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  1. [root@efa ~]# cat /etc/unbound/unbound.conf
  2. #
  3. # See unbound.conf(5) man page.
  4. #
  5. # this is a comment.
  6.  
  7. #Use this to include other text into the file.
  8. #include: "otherfile.conf"
  9.  
  10. # The server clause sets the main parameters.
  11. server:
  12. # whitespace is not necessary, but looks cleaner.
  13.  
  14. # verbosity number, 0 is least verbose. 1 is default.
  15. verbosity: 1
  16.  
  17. # print statistics to the log (for every thread) every N seconds.
  18. # Set to "" or 0 to disable. Default is disabled.
  19. # Needed for munin plugin
  20. statistics-interval: 0
  21.  
  22. # enable cumulative statistics, without clearing them after printing.
  23. # Needed for munin plugin
  24. statistics-cumulative: no
  25.  
  26. # enable extended statistics (query types, answer codes, status)
  27. # printed from unbound-control. default off, because of speed.
  28. # Needed for munin plugin
  29. extended-statistics: yes
  30.  
  31. # number of threads to create. 1 disables threading.
  32. num-threads: 2
  33.  
  34. # specify the interfaces to answer queries from by ip-address.
  35. # The default is to listen to localhost (127.0.0.1 and ::1).
  36. # specify 0.0.0.0 and ::0 to bind to all available interfaces.
  37. # specify every interface on a new 'interface:' labelled line.
  38. # The listen interfaces are not changed on reload, only on restart.
  39. # interface: 0.0.0.0
  40. # interface: ::0
  41. # interface: 192.0.2.153
  42. # interface: 192.0.2.154
  43. # interface: 2001:DB8::5
  44. #
  45. # for dns over tls and raw dns over port 80
  46. # interface: 0.0.0.0@443
  47. # interface: ::0@443
  48. # interface: 0.0.0.0@80
  49. # interface: ::0@80
  50.  
  51. # enable this feature to copy the source address of queries to reply.
  52. # Socket options are not supported on all platforms. experimental.
  53. # interface-automatic: yes
  54. #
  55. # NOTE: Enable this option when specifying interface 0.0.0.0 or ::0
  56. # NOTE: Disabled per Fedora policy not to listen to * on default install
  57. # NOTE: If deploying on non-default port, eg 80/443, this needs to be di sabled
  58. interface-automatic: no
  59.  
  60. # port to answer queries from
  61. # port: 53
  62.  
  63. # specify the interfaces to send outgoing queries to authoritative
  64. # server from by ip-address. If none, the default (all) interface
  65. # is used. Specify every interface on a 'outgoing-interface:' line.
  66. # outgoing-interface: 192.0.2.153
  67. # outgoing-interface: 2001:DB8::5
  68. # outgoing-interface: 2001:DB8::6
  69.  
  70. # number of ports to allocate per thread, determines the size of the
  71. # port range that can be open simultaneously.
  72. # outgoing-range: 4096
  73.  
  74. # permit unbound to use this port number or port range for
  75. # making outgoing queries, using an outgoing interface.
  76. # outgoing-port-permit: 32768
  77.  
  78. # deny unbound the use this of port number or port range for
  79. # making outgoing queries, using an outgoing interface.
  80. # Use this to make sure unbound does not grab a UDP port that some
  81. # other server on this computer needs. The default is to avoid
  82. # IANA-assigned port numbers.
  83. # outgoing-port-avoid: "3200-3208"
  84.  
  85. # number of outgoing simultaneous tcp buffers to hold per thread.
  86. # outgoing-num-tcp: 10
  87.  
  88. # number of incoming simultaneous tcp buffers to hold per thread.
  89. # incoming-num-tcp: 10
  90.  
  91. # buffer size for UDP port 53 incoming (SO_RCVBUF socket option).
  92. # 0 is system default. Use 4m to catch query spikes for busy servers.
  93. # so-rcvbuf: 0
  94.  
  95. # buffer size for UDP port 53 outgoing (SO_SNDBUF socket option).
  96. # 0 is system default. Use 4m to handle spikes on very busy servers.
  97. # so-sndbuf: 0
  98.  
  99. # EDNS reassembly buffer to advertise to UDP peers (the actual buffer
  100. # is set with msg-buffer-size). 1480 can solve fragmentation (timeouts).
  101. # edns-buffer-size: 4096
  102.  
  103. # buffer size for handling DNS data. No messages larger than this
  104. # size can be sent or received, by UDP or TCP. In bytes.
  105. # msg-buffer-size: 65552
  106.  
  107. # the amount of memory to use for the message cache.
  108. # plain value in bytes or you can append k, m or G. default is "4Mb".
  109. # msg-cache-size: 4m
  110.  
  111. # the number of slabs to use for the message cache.
  112. # the number of slabs must be a power of 2.
  113. # more slabs reduce lock contention, but fragment memory usage.
  114. # msg-cache-slabs: 4
  115.  
  116. # the number of queries that a thread gets to service.
  117. # num-queries-per-thread: 1024
  118.  
  119. # if very busy, 50% queries run to completion, 50% get timeout in msec
  120. # jostle-timeout: 200
  121.  
  122. # the amount of memory to use for the RRset cache.
  123. # plain value in bytes or you can append k, m or G. default is "4Mb".
  124. # rrset-cache-size: 4m
  125.  
  126. # the number of slabs to use for the RRset cache.
  127. # the number of slabs must be a power of 2.
  128. # more slabs reduce lock contention, but fragment memory usage.
  129. # rrset-cache-slabs: 4
  130.  
  131. # the time to live (TTL) value lower bound, in seconds. Default 0.
  132. # If more than an hour could easily give trouble due to stale data.
  133. # cache-min-ttl: 0
  134.  
  135. # the time to live (TTL) value cap for RRsets and messages in the
  136. # cache. Items are not cached for longer. In seconds.
  137. # cache-max-ttl: 86400
  138.  
  139. # the time to live (TTL) value for cached roundtrip times, lameness
  140. # and EDNS version information for hosts. In seconds.
  141. # infra-host-ttl: 900
  142.  
  143. # the number of slabs to use for the Infrastructure cache.
  144. # the number of slabs must be a power of 2.
  145. # more slabs reduce lock contention, but fragment memory usage.
  146. # infra-cache-slabs: 4
  147.  
  148. # the maximum number of hosts that are cached (roundtrip, EDNS, lame).
  149. # infra-cache-numhosts: 10000
  150.  
  151. # Enable IPv4, "yes" or "no".
  152. # do-ip4: yes
  153.  
  154. # Enable IPv6, "yes" or "no".
  155. do-ip6: no
  156.  
  157. # Enable UDP, "yes" or "no".
  158. # NOTE: if setting up an unbound on tls443 for public use, you might wan t to
  159. # disable UDP to avoid being used in DNS amplification attacks.
  160. # do-udp: yes
  161.  
  162. # Enable TCP, "yes" or "no".
  163. # do-tcp: yes
  164.  
  165. # upstream connections use TCP only (and no UDP), "yes" or "no"
  166. # useful for tunneling scenarios, default no.
  167. # tcp-upstream: no
  168.  
  169. # Detach from the terminal, run in background, "yes" or "no".
  170. # do-daemonize: yes
  171.  
  172. # control which clients are allowed to make (recursive) queries
  173. # to this server. Specify classless netblocks with /size and action.
  174. # By default everything is refused, except for localhost.
  175. # Choose deny (drop message), refuse (polite error reply),
  176. # allow (recursive ok), allow_snoop (recursive and nonrecursive ok)
  177. # access-control: 0.0.0.0/0 refuse
  178. # access-control: 127.0.0.0/8 allow
  179. # access-control: ::0/0 refuse
  180. # access-control: ::1 allow
  181. # access-control: ::ffff:127.0.0.1 allow
  182.  
  183. # if given, a chroot(2) is done to the given directory.
  184. # i.e. you can chroot to the working directory, for example,
  185. # for extra security, but make sure all files are in that directory.
  186. #
  187. # If chroot is enabled, you should pass the configfile (from the
  188. # commandline) as a full path from the original root. After the
  189. # chroot has been performed the now defunct portion of the config
  190. # file path is removed to be able to reread the config after a reload.
  191. #
  192. # All other file paths (working dir, logfile, roothints, and
  193. # key files) can be specified in several ways:
  194. # o as an absolute path relative to the new root.
  195. # o as a relative path to the working directory.
  196. # o as an absolute path relative to the original root.
  197. # In the last case the path is adjusted to remove the unused portion.
  198. #
  199. # The pid file can be absolute and outside of the chroot, it is
  200. # written just prior to performing the chroot and dropping permissions.
  201. #
  202. # Additionally, unbound may need to access /dev/random (for entropy).
  203. # How to do this is specific to your OS.
  204. #
  205. # If you give "" no chroot is performed. The path must not end in a /.
  206. # chroot: "/var/lib/unbound"
  207. chroot: ""
  208.  
  209. # if given, user privileges are dropped (after binding port),
  210. # and the given username is assumed. Default is user "unbound".
  211. # If you give "" no privileges are dropped.
  212. username: "unbound"
  213.  
  214. # the working directory. The relative files in this config are
  215. # relative to this directory. If you give "" the working directory
  216. # is not changed.
  217. directory: "/etc/unbound"
  218.  
  219. # the log file, "" means log to stderr.
  220. # Use of this option sets use-syslog to "no".
  221. # logfile: ""
  222.  
  223. # Log to syslog(3) if yes. The log facility LOG_DAEMON is used to
  224. # log to, with identity "unbound". If yes, it overrides the logfile.
  225. # use-syslog: yes
  226.  
  227. # print UTC timestamp in ascii to logfile, default is epoch in seconds.
  228. log-time-ascii: yes
  229.  
  230. # the pid file. Can be an absolute path outside of chroot/work dir.
  231. pidfile: "/var/run/unbound/unbound.pid"
  232.  
  233. # file to read root hints from.
  234. # get one from ftp://FTP.INTERNIC.NET/domain/named.cache
  235. # root-hints: ""
  236.  
  237. # enable to not answer id.server and hostname.bind queries.
  238. # hide-identity: no
  239.  
  240. # enable to not answer version.server and version.bind queries.
  241. # hide-version: no
  242.  
  243. # the identity to report. Leave "" or default to return hostname.
  244. # identity: ""
  245.  
  246. # the version to report. Leave "" or default to return package version.
  247. # version: ""
  248.  
  249. # the target fetch policy.
  250. # series of integers describing the policy per dependency depth.
  251. # The number of values in the list determines the maximum dependency
  252. # depth the recursor will pursue before giving up. Each integer means:
  253. # -1 : fetch all targets opportunistically,
  254. # 0: fetch on demand,
  255. # positive value: fetch that many targets opportunistically.
  256. # Enclose the list of numbers between quotes ("").
  257. # target-fetch-policy: "3 2 1 0 0"
  258.  
  259. # Harden against very small EDNS buffer sizes.
  260. # harden-short-bufsize: no
  261.  
  262. # Harden against unseemly large queries.
  263. # harden-large-queries: no
  264.  
  265. # Harden against out of zone rrsets, to avoid spoofing attempts.
  266. harden-glue: yes
  267.  
  268. # Harden against receiving dnssec-stripped data. If you turn it
  269. # off, failing to validate dnskey data for a trustanchor will
  270. # trigger insecure mode for that zone (like without a trustanchor).
  271. # Default on, which insists on dnssec data for trust-anchored zones.
  272. harden-dnssec-stripped: yes
  273.  
  274. # Harden against queries that fall under dnssec-signed nxdomain names.
  275. harden-below-nxdomain: yes
  276.  
  277. # Harden the referral path by performing additional queries for
  278. # infrastructure data. Validates the replies (if possible).
  279. # Default off, because the lookups burden the server. Experimental
  280. # implementation of draft-wijngaards-dnsext-resolver-side-mitigation.
  281. harden-referral-path: yes
  282.  
  283. # Use 0x20-encoded random bits in the query to foil spoof attempts.
  284. # This feature is an experimental implementation of draft dns-0x20.
  285. # (this now fails on all GoDaddy customer domains, so disabled)
  286. use-caps-for-id: no
  287.  
  288. # Enforce privacy of these addresses. Strips them away from answers.
  289. # It may cause DNSSEC validation to additionally mark it as bogus.
  290. # Protects against 'DNS Rebinding' (uses browser as network proxy).
  291. # Only 'private-domain' and 'local-data' names are allowed to have
  292. # these private addresses. No default.
  293. # private-address: 10.0.0.0/8
  294. # private-address: 172.16.0.0/12
  295. # private-address: 192.168.0.0/16
  296. # private-address: 192.254.0.0/16
  297. # private-address: fd00::/8
  298. # private-address: fe80::/10
  299.  
  300. # Allow the domain (and its subdomains) to contain private addresses.
  301. # local-data statements are allowed to contain private addresses too.
  302. # private-domain: "example.com"
  303.  
  304. # If nonzero, unwanted replies are not only reported in statistics,
  305. # but also a running total is kept per thread. If it reaches the
  306. # threshold, a warning is printed and a defensive action is taken,
  307. # the cache is cleared to flush potential poison out of it.
  308. # A suggested value is 10000000, the default is 0 (turned off).
  309. unwanted-reply-threshold: 10000000
  310.  
  311. # Do not query the following addresses. No DNS queries are sent there.
  312. # List one address per entry. List classless netblocks with /size,
  313. # do-not-query-address: 127.0.0.1/8
  314. # do-not-query-address: ::1
  315.  
  316. # if yes, the above default do-not-query-address entries are present.
  317. # if no, localhost can be queried (for testing and debugging).
  318. # do-not-query-localhost: yes
  319.  
  320. # if yes, perform prefetching of almost expired message cache entries.
  321. prefetch: yes
  322.  
  323. # if yes, perform key lookups adjacent to normal lookups.
  324. prefetch-key: yes
  325.  
  326. # if yes, Unbound rotates RRSet order in response.
  327. rrset-roundrobin: yes
  328.  
  329. # if yes, Unbound doesn't insert authority/additional sections
  330. # into response messages when those sections are not required.
  331. minimal-responses: yes
  332.  
  333. # module configuration of the server. A string with identifiers
  334. # separated by spaces. "iterator" or "validator iterator"
  335. module-config: "iterator"
  336.  
  337. # File with DLV trusted keys. Same format as trust-anchor-file.
  338. # There can be only one DLV configured, it is trusted from root down.
  339. # Downloaded from https://secure.isc.org/ops/dlv/dlv.isc.org.key
  340. #
  341. # ISC's DLV registry is being deprecated in the near future, therefore
  342. # it is not used in the default configuration. The use of ISC's DLV
  343. # registry is discouraged.
  344. # dlv-anchor-file: "/etc/unbound/dlv.isc.org.key"
  345.  
  346. # File with trusted keys for validation. Specify more than one file
  347. # with several entries, one file per entry.
  348. # Zone file format, with DS and DNSKEY entries.
  349. # trust-anchor-file: ""
  350.  
  351. # File with trusted keys, kept uptodate using RFC5011 probes,
  352. # initial file like trust-anchor-file, then it stores metadata.
  353. # Use several entries, one per domain name, to track multiple zones.
  354. # auto-trust-anchor-file: ""
  355.  
  356. # Trusted key for validation. DS or DNSKEY. specify the RR on a
  357. # single line, surrounded by "". TTL is ignored. class is IN default.
  358. # (These examples are from August 2007 and may not be valid anymore).
  359. # trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2Bi VmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy3 2DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ=="
  360. # trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A 0BA4D17FA9B038BE4A"
  361.  
  362. # File with trusted keys for validation. Specify more than one file
  363. # with several entries, one file per entry. Like trust-anchor-file
  364. # but has a different file format. Format is BIND-9 style format,
  365. # the trusted-keys { name flag proto algo "key"; }; clauses are read.
  366. # trusted-keys-file: ""
  367. #
  368. # trusted-keys-file: /etc/unbound/rootkey.bind
  369. trusted-keys-file: /etc/unbound/keys.d/*.key
  370. auto-trust-anchor-file: "/var/lib/unbound/root.key"
  371.  
  372. # Ignore chain of trust. Domain is treated as insecure.
  373. # domain-insecure: "example.com"
  374.  
  375. # Override the date for validation with a specific fixed date.
  376. # Do not set this unless you are debugging signature inception
  377. # and expiration. "" or "0" turns the feature off.
  378. # val-override-date: ""
  379.  
  380. # The time to live for bogus data, rrsets and messages. This avoids
  381. # some of the revalidation, until the time interval expires. in secs.
  382. # val-bogus-ttl: 60
  383.  
  384. # The signature inception and expiration dates are allowed to be off
  385. # by 10% of the lifetime of the signature from our local clock.
  386. # This leeway is capped with a minimum and a maximum. In seconds.
  387. # val-sig-skew-min: 3600
  388. # val-sig-skew-max: 86400
  389.  
  390. # Should additional section of secure message also be kept clean of
  391. # unsecure data. Useful to shield the users of this validator from
  392. # potential bogus data in the additional section. All unsigned data
  393. # in the additional section is removed from secure messages.
  394. val-clean-additional: yes
  395.  
  396. # Turn permissive mode on to permit bogus messages. Thus, messages
  397. # for which security checks failed will be returned to clients,
  398. # instead of SERVFAIL. It still performs the security checks, which
  399. # result in interesting log files and possibly the AD bit in
  400. # replies if the message is found secure. The default is off.
  401. # NOTE: TURNING THIS ON DISABLES ALL DNSSEC SECURITY
  402. val-permissive-mode: no
  403.  
  404. # Have the validator log failed validations for your diagnosis.
  405. # 0: off. 1: A line per failed user query. 2: With reason and bad IP.
  406. val-log-level: 1
  407.  
  408. # It is possible to configure NSEC3 maximum iteration counts per
  409. # keysize. Keep this table very short, as linear search is done.
  410. # A message with an NSEC3 with larger count is marked insecure.
  411. # List in ascending order the keysize and count values.
  412. # val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500"
  413.  
  414. # instruct the auto-trust-anchor-file probing to add anchors after ttl.
  415. # add-holddown: 2592000 # 30 days
  416.  
  417. # instruct the auto-trust-anchor-file probing to del anchors after ttl.
  418. # del-holddown: 2592000 # 30 days
  419.  
  420. # auto-trust-anchor-file probing removes missing anchors after ttl.
  421. # If the value 0 is given, missing anchors are not removed.
  422. # keep-missing: 31622400 # 366 days
  423.  
  424. # the amount of memory to use for the key cache.
  425. # plain value in bytes or you can append k, m or G. default is "4Mb".
  426. # key-cache-size: 4m
  427.  
  428. # the number of slabs to use for the key cache.
  429. # the number of slabs must be a power of 2.
  430. # more slabs reduce lock contention, but fragment memory usage.
  431. # key-cache-slabs: 4
  432.  
  433. # the amount of memory to use for the negative cache (used for DLV).
  434. # plain value in bytes or you can append k, m or G. default is "1Mb".
  435. # neg-cache-size: 1m
  436.  
  437. # a number of locally served zones can be configured.
  438. # local-zone: <zone> <type>
  439. # local-data: "<resource record string>"
  440. # o deny serves local data (if any), else, drops queries.
  441. # o refuse serves local data (if any), else, replies with error.
  442. # o static serves local data, else, nxdomain or nodata answer.
  443. # o transparent serves local data, but resolves normally for other names
  444. # o redirect serves the zone data for any subdomain in the zone.
  445. # o nodefault can be used to normally resolve AS112 zones.
  446. # o typetransparent resolves normally for other types and other names
  447. #
  448. # defaults are localhost address, reverse for 127.0.0.1 and ::1
  449. # and nxdomain for AS112 zones. If you configure one of these zones
  450. # the default content is omitted, or you can omit it with 'nodefault'.
  451. #
  452. # If you configure local-data without specifying local-zone, by
  453. # default a transparent local-zone is created for the data.
  454. #
  455. # You can add locally served data with
  456. # local-zone: "local." static
  457. # local-data: "mycomputer.local. IN A 192.0.2.51"
  458. # local-data: 'mytext.local TXT "content of text record"'
  459. #
  460. # You can override certain queries with
  461. # local-data: "adserver.example.com A 127.0.0.1"
  462. #
  463. # You can redirect a domain to a fixed address with
  464. # (this makes example.com, www.example.com, etc, all go to 192.0.2.3)
  465. # local-zone: "example.com" redirect
  466. # local-data: "example.com A 192.0.2.3"
  467. #
  468. # Shorthand to make PTR records, "IPv4 name" or "IPv6 name".
  469. # You can also add PTR records using local-data directly, but then
  470. # you need to do the reverse notation yourself.
  471. # local-data-ptr: "192.0.2.3 www.example.com"
  472.  
  473. include: /etc/unbound/local.d/*.conf
  474.  
  475. # service clients over SSL (on the TCP sockets), with plain DNS inside
  476. # the SSL stream. Give the certificate to use and private key.
  477. # default is "" (disabled). requires restart to take effect.
  478. # ssl-service-key: "/etc/unbound/unbound_server.key"
  479. # ssl-service-pem: "/etc/unbound/unbound_server.pem"
  480. # ssl-port: 443
  481.  
  482. # request upstream over SSL (with plain DNS inside the SSL stream).
  483. # Default is no. Can be turned on and off with unbound-control.
  484. # ssl-upstream: no
  485.  
  486. ## Python config section. To enable:
  487. ## o use --with-pythonmodule to configure before compiling.
  488. ## o list python in the module-config string (above) to enable.
  489. ## o and give a python-script to run.
  490. #python:
  491. # # Script file to load
  492. # # python-script: "/etc/unbound/ubmodule-tst.py"
  493.  
  494.  
  495. # Remote control config section.
  496. remote-control:
  497. # Enable remote control with unbound-control(8) here.
  498. # set up the keys and certificates with unbound-control-setup.
  499. # Note: required for unbound-munin package
  500. control-enable: yes
  501.  
  502. # what interfaces are listened to for remote control.
  503. # give 0.0.0.0 and ::0 to listen to all interfaces.
  504. # control-interface: 127.0.0.1
  505. # control-interface: ::1
  506.  
  507. # port number for remote control operations.
  508. # control-port: 953
  509.  
  510. # unbound server key file.
  511. server-key-file: "/etc/unbound/unbound_server.key"
  512.  
  513. # unbound server certificate file.
  514. server-cert-file: "/etc/unbound/unbound_server.pem"
  515.  
  516. # unbound-control key file.
  517. control-key-file: "/etc/unbound/unbound_control.key"
  518.  
  519. # unbound-control certificate file.
  520. control-cert-file: "/etc/unbound/unbound_control.pem"
  521.  
  522. # Stub and Forward zones
  523.  
  524. include: /etc/unbound/conf.d/*.conf
  525.  
  526. # Stub zones.
  527. # Create entries like below, to make all queries for 'example.com' and
  528. # 'example.org' go to the given list of nameservers. list zero or more
  529. # nameservers by hostname or by ipaddress. If you set stub-prime to yes,
  530. # the list is treated as priming hints (default is no).
  531. # stub-zone:
  532. # name: "example.com"
  533. # stub-addr: 192.0.2.68
  534. # stub-prime: "no"
  535. # stub-zone:
  536. # name: "example.org"
  537. # stub-host: ns.example.com.
  538. # You can now also dynamically create and delete stub-zone's using
  539. # unbound-control stub_add domain.com 1.2.3.4 5.6.7.8
  540. # unbound-control stub_remove domain.com 1.2.3.4 5.6.7.8
  541.  
  542. # Forward zones
  543. # Create entries like below, to make all queries for 'example.com' and
  544. # 'example.org' go to the given list of servers. These servers have to handle
  545. # recursion to other nameservers. List zero or more nameservers by hostname
  546. # or by ipaddress. Use an entry with name "." to forward all queries.
  547. # If you enable forward-first, it attempts without the forward if it fails.
  548. # forward-zone:
  549. # name: "example.com"
  550. # forward-addr: 192.0.2.68
  551. # forward-addr: 192.0.2.73@5355 # forward to port 5355.
  552. # forward-first: no
  553. # forward-zone:
  554. # name: "example.org"
  555. # forward-host: fwd.example.com
  556. #
  557. # You can now also dynamically create and delete forward-zone's using
  558. # unbound-control forward_add domain.com 1.2.3.4 5.6.7.8
  559. # unbound-control forward_remove domain.com 1.2.3.4 5.6.7.8
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