2 # Example configuration file.
4 # See unbound.conf(5) man page, version 1.18.0.
8 # Use this anywhere in the file to include other text into this file.
9 #include: "otherfile.conf"
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"
15 # The server clause sets the main parameters.
17 # whitespace is not necessary, but looks cleaner.
19 # verbosity number, 0 is least verbose. 1 is default.
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
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.
31 # shm for stats uses this key, and key+1 for the shared mem segment.
34 # enable cumulative statistics, without clearing them after printing.
35 # statistics-cumulative: no
37 # enable extended statistics (query types, answer codes, status)
38 # printed from unbound-control. Default off, because of speed.
39 # extended-statistics: no
41 # Inhibits selected extended statistics (qtype, qclass, qopcode, rcode,
42 # rpz-actions) from printing if their value is 0.
44 # statistics-inhibit-zero: yes
46 # number of threads to create. 1 disables threading.
49 # specify the interfaces to answer queries from by ip-address.
50 # The default is to listen to localhost (127.0.0.1 and ::1).
51 # specify 0.0.0.0 and ::0 to bind to all available interfaces.
52 # specify every interface[@port] on a new 'interface:' labelled line.
53 # The listen interfaces are not changed on reload, only on restart.
54 # interface: 192.0.2.153
55 # interface: 192.0.2.154
56 # interface: 192.0.2.154@5003
57 # interface: 2001:DB8::5
58 # interface: eth0@5003
60 # enable this feature to copy the source address of queries to reply.
61 # Socket options are not supported on all platforms. experimental.
62 # interface-automatic: no
64 # instead of the default port, open additional ports separated by
65 # spaces when interface-automatic is enabled, by listing them here.
66 # interface-automatic-ports: ""
68 # port to answer queries from
71 # specify the interfaces to send outgoing queries to authoritative
72 # server from by ip-address. If none, the default (all) interface
73 # is used. Specify every interface on a 'outgoing-interface:' line.
74 # outgoing-interface: 192.0.2.153
75 # outgoing-interface: 2001:DB8::5
76 # outgoing-interface: 2001:DB8::6
78 # Specify a netblock to use remainder 64 bits as random bits for
79 # upstream queries. Uses freebind option (Linux).
80 # outgoing-interface: 2001:DB8::/64
81 # Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo
82 # And: ip -6 route add local 2001:db8::/64 dev lo
83 # And set prefer-ip6: yes to use the ip6 randomness from a netblock.
84 # Set this to yes to prefer ipv6 upstream servers over ipv4.
87 # Prefer ipv4 upstream servers, even if ipv6 is available.
90 # number of ports to allocate per thread, determines the size of the
91 # port range that can be open simultaneously. About double the
92 # num-queries-per-thread, or, use as many as the OS will allow you.
93 # outgoing-range: 4096
95 # permit Unbound to use this port number or port range for
96 # making outgoing queries, using an outgoing interface.
97 # outgoing-port-permit: 32768
99 # deny Unbound the use this of port number or port range for
100 # making outgoing queries, using an outgoing interface.
101 # Use this to make sure Unbound does not grab a UDP port that some
102 # other server on this computer needs. The default is to avoid
103 # IANA-assigned port numbers.
104 # If multiple outgoing-port-permit and outgoing-port-avoid options
105 # are present, they are processed in order.
106 # outgoing-port-avoid: "3200-3208"
108 # number of outgoing simultaneous tcp buffers to hold per thread.
109 # outgoing-num-tcp: 10
111 # number of incoming simultaneous tcp buffers to hold per thread.
112 # incoming-num-tcp: 10
114 # buffer size for UDP port 53 incoming (SO_RCVBUF socket option).
115 # 0 is system default. Use 4m to catch query spikes for busy servers.
118 # buffer size for UDP port 53 outgoing (SO_SNDBUF socket option).
119 # 0 is system default. Use 4m to handle spikes on very busy servers.
122 # use SO_REUSEPORT to distribute queries over threads.
123 # at extreme load it could be better to turn it off to distribute even.
126 # use IP_TRANSPARENT so the interface: addresses can be non-local
127 # and you can config non-existing IPs that are going to work later on
128 # (uses IP_BINDANY on FreeBSD).
131 # use IP_FREEBIND so the interface: addresses can be non-local
132 # and you can bind to nonexisting IPs and interfaces that are down.
133 # Linux only. On Linux you also have ip-transparent that is similar.
136 # the value of the Differentiated Services Codepoint (DSCP)
137 # in the differentiated services field (DS) of the outgoing
141 # EDNS reassembly buffer to advertise to UDP peers (the actual buffer
142 # is set with msg-buffer-size).
143 # edns-buffer-size: 1232
145 # Maximum UDP response size (not applied to TCP response).
146 # Suggested values are 512 to 4096. Default is 1232. 65536 disables it.
149 # max memory to use for stream(tcp and tls) waiting result buffers.
150 # stream-wait-size: 4m
152 # buffer size for handling DNS data. No messages larger than this
153 # size can be sent or received, by UDP or TCP. In bytes.
154 # msg-buffer-size: 65552
156 # the amount of memory to use for the message cache.
157 # plain value in bytes or you can append k, m or G. default is "4Mb".
160 # the number of slabs to use for the message cache.
161 # the number of slabs must be a power of 2.
162 # more slabs reduce lock contention, but fragment memory usage.
165 # the number of queries that a thread gets to service.
166 # num-queries-per-thread: 1024
168 # if very busy, 50% queries run to completion, 50% get timeout in msec
169 # jostle-timeout: 200
171 # msec to wait before close of port on timeout UDP. 0 disables.
174 # perform connect for UDP sockets to mitigate ICMP side channel.
177 # The number of retries, per upstream nameserver in a delegation, when
178 # a throwaway response (also timeouts) is received.
179 # outbound-msg-retry: 5
181 # Hard limit on the number of outgoing queries Unbound will make while
182 # resolving a name, making sure large NS sets do not loop.
183 # It resets on query restarts (e.g., CNAME) and referrals.
186 # Hard limit on the number of times Unbound is allowed to restart a
187 # query upon encountering a CNAME record.
188 # max-query-restarts: 11
190 # msec for waiting for an unknown server to reply. Increase if you
191 # are behind a slow satellite link, to eg. 1128.
192 # unknown-server-time-limit: 376
194 # the amount of memory to use for the RRset cache.
195 # plain value in bytes or you can append k, m or G. default is "4Mb".
196 # rrset-cache-size: 4m
198 # the number of slabs to use for the RRset cache.
199 # the number of slabs must be a power of 2.
200 # more slabs reduce lock contention, but fragment memory usage.
201 # rrset-cache-slabs: 4
203 # the time to live (TTL) value lower bound, in seconds. Default 0.
204 # If more than an hour could easily give trouble due to stale data.
207 # the time to live (TTL) value cap for RRsets and messages in the
208 # cache. Items are not cached for longer. In seconds.
209 # cache-max-ttl: 86400
211 # the time to live (TTL) value cap for negative responses in the cache
212 # cache-max-negative-ttl: 3600
214 # the time to live (TTL) value for cached roundtrip times, lameness and
215 # EDNS version information for hosts. In seconds.
216 # infra-host-ttl: 900
218 # minimum wait time for responses, increase if uplink is long. In msec.
219 # infra-cache-min-rtt: 50
221 # maximum wait time for responses. In msec.
222 # infra-cache-max-rtt: 120000
224 # enable to make server probe down hosts more frequently.
225 # infra-keep-probing: no
227 # the number of slabs to use for the Infrastructure cache.
228 # the number of slabs must be a power of 2.
229 # more slabs reduce lock contention, but fragment memory usage.
230 # infra-cache-slabs: 4
232 # the maximum number of hosts that are cached (roundtrip, EDNS, lame).
233 # infra-cache-numhosts: 10000
235 # define a number of tags here, use with local-zone, access-control,
237 # repeat the define-tag statement to add additional tags.
238 # define-tag: "tag1 tag2 tag3"
240 # Enable IPv4, "yes" or "no".
243 # Enable IPv6, "yes" or "no".
246 # If running unbound on an IPv6-only host, domains that only have
247 # IPv4 servers would become unresolveable. If NAT64 is available in
248 # the network, unbound can use NAT64 to reach these servers with
249 # the following option. This is NOT needed for enabling DNS64 on a
250 # system that has IPv4 connectivity.
251 # Consider also enabling prefer-ip6 to prefer native IPv6 connections
255 # NAT64 prefix. Defaults to using dns64-prefix value.
256 # nat64-prefix: 64:ff9b::0/96
258 # Enable UDP, "yes" or "no".
261 # Enable TCP, "yes" or "no".
264 # upstream connections use TCP only (and no UDP), "yes" or "no"
265 # useful for tunneling scenarios, default no.
268 # upstream connections also use UDP (even if do-udp is no).
269 # useful if if you want UDP upstream, but don't provide UDP downstream.
270 # udp-upstream-without-downstream: no
272 # Maximum segment size (MSS) of TCP socket on which the server
273 # responds to queries. Default is 0, system default MSS.
276 # Maximum segment size (MSS) of TCP socket for outgoing queries.
277 # Default is 0, system default MSS.
278 # outgoing-tcp-mss: 0
280 # Idle TCP timeout, connection closed in milliseconds
281 # tcp-idle-timeout: 30000
283 # Enable EDNS TCP keepalive option.
284 # edns-tcp-keepalive: no
286 # Timeout for EDNS TCP keepalive, in msec.
287 # edns-tcp-keepalive-timeout: 120000
289 # UDP queries that have waited in the socket buffer for a long time
290 # can be dropped. Default is 0, disabled. In seconds, such as 3.
291 # sock-queue-timeout: 0
293 # Use systemd socket activation for UDP, TCP, and control sockets.
296 # Detach from the terminal, run in background, "yes" or "no".
297 # Set the value to "no" when Unbound runs as systemd service.
300 # control which clients are allowed to make (recursive) queries
301 # to this server. Specify classless netblocks with /size and action.
302 # By default everything is refused, except for localhost.
303 # Choose deny (drop message), refuse (polite error reply),
304 # allow (recursive ok), allow_setrd (recursive ok, rd bit is forced on),
305 # allow_snoop (recursive and nonrecursive ok)
306 # deny_non_local (drop queries unless can be answered from local-data)
307 # refuse_non_local (like deny_non_local but polite error reply).
308 # access-control: 127.0.0.0/8 allow
309 # access-control: ::1 allow
310 # access-control: ::ffff:127.0.0.1 allow
312 # tag access-control with list of tags (in "" with spaces between)
313 # Clients using this access control element use localzones that
314 # are tagged with one of these tags.
315 # access-control-tag: 192.0.2.0/24 "tag2 tag3"
317 # set action for particular tag for given access control element.
318 # if you have multiple tag values, the tag used to lookup the action
319 # is the first tag match between access-control-tag and local-zone-tag
320 # where "first" comes from the order of the define-tag values.
321 # access-control-tag-action: 192.0.2.0/24 tag3 refuse
323 # set redirect data for particular tag for access control element
324 # access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1"
326 # Set view for access control element
327 # access-control-view: 192.0.2.0/24 viewname
329 # Similar to 'access-control:' but for interfaces.
330 # Control which listening interfaces are allowed to accept (recursive)
331 # queries for this server.
332 # The specified interfaces should be the same as the ones specified in
333 # 'interface:' followed by the action.
334 # The actions are the same as 'access-control:' above.
335 # By default all the interfaces configured are refused.
336 # Note: any 'access-control*:' setting overrides all 'interface-*:'
337 # settings for targeted clients.
338 # interface-action: 192.0.2.153 allow
339 # interface-action: 192.0.2.154 allow
340 # interface-action: 192.0.2.154@5003 allow
341 # interface-action: 2001:DB8::5 allow
342 # interface-action: eth0@5003 allow
344 # Similar to 'access-control-tag:' but for interfaces.
345 # Tag interfaces with a list of tags (in "" with spaces between).
346 # Interfaces using these tags use localzones that are tagged with one
348 # The specified interfaces should be the same as the ones specified in
349 # 'interface:' followed by the list of tags.
350 # Note: any 'access-control*:' setting overrides all 'interface-*:'
351 # settings for targeted clients.
352 # interface-tag: eth0@5003 "tag2 tag3"
354 # Similar to 'access-control-tag-action:' but for interfaces.
355 # Set action for particular tag for a given interface element.
356 # If you have multiple tag values, the tag used to lookup the action
357 # is the first tag match between interface-tag and local-zone-tag
358 # where "first" comes from the order of the define-tag values.
359 # The specified interfaces should be the same as the ones specified in
360 # 'interface:' followed by the tag and action.
361 # Note: any 'access-control*:' setting overrides all 'interface-*:'
362 # settings for targeted clients.
363 # interface-tag-action: eth0@5003 tag3 refuse
365 # Similar to 'access-control-tag-data:' but for interfaces.
366 # Set redirect data for a particular tag for an interface element.
367 # The specified interfaces should be the same as the ones specified in
368 # 'interface:' followed by the tag and the redirect data.
369 # Note: any 'access-control*:' setting overrides all 'interface-*:'
370 # settings for targeted clients.
371 # interface-tag-data: eth0@5003 tag2 "A 127.0.0.1"
373 # Similar to 'access-control-view:' but for interfaces.
374 # Set view for an interface element.
375 # The specified interfaces should be the same as the ones specified in
376 # 'interface:' followed by the view name.
377 # Note: any 'access-control*:' setting overrides all 'interface-*:'
378 # settings for targeted clients.
379 # interface-view: eth0@5003 viewname
381 # if given, a chroot(2) is done to the given directory.
382 # i.e. you can chroot to the working directory, for example,
383 # for extra security, but make sure all files are in that directory.
385 # If chroot is enabled, you should pass the configfile (from the
386 # commandline) as a full path from the original root. After the
387 # chroot has been performed the now defunct portion of the config
388 # file path is removed to be able to reread the config after a reload.
390 # All other file paths (working dir, logfile, roothints, and
391 # key files) can be specified in several ways:
392 # o as an absolute path relative to the new root.
393 # o as a relative path to the working directory.
394 # o as an absolute path relative to the original root.
395 # In the last case the path is adjusted to remove the unused portion.
397 # The pid file can be absolute and outside of the chroot, it is
398 # written just prior to performing the chroot and dropping permissions.
400 # Additionally, Unbound may need to access /dev/urandom (for entropy).
401 # How to do this is specific to your OS.
403 # If you give "" no chroot is performed. The path must not end in a /.
404 # chroot: "@UNBOUND_CHROOT_DIR@"
406 # if given, user privileges are dropped (after binding port),
407 # and the given username is assumed. Default is user "unbound".
408 # If you give "" no privileges are dropped.
409 # username: "@UNBOUND_USERNAME@"
411 # the working directory. The relative files in this config are
412 # relative to this directory. If you give "" the working directory
414 # If you give a server: directory: dir before include: file statements
415 # then those includes can be relative to the working directory.
416 # directory: "@UNBOUND_RUN_DIR@"
418 # the log file, "" means log to stderr.
419 # Use of this option sets use-syslog to "no".
422 # Log to syslog(3) if yes. The log facility LOG_DAEMON is used to
423 # log to. If yes, it overrides the logfile.
426 # Log identity to report. if empty, defaults to the name of argv[0]
427 # (usually "unbound").
430 # print UTC timestamp in ascii to logfile, default is epoch in seconds.
433 # print one line with time, IP, name, type, class for every query.
436 # print one line per reply, with time, IP, name, type, class, rcode,
437 # timetoresolve, fromcache and responsesize.
440 # log with tag 'query' and 'reply' instead of 'info' for
441 # filtering log-queries and log-replies from the log.
442 # log-tag-queryreply: no
444 # log the local-zone actions, like local-zone type inform is enabled
445 # also for the other local zone types.
446 # log-local-actions: no
448 # print log lines that say why queries return SERVFAIL to clients.
451 # the pid file. Can be an absolute path outside of chroot/work dir.
452 # pidfile: "@UNBOUND_PIDFILE@"
454 # file to read root hints from.
455 # get one from https://www.internic.net/domain/named.cache
458 # enable to not answer id.server and hostname.bind queries.
461 # enable to not answer version.server and version.bind queries.
464 # enable to not answer trustanchor.unbound queries.
465 # hide-trustanchor: no
467 # enable to not set the User-Agent HTTP header.
468 # hide-http-user-agent: no
470 # the identity to report. Leave "" or default to return hostname.
473 # the version to report. Leave "" or default to return package version.
476 # NSID identity (hex string, or "ascii_somestring"). default disabled.
479 # User-Agent HTTP header to use. Leave "" or default to use package name
481 # http-user-agent: ""
483 # the target fetch policy.
484 # series of integers describing the policy per dependency depth.
485 # The number of values in the list determines the maximum dependency
486 # depth the recursor will pursue before giving up. Each integer means:
487 # -1 : fetch all targets opportunistically,
488 # 0: fetch on demand,
489 # positive value: fetch that many targets opportunistically.
490 # Enclose the list of numbers between quotes ("").
491 # target-fetch-policy: "3 2 1 0 0"
493 # Harden against very small EDNS buffer sizes.
494 # harden-short-bufsize: yes
496 # Harden against unseemly large queries.
497 # harden-large-queries: no
499 # Harden against out of zone rrsets, to avoid spoofing attempts.
502 # Harden against receiving dnssec-stripped data. If you turn it
503 # off, failing to validate dnskey data for a trustanchor will
504 # trigger insecure mode for that zone (like without a trustanchor).
505 # Default on, which insists on dnssec data for trust-anchored zones.
506 # harden-dnssec-stripped: yes
508 # Harden against queries that fall under dnssec-signed nxdomain names.
509 # harden-below-nxdomain: yes
511 # Harden the referral path by performing additional queries for
512 # infrastructure data. Validates the replies (if possible).
513 # Default off, because the lookups burden the server. Experimental
514 # implementation of draft-wijngaards-dnsext-resolver-side-mitigation.
515 # harden-referral-path: no
517 # Harden against algorithm downgrade when multiple algorithms are
518 # advertised in the DS record. If no, allows the weakest algorithm
519 # to validate the zone.
520 # harden-algo-downgrade: no
522 # Harden against unknown records in the authority section and the
523 # additional section.
524 # harden-unknown-additional: no
526 # Sent minimum amount of information to upstream servers to enhance
527 # privacy. Only sent minimum required labels of the QNAME and set QTYPE
528 # to A when possible.
529 # qname-minimisation: yes
531 # QNAME minimisation in strict mode. Do not fall-back to sending full
532 # QNAME to potentially broken nameservers. A lot of domains will not be
533 # resolvable when this option in enabled.
534 # This option only has effect when qname-minimisation is enabled.
535 # qname-minimisation-strict: no
537 # Aggressive NSEC uses the DNSSEC NSEC chain to synthesize NXDOMAIN
538 # and other denials, using information from previous NXDOMAINs answers.
539 # aggressive-nsec: yes
541 # Use 0x20-encoded random bits in the query to foil spoof attempts.
542 # This feature is an experimental implementation of draft dns-0x20.
543 # use-caps-for-id: no
545 # Domains (and domains in them) without support for dns-0x20 and
546 # the fallback fails because they keep sending different answers.
547 # caps-exempt: "licdn.com"
548 # caps-exempt: "senderbase.org"
550 # Enforce privacy of these addresses. Strips them away from answers.
551 # It may cause DNSSEC validation to additionally mark it as bogus.
552 # Protects against 'DNS Rebinding' (uses browser as network proxy).
553 # Only 'private-domain' and 'local-data' names are allowed to have
554 # these private addresses. No default.
555 # private-address: 10.0.0.0/8
556 # private-address: 172.16.0.0/12
557 # private-address: 192.168.0.0/16
558 # private-address: 169.254.0.0/16
559 # private-address: fd00::/8
560 # private-address: fe80::/10
561 # private-address: ::ffff:0:0/96
563 # Allow the domain (and its subdomains) to contain private addresses.
564 # local-data statements are allowed to contain private addresses too.
565 # private-domain: "example.com"
567 # If nonzero, unwanted replies are not only reported in statistics,
568 # but also a running total is kept per thread. If it reaches the
569 # threshold, a warning is printed and a defensive action is taken,
570 # the cache is cleared to flush potential poison out of it.
571 # A suggested value is 10000000, the default is 0 (turned off).
572 # unwanted-reply-threshold: 0
574 # Do not query the following addresses. No DNS queries are sent there.
575 # List one address per entry. List classless netblocks with /size,
576 # do-not-query-address: 127.0.0.1/8
577 # do-not-query-address: ::1
579 # if yes, the above default do-not-query-address entries are present.
580 # if no, localhost can be queried (for testing and debugging).
581 # do-not-query-localhost: yes
583 # if yes, perform prefetching of almost expired message cache entries.
586 # if yes, perform key lookups adjacent to normal lookups.
589 # deny queries of type ANY with an empty response.
592 # if yes, Unbound rotates RRSet order in response.
593 # rrset-roundrobin: yes
595 # if yes, Unbound doesn't insert authority/additional sections
596 # into response messages when those sections are not required.
597 # minimal-responses: yes
599 # true to disable DNSSEC lameness check in iterator.
600 # disable-dnssec-lame-check: no
602 # module configuration of the server. A string with identifiers
603 # separated by spaces. Syntax: "[dns64] [validator] iterator"
604 # most modules have to be listed at the beginning of the line,
605 # except cachedb(just before iterator), and python (at the beginning,
606 # or, just before the iterator).
607 # module-config: "validator iterator"
609 # File with trusted keys, kept uptodate using RFC5011 probes,
610 # initial file like trust-anchor-file, then it stores metadata.
611 # Use several entries, one per domain name, to track multiple zones.
613 # If you want to perform DNSSEC validation, run unbound-anchor before
614 # you start Unbound (i.e. in the system boot scripts).
615 # And then enable the auto-trust-anchor-file config item.
616 # Please note usage of unbound-anchor root anchor is at your own risk
617 # and under the terms of our LICENSE (see that file in the source).
618 # auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
620 # trust anchor signaling sends a RFC8145 key tag query after priming.
621 # trust-anchor-signaling: yes
623 # Root key trust anchor sentinel (draft-ietf-dnsop-kskroll-sentinel)
624 # root-key-sentinel: yes
626 # File with trusted keys for validation. Specify more than one file
627 # with several entries, one file per entry.
628 # Zone file format, with DS and DNSKEY entries.
629 # Note this gets out of date, use auto-trust-anchor-file please.
630 # trust-anchor-file: ""
632 # Trusted key for validation. DS or DNSKEY. specify the RR on a
633 # single line, surrounded by "". TTL is ignored. class is IN default.
634 # Note this gets out of date, use auto-trust-anchor-file please.
635 # (These examples are from August 2007 and may not be valid anymore).
636 # trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ=="
637 # trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A"
639 # File with trusted keys for validation. Specify more than one file
640 # with several entries, one file per entry. Like trust-anchor-file
641 # but has a different file format. Format is BIND-9 style format,
642 # the trusted-keys { name flag proto algo "key"; }; clauses are read.
643 # you need external update procedures to track changes in keys.
644 # trusted-keys-file: ""
646 # Ignore chain of trust. Domain is treated as insecure.
647 # domain-insecure: "example.com"
649 # Override the date for validation with a specific fixed date.
650 # Do not set this unless you are debugging signature inception
651 # and expiration. "" or "0" turns the feature off. -1 ignores date.
652 # val-override-date: ""
654 # The time to live for bogus data, rrsets and messages. This avoids
655 # some of the revalidation, until the time interval expires. in secs.
658 # The signature inception and expiration dates are allowed to be off
659 # by 10% of the signature lifetime (expir-incep) from our local clock.
660 # This leeway is capped with a minimum and a maximum. In seconds.
661 # val-sig-skew-min: 3600
662 # val-sig-skew-max: 86400
664 # The maximum number the validator should restart validation with
665 # another authority in case of failed validation.
668 # Should additional section of secure message also be kept clean of
669 # unsecure data. Useful to shield the users of this validator from
670 # potential bogus data in the additional section. All unsigned data
671 # in the additional section is removed from secure messages.
672 # val-clean-additional: yes
674 # Turn permissive mode on to permit bogus messages. Thus, messages
675 # for which security checks failed will be returned to clients,
676 # instead of SERVFAIL. It still performs the security checks, which
677 # result in interesting log files and possibly the AD bit in
678 # replies if the message is found secure. The default is off.
679 # val-permissive-mode: no
681 # Ignore the CD flag in incoming queries and refuse them bogus data.
682 # Enable it if the only clients of Unbound are legacy servers (w2008)
683 # that set CD but cannot validate themselves.
686 # Serve expired responses from cache, with serve-expired-reply-ttl in
687 # the response, and then attempt to fetch the data afresh.
690 # Limit serving of expired responses to configured seconds after
691 # expiration. 0 disables the limit.
692 # serve-expired-ttl: 0
694 # Set the TTL of expired records to the serve-expired-ttl value after a
695 # failed attempt to retrieve the record from upstream. This makes sure
696 # that the expired records will be served as long as there are queries
698 # serve-expired-ttl-reset: no
700 # TTL value to use when replying with expired data.
701 # serve-expired-reply-ttl: 30
703 # Time in milliseconds before replying to the client with expired data.
704 # This essentially enables the serve-stale behavior as specified in
705 # RFC 8767 that first tries to resolve before
706 # immediately responding with expired data. 0 disables this behavior.
707 # A recommended value is 1800.
708 # serve-expired-client-timeout: 0
710 # Return the original TTL as received from the upstream name server rather
711 # than the decrementing TTL as stored in the cache. Enabling this feature
712 # does not impact cache expiry, it only changes the TTL Unbound embeds in
713 # responses to queries. Note that enabling this feature implicitly disables
714 # enforcement of the configured minimum and maximum TTL.
715 # serve-original-ttl: no
717 # Have the validator log failed validations for your diagnosis.
718 # 0: off. 1: A line per failed user query. 2: With reason and bad IP.
721 # It is possible to configure NSEC3 maximum iteration counts per
722 # keysize. Keep this table very short, as linear search is done.
723 # A message with an NSEC3 with larger count is marked insecure.
724 # List in ascending order the keysize and count values.
725 # val-nsec3-keysize-iterations: "1024 150 2048 150 4096 150"
727 # if enabled, ZONEMD verification failures do not block the zone.
728 # zonemd-permissive-mode: no
730 # instruct the auto-trust-anchor-file probing to add anchors after ttl.
731 # add-holddown: 2592000 # 30 days
733 # instruct the auto-trust-anchor-file probing to del anchors after ttl.
734 # del-holddown: 2592000 # 30 days
736 # auto-trust-anchor-file probing removes missing anchors after ttl.
737 # If the value 0 is given, missing anchors are not removed.
738 # keep-missing: 31622400 # 366 days
740 # debug option that allows very small holddown times for key rollover,
741 # otherwise the RFC mandates probe intervals must be at least 1 hour.
742 # permit-small-holddown: no
744 # the amount of memory to use for the key cache.
745 # plain value in bytes or you can append k, m or G. default is "4Mb".
748 # the number of slabs to use for the key cache.
749 # the number of slabs must be a power of 2.
750 # more slabs reduce lock contention, but fragment memory usage.
753 # the amount of memory to use for the negative cache.
754 # plain value in bytes or you can append k, m or G. default is "1Mb".
757 # By default, for a number of zones a small default 'nothing here'
758 # reply is built-in. Query traffic is thus blocked. If you
759 # wish to serve such zone you can unblock them by uncommenting one
760 # of the nodefault statements below.
761 # You may also have to use domain-insecure: zone to make DNSSEC work,
762 # unless you have your own trust anchors for this zone.
763 # local-zone: "localhost." nodefault
764 # local-zone: "127.in-addr.arpa." nodefault
765 # 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
766 # local-zone: "home.arpa." nodefault
767 # local-zone: "onion." nodefault
768 # local-zone: "test." nodefault
769 # local-zone: "invalid." nodefault
770 # local-zone: "10.in-addr.arpa." nodefault
771 # local-zone: "16.172.in-addr.arpa." nodefault
772 # local-zone: "17.172.in-addr.arpa." nodefault
773 # local-zone: "18.172.in-addr.arpa." nodefault
774 # local-zone: "19.172.in-addr.arpa." nodefault
775 # local-zone: "20.172.in-addr.arpa." nodefault
776 # local-zone: "21.172.in-addr.arpa." nodefault
777 # local-zone: "22.172.in-addr.arpa." nodefault
778 # local-zone: "23.172.in-addr.arpa." nodefault
779 # local-zone: "24.172.in-addr.arpa." nodefault
780 # local-zone: "25.172.in-addr.arpa." nodefault
781 # local-zone: "26.172.in-addr.arpa." nodefault
782 # local-zone: "27.172.in-addr.arpa." nodefault
783 # local-zone: "28.172.in-addr.arpa." nodefault
784 # local-zone: "29.172.in-addr.arpa." nodefault
785 # local-zone: "30.172.in-addr.arpa." nodefault
786 # local-zone: "31.172.in-addr.arpa." nodefault
787 # local-zone: "168.192.in-addr.arpa." nodefault
788 # local-zone: "0.in-addr.arpa." nodefault
789 # local-zone: "254.169.in-addr.arpa." nodefault
790 # local-zone: "2.0.192.in-addr.arpa." nodefault
791 # local-zone: "100.51.198.in-addr.arpa." nodefault
792 # local-zone: "113.0.203.in-addr.arpa." nodefault
793 # local-zone: "255.255.255.255.in-addr.arpa." nodefault
794 # 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
795 # local-zone: "d.f.ip6.arpa." nodefault
796 # local-zone: "8.e.f.ip6.arpa." nodefault
797 # local-zone: "9.e.f.ip6.arpa." nodefault
798 # local-zone: "a.e.f.ip6.arpa." nodefault
799 # local-zone: "b.e.f.ip6.arpa." nodefault
800 # local-zone: "8.b.d.0.1.0.0.2.ip6.arpa." nodefault
801 # And for 64.100.in-addr.arpa. to 127.100.in-addr.arpa.
803 # Add example.com into ipset
804 # local-zone: "example.com" ipset
806 # If Unbound is running service for the local host then it is useful
807 # to perform lan-wide lookups to the upstream, and unblock the
808 # long list of local-zones above. If this Unbound is a dns server
809 # for a network of computers, disabled is better and stops information
810 # leakage of local lan information.
811 # unblock-lan-zones: no
813 # The insecure-lan-zones option disables validation for
814 # these zones, as if they were all listed as domain-insecure.
815 # insecure-lan-zones: no
817 # a number of locally served zones can be configured.
818 # local-zone: <zone> <type>
819 # local-data: "<resource record string>"
820 # o deny serves local data (if any), else, drops queries.
821 # o refuse serves local data (if any), else, replies with error.
822 # o static serves local data, else, nxdomain or nodata answer.
823 # o transparent gives local data, but resolves normally for other names
824 # o redirect serves the zone data for any subdomain in the zone.
825 # o nodefault can be used to normally resolve AS112 zones.
826 # o typetransparent resolves normally for other types and other names
827 # o inform acts like transparent, but logs client IP address
828 # o inform_deny drops queries and logs client IP address
829 # o inform_redirect redirects queries and logs client IP address
830 # o always_transparent, always_refuse, always_nxdomain, always_nodata,
831 # always_deny resolve in that way but ignore local data for
833 # o block_a resolves all records normally but returns
834 # NODATA for A queries and ignores local data for that name
835 # o always_null returns 0.0.0.0 or ::0 for any name in the zone.
836 # o noview breaks out of that view towards global local-zones.
838 # defaults are localhost address, reverse for 127.0.0.1 and ::1
839 # and nxdomain for AS112 zones. If you configure one of these zones
840 # the default content is omitted, or you can omit it with 'nodefault'.
842 # If you configure local-data without specifying local-zone, by
843 # default a transparent local-zone is created for the data.
845 # You can add locally served data with
846 # local-zone: "local." static
847 # local-data: "mycomputer.local. IN A 192.0.2.51"
848 # local-data: 'mytext.local TXT "content of text record"'
850 # You can override certain queries with
851 # local-data: "adserver.example.com A 127.0.0.1"
853 # You can redirect a domain to a fixed address with
854 # (this makes example.com, www.example.com, etc, all go to 192.0.2.3)
855 # local-zone: "example.com" redirect
856 # local-data: "example.com A 192.0.2.3"
858 # Shorthand to make PTR records, "IPv4 name" or "IPv6 name".
859 # You can also add PTR records using local-data directly, but then
860 # you need to do the reverse notation yourself.
861 # local-data-ptr: "192.0.2.3 www.example.com"
863 # tag a localzone with a list of tag names (in "" with spaces between)
864 # local-zone-tag: "example.com" "tag2 tag3"
866 # add a netblock specific override to a localzone, with zone type
867 # local-zone-override: "example.com" 192.0.2.0/24 refuse
869 # service clients over TLS (on the TCP sockets) with plain DNS inside
870 # the TLS stream, and over HTTPS using HTTP/2 as specified in RFC8484.
871 # Give the certificate to use and private key.
872 # default is "" (disabled). requires restart to take effect.
873 # tls-service-key: "path/to/privatekeyfile.key"
874 # tls-service-pem: "path/to/publiccertfile.pem"
878 # cipher setting for TLSv1.2
879 # 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"
880 # cipher setting for TLSv1.3
881 # 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"
883 # Pad responses to padded queries received over TLS
886 # Padded responses will be padded to the closest multiple of this size.
887 # pad-responses-block-size: 468
889 # Use the SNI extension for TLS connections. Default is yes.
890 # Changing the value requires a reload.
893 # Add the secret file for TLS Session Ticket.
894 # Secret file must be 80 bytes of random data.
895 # First key use to encrypt and decrypt TLS session tickets.
896 # Other keys use to decrypt only.
897 # requires restart to take effect.
898 # tls-session-ticket-keys: "path/to/secret_file1"
899 # tls-session-ticket-keys: "path/to/secret_file2"
901 # request upstream over TLS (with plain DNS inside the TLS stream).
902 # Default is no. Can be turned on and off with unbound-control.
905 # Certificates used to authenticate connections made upstream.
906 # tls-cert-bundle: ""
908 # Add system certs to the cert bundle, from the Windows Cert Store
910 # and on other systems, the default openssl certificates
911 # tls-system-cert: no
913 # Pad queries over TLS upstreams
916 # Padded queries will be padded to the closest multiple of this size.
917 # pad-queries-block-size: 128
919 # Also serve tls on these port numbers (eg. 443, ...), by listing
920 # tls-additional-port: portno for each of the port numbers.
922 # HTTP endpoint to provide DNS-over-HTTPS service on.
923 # http-endpoint: "/dns-query"
925 # HTTP/2 SETTINGS_MAX_CONCURRENT_STREAMS value to use.
926 # http-max-streams: 100
928 # Maximum number of bytes used for all HTTP/2 query buffers.
929 # http-query-buffer-size: 4m
931 # Maximum number of bytes used for all HTTP/2 response buffers.
932 # http-response-buffer-size: 4m
934 # Set TCP_NODELAY socket option on sockets used for DNS-over-HTTPS
938 # Disable TLS for DNS-over-HTTP downstream service.
939 # http-notls-downstream: no
941 # The interfaces that use these listed port numbers will support and
942 # expect PROXYv2. For UDP and TCP/TLS interfaces.
943 # proxy-protocol-port: portno for each of the port numbers.
945 # DNS64 prefix. Must be specified when DNS64 is use.
946 # Enable dns64 in module-config. Used to synthesize IPv6 from IPv4.
947 # dns64-prefix: 64:ff9b::0/96
949 # DNS64 ignore AAAA records for these domains and use A instead.
950 # dns64-ignore-aaaa: "example.com"
952 # ratelimit for uncached, new queries, this limits recursion effort.
953 # ratelimiting is experimental, and may help against randomqueryflood.
954 # if 0(default) it is disabled, otherwise state qps allowed per zone.
957 # ratelimits are tracked in a cache, size in bytes of cache (or k,m).
959 # ratelimit cache slabs, reduces lock contention if equal to cpucount.
962 # 0 blocks when ratelimited, otherwise let 1/xth traffic through
963 # ratelimit-factor: 10
965 # Aggressive rate limit when the limit is reached and until demand has
966 # decreased in a 2 second rate window.
967 # ratelimit-backoff: no
969 # override the ratelimit for a specific domain name.
970 # give this setting multiple times to have multiple overrides.
971 # ratelimit-for-domain: example.com 1000
972 # override the ratelimits for all domains below a domain name
973 # can give this multiple times, the name closest to the zone is used.
974 # ratelimit-below-domain: com 1000
976 # global query ratelimit for all ip addresses.
977 # feature is experimental.
978 # if 0(default) it is disabled, otherwise states qps allowed per ip address
981 # ip ratelimits are tracked in a cache, size in bytes of cache (or k,m).
982 # ip-ratelimit-size: 4m
983 # ip ratelimit cache slabs, reduces lock contention if equal to cpucount.
984 # ip-ratelimit-slabs: 4
986 # 0 blocks when ip is ratelimited, otherwise let 1/xth traffic through
987 # ip-ratelimit-factor: 10
989 # Aggressive rate limit when the limit is reached and until demand has
990 # decreased in a 2 second rate window.
991 # ip-ratelimit-backoff: no
993 # Limit the number of connections simultaneous from a netblock
994 # tcp-connection-limit: 192.0.2.0/24 12
996 # select from the fastest servers this many times out of 1000. 0 means
997 # the fast server select is disabled. prefetches are not sped up.
998 # fast-server-permil: 0
999 # the number of servers that will be used in the fast server selection.
1000 # fast-server-num: 3
1002 # Enable to attach Extended DNS Error codes (RFC8914) to responses.
1005 # Enable to attach an Extended DNS Error (RFC8914) Code 3 - Stale
1006 # Answer as EDNS0 option to expired responses.
1007 # Note that the ede option above needs to be enabled for this to work.
1008 # ede-serve-expired: no
1010 # Specific options for ipsecmod. Unbound needs to be configured with
1011 # --enable-ipsecmod for these to take effect.
1013 # Enable or disable ipsecmod (it still needs to be defined in
1014 # module-config above). Can be used when ipsecmod needs to be
1015 # enabled/disabled via remote-control(below).
1016 # ipsecmod-enabled: yes
1018 # Path to executable external hook. It must be defined when ipsecmod is
1019 # listed in module-config (above).
1020 # ipsecmod-hook: "./my_executable"
1022 # When enabled Unbound will reply with SERVFAIL if the return value of
1023 # the ipsecmod-hook is not 0.
1024 # ipsecmod-strict: no
1026 # Maximum time to live (TTL) for cached A/AAAA records with IPSECKEY.
1027 # ipsecmod-max-ttl: 3600
1029 # Reply with A/AAAA even if the relevant IPSECKEY is bogus. Mainly used for
1031 # ipsecmod-ignore-bogus: no
1033 # Domains for which ipsecmod will be triggered. If not defined (default)
1034 # all domains are treated as being allowed.
1035 # ipsecmod-allow: "example.com"
1036 # ipsecmod-allow: "nlnetlabs.nl"
1038 # Timeout for REUSE entries in milliseconds.
1039 # tcp-reuse-timeout: 60000
1040 # Max number of queries on a reuse connection.
1041 # max-reuse-tcp-queries: 200
1042 # Timeout in milliseconds for TCP queries to auth servers.
1043 # tcp-auth-query-timeout: 3000
1046 # Python config section. To enable:
1047 # o use --with-pythonmodule to configure before compiling.
1048 # o list python in the module-config string (above) to enable.
1049 # It can be at the start, it gets validated results, or just before
1050 # the iterator and process before DNSSEC validation.
1051 # o and give a python-script to run.
1053 # Script file to load
1054 # python-script: "@UNBOUND_SHARE_DIR@/ubmodule-tst.py"
1056 # Dynamic library config section. To enable:
1057 # o use --with-dynlibmodule to configure before compiling.
1058 # o list dynlib in the module-config string (above) to enable.
1059 # It can be placed anywhere, the dynlib module is only a very thin wrapper
1060 # to load modules dynamically.
1061 # o and give a dynlib-file to run. If more than one dynlib entry is listed in
1062 # the module-config then you need one dynlib-file per instance.
1064 # Script file to load
1065 # dynlib-file: "@UNBOUND_SHARE_DIR@/dynlib.so"
1067 # Remote control config section.
1069 # Enable remote control with unbound-control(8) here.
1070 # set up the keys and certificates with unbound-control-setup.
1071 # control-enable: no
1073 # what interfaces are listened to for remote control.
1074 # give 0.0.0.0 and ::0 to listen to all interfaces.
1075 # set to an absolute path to use a unix local name pipe, certificates
1076 # are not used for that, so key and cert files need not be present.
1077 # control-interface: 127.0.0.1
1078 # control-interface: ::1
1080 # port number for remote control operations.
1081 # control-port: 8953
1083 # for localhost, you can disable use of TLS by setting this to "no"
1084 # For local sockets this option is ignored, and TLS is not used.
1085 # control-use-cert: "yes"
1087 # Unbound server key file.
1088 # server-key-file: "@UNBOUND_RUN_DIR@/unbound_server.key"
1090 # Unbound server certificate file.
1091 # server-cert-file: "@UNBOUND_RUN_DIR@/unbound_server.pem"
1093 # unbound-control key file.
1094 # control-key-file: "@UNBOUND_RUN_DIR@/unbound_control.key"
1096 # unbound-control certificate file.
1097 # control-cert-file: "@UNBOUND_RUN_DIR@/unbound_control.pem"
1100 # Create entries like below, to make all queries for 'example.com' and
1101 # 'example.org' go to the given list of nameservers. list zero or more
1102 # nameservers by hostname or by ipaddress. If you set stub-prime to yes,
1103 # the list is treated as priming hints (default is no).
1104 # With stub-first yes, it attempts without the stub if it fails.
1105 # Consider adding domain-insecure: name and local-zone: name nodefault
1106 # to the server: section if the stub is a locally served zone.
1108 # name: "example.com"
1109 # stub-addr: 192.0.2.68
1112 # stub-tcp-upstream: no
1113 # stub-tls-upstream: no
1116 # name: "example.org"
1117 # stub-host: ns.example.com.
1120 # Create entries like below, to make all queries for 'example.com' and
1121 # 'example.org' go to the given list of servers. These servers have to handle
1122 # recursion to other nameservers. List zero or more nameservers by hostname
1123 # or by ipaddress. Use an entry with name "." to forward all queries.
1124 # If you enable forward-first, it attempts without the forward if it fails.
1126 # name: "example.com"
1127 # forward-addr: 192.0.2.68
1128 # forward-addr: 192.0.2.73@5355 # forward to port 5355.
1130 # forward-tcp-upstream: no
1131 # forward-tls-upstream: no
1132 # forward-no-cache: no
1134 # name: "example.org"
1135 # forward-host: fwd.example.com
1138 # The data for these zones is kept locally, from a file or downloaded.
1139 # The data can be served to downstream clients, or used instead of the
1140 # upstream (which saves a lookup to the upstream). The first example
1141 # has a copy of the root for local usage. The second serves example.org
1142 # authoritatively. zonefile: reads from file (and writes to it if you also
1143 # download it), primary: fetches with AXFR and IXFR, or url to zonefile.
1144 # With allow-notify: you can give additional (apart from primaries and urls)
1145 # sources of notifies.
1148 # primary: 199.9.14.201 # b.root-servers.net
1149 # primary: 192.33.4.12 # c.root-servers.net
1150 # primary: 199.7.91.13 # d.root-servers.net
1151 # primary: 192.5.5.241 # f.root-servers.net
1152 # primary: 192.112.36.4 # g.root-servers.net
1153 # primary: 193.0.14.129 # k.root-servers.net
1154 # primary: 192.0.47.132 # xfr.cjr.dns.icann.org
1155 # primary: 192.0.32.132 # xfr.lax.dns.icann.org
1156 # primary: 2001:500:200::b # b.root-servers.net
1157 # primary: 2001:500:2::c # c.root-servers.net
1158 # primary: 2001:500:2d::d # d.root-servers.net
1159 # primary: 2001:500:2f::f # f.root-servers.net
1160 # primary: 2001:500:12::d0d # g.root-servers.net
1161 # primary: 2001:7fd::1 # k.root-servers.net
1162 # primary: 2620:0:2830:202::132 # xfr.cjr.dns.icann.org
1163 # primary: 2620:0:2d0:202::132 # xfr.lax.dns.icann.org
1164 # fallback-enabled: yes
1165 # for-downstream: no
1168 # name: "example.org"
1169 # for-downstream: yes
1172 # zonemd-reject-absence: no
1173 # zonefile: "example.org.zone"
1176 # Create named views. Name must be unique. Map views to requests using
1177 # the access-control-view option. Views can contain zero or more local-zone
1178 # and local-data options. Options from matching views will override global
1179 # options. Global options will be used if no matching view is found.
1180 # With view-first yes, it will try to answer using the global local-zone and
1181 # local-data elements if there is no view specific match.
1184 # local-zone: "example.com" redirect
1185 # local-data: "example.com A 192.0.2.3"
1186 # local-data-ptr: "192.0.2.3 www.example.com"
1189 # name: "anotherview"
1190 # local-zone: "example.com" refuse
1193 # To enable, use --enable-dnscrypt to configure before compiling.
1195 # 1. the keys/certs cannot be produced by Unbound. You can use dnscrypt-wrapper
1196 # for this: https://github.com/cofyc/dnscrypt-wrapper/blob/master/README.md#usage
1197 # 2. dnscrypt channel attaches to an interface. you MUST set interfaces to
1198 # listen on `dnscrypt-port` with the follo0wing snippet:
1200 # interface: 0.0.0.0@443
1201 # interface: ::0@443
1203 # Finally, `dnscrypt` config has its own section.
1205 # dnscrypt-enable: yes
1206 # dnscrypt-port: 443
1207 # dnscrypt-provider: 2.dnscrypt-cert.example.com.
1208 # dnscrypt-secret-key: /path/unbound-conf/keys1/1.key
1209 # dnscrypt-secret-key: /path/unbound-conf/keys2/1.key
1210 # dnscrypt-provider-cert: /path/unbound-conf/keys1/1.cert
1211 # dnscrypt-provider-cert: /path/unbound-conf/keys2/1.cert
1214 # External backend DB as auxiliary cache.
1215 # To enable, use --enable-cachedb to configure before compiling.
1216 # Specify the backend name
1217 # (default is "testframe", which has no use other than for debugging and
1218 # testing) and backend-specific options. The 'cachedb' module must be
1219 # included in module-config, just before the iterator module.
1221 # backend: "testframe"
1222 # # secret seed string to calculate hashed keys
1223 # secret-seed: "default"
1225 # # For "redis" backend:
1226 # # (to enable, use --with-libhiredis to configure before compiling)
1227 # # redis server's IP address or host name
1228 # redis-server-host: 127.0.0.1
1229 # # redis server's TCP port
1230 # redis-server-port: 6379
1231 # # if the server uses a unix socket, set its path, or "" when not used.
1232 # # redis-server-path: "/var/lib/redis/redis-server.sock"
1233 # # if the server uses an AUTH password, specify here, or "" when not used.
1234 # # redis-server-password: ""
1235 # # timeout (in ms) for communication with the redis server
1236 # redis-timeout: 100
1237 # # set timeout on redis records based on DNS response TTL
1238 # redis-expire-records: no
1241 # Add specify domain into set via ipset.
1243 # o use --enable-ipset to configure before compiling;
1244 # o Unbound then needs to run as root user.
1246 # # set name for ip v4 addresses
1247 # name-v4: "list-v4"
1248 # # set name for ip v6 addresses
1249 # name-v6: "list-v6"
1252 # Dnstap logging support, if compiled in by using --enable-dnstap to configure.
1253 # To enable, set the dnstap-enable to yes and also some of
1254 # dnstap-log-..-messages to yes. And select an upstream log destination, by
1255 # socket path, TCP or TLS destination.
1258 # # if set to yes frame streams will be used in bidirectional mode
1259 # dnstap-bidirectional: yes
1260 # dnstap-socket-path: "@DNSTAP_SOCKET_PATH@"
1261 # # if "" use the unix socket in dnstap-socket-path, otherwise,
1262 # # set it to "IPaddress[@port]" of the destination.
1264 # # if set to yes if you want to use TLS to dnstap-ip, no for TCP.
1266 # # name for authenticating the upstream server. or "" disabled.
1267 # dnstap-tls-server-name: ""
1268 # # if "", it uses the cert bundle from the main Unbound config.
1269 # dnstap-tls-cert-bundle: ""
1270 # # key file for client authentication, or "" disabled.
1271 # dnstap-tls-client-key-file: ""
1272 # # cert file for client authentication, or "" disabled.
1273 # dnstap-tls-client-cert-file: ""
1274 # dnstap-send-identity: no
1275 # dnstap-send-version: no
1276 # # if "" it uses the hostname.
1277 # dnstap-identity: ""
1278 # # if "" it uses the package version.
1279 # dnstap-version: ""
1280 # dnstap-log-resolver-query-messages: no
1281 # dnstap-log-resolver-response-messages: no
1282 # dnstap-log-client-query-messages: no
1283 # dnstap-log-client-response-messages: no
1284 # dnstap-log-forwarder-query-messages: no
1285 # dnstap-log-forwarder-response-messages: no
1287 # Response Policy Zones
1288 # RPZ policies. Applied in order of configuration. QNAME, Response IP
1289 # Address, nsdname, nsip and clientip triggers are supported. Supported
1290 # actions are: NXDOMAIN, NODATA, PASSTHRU, DROP, Local Data, tcp-only
1291 # and drop. Policies can be loaded from a file, or using zone
1292 # transfer, or using HTTP. The respip module needs to be added
1293 # to the module-config, e.g.: module-config: "respip validator iterator".
1295 # name: "rpz.example.com"
1296 # zonefile: "rpz.example.com"
1297 # primary: 192.0.2.0
1298 # allow-notify: 192.0.2.0/32
1299 # url: http://www.example.com/rpz.example.org.zone
1300 # rpz-action-override: cname
1301 # rpz-cname-override: www.example.org
1303 # rpz-log-name: "example policy"
1304 # rpz-signal-nxdomain-ra: no
1305 # for-downstream: no