rpz-signal-nxdomain-ra: no
1191#     for-downstream: no
1192#     tags: "example"
1193