2 # Example configuration file.
4 # See unbound.conf(5) man page, version 1.6.0.
8 #Use this to include other text into the file.
9 #include: "otherfile.conf"
11 # The server clause sets the main parameters.
13 # whitespace is not necessary, but looks cleaner.
15 # verbosity number, 0 is least verbose. 1 is default.
18 # print statistics to the log (for every thread) every N seconds.
19 # Set to "" or 0 to disable. Default is disabled.
20 # statistics-interval: 0
22 # enable cumulative statistics, without clearing them after printing.
23 # statistics-cumulative: no
25 # enable extended statistics (query types, answer codes, status)
26 # printed from unbound-control. default off, because of speed.
27 # extended-statistics: no
29 # number of threads to create. 1 disables threading.
32 # specify the interfaces to answer queries from by ip-address.
33 # The default is to listen to localhost (127.0.0.1 and ::1).
34 # specify 0.0.0.0 and ::0 to bind to all available interfaces.
35 # specify every interface[@port] on a new 'interface:' labelled line.
36 # The listen interfaces are not changed on reload, only on restart.
37 # interface: 192.0.2.153
38 # interface: 192.0.2.154
39 # interface: 192.0.2.154@5003
40 # interface: 2001:DB8::5
42 # enable this feature to copy the source address of queries to reply.
43 # Socket options are not supported on all platforms. experimental.
44 # interface-automatic: no
46 # port to answer queries from
49 # specify the interfaces to send outgoing queries to authoritative
50 # server from by ip-address. If none, the default (all) interface
51 # is used. Specify every interface on a 'outgoing-interface:' line.
52 # outgoing-interface: 192.0.2.153
53 # outgoing-interface: 2001:DB8::5
54 # outgoing-interface: 2001:DB8::6
56 # Specify a netblock to use remainder 64 bits as random bits for
57 # upstream queries. Uses freebind option (Linux).
58 # outgoing-interface: 2001:DB8::/64
59 # Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo
60 # And: ip -6 route add local 2001:db8::/64 dev lo
61 # And set prefer-ip6: yes to use the ip6 randomness from a netblock.
62 # Set this to yes to prefer ipv6 upstream servers over ipv4.
65 # number of ports to allocate per thread, determines the size of the
66 # port range that can be open simultaneously. About double the
67 # num-queries-per-thread, or, use as many as the OS will allow you.
68 # outgoing-range: 4096
70 # permit unbound to use this port number or port range for
71 # making outgoing queries, using an outgoing interface.
72 # outgoing-port-permit: 32768
74 # deny unbound the use this of port number or port range for
75 # making outgoing queries, using an outgoing interface.
76 # Use this to make sure unbound does not grab a UDP port that some
77 # other server on this computer needs. The default is to avoid
78 # IANA-assigned port numbers.
79 # If multiple outgoing-port-permit and outgoing-port-avoid options
80 # are present, they are processed in order.
81 # outgoing-port-avoid: "3200-3208"
83 # number of outgoing simultaneous tcp buffers to hold per thread.
84 # outgoing-num-tcp: 10
86 # number of incoming simultaneous tcp buffers to hold per thread.
87 # incoming-num-tcp: 10
89 # buffer size for UDP port 53 incoming (SO_RCVBUF socket option).
90 # 0 is system default. Use 4m to catch query spikes for busy servers.
93 # buffer size for UDP port 53 outgoing (SO_SNDBUF socket option).
94 # 0 is system default. Use 4m to handle spikes on very busy servers.
97 # use SO_REUSEPORT to distribute queries over threads.
100 # use IP_TRANSPARENT so the interface: addresses can be non-local
101 # and you can config non-existing IPs that are going to work later on
102 # (uses IP_BINDANY on FreeBSD).
105 # use IP_FREEBIND so the interface: addresses can be non-local
106 # and you can bind to nonexisting IPs and interfaces that are down.
107 # Linux only. On Linux you also have ip-transparent that is similar.
110 # EDNS reassembly buffer to advertise to UDP peers (the actual buffer
111 # is set with msg-buffer-size). 1480 can solve fragmentation (timeouts).
112 # edns-buffer-size: 4096
114 # Maximum UDP response size (not applied to TCP response).
115 # Suggested values are 512 to 4096. Default is 4096. 65536 disables it.
118 # buffer size for handling DNS data. No messages larger than this
119 # size can be sent or received, by UDP or TCP. In bytes.
120 # msg-buffer-size: 65552
122 # the amount of memory to use for the message cache.
123 # plain value in bytes or you can append k, m or G. default is "4Mb".
126 # the number of slabs to use for the message cache.
127 # the number of slabs must be a power of 2.
128 # more slabs reduce lock contention, but fragment memory usage.
131 # the number of queries that a thread gets to service.
132 # num-queries-per-thread: 1024
134 # if very busy, 50% queries run to completion, 50% get timeout in msec
135 # jostle-timeout: 200
137 # msec to wait before close of port on timeout UDP. 0 disables.
140 # the amount of memory to use for the RRset cache.
141 # plain value in bytes or you can append k, m or G. default is "4Mb".
142 # rrset-cache-size: 4m
144 # the number of slabs to use for the RRset cache.
145 # the number of slabs must be a power of 2.
146 # more slabs reduce lock contention, but fragment memory usage.
147 # rrset-cache-slabs: 4
149 # the time to live (TTL) value lower bound, in seconds. Default 0.
150 # If more than an hour could easily give trouble due to stale data.
153 # the time to live (TTL) value cap for RRsets and messages in the
154 # cache. Items are not cached for longer. In seconds.
155 # cache-max-ttl: 86400
157 # the time to live (TTL) value cap for negative responses in the cache
158 # cache-max-negative-ttl: 3600
160 # the time to live (TTL) value for cached roundtrip times, lameness and
161 # EDNS version information for hosts. In seconds.
162 # infra-host-ttl: 900
164 # minimum wait time for responses, increase if uplink is long. In msec.
165 # infra-cache-min-rtt: 50
167 # the number of slabs to use for the Infrastructure cache.
168 # the number of slabs must be a power of 2.
169 # more slabs reduce lock contention, but fragment memory usage.
170 # infra-cache-slabs: 4
172 # the maximum number of hosts that are cached (roundtrip, EDNS, lame).
173 # infra-cache-numhosts: 10000
175 # define a number of tags here, use with local-zone, access-control.
176 # repeat the define-tag statement to add additional tags.
177 # define-tag: "tag1 tag2 tag3"
179 # Enable IPv4, "yes" or "no".
182 # Enable IPv6, "yes" or "no".
185 # Enable UDP, "yes" or "no".
188 # Enable TCP, "yes" or "no".
191 # upstream connections use TCP only (and no UDP), "yes" or "no"
192 # useful for tunneling scenarios, default no.
195 # Maximum segment size (MSS) of TCP socket on which the server
196 # responds to queries. Default is 0, system default MSS.
199 # Maximum segment size (MSS) of TCP socket for outgoing queries.
200 # Default is 0, system default MSS.
201 # outgoing-tcp-mss: 0
203 # Detach from the terminal, run in background, "yes" or "no".
206 # control which clients are allowed to make (recursive) queries
207 # to this server. Specify classless netblocks with /size and action.
208 # By default everything is refused, except for localhost.
209 # Choose deny (drop message), refuse (polite error reply),
210 # allow (recursive ok), allow_snoop (recursive and nonrecursive ok)
211 # deny_non_local (drop queries unless can be answered from local-data)
212 # refuse_non_local (like deny_non_local but polite error reply).
213 # access-control: 0.0.0.0/0 refuse
214 # access-control: 127.0.0.0/8 allow
215 # access-control: ::0/0 refuse
216 # access-control: ::1 allow
217 # access-control: ::ffff:127.0.0.1 allow
219 # tag access-control with list of tags (in "" with spaces between)
220 # Clients using this access control element use localzones that
221 # are tagged with one of these tags.
222 # access-control-tag: 192.0.2.0/24 "tag2 tag3"
224 # set action for particular tag for given access control element
225 # if you have multiple tag values, the tag used to lookup the action
226 # is the first tag match between access-control-tag and local-zone-tag
227 # where "first" comes from the order of the define-tag values.
228 # access-control-tag-action: 192.0.2.0/24 tag3 refuse
230 # set redirect data for particular tag for access control element
231 # access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1"
233 # Set view for access control element
234 # access-control-view: 192.0.2.0/24 viewname
236 # if given, a chroot(2) is done to the given directory.
237 # i.e. you can chroot to the working directory, for example,
238 # for extra security, but make sure all files are in that directory.
240 # If chroot is enabled, you should pass the configfile (from the
241 # commandline) as a full path from the original root. After the
242 # chroot has been performed the now defunct portion of the config
243 # file path is removed to be able to reread the config after a reload.
245 # All other file paths (working dir, logfile, roothints, and
246 # key files) can be specified in several ways:
247 # o as an absolute path relative to the new root.
248 # o as a relative path to the working directory.
249 # o as an absolute path relative to the original root.
250 # In the last case the path is adjusted to remove the unused portion.
252 # The pid file can be absolute and outside of the chroot, it is
253 # written just prior to performing the chroot and dropping permissions.
255 # Additionally, unbound may need to access /dev/random (for entropy).
256 # How to do this is specific to your OS.
258 # If you give "" no chroot is performed. The path must not end in a /.
259 # chroot: "@UNBOUND_CHROOT_DIR@"
261 # if given, user privileges are dropped (after binding port),
262 # and the given username is assumed. Default is user "unbound".
263 # If you give "" no privileges are dropped.
264 # username: "@UNBOUND_USERNAME@"
266 # the working directory. The relative files in this config are
267 # relative to this directory. If you give "" the working directory
269 # If you give a server: directory: dir before include: file statements
270 # then those includes can be relative to the working directory.
271 # directory: "@UNBOUND_RUN_DIR@"
273 # the log file, "" means log to stderr.
274 # Use of this option sets use-syslog to "no".
277 # Log to syslog(3) if yes. The log facility LOG_DAEMON is used to
278 # log to. If yes, it overrides the logfile.
281 # Log identity to report. if empty, defaults to the name of argv[0]
282 # (usually "unbound").
285 # print UTC timestamp in ascii to logfile, default is epoch in seconds.
288 # print one line with time, IP, name, type, class for every query.
291 # the pid file. Can be an absolute path outside of chroot/work dir.
292 # pidfile: "@UNBOUND_PIDFILE@"
294 # file to read root hints from.
295 # get one from https://www.internic.net/domain/named.cache
298 # enable to not answer id.server and hostname.bind queries.
301 # enable to not answer version.server and version.bind queries.
304 # the identity to report. Leave "" or default to return hostname.
307 # the version to report. Leave "" or default to return package version.
310 # the target fetch policy.
311 # series of integers describing the policy per dependency depth.
312 # The number of values in the list determines the maximum dependency
313 # depth the recursor will pursue before giving up. Each integer means:
314 # -1 : fetch all targets opportunistically,
315 # 0: fetch on demand,
316 # positive value: fetch that many targets opportunistically.
317 # Enclose the list of numbers between quotes ("").
318 # target-fetch-policy: "3 2 1 0 0"
320 # Harden against very small EDNS buffer sizes.
321 # harden-short-bufsize: no
323 # Harden against unseemly large queries.
324 # harden-large-queries: no
326 # Harden against out of zone rrsets, to avoid spoofing attempts.
329 # Harden against receiving dnssec-stripped data. If you turn it
330 # off, failing to validate dnskey data for a trustanchor will
331 # trigger insecure mode for that zone (like without a trustanchor).
332 # Default on, which insists on dnssec data for trust-anchored zones.
333 # harden-dnssec-stripped: yes
335 # Harden against queries that fall under dnssec-signed nxdomain names.
336 # harden-below-nxdomain: no
338 # Harden the referral path by performing additional queries for
339 # infrastructure data. Validates the replies (if possible).
340 # Default off, because the lookups burden the server. Experimental
341 # implementation of draft-wijngaards-dnsext-resolver-side-mitigation.
342 # harden-referral-path: no
344 # Harden against algorithm downgrade when multiple algorithms are
345 # advertised in the DS record. If no, allows the weakest algorithm
346 # to validate the zone.
347 # harden-algo-downgrade: no
349 # Sent minimum amount of information to upstream servers to enhance
350 # privacy. Only sent minimum required labels of the QNAME and set QTYPE
351 # to NS when possible.
352 # qname-minimisation: no
354 # QNAME minimisation in strict mode. Do not fall-back to sending full
355 # QNAME to potentially broken nameservers. A lot of domains will not be
356 # resolvable when this option in enabled.
357 # This option only has effect when qname-minimisation is enabled.
358 # qname-minimisation-strict: no
360 # Use 0x20-encoded random bits in the query to foil spoof attempts.
361 # This feature is an experimental implementation of draft dns-0x20.
362 # use-caps-for-id: no
364 # Domains (and domains in them) without support for dns-0x20 and
365 # the fallback fails because they keep sending different answers.
366 # caps-whitelist: "licdn.com"
367 # caps-whitelist: "senderbase.org"
369 # Enforce privacy of these addresses. Strips them away from answers.
370 # It may cause DNSSEC validation to additionally mark it as bogus.
371 # Protects against 'DNS Rebinding' (uses browser as network proxy).
372 # Only 'private-domain' and 'local-data' names are allowed to have
373 # these private addresses. No default.
374 # private-address: 10.0.0.0/8
375 # private-address: 172.16.0.0/12
376 # private-address: 192.168.0.0/16
377 # private-address: 169.254.0.0/16
378 # private-address: fd00::/8
379 # private-address: fe80::/10
380 # private-address: ::ffff:0:0/96
382 # Allow the domain (and its subdomains) to contain private addresses.
383 # local-data statements are allowed to contain private addresses too.
384 # private-domain: "example.com"
386 # If nonzero, unwanted replies are not only reported in statistics,
387 # but also a running total is kept per thread. If it reaches the
388 # threshold, a warning is printed and a defensive action is taken,
389 # the cache is cleared to flush potential poison out of it.
390 # A suggested value is 10000000, the default is 0 (turned off).
391 # unwanted-reply-threshold: 0
393 # Do not query the following addresses. No DNS queries are sent there.
394 # List one address per entry. List classless netblocks with /size,
395 # do-not-query-address: 127.0.0.1/8
396 # do-not-query-address: ::1
398 # if yes, the above default do-not-query-address entries are present.
399 # if no, localhost can be queried (for testing and debugging).
400 # do-not-query-localhost: yes
402 # if yes, perform prefetching of almost expired message cache entries.
405 # if yes, perform key lookups adjacent to normal lookups.
408 # if yes, Unbound rotates RRSet order in response.
409 # rrset-roundrobin: no
411 # if yes, Unbound doesn't insert authority/additional sections
412 # into response messages when those sections are not required.
413 # minimal-responses: no
415 # true to disable DNSSEC lameness check in iterator.
416 # disable-dnssec-lame-check: no
418 # module configuration of the server. A string with identifiers
419 # separated by spaces. Syntax: "[dns64] [validator] iterator"
420 # module-config: "validator iterator"
422 # File with trusted keys, kept uptodate using RFC5011 probes,
423 # initial file like trust-anchor-file, then it stores metadata.
424 # Use several entries, one per domain name, to track multiple zones.
426 # If you want to perform DNSSEC validation, run unbound-anchor before
427 # you start unbound (i.e. in the system boot scripts). And enable:
428 # Please note usage of unbound-anchor root anchor is at your own risk
429 # and under the terms of our LICENSE (see that file in the source).
430 # auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@"
432 # File with DLV trusted keys. Same format as trust-anchor-file.
433 # There can be only one DLV configured, it is trusted from root down.
434 # DLV is going to be decommissioned. Please do not use it any more.
435 # dlv-anchor-file: "dlv.isc.org.key"
437 # File with trusted keys for validation. Specify more than one file
438 # with several entries, one file per entry.
439 # Zone file format, with DS and DNSKEY entries.
440 # Note this gets out of date, use auto-trust-anchor-file please.
441 # trust-anchor-file: ""
443 # Trusted key for validation. DS or DNSKEY. specify the RR on a
444 # single line, surrounded by "". TTL is ignored. class is IN default.
445 # Note this gets out of date, use auto-trust-anchor-file please.
446 # (These examples are from August 2007 and may not be valid anymore).
447 # trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ=="
448 # trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A"
450 # File with trusted keys for validation. Specify more than one file
451 # with several entries, one file per entry. Like trust-anchor-file
452 # but has a different file format. Format is BIND-9 style format,
453 # the trusted-keys { name flag proto algo "key"; }; clauses are read.
454 # you need external update procedures to track changes in keys.
455 # trusted-keys-file: ""
457 # Ignore chain of trust. Domain is treated as insecure.
458 # domain-insecure: "example.com"
460 # Override the date for validation with a specific fixed date.
461 # Do not set this unless you are debugging signature inception
462 # and expiration. "" or "0" turns the feature off. -1 ignores date.
463 # val-override-date: ""
465 # The time to live for bogus data, rrsets and messages. This avoids
466 # some of the revalidation, until the time interval expires. in secs.
469 # The signature inception and expiration dates are allowed to be off
470 # by 10% of the signature lifetime (expir-incep) from our local clock.
471 # This leeway is capped with a minimum and a maximum. In seconds.
472 # val-sig-skew-min: 3600
473 # val-sig-skew-max: 86400
475 # Should additional section of secure message also be kept clean of
476 # unsecure data. Useful to shield the users of this validator from
477 # potential bogus data in the additional section. All unsigned data
478 # in the additional section is removed from secure messages.
479 # val-clean-additional: yes
481 # Turn permissive mode on to permit bogus messages. Thus, messages
482 # for which security checks failed will be returned to clients,
483 # instead of SERVFAIL. It still performs the security checks, which
484 # result in interesting log files and possibly the AD bit in
485 # replies if the message is found secure. The default is off.
486 # val-permissive-mode: no
488 # Ignore the CD flag in incoming queries and refuse them bogus data.
489 # Enable it if the only clients of unbound are legacy servers (w2008)
490 # that set CD but cannot validate themselves.
493 # Serve expired reponses from cache, with TTL 0 in the response,
494 # and then attempt to fetch the data afresh.
497 # Have the validator log failed validations for your diagnosis.
498 # 0: off. 1: A line per failed user query. 2: With reason and bad IP.
501 # It is possible to configure NSEC3 maximum iteration counts per
502 # keysize. Keep this table very short, as linear search is done.
503 # A message with an NSEC3 with larger count is marked insecure.
504 # List in ascending order the keysize and count values.
505 # val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500"
507 # instruct the auto-trust-anchor-file probing to add anchors after ttl.
508 # add-holddown: 2592000 # 30 days
510 # instruct the auto-trust-anchor-file probing to del anchors after ttl.
511 # del-holddown: 2592000 # 30 days
513 # auto-trust-anchor-file probing removes missing anchors after ttl.
514 # If the value 0 is given, missing anchors are not removed.
515 # keep-missing: 31622400 # 366 days
517 # debug option that allows very small holddown times for key rollover,
518 # otherwise the RFC mandates probe intervals must be at least 1 hour.
519 # permit-small-holddown: no
521 # the amount of memory to use for the key cache.
522 # plain value in bytes or you can append k, m or G. default is "4Mb".
525 # the number of slabs to use for the key cache.
526 # the number of slabs must be a power of 2.
527 # more slabs reduce lock contention, but fragment memory usage.
530 # the amount of memory to use for the negative cache (used for DLV).
531 # plain value in bytes or you can append k, m or G. default is "1Mb".
534 # By default, for a number of zones a small default 'nothing here'
535 # reply is built-in. Query traffic is thus blocked. If you
536 # wish to serve such zone you can unblock them by uncommenting one
537 # of the nodefault statements below.
538 # You may also have to use domain-insecure: zone to make DNSSEC work,
539 # unless you have your own trust anchors for this zone.
540 # local-zone: "localhost." nodefault
541 # local-zone: "127.in-addr.arpa." nodefault
542 # 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
543 # local-zone: "onion." nodefault
544 # local-zone: "10.in-addr.arpa." nodefault
545 # local-zone: "16.172.in-addr.arpa." nodefault
546 # local-zone: "17.172.in-addr.arpa." nodefault
547 # local-zone: "18.172.in-addr.arpa." nodefault
548 # local-zone: "19.172.in-addr.arpa." nodefault
549 # local-zone: "20.172.in-addr.arpa." nodefault
550 # local-zone: "21.172.in-addr.arpa." nodefault
551 # local-zone: "22.172.in-addr.arpa." nodefault
552 # local-zone: "23.172.in-addr.arpa." nodefault
553 # local-zone: "24.172.in-addr.arpa." nodefault
554 # local-zone: "25.172.in-addr.arpa." nodefault
555 # local-zone: "26.172.in-addr.arpa." nodefault
556 # local-zone: "27.172.in-addr.arpa." nodefault
557 # local-zone: "28.172.in-addr.arpa." nodefault
558 # local-zone: "29.172.in-addr.arpa." nodefault
559 # local-zone: "30.172.in-addr.arpa." nodefault
560 # local-zone: "31.172.in-addr.arpa." nodefault
561 # local-zone: "168.192.in-addr.arpa." nodefault
562 # local-zone: "0.in-addr.arpa." nodefault
563 # local-zone: "254.169.in-addr.arpa." nodefault
564 # local-zone: "2.0.192.in-addr.arpa." nodefault
565 # local-zone: "100.51.198.in-addr.arpa." nodefault
566 # local-zone: "113.0.203.in-addr.arpa." nodefault
567 # local-zone: "255.255.255.255.in-addr.arpa." nodefault
568 # 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
569 # local-zone: "d.f.ip6.arpa." nodefault
570 # local-zone: "8.e.f.ip6.arpa." nodefault
571 # local-zone: "9.e.f.ip6.arpa." nodefault
572 # local-zone: "a.e.f.ip6.arpa." nodefault
573 # local-zone: "b.e.f.ip6.arpa." nodefault
574 # local-zone: "8.b.d.0.1.0.0.2.ip6.arpa." nodefault
575 # And for 64.100.in-addr.arpa. to 127.100.in-addr.arpa.
577 # If unbound is running service for the local host then it is useful
578 # to perform lan-wide lookups to the upstream, and unblock the
579 # long list of local-zones above. If this unbound is a dns server
580 # for a network of computers, disabled is better and stops information
581 # leakage of local lan information.
582 # unblock-lan-zones: no
584 # The insecure-lan-zones option disables validation for
585 # these zones, as if they were all listed as domain-insecure.
586 # insecure-lan-zones: no
588 # a number of locally served zones can be configured.
589 # local-zone: <zone> <type>
590 # local-data: "<resource record string>"
591 # o deny serves local data (if any), else, drops queries.
592 # o refuse serves local data (if any), else, replies with error.
593 # o static serves local data, else, nxdomain or nodata answer.
594 # o transparent gives local data, but resolves normally for other names
595 # o redirect serves the zone data for any subdomain in the zone.
596 # o nodefault can be used to normally resolve AS112 zones.
597 # o typetransparent resolves normally for other types and other names
598 # o inform acts like transparent, but logs client IP address
599 # o inform_deny drops queries and logs client IP address
600 # o always_transparent, always_refuse, always_nxdomain, resolve in
601 # that way but ignore local data for that name.
603 # defaults are localhost address, reverse for 127.0.0.1 and ::1
604 # and nxdomain for AS112 zones. If you configure one of these zones
605 # the default content is omitted, or you can omit it with 'nodefault'.
607 # If you configure local-data without specifying local-zone, by
608 # default a transparent local-zone is created for the data.
610 # You can add locally served data with
611 # local-zone: "local." static
612 # local-data: "mycomputer.local. IN A 192.0.2.51"
613 # local-data: 'mytext.local TXT "content of text record"'
615 # You can override certain queries with
616 # local-data: "adserver.example.com A 127.0.0.1"
618 # You can redirect a domain to a fixed address with
619 # (this makes example.com, www.example.com, etc, all go to 192.0.2.3)
620 # local-zone: "example.com" redirect
621 # local-data: "example.com A 192.0.2.3"
623 # Shorthand to make PTR records, "IPv4 name" or "IPv6 name".
624 # You can also add PTR records using local-data directly, but then
625 # you need to do the reverse notation yourself.
626 # local-data-ptr: "192.0.2.3 www.example.com"
628 # tag a localzone with a list of tag names (in "" with spaces between)
629 # local-zone-tag: "example.com" "tag2 tag3"
631 # add a netblock specific override to a localzone, with zone type
632 # local-zone-override: "example.com" 192.0.2.0/24 refuse
634 # service clients over SSL (on the TCP sockets), with plain DNS inside
635 # the SSL stream. Give the certificate to use and private key.
636 # default is "" (disabled). requires restart to take effect.
637 # ssl-service-key: "path/to/privatekeyfile.key"
638 # ssl-service-pem: "path/to/publiccertfile.pem"
641 # request upstream over SSL (with plain DNS inside the SSL stream).
642 # Default is no. Can be turned on and off with unbound-control.
645 # DNS64 prefix. Must be specified when DNS64 is use.
646 # Enable dns64 in module-config. Used to synthesize IPv6 from IPv4.
647 # dns64-prefix: 64:ff9b::0/96
649 # ratelimit for uncached, new queries, this limits recursion effort.
650 # ratelimiting is experimental, and may help against randomqueryflood.
651 # if 0(default) it is disabled, otherwise state qps allowed per zone.
654 # ratelimits are tracked in a cache, size in bytes of cache (or k,m).
656 # ratelimit cache slabs, reduces lock contention if equal to cpucount.
659 # 0 blocks when ratelimited, otherwise let 1/xth traffic through
660 # ratelimit-factor: 10
662 # override the ratelimit for a specific domain name.
663 # give this setting multiple times to have multiple overrides.
664 # ratelimit-for-domain: example.com 1000
665 # override the ratelimits for all domains below a domain name
666 # can give this multiple times, the name closest to the zone is used.
667 # ratelimit-below-domain: com 1000
669 # Python config section. To enable:
670 # o use --with-pythonmodule to configure before compiling.
671 # o list python in the module-config string (above) to enable.
672 # o and give a python-script to run.
674 # Script file to load
675 # python-script: "@UNBOUND_SHARE_DIR@/ubmodule-tst.py"
677 # Remote control config section.
679 # Enable remote control with unbound-control(8) here.
680 # set up the keys and certificates with unbound-control-setup.
683 # Set to no and use an absolute path as control-interface to use
684 # a unix local named pipe for unbound-control.
685 # control-use-cert: yes
687 # what interfaces are listened to for remote control.
688 # give 0.0.0.0 and ::0 to listen to all interfaces.
689 # control-interface: 127.0.0.1
690 # control-interface: ::1
692 # port number for remote control operations.
695 # unbound server key file.
696 # server-key-file: "@UNBOUND_RUN_DIR@/unbound_server.key"
698 # unbound server certificate file.
699 # server-cert-file: "@UNBOUND_RUN_DIR@/unbound_server.pem"
701 # unbound-control key file.
702 # control-key-file: "@UNBOUND_RUN_DIR@/unbound_control.key"
704 # unbound-control certificate file.
705 # control-cert-file: "@UNBOUND_RUN_DIR@/unbound_control.pem"
708 # Create entries like below, to make all queries for 'example.com' and
709 # 'example.org' go to the given list of nameservers. list zero or more
710 # nameservers by hostname or by ipaddress. If you set stub-prime to yes,
711 # the list is treated as priming hints (default is no).
712 # With stub-first yes, it attempts without the stub if it fails.
713 # Consider adding domain-insecure: name and local-zone: name nodefault
714 # to the server: section if the stub is a locally served zone.
716 # name: "example.com"
717 # stub-addr: 192.0.2.68
720 # stub-ssl-upstream: no
722 # name: "example.org"
723 # stub-host: ns.example.com.
726 # Create entries like below, to make all queries for 'example.com' and
727 # 'example.org' go to the given list of servers. These servers have to handle
728 # recursion to other nameservers. List zero or more nameservers by hostname
729 # or by ipaddress. Use an entry with name "." to forward all queries.
730 # If you enable forward-first, it attempts without the forward if it fails.
732 # name: "example.com"
733 # forward-addr: 192.0.2.68
734 # forward-addr: 192.0.2.73@5355 # forward to port 5355.
736 # forward-ssl-upstream: no
738 # name: "example.org"
739 # forward-host: fwd.example.com
742 # Create named views. Name must be unique. Map views to requests using
743 # the access-control-view option. Views can contain zero or more local-zone
744 # and local-data options. Options from matching views will override global
745 # options. Global options will be used if no matching view is found.
746 # With view-first yes, it will try to answer using the global local-zone and
747 # local-data elements if there is no view specific match.
750 # local-zone: "example.com" redirect
751 # local-data: "example.com A 192.0.2.3"
754 # name: "anotherview"
755 # local-zone: "example.com" refuse