1238106Sdes# 2238106Sdes# Example configuration file. 3238106Sdes# 4369939Sgit2svn# See unbound.conf(5) man page, version 1.13.1. 5238106Sdes# 6238106Sdes# this is a comment. 7238106Sdes 8366095Scy# Use this anywhere in the file to include other text into this file. 9238106Sdes#include: "otherfile.conf" 10238106Sdes 11366095Scy# Use this anywhere in the file to include other text, that explicitly starts a 12366095Scy# clause, into this file. Text after this directive needs to start a clause. 13366095Scy#include-toplevel: "otherfile.conf" 14366095Scy 15292206Sdes# The server clause sets the main parameters. 16238106Sdesserver: 17238106Sdes # whitespace is not necessary, but looks cleaner. 18238106Sdes 19238106Sdes # verbosity number, 0 is least verbose. 1 is default. 20238106Sdes verbosity: 1 21238106Sdes 22238106Sdes # print statistics to the log (for every thread) every N seconds. 23238106Sdes # Set to "" or 0 to disable. Default is disabled. 24238106Sdes # statistics-interval: 0 25238106Sdes 26356345Scy # enable shm for stats, default no. if you enable also enable 27356345Scy # statistics-interval, every time it also writes stats to the 28356345Scy # shared memory segment keyed with shm-key. 29356345Scy # shm-enable: no 30356345Scy 31356345Scy # shm for stats uses this key, and key+1 for the shared mem segment. 32356345Scy # shm-key: 11777 33356345Scy 34238106Sdes # enable cumulative statistics, without clearing them after printing. 35238106Sdes # statistics-cumulative: no 36238106Sdes 37238106Sdes # enable extended statistics (query types, answer codes, status) 38238106Sdes # printed from unbound-control. default off, because of speed. 39238106Sdes # extended-statistics: no 40238106Sdes 41238106Sdes # number of threads to create. 1 disables threading. 42238106Sdes # num-threads: 1 43238106Sdes 44238106Sdes # specify the interfaces to answer queries from by ip-address. 45238106Sdes # The default is to listen to localhost (127.0.0.1 and ::1). 46238106Sdes # specify 0.0.0.0 and ::0 to bind to all available interfaces. 47238106Sdes # specify every interface[@port] on a new 'interface:' labelled line. 48238106Sdes # The listen interfaces are not changed on reload, only on restart. 49238106Sdes # interface: 192.0.2.153 50238106Sdes # interface: 192.0.2.154 51238106Sdes # interface: 192.0.2.154@5003 52238106Sdes # interface: 2001:DB8::5 53238106Sdes 54238106Sdes # enable this feature to copy the source address of queries to reply. 55292206Sdes # Socket options are not supported on all platforms. experimental. 56238106Sdes # interface-automatic: no 57238106Sdes 58238106Sdes # port to answer queries from 59238106Sdes # port: 53 60238106Sdes 61238106Sdes # specify the interfaces to send outgoing queries to authoritative 62238106Sdes # server from by ip-address. If none, the default (all) interface 63238106Sdes # is used. Specify every interface on a 'outgoing-interface:' line. 64238106Sdes # outgoing-interface: 192.0.2.153 65238106Sdes # outgoing-interface: 2001:DB8::5 66238106Sdes # outgoing-interface: 2001:DB8::6 67356345Scy 68307729Sdes # Specify a netblock to use remainder 64 bits as random bits for 69307729Sdes # upstream queries. Uses freebind option (Linux). 70307729Sdes # outgoing-interface: 2001:DB8::/64 71307729Sdes # Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo 72307729Sdes # And: ip -6 route add local 2001:db8::/64 dev lo 73307729Sdes # And set prefer-ip6: yes to use the ip6 randomness from a netblock. 74307729Sdes # Set this to yes to prefer ipv6 upstream servers over ipv4. 75307729Sdes # prefer-ip6: no 76238106Sdes 77366095Scy # Prefer ipv4 upstream servers, even if ipv6 is available. 78366095Scy # prefer-ip4: no 79366095Scy 80238106Sdes # number of ports to allocate per thread, determines the size of the 81238106Sdes # port range that can be open simultaneously. About double the 82238106Sdes # num-queries-per-thread, or, use as many as the OS will allow you. 83238106Sdes # outgoing-range: 4096 84238106Sdes 85238106Sdes # permit unbound to use this port number or port range for 86238106Sdes # making outgoing queries, using an outgoing interface. 87238106Sdes # outgoing-port-permit: 32768 88238106Sdes 89238106Sdes # deny unbound the use this of port number or port range for 90238106Sdes # making outgoing queries, using an outgoing interface. 91238106Sdes # Use this to make sure unbound does not grab a UDP port that some 92238106Sdes # other server on this computer needs. The default is to avoid 93238106Sdes # IANA-assigned port numbers. 94249141Sdes # If multiple outgoing-port-permit and outgoing-port-avoid options 95249141Sdes # are present, they are processed in order. 96238106Sdes # outgoing-port-avoid: "3200-3208" 97238106Sdes 98238106Sdes # number of outgoing simultaneous tcp buffers to hold per thread. 99238106Sdes # outgoing-num-tcp: 10 100238106Sdes 101238106Sdes # number of incoming simultaneous tcp buffers to hold per thread. 102238106Sdes # incoming-num-tcp: 10 103238106Sdes 104238106Sdes # buffer size for UDP port 53 incoming (SO_RCVBUF socket option). 105238106Sdes # 0 is system default. Use 4m to catch query spikes for busy servers. 106238106Sdes # so-rcvbuf: 0 107238106Sdes 108238106Sdes # buffer size for UDP port 53 outgoing (SO_SNDBUF socket option). 109238106Sdes # 0 is system default. Use 4m to handle spikes on very busy servers. 110238106Sdes # so-sndbuf: 0 111292206Sdes 112276605Sdes # use SO_REUSEPORT to distribute queries over threads. 113356345Scy # at extreme load it could be better to turn it off to distribute even. 114356345Scy # so-reuseport: yes 115292206Sdes 116287917Sdes # use IP_TRANSPARENT so the interface: addresses can be non-local 117287917Sdes # and you can config non-existing IPs that are going to work later on 118296415Sdes # (uses IP_BINDANY on FreeBSD). 119287917Sdes # ip-transparent: no 120238106Sdes 121307729Sdes # use IP_FREEBIND so the interface: addresses can be non-local 122307729Sdes # and you can bind to nonexisting IPs and interfaces that are down. 123307729Sdes # Linux only. On Linux you also have ip-transparent that is similar. 124307729Sdes # ip-freebind: no 125307729Sdes 126366095Scy # the value of the Differentiated Services Codepoint (DSCP) 127366095Scy # in the differentiated services field (DS) of the outgoing 128366095Scy # IP packets 129366095Scy # ip-dscp: 0 130366095Scy 131238106Sdes # EDNS reassembly buffer to advertise to UDP peers (the actual buffer 132368129Scy # is set with msg-buffer-size). 133368129Scy # edns-buffer-size: 1232 134238106Sdes 135266114Sdes # Maximum UDP response size (not applied to TCP response). 136266114Sdes # Suggested values are 512 to 4096. Default is 4096. 65536 disables it. 137266114Sdes # max-udp-size: 4096 138266114Sdes 139356345Scy # max memory to use for stream(tcp and tls) waiting result buffers. 140356345Scy # stream-wait-size: 4m 141356345Scy 142238106Sdes # buffer size for handling DNS data. No messages larger than this 143238106Sdes # size can be sent or received, by UDP or TCP. In bytes. 144238106Sdes # msg-buffer-size: 65552 145238106Sdes 146238106Sdes # the amount of memory to use for the message cache. 147292206Sdes # plain value in bytes or you can append k, m or G. default is "4Mb". 148238106Sdes # msg-cache-size: 4m 149238106Sdes 150238106Sdes # the number of slabs to use for the message cache. 151238106Sdes # the number of slabs must be a power of 2. 152238106Sdes # more slabs reduce lock contention, but fragment memory usage. 153238106Sdes # msg-cache-slabs: 4 154238106Sdes 155238106Sdes # the number of queries that a thread gets to service. 156238106Sdes # num-queries-per-thread: 1024 157238106Sdes 158238106Sdes # if very busy, 50% queries run to completion, 50% get timeout in msec 159238106Sdes # jostle-timeout: 200 160292206Sdes 161266114Sdes # msec to wait before close of port on timeout UDP. 0 disables. 162266114Sdes # delay-close: 0 163238106Sdes 164368693Scy # perform connect for UDP sockets to mitigate ICMP side channel. 165368693Scy # udp-connect: yes 166368693Scy 167356345Scy # msec for waiting for an unknown server to reply. Increase if you 168356345Scy # are behind a slow satellite link, to eg. 1128. 169356345Scy # unknown-server-time-limit: 376 170356345Scy 171238106Sdes # the amount of memory to use for the RRset cache. 172292206Sdes # plain value in bytes or you can append k, m or G. default is "4Mb". 173238106Sdes # rrset-cache-size: 4m 174238106Sdes 175238106Sdes # the number of slabs to use for the RRset cache. 176238106Sdes # the number of slabs must be a power of 2. 177238106Sdes # more slabs reduce lock contention, but fragment memory usage. 178238106Sdes # rrset-cache-slabs: 4 179238106Sdes 180238106Sdes # the time to live (TTL) value lower bound, in seconds. Default 0. 181238106Sdes # If more than an hour could easily give trouble due to stale data. 182238106Sdes # cache-min-ttl: 0 183238106Sdes 184238106Sdes # the time to live (TTL) value cap for RRsets and messages in the 185238106Sdes # cache. Items are not cached for longer. In seconds. 186238106Sdes # cache-max-ttl: 86400 187238106Sdes 188287917Sdes # the time to live (TTL) value cap for negative responses in the cache 189287917Sdes # cache-max-negative-ttl: 3600 190287917Sdes 191238106Sdes # the time to live (TTL) value for cached roundtrip times, lameness and 192238106Sdes # EDNS version information for hosts. In seconds. 193238106Sdes # infra-host-ttl: 900 194292206Sdes 195282089Sdes # minimum wait time for responses, increase if uplink is long. In msec. 196282089Sdes # infra-cache-min-rtt: 50 197238106Sdes 198368693Scy # enable to make server probe down hosts more frequently. 199368693Scy # infra-keep-probing: no 200368693Scy 201238106Sdes # the number of slabs to use for the Infrastructure cache. 202238106Sdes # the number of slabs must be a power of 2. 203238106Sdes # more slabs reduce lock contention, but fragment memory usage. 204238106Sdes # infra-cache-slabs: 4 205238106Sdes 206238106Sdes # the maximum number of hosts that are cached (roundtrip, EDNS, lame). 207238106Sdes # infra-cache-numhosts: 10000 208356345Scy 209307729Sdes # define a number of tags here, use with local-zone, access-control. 210307729Sdes # repeat the define-tag statement to add additional tags. 211307729Sdes # define-tag: "tag1 tag2 tag3" 212238106Sdes 213238106Sdes # Enable IPv4, "yes" or "no". 214238106Sdes # do-ip4: yes 215238106Sdes 216238106Sdes # Enable IPv6, "yes" or "no". 217238106Sdes # do-ip6: yes 218238106Sdes 219238106Sdes # Enable UDP, "yes" or "no". 220238106Sdes # do-udp: yes 221238106Sdes 222238106Sdes # Enable TCP, "yes" or "no". 223238106Sdes # do-tcp: yes 224238106Sdes 225238106Sdes # upstream connections use TCP only (and no UDP), "yes" or "no" 226238106Sdes # useful for tunneling scenarios, default no. 227238106Sdes # tcp-upstream: no 228238106Sdes 229356345Scy # upstream connections also use UDP (even if do-udp is no). 230356345Scy # useful if if you want UDP upstream, but don't provide UDP downstream. 231356345Scy # udp-upstream-without-downstream: no 232356345Scy 233296415Sdes # Maximum segment size (MSS) of TCP socket on which the server 234296415Sdes # responds to queries. Default is 0, system default MSS. 235296415Sdes # tcp-mss: 0 236296415Sdes 237296415Sdes # Maximum segment size (MSS) of TCP socket for outgoing queries. 238296415Sdes # Default is 0, system default MSS. 239296415Sdes # outgoing-tcp-mss: 0 240296415Sdes 241356345Scy # Idle TCP timeout, connection closed in milliseconds 242356345Scy # tcp-idle-timeout: 30000 243356345Scy 244356345Scy # Enable EDNS TCP keepalive option. 245356345Scy # edns-tcp-keepalive: no 246356345Scy 247356345Scy # Timeout for EDNS TCP keepalive, in msec. 248356345Scy # edns-tcp-keepalive-timeout: 120000 249356345Scy 250356345Scy # Use systemd socket activation for UDP, TCP, and control sockets. 251356345Scy # use-systemd: no 252356345Scy 253238106Sdes # Detach from the terminal, run in background, "yes" or "no". 254356345Scy # Set the value to "no" when unbound runs as systemd service. 255238106Sdes # do-daemonize: yes 256238106Sdes 257238106Sdes # control which clients are allowed to make (recursive) queries 258238106Sdes # to this server. Specify classless netblocks with /size and action. 259238106Sdes # By default everything is refused, except for localhost. 260238106Sdes # Choose deny (drop message), refuse (polite error reply), 261356345Scy # allow (recursive ok), allow_setrd (recursive ok, rd bit is forced on), 262356345Scy # allow_snoop (recursive and nonrecursive ok) 263266114Sdes # deny_non_local (drop queries unless can be answered from local-data) 264266114Sdes # refuse_non_local (like deny_non_local but polite error reply). 265238106Sdes # access-control: 0.0.0.0/0 refuse 266238106Sdes # access-control: 127.0.0.0/8 allow 267238106Sdes # access-control: ::0/0 refuse 268238106Sdes # access-control: ::1 allow 269238106Sdes # access-control: ::ffff:127.0.0.1 allow 270238106Sdes 271307729Sdes # tag access-control with list of tags (in "" with spaces between) 272307729Sdes # Clients using this access control element use localzones that 273307729Sdes # are tagged with one of these tags. 274307729Sdes # access-control-tag: 192.0.2.0/24 "tag2 tag3" 275307729Sdes 276307729Sdes # set action for particular tag for given access control element 277307729Sdes # if you have multiple tag values, the tag used to lookup the action 278307729Sdes # is the first tag match between access-control-tag and local-zone-tag 279307729Sdes # where "first" comes from the order of the define-tag values. 280307729Sdes # access-control-tag-action: 192.0.2.0/24 tag3 refuse 281307729Sdes 282307729Sdes # set redirect data for particular tag for access control element 283307729Sdes # access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1" 284307729Sdes 285356345Scy # Set view for access control element 286356345Scy # access-control-view: 192.0.2.0/24 viewname 287356345Scy 288238106Sdes # if given, a chroot(2) is done to the given directory. 289238106Sdes # i.e. you can chroot to the working directory, for example, 290238106Sdes # for extra security, but make sure all files are in that directory. 291238106Sdes # 292238106Sdes # If chroot is enabled, you should pass the configfile (from the 293238106Sdes # commandline) as a full path from the original root. After the 294292206Sdes # chroot has been performed the now defunct portion of the config 295292206Sdes # file path is removed to be able to reread the config after a reload. 296238106Sdes # 297238106Sdes # All other file paths (working dir, logfile, roothints, and 298238106Sdes # key files) can be specified in several ways: 299238106Sdes # o as an absolute path relative to the new root. 300238106Sdes # o as a relative path to the working directory. 301238106Sdes # o as an absolute path relative to the original root. 302238106Sdes # In the last case the path is adjusted to remove the unused portion. 303238106Sdes # 304292206Sdes # The pid file can be absolute and outside of the chroot, it is 305238106Sdes # written just prior to performing the chroot and dropping permissions. 306238106Sdes # 307356345Scy # Additionally, unbound may need to access /dev/urandom (for entropy). 308238106Sdes # How to do this is specific to your OS. 309238106Sdes # 310238106Sdes # If you give "" no chroot is performed. The path must not end in a /. 311238106Sdes # chroot: "@UNBOUND_CHROOT_DIR@" 312238106Sdes 313238106Sdes # if given, user privileges are dropped (after binding port), 314238106Sdes # and the given username is assumed. Default is user "unbound". 315238106Sdes # If you give "" no privileges are dropped. 316238106Sdes # username: "@UNBOUND_USERNAME@" 317238106Sdes 318292206Sdes # the working directory. The relative files in this config are 319238106Sdes # relative to this directory. If you give "" the working directory 320238106Sdes # is not changed. 321307729Sdes # If you give a server: directory: dir before include: file statements 322307729Sdes # then those includes can be relative to the working directory. 323238106Sdes # directory: "@UNBOUND_RUN_DIR@" 324238106Sdes 325292206Sdes # the log file, "" means log to stderr. 326238106Sdes # Use of this option sets use-syslog to "no". 327238106Sdes # logfile: "" 328238106Sdes 329292206Sdes # Log to syslog(3) if yes. The log facility LOG_DAEMON is used to 330356345Scy # log to. If yes, it overrides the logfile. 331292206Sdes # use-syslog: yes 332238106Sdes 333356345Scy # Log identity to report. if empty, defaults to the name of argv[0] 334356345Scy # (usually "unbound"). 335356345Scy # log-identity: "" 336356345Scy 337238106Sdes # print UTC timestamp in ascii to logfile, default is epoch in seconds. 338238106Sdes # log-time-ascii: no 339292206Sdes 340238106Sdes # print one line with time, IP, name, type, class for every query. 341238106Sdes # log-queries: no 342238106Sdes 343356345Scy # print one line per reply, with time, IP, name, type, class, rcode, 344356345Scy # timetoresolve, fromcache and responsesize. 345356345Scy # log-replies: no 346356345Scy 347356345Scy # log with tag 'query' and 'reply' instead of 'info' for 348356345Scy # filtering log-queries and log-replies from the log. 349356345Scy # log-tag-queryreply: no 350356345Scy 351356345Scy # log the local-zone actions, like local-zone type inform is enabled 352356345Scy # also for the other local zone types. 353356345Scy # log-local-actions: no 354356345Scy 355356345Scy # print log lines that say why queries return SERVFAIL to clients. 356356345Scy # log-servfail: no 357356345Scy 358238106Sdes # the pid file. Can be an absolute path outside of chroot/work dir. 359238106Sdes # pidfile: "@UNBOUND_PIDFILE@" 360238106Sdes 361238106Sdes # file to read root hints from. 362292206Sdes # get one from https://www.internic.net/domain/named.cache 363238106Sdes # root-hints: "" 364238106Sdes 365238106Sdes # enable to not answer id.server and hostname.bind queries. 366238106Sdes # hide-identity: no 367238106Sdes 368238106Sdes # enable to not answer version.server and version.bind queries. 369238106Sdes # hide-version: no 370238106Sdes 371356345Scy # enable to not answer trustanchor.unbound queries. 372356345Scy # hide-trustanchor: no 373356345Scy 374238106Sdes # the identity to report. Leave "" or default to return hostname. 375238106Sdes # identity: "" 376238106Sdes 377238106Sdes # the version to report. Leave "" or default to return package version. 378238106Sdes # version: "" 379238106Sdes 380369939Sgit2svn # NSID identity (hex string, or "ascii_somestring"). default disabled. 381369939Sgit2svn # nsid: "aabbccdd" 382369939Sgit2svn 383238106Sdes # the target fetch policy. 384292206Sdes # series of integers describing the policy per dependency depth. 385292206Sdes # The number of values in the list determines the maximum dependency 386238106Sdes # depth the recursor will pursue before giving up. Each integer means: 387238106Sdes # -1 : fetch all targets opportunistically, 388238106Sdes # 0: fetch on demand, 389238106Sdes # positive value: fetch that many targets opportunistically. 390238106Sdes # Enclose the list of numbers between quotes (""). 391238106Sdes # target-fetch-policy: "3 2 1 0 0" 392238106Sdes 393292206Sdes # Harden against very small EDNS buffer sizes. 394369939Sgit2svn # harden-short-bufsize: yes 395238106Sdes 396238106Sdes # Harden against unseemly large queries. 397238106Sdes # harden-large-queries: no 398238106Sdes 399292206Sdes # Harden against out of zone rrsets, to avoid spoofing attempts. 400238106Sdes # harden-glue: yes 401238106Sdes 402238106Sdes # Harden against receiving dnssec-stripped data. If you turn it 403292206Sdes # off, failing to validate dnskey data for a trustanchor will 404238106Sdes # trigger insecure mode for that zone (like without a trustanchor). 405238106Sdes # Default on, which insists on dnssec data for trust-anchored zones. 406238106Sdes # harden-dnssec-stripped: yes 407238106Sdes 408238106Sdes # Harden against queries that fall under dnssec-signed nxdomain names. 409356345Scy # harden-below-nxdomain: yes 410238106Sdes 411356345Scy # Harden the referral path by performing additional queries for 412238106Sdes # infrastructure data. Validates the replies (if possible). 413292206Sdes # Default off, because the lookups burden the server. Experimental 414238106Sdes # implementation of draft-wijngaards-dnsext-resolver-side-mitigation. 415238106Sdes # harden-referral-path: no 416238106Sdes 417287917Sdes # Harden against algorithm downgrade when multiple algorithms are 418287917Sdes # advertised in the DS record. If no, allows the weakest algorithm 419287917Sdes # to validate the zone. 420289063Sdes # harden-algo-downgrade: no 421287917Sdes 422292206Sdes # Sent minimum amount of information to upstream servers to enhance 423292206Sdes # privacy. Only sent minimum required labels of the QNAME and set QTYPE 424356345Scy # to A when possible. 425356345Scy # qname-minimisation: yes 426292206Sdes 427356345Scy # QNAME minimisation in strict mode. Do not fall-back to sending full 428356345Scy # QNAME to potentially broken nameservers. A lot of domains will not be 429356345Scy # resolvable when this option in enabled. 430356345Scy # This option only has effect when qname-minimisation is enabled. 431356345Scy # qname-minimisation-strict: no 432356345Scy 433356345Scy # Aggressive NSEC uses the DNSSEC NSEC chain to synthesize NXDOMAIN 434356345Scy # and other denials, using information from previous NXDOMAINs answers. 435356345Scy # aggressive-nsec: no 436356345Scy 437238106Sdes # Use 0x20-encoded random bits in the query to foil spoof attempts. 438238106Sdes # This feature is an experimental implementation of draft dns-0x20. 439238106Sdes # use-caps-for-id: no 440292206Sdes 441287917Sdes # Domains (and domains in them) without support for dns-0x20 and 442287917Sdes # the fallback fails because they keep sending different answers. 443368129Scy # caps-exempt: "licdn.com" 444368129Scy # caps-exempt: "senderbase.org" 445238106Sdes 446292206Sdes # Enforce privacy of these addresses. Strips them away from answers. 447292206Sdes # It may cause DNSSEC validation to additionally mark it as bogus. 448292206Sdes # Protects against 'DNS Rebinding' (uses browser as network proxy). 449292206Sdes # Only 'private-domain' and 'local-data' names are allowed to have 450238106Sdes # these private addresses. No default. 451238106Sdes # private-address: 10.0.0.0/8 452238106Sdes # private-address: 172.16.0.0/12 453238106Sdes # private-address: 192.168.0.0/16 454238106Sdes # private-address: 169.254.0.0/16 455238106Sdes # private-address: fd00::/8 456238106Sdes # private-address: fe80::/10 457292206Sdes # private-address: ::ffff:0:0/96 458238106Sdes 459238106Sdes # Allow the domain (and its subdomains) to contain private addresses. 460238106Sdes # local-data statements are allowed to contain private addresses too. 461238106Sdes # private-domain: "example.com" 462238106Sdes 463238106Sdes # If nonzero, unwanted replies are not only reported in statistics, 464238106Sdes # but also a running total is kept per thread. If it reaches the 465238106Sdes # threshold, a warning is printed and a defensive action is taken, 466238106Sdes # the cache is cleared to flush potential poison out of it. 467238106Sdes # A suggested value is 10000000, the default is 0 (turned off). 468238106Sdes # unwanted-reply-threshold: 0 469238106Sdes 470238106Sdes # Do not query the following addresses. No DNS queries are sent there. 471238106Sdes # List one address per entry. List classless netblocks with /size, 472238106Sdes # do-not-query-address: 127.0.0.1/8 473238106Sdes # do-not-query-address: ::1 474238106Sdes 475238106Sdes # if yes, the above default do-not-query-address entries are present. 476238106Sdes # if no, localhost can be queried (for testing and debugging). 477238106Sdes # do-not-query-localhost: yes 478238106Sdes 479238106Sdes # if yes, perform prefetching of almost expired message cache entries. 480238106Sdes # prefetch: no 481238106Sdes 482238106Sdes # if yes, perform key lookups adjacent to normal lookups. 483238106Sdes # prefetch-key: no 484238106Sdes 485356345Scy # deny queries of type ANY with an empty response. 486356345Scy # deny-any: no 487356345Scy 488238106Sdes # if yes, Unbound rotates RRSet order in response. 489366095Scy # rrset-roundrobin: yes 490238106Sdes 491238106Sdes # if yes, Unbound doesn't insert authority/additional sections 492238106Sdes # into response messages when those sections are not required. 493356345Scy # minimal-responses: yes 494238106Sdes 495307729Sdes # true to disable DNSSEC lameness check in iterator. 496307729Sdes # disable-dnssec-lame-check: no 497307729Sdes 498238106Sdes # module configuration of the server. A string with identifiers 499276605Sdes # separated by spaces. Syntax: "[dns64] [validator] iterator" 500356345Scy # most modules have to be listed at the beginning of the line, 501356345Scy # except cachedb(just before iterator), and python (at the beginning, 502356345Scy # or, just before the iterator). 503238106Sdes # module-config: "validator iterator" 504238106Sdes 505238106Sdes # File with trusted keys, kept uptodate using RFC5011 probes, 506238106Sdes # initial file like trust-anchor-file, then it stores metadata. 507238106Sdes # Use several entries, one per domain name, to track multiple zones. 508238106Sdes # 509238106Sdes # If you want to perform DNSSEC validation, run unbound-anchor before 510238106Sdes # you start unbound (i.e. in the system boot scripts). And enable: 511238106Sdes # Please note usage of unbound-anchor root anchor is at your own risk 512238106Sdes # and under the terms of our LICENSE (see that file in the source). 513238106Sdes # auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@" 514238106Sdes 515356345Scy # trust anchor signaling sends a RFC8145 key tag query after priming. 516356345Scy # trust-anchor-signaling: yes 517356345Scy 518356345Scy # Root key trust anchor sentinel (draft-ietf-dnsop-kskroll-sentinel) 519356345Scy # root-key-sentinel: yes 520356345Scy 521238106Sdes # File with trusted keys for validation. Specify more than one file 522238106Sdes # with several entries, one file per entry. 523238106Sdes # Zone file format, with DS and DNSKEY entries. 524238106Sdes # Note this gets out of date, use auto-trust-anchor-file please. 525238106Sdes # trust-anchor-file: "" 526292206Sdes 527238106Sdes # Trusted key for validation. DS or DNSKEY. specify the RR on a 528238106Sdes # single line, surrounded by "". TTL is ignored. class is IN default. 529238106Sdes # Note this gets out of date, use auto-trust-anchor-file please. 530238106Sdes # (These examples are from August 2007 and may not be valid anymore). 531238106Sdes # trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ==" 532238106Sdes # trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A" 533238106Sdes 534238106Sdes # File with trusted keys for validation. Specify more than one file 535238106Sdes # with several entries, one file per entry. Like trust-anchor-file 536292206Sdes # but has a different file format. Format is BIND-9 style format, 537238106Sdes # the trusted-keys { name flag proto algo "key"; }; clauses are read. 538238106Sdes # you need external update procedures to track changes in keys. 539238106Sdes # trusted-keys-file: "" 540238106Sdes 541238106Sdes # Ignore chain of trust. Domain is treated as insecure. 542238106Sdes # domain-insecure: "example.com" 543238106Sdes 544238106Sdes # Override the date for validation with a specific fixed date. 545238106Sdes # Do not set this unless you are debugging signature inception 546238106Sdes # and expiration. "" or "0" turns the feature off. -1 ignores date. 547238106Sdes # val-override-date: "" 548238106Sdes 549238106Sdes # The time to live for bogus data, rrsets and messages. This avoids 550238106Sdes # some of the revalidation, until the time interval expires. in secs. 551238106Sdes # val-bogus-ttl: 60 552238106Sdes 553238106Sdes # The signature inception and expiration dates are allowed to be off 554238106Sdes # by 10% of the signature lifetime (expir-incep) from our local clock. 555238106Sdes # This leeway is capped with a minimum and a maximum. In seconds. 556238106Sdes # val-sig-skew-min: 3600 557238106Sdes # val-sig-skew-max: 86400 558238106Sdes 559238106Sdes # Should additional section of secure message also be kept clean of 560238106Sdes # unsecure data. Useful to shield the users of this validator from 561292206Sdes # potential bogus data in the additional section. All unsigned data 562238106Sdes # in the additional section is removed from secure messages. 563238106Sdes # val-clean-additional: yes 564238106Sdes 565238106Sdes # Turn permissive mode on to permit bogus messages. Thus, messages 566238106Sdes # for which security checks failed will be returned to clients, 567238106Sdes # instead of SERVFAIL. It still performs the security checks, which 568238106Sdes # result in interesting log files and possibly the AD bit in 569238106Sdes # replies if the message is found secure. The default is off. 570238106Sdes # val-permissive-mode: no 571238106Sdes 572238106Sdes # Ignore the CD flag in incoming queries and refuse them bogus data. 573238106Sdes # Enable it if the only clients of unbound are legacy servers (w2008) 574238106Sdes # that set CD but cannot validate themselves. 575238106Sdes # ignore-cd-flag: no 576238106Sdes 577361435Scy # Serve expired responses from cache, with serve-expired-reply-ttl in 578361435Scy # the response, and then attempt to fetch the data afresh. 579356345Scy # serve-expired: no 580356345Scy # 581356345Scy # Limit serving of expired responses to configured seconds after 582356345Scy # expiration. 0 disables the limit. 583356345Scy # serve-expired-ttl: 0 584356345Scy # 585356345Scy # Set the TTL of expired records to the serve-expired-ttl value after a 586356345Scy # failed attempt to retrieve the record from upstream. This makes sure 587356345Scy # that the expired records will be served as long as there are queries 588356345Scy # for it. 589356345Scy # serve-expired-ttl-reset: no 590361435Scy # 591361435Scy # TTL value to use when replying with expired data. 592361435Scy # serve-expired-reply-ttl: 30 593361435Scy # 594361435Scy # Time in milliseconds before replying to the client with expired data. 595361435Scy # This essentially enables the serve-stale behavior as specified in 596368129Scy # RFC 8767 that first tries to resolve before 597361435Scy # immediately responding with expired data. 0 disables this behavior. 598361435Scy # A recommended value is 1800. 599361435Scy # serve-expired-client-timeout: 0 600356345Scy 601369939Sgit2svn # Return the original TTL as received from the upstream name server rather 602369939Sgit2svn # than the decrementing TTL as stored in the cache. Enabling this feature 603369939Sgit2svn # does not impact cache expiry, it only changes the TTL unbound embeds in 604369939Sgit2svn # responses to queries. Note that enabling this feature implicitly disables 605369939Sgit2svn # enforcement of the configured minimum and maximum TTL. 606369939Sgit2svn # serve-original-ttl: no 607369939Sgit2svn 608238106Sdes # Have the validator log failed validations for your diagnosis. 609238106Sdes # 0: off. 1: A line per failed user query. 2: With reason and bad IP. 610238106Sdes # val-log-level: 0 611238106Sdes 612238106Sdes # It is possible to configure NSEC3 maximum iteration counts per 613238106Sdes # keysize. Keep this table very short, as linear search is done. 614238106Sdes # A message with an NSEC3 with larger count is marked insecure. 615238106Sdes # List in ascending order the keysize and count values. 616238106Sdes # val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500" 617292206Sdes 618238106Sdes # instruct the auto-trust-anchor-file probing to add anchors after ttl. 619238106Sdes # add-holddown: 2592000 # 30 days 620238106Sdes 621238106Sdes # instruct the auto-trust-anchor-file probing to del anchors after ttl. 622238106Sdes # del-holddown: 2592000 # 30 days 623238106Sdes 624238106Sdes # auto-trust-anchor-file probing removes missing anchors after ttl. 625238106Sdes # If the value 0 is given, missing anchors are not removed. 626238106Sdes # keep-missing: 31622400 # 366 days 627238106Sdes 628307729Sdes # debug option that allows very small holddown times for key rollover, 629307729Sdes # otherwise the RFC mandates probe intervals must be at least 1 hour. 630289063Sdes # permit-small-holddown: no 631289063Sdes 632238106Sdes # the amount of memory to use for the key cache. 633292206Sdes # plain value in bytes or you can append k, m or G. default is "4Mb". 634238106Sdes # key-cache-size: 4m 635238106Sdes 636238106Sdes # the number of slabs to use for the key cache. 637238106Sdes # the number of slabs must be a power of 2. 638238106Sdes # more slabs reduce lock contention, but fragment memory usage. 639238106Sdes # key-cache-slabs: 4 640238106Sdes 641368129Scy # the amount of memory to use for the negative cache. 642292206Sdes # plain value in bytes or you can append k, m or G. default is "1Mb". 643238106Sdes # neg-cache-size: 1m 644282089Sdes 645266114Sdes # By default, for a number of zones a small default 'nothing here' 646266114Sdes # reply is built-in. Query traffic is thus blocked. If you 647266114Sdes # wish to serve such zone you can unblock them by uncommenting one 648266114Sdes # of the nodefault statements below. 649266114Sdes # You may also have to use domain-insecure: zone to make DNSSEC work, 650266114Sdes # unless you have your own trust anchors for this zone. 651266114Sdes # local-zone: "localhost." nodefault 652266114Sdes # local-zone: "127.in-addr.arpa." nodefault 653266114Sdes # 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 654296415Sdes # local-zone: "onion." nodefault 655356345Scy # local-zone: "test." nodefault 656356345Scy # local-zone: "invalid." nodefault 657266114Sdes # local-zone: "10.in-addr.arpa." nodefault 658266114Sdes # local-zone: "16.172.in-addr.arpa." nodefault 659266114Sdes # local-zone: "17.172.in-addr.arpa." nodefault 660266114Sdes # local-zone: "18.172.in-addr.arpa." nodefault 661266114Sdes # local-zone: "19.172.in-addr.arpa." nodefault 662266114Sdes # local-zone: "20.172.in-addr.arpa." nodefault 663266114Sdes # local-zone: "21.172.in-addr.arpa." nodefault 664266114Sdes # local-zone: "22.172.in-addr.arpa." nodefault 665266114Sdes # local-zone: "23.172.in-addr.arpa." nodefault 666266114Sdes # local-zone: "24.172.in-addr.arpa." nodefault 667266114Sdes # local-zone: "25.172.in-addr.arpa." nodefault 668266114Sdes # local-zone: "26.172.in-addr.arpa." nodefault 669266114Sdes # local-zone: "27.172.in-addr.arpa." nodefault 670266114Sdes # local-zone: "28.172.in-addr.arpa." nodefault 671266114Sdes # local-zone: "29.172.in-addr.arpa." nodefault 672266114Sdes # local-zone: "30.172.in-addr.arpa." nodefault 673266114Sdes # local-zone: "31.172.in-addr.arpa." nodefault 674266114Sdes # local-zone: "168.192.in-addr.arpa." nodefault 675266114Sdes # local-zone: "0.in-addr.arpa." nodefault 676266114Sdes # local-zone: "254.169.in-addr.arpa." nodefault 677266114Sdes # local-zone: "2.0.192.in-addr.arpa." nodefault 678266114Sdes # local-zone: "100.51.198.in-addr.arpa." nodefault 679266114Sdes # local-zone: "113.0.203.in-addr.arpa." nodefault 680266114Sdes # local-zone: "255.255.255.255.in-addr.arpa." nodefault 681266114Sdes # 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 682266114Sdes # local-zone: "d.f.ip6.arpa." nodefault 683266114Sdes # local-zone: "8.e.f.ip6.arpa." nodefault 684266114Sdes # local-zone: "9.e.f.ip6.arpa." nodefault 685266114Sdes # local-zone: "a.e.f.ip6.arpa." nodefault 686266114Sdes # local-zone: "b.e.f.ip6.arpa." nodefault 687266114Sdes # local-zone: "8.b.d.0.1.0.0.2.ip6.arpa." nodefault 688276605Sdes # And for 64.100.in-addr.arpa. to 127.100.in-addr.arpa. 689292206Sdes 690356345Scy # Add example.com into ipset 691356345Scy # local-zone: "example.com" ipset 692356345Scy 693295535Sdes # If unbound is running service for the local host then it is useful 694276605Sdes # to perform lan-wide lookups to the upstream, and unblock the 695276605Sdes # long list of local-zones above. If this unbound is a dns server 696276605Sdes # for a network of computers, disabled is better and stops information 697276605Sdes # leakage of local lan information. 698276605Sdes # unblock-lan-zones: no 699266114Sdes 700295535Sdes # The insecure-lan-zones option disables validation for 701295535Sdes # these zones, as if they were all listed as domain-insecure. 702295535Sdes # insecure-lan-zones: no 703295535Sdes 704238106Sdes # a number of locally served zones can be configured. 705238106Sdes # local-zone: <zone> <type> 706238106Sdes # local-data: "<resource record string>" 707292206Sdes # o deny serves local data (if any), else, drops queries. 708238106Sdes # o refuse serves local data (if any), else, replies with error. 709238106Sdes # o static serves local data, else, nxdomain or nodata answer. 710238106Sdes # o transparent gives local data, but resolves normally for other names 711238106Sdes # o redirect serves the zone data for any subdomain in the zone. 712238106Sdes # o nodefault can be used to normally resolve AS112 zones. 713238106Sdes # o typetransparent resolves normally for other types and other names 714356345Scy # o inform acts like transparent, but logs client IP address 715287917Sdes # o inform_deny drops queries and logs client IP address 716356345Scy # o inform_redirect redirects queries and logs client IP address 717369939Sgit2svn # o always_transparent, always_refuse, always_nxdomain, always_nodata, 718369939Sgit2svn # always_deny resolve in that way but ignore local data for 719369939Sgit2svn # that name 720369939Sgit2svn # o always_null returns 0.0.0.0 or ::0 for any name in the zone. 721356345Scy # o noview breaks out of that view towards global local-zones. 722238106Sdes # 723238106Sdes # defaults are localhost address, reverse for 127.0.0.1 and ::1 724238106Sdes # and nxdomain for AS112 zones. If you configure one of these zones 725238106Sdes # the default content is omitted, or you can omit it with 'nodefault'. 726292206Sdes # 727238106Sdes # If you configure local-data without specifying local-zone, by 728238106Sdes # default a transparent local-zone is created for the data. 729238106Sdes # 730238106Sdes # You can add locally served data with 731238106Sdes # local-zone: "local." static 732238106Sdes # local-data: "mycomputer.local. IN A 192.0.2.51" 733238106Sdes # local-data: 'mytext.local TXT "content of text record"' 734238106Sdes # 735238106Sdes # You can override certain queries with 736238106Sdes # local-data: "adserver.example.com A 127.0.0.1" 737238106Sdes # 738238106Sdes # You can redirect a domain to a fixed address with 739238106Sdes # (this makes example.com, www.example.com, etc, all go to 192.0.2.3) 740238106Sdes # local-zone: "example.com" redirect 741238106Sdes # local-data: "example.com A 192.0.2.3" 742238106Sdes # 743238106Sdes # Shorthand to make PTR records, "IPv4 name" or "IPv6 name". 744238106Sdes # You can also add PTR records using local-data directly, but then 745238106Sdes # you need to do the reverse notation yourself. 746238106Sdes # local-data-ptr: "192.0.2.3 www.example.com" 747238106Sdes 748307729Sdes # tag a localzone with a list of tag names (in "" with spaces between) 749307729Sdes # local-zone-tag: "example.com" "tag2 tag3" 750307729Sdes 751307729Sdes # add a netblock specific override to a localzone, with zone type 752307729Sdes # local-zone-override: "example.com" 192.0.2.0/24 refuse 753307729Sdes 754368129Scy # service clients over TLS (on the TCP sockets) with plain DNS inside 755368129Scy # the TLS stream, and over HTTPS using HTTP/2 as specified in RFC8484. 756368129Scy # Give the certificate to use and private key. 757238106Sdes # default is "" (disabled). requires restart to take effect. 758356345Scy # tls-service-key: "path/to/privatekeyfile.key" 759356345Scy # tls-service-pem: "path/to/publiccertfile.pem" 760356345Scy # tls-port: 853 761368129Scy # https-port: 443 762238106Sdes 763356345Scy # cipher setting for TLSv1.2 764356345Scy # 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" 765356345Scy # cipher setting for TLSv1.3 766356345Scy # 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" 767356345Scy 768369939Sgit2svn # Pad responses to padded queries received over TLS 769369939Sgit2svn # pad-responses: yes 770369939Sgit2svn 771369939Sgit2svn # Padded responses will be padded to the closest multiple of this size. 772369939Sgit2svn # pad-responses-block-size: 468 773369939Sgit2svn 774366095Scy # Use the SNI extension for TLS connections. Default is yes. 775366095Scy # Changing the value requires a reload. 776366095Scy # tls-use-sni: yes 777366095Scy 778356345Scy # Add the secret file for TLS Session Ticket. 779356345Scy # Secret file must be 80 bytes of random data. 780356345Scy # First key use to encrypt and decrypt TLS session tickets. 781356345Scy # Other keys use to decrypt only. 782356345Scy # requires restart to take effect. 783356345Scy # tls-session-ticket-keys: "path/to/secret_file1" 784356345Scy # tls-session-ticket-keys: "path/to/secret_file2" 785356345Scy 786356345Scy # request upstream over TLS (with plain DNS inside the TLS stream). 787238106Sdes # Default is no. Can be turned on and off with unbound-control. 788356345Scy # tls-upstream: no 789238106Sdes 790356345Scy # Certificates used to authenticate connections made upstream. 791356345Scy # tls-cert-bundle: "" 792356345Scy 793356345Scy # Add system certs to the cert bundle, from the Windows Cert Store 794356345Scy # tls-win-cert: no 795356345Scy 796369939Sgit2svn # Pad queries over TLS upstreams 797369939Sgit2svn # pad-queries: yes 798369939Sgit2svn 799369939Sgit2svn # Padded queries will be padded to the closest multiple of this size. 800369939Sgit2svn # pad-queries-block-size: 128 801369939Sgit2svn 802356345Scy # Also serve tls on these port numbers (eg. 443, ...), by listing 803356345Scy # tls-additional-port: portno for each of the port numbers. 804356345Scy 805368129Scy # HTTP endpoint to provide DNS-over-HTTPS service on. 806368129Scy # http-endpoint: "/dns-query" 807368129Scy 808368129Scy # HTTP/2 SETTINGS_MAX_CONCURRENT_STREAMS value to use. 809368129Scy # http-max-streams: 100 810368129Scy 811368129Scy # Maximum number of bytes used for all HTTP/2 query buffers. 812368129Scy # http-query-buffer-size: 4m 813368129Scy 814368129Scy # Maximum number of bytes used for all HTTP/2 response buffers. 815368129Scy # http-response-buffer-size: 4m 816368129Scy 817368129Scy # Set TCP_NODELAY socket option on sockets used for DNS-over-HTTPS 818368129Scy # service. 819368129Scy # http-nodelay: yes 820368129Scy 821368693Scy # Disable TLS for DNS-over-HTTP downstream service. 822368693Scy # http-notls-downstream: no 823368693Scy 824276605Sdes # DNS64 prefix. Must be specified when DNS64 is use. 825276605Sdes # Enable dns64 in module-config. Used to synthesize IPv6 from IPv4. 826276605Sdes # dns64-prefix: 64:ff9b::0/96 827276605Sdes 828356345Scy # DNS64 ignore AAAA records for these domains and use A instead. 829356345Scy # dns64-ignore-aaaa: "example.com" 830356345Scy 831287917Sdes # ratelimit for uncached, new queries, this limits recursion effort. 832287917Sdes # ratelimiting is experimental, and may help against randomqueryflood. 833287917Sdes # if 0(default) it is disabled, otherwise state qps allowed per zone. 834287917Sdes # ratelimit: 0 835287917Sdes 836287917Sdes # ratelimits are tracked in a cache, size in bytes of cache (or k,m). 837287917Sdes # ratelimit-size: 4m 838287917Sdes # ratelimit cache slabs, reduces lock contention if equal to cpucount. 839287917Sdes # ratelimit-slabs: 4 840292206Sdes 841287917Sdes # 0 blocks when ratelimited, otherwise let 1/xth traffic through 842287917Sdes # ratelimit-factor: 10 843287917Sdes 844287917Sdes # override the ratelimit for a specific domain name. 845287917Sdes # give this setting multiple times to have multiple overrides. 846287917Sdes # ratelimit-for-domain: example.com 1000 847287917Sdes # override the ratelimits for all domains below a domain name 848287917Sdes # can give this multiple times, the name closest to the zone is used. 849307729Sdes # ratelimit-below-domain: com 1000 850287917Sdes 851356345Scy # global query ratelimit for all ip addresses. 852356345Scy # feature is experimental. 853356345Scy # if 0(default) it is disabled, otherwise states qps allowed per ip address 854356345Scy # ip-ratelimit: 0 855356345Scy 856356345Scy # ip ratelimits are tracked in a cache, size in bytes of cache (or k,m). 857356345Scy # ip-ratelimit-size: 4m 858356345Scy # ip ratelimit cache slabs, reduces lock contention if equal to cpucount. 859356345Scy # ip-ratelimit-slabs: 4 860356345Scy 861356345Scy # 0 blocks when ip is ratelimited, otherwise let 1/xth traffic through 862356345Scy # ip-ratelimit-factor: 10 863356345Scy 864356345Scy # Limit the number of connections simultaneous from a netblock 865356345Scy # tcp-connection-limit: 192.0.2.0/24 12 866356345Scy 867356345Scy # select from the fastest servers this many times out of 1000. 0 means 868356345Scy # the fast server select is disabled. prefetches are not sped up. 869356345Scy # fast-server-permil: 0 870356345Scy # the number of servers that will be used in the fast server selection. 871356345Scy # fast-server-num: 3 872356345Scy 873356345Scy # Specific options for ipsecmod. unbound needs to be configured with 874356345Scy # --enable-ipsecmod for these to take effect. 875356345Scy # 876356345Scy # Enable or disable ipsecmod (it still needs to be defined in 877356345Scy # module-config above). Can be used when ipsecmod needs to be 878356345Scy # enabled/disabled via remote-control(below). 879356345Scy # ipsecmod-enabled: yes 880356345Scy # 881356345Scy # Path to executable external hook. It must be defined when ipsecmod is 882356345Scy # listed in module-config (above). 883356345Scy # ipsecmod-hook: "./my_executable" 884356345Scy # 885356345Scy # When enabled unbound will reply with SERVFAIL if the return value of 886356345Scy # the ipsecmod-hook is not 0. 887356345Scy # ipsecmod-strict: no 888356345Scy # 889356345Scy # Maximum time to live (TTL) for cached A/AAAA records with IPSECKEY. 890356345Scy # ipsecmod-max-ttl: 3600 891356345Scy # 892356345Scy # Reply with A/AAAA even if the relevant IPSECKEY is bogus. Mainly used for 893356345Scy # testing. 894356345Scy # ipsecmod-ignore-bogus: no 895356345Scy # 896356345Scy # Domains for which ipsecmod will be triggered. If not defined (default) 897368129Scy # all domains are treated as being allowed. 898368129Scy # ipsecmod-allow: "example.com" 899368129Scy # ipsecmod-allow: "nlnetlabs.nl" 900356345Scy 901356345Scy 902238106Sdes# Python config section. To enable: 903238106Sdes# o use --with-pythonmodule to configure before compiling. 904238106Sdes# o list python in the module-config string (above) to enable. 905356345Scy# It can be at the start, it gets validated results, or just before 906356345Scy# the iterator and process before DNSSEC validation. 907238106Sdes# o and give a python-script to run. 908238106Sdespython: 909238106Sdes # Script file to load 910238106Sdes # python-script: "@UNBOUND_SHARE_DIR@/ubmodule-tst.py" 911238106Sdes 912366095Scy# Dynamic library config section. To enable: 913366095Scy# o use --with-dynlibmodule to configure before compiling. 914366095Scy# o list dynlib in the module-config string (above) to enable. 915366095Scy# It can be placed anywhere, the dynlib module is only a very thin wrapper 916366095Scy# to load modules dynamically. 917366095Scy# o and give a dynlib-file to run. If more than one dynlib entry is listed in 918366095Scy# the module-config then you need one dynlib-file per instance. 919366095Scydynlib: 920366095Scy # Script file to load 921366095Scy # dynlib-file: "@UNBOUND_SHARE_DIR@/dynlib.so" 922366095Scy 923292206Sdes# Remote control config section. 924238106Sdesremote-control: 925238106Sdes # Enable remote control with unbound-control(8) here. 926238106Sdes # set up the keys and certificates with unbound-control-setup. 927238106Sdes # control-enable: no 928238106Sdes 929238106Sdes # what interfaces are listened to for remote control. 930238106Sdes # give 0.0.0.0 and ::0 to listen to all interfaces. 931356345Scy # set to an absolute path to use a unix local name pipe, certificates 932356345Scy # are not used for that, so key and cert files need not be present. 933238106Sdes # control-interface: 127.0.0.1 934238106Sdes # control-interface: ::1 935238106Sdes 936238106Sdes # port number for remote control operations. 937238106Sdes # control-port: 8953 938238106Sdes 939356345Scy # for localhost, you can disable use of TLS by setting this to "no" 940356345Scy # For local sockets this option is ignored, and TLS is not used. 941356345Scy # control-use-cert: "yes" 942356345Scy 943238106Sdes # unbound server key file. 944238106Sdes # server-key-file: "@UNBOUND_RUN_DIR@/unbound_server.key" 945238106Sdes 946238106Sdes # unbound server certificate file. 947238106Sdes # server-cert-file: "@UNBOUND_RUN_DIR@/unbound_server.pem" 948238106Sdes 949238106Sdes # unbound-control key file. 950238106Sdes # control-key-file: "@UNBOUND_RUN_DIR@/unbound_control.key" 951238106Sdes 952238106Sdes # unbound-control certificate file. 953238106Sdes # control-cert-file: "@UNBOUND_RUN_DIR@/unbound_control.pem" 954238106Sdes 955238106Sdes# Stub zones. 956292206Sdes# Create entries like below, to make all queries for 'example.com' and 957292206Sdes# 'example.org' go to the given list of nameservers. list zero or more 958292206Sdes# nameservers by hostname or by ipaddress. If you set stub-prime to yes, 959238106Sdes# the list is treated as priming hints (default is no). 960238106Sdes# With stub-first yes, it attempts without the stub if it fails. 961289063Sdes# Consider adding domain-insecure: name and local-zone: name nodefault 962289063Sdes# to the server: section if the stub is a locally served zone. 963238106Sdes# stub-zone: 964238106Sdes# name: "example.com" 965238106Sdes# stub-addr: 192.0.2.68 966238106Sdes# stub-prime: no 967238106Sdes# stub-first: no 968356345Scy# stub-tls-upstream: no 969356345Scy# stub-no-cache: no 970238106Sdes# stub-zone: 971238106Sdes# name: "example.org" 972238106Sdes# stub-host: ns.example.com. 973238106Sdes 974238106Sdes# Forward zones 975238106Sdes# Create entries like below, to make all queries for 'example.com' and 976238106Sdes# 'example.org' go to the given list of servers. These servers have to handle 977238106Sdes# recursion to other nameservers. List zero or more nameservers by hostname 978238106Sdes# or by ipaddress. Use an entry with name "." to forward all queries. 979238106Sdes# If you enable forward-first, it attempts without the forward if it fails. 980238106Sdes# forward-zone: 981238106Sdes# name: "example.com" 982238106Sdes# forward-addr: 192.0.2.68 983238106Sdes# forward-addr: 192.0.2.73@5355 # forward to port 5355. 984238106Sdes# forward-first: no 985356345Scy# forward-tls-upstream: no 986356345Scy# forward-no-cache: no 987238106Sdes# forward-zone: 988238106Sdes# name: "example.org" 989238106Sdes# forward-host: fwd.example.com 990356345Scy 991356345Scy# Authority zones 992356345Scy# The data for these zones is kept locally, from a file or downloaded. 993356345Scy# The data can be served to downstream clients, or used instead of the 994356345Scy# upstream (which saves a lookup to the upstream). The first example 995356345Scy# has a copy of the root for local usage. The second serves example.org 996356345Scy# authoritatively. zonefile: reads from file (and writes to it if you also 997368129Scy# download it), primary: fetches with AXFR and IXFR, or url to zonefile. 998368129Scy# With allow-notify: you can give additional (apart from primaries) sources of 999356345Scy# notifies. 1000356345Scy# auth-zone: 1001356345Scy# name: "." 1002368129Scy# primary: 199.9.14.201 # b.root-servers.net 1003368129Scy# primary: 192.33.4.12 # c.root-servers.net 1004368129Scy# primary: 199.7.91.13 # d.root-servers.net 1005368129Scy# primary: 192.5.5.241 # f.root-servers.net 1006368129Scy# primary: 192.112.36.4 # g.root-servers.net 1007368129Scy# primary: 193.0.14.129 # k.root-servers.net 1008368129Scy# primary: 192.0.47.132 # xfr.cjr.dns.icann.org 1009368129Scy# primary: 192.0.32.132 # xfr.lax.dns.icann.org 1010368129Scy# primary: 2001:500:200::b # b.root-servers.net 1011368129Scy# primary: 2001:500:2::c # c.root-servers.net 1012368129Scy# primary: 2001:500:2d::d # d.root-servers.net 1013368129Scy# primary: 2001:500:2f::f # f.root-servers.net 1014368129Scy# primary: 2001:500:12::d0d # g.root-servers.net 1015368129Scy# primary: 2001:7fd::1 # k.root-servers.net 1016368129Scy# primary: 2620:0:2830:202::132 # xfr.cjr.dns.icann.org 1017368129Scy# primary: 2620:0:2d0:202::132 # xfr.lax.dns.icann.org 1018356345Scy# fallback-enabled: yes 1019356345Scy# for-downstream: no 1020356345Scy# for-upstream: yes 1021356345Scy# auth-zone: 1022356345Scy# name: "example.org" 1023356345Scy# for-downstream: yes 1024356345Scy# for-upstream: yes 1025356345Scy# zonefile: "example.org.zone" 1026356345Scy 1027356345Scy# Views 1028356345Scy# Create named views. Name must be unique. Map views to requests using 1029356345Scy# the access-control-view option. Views can contain zero or more local-zone 1030356345Scy# and local-data options. Options from matching views will override global 1031356345Scy# options. Global options will be used if no matching view is found. 1032356345Scy# With view-first yes, it will try to answer using the global local-zone and 1033356345Scy# local-data elements if there is no view specific match. 1034356345Scy# view: 1035356345Scy# name: "viewname" 1036356345Scy# local-zone: "example.com" redirect 1037356345Scy# local-data: "example.com A 192.0.2.3" 1038356345Scy# local-data-ptr: "192.0.2.3 www.example.com" 1039356345Scy# view-first: no 1040356345Scy# view: 1041356345Scy# name: "anotherview" 1042356345Scy# local-zone: "example.com" refuse 1043356345Scy 1044356345Scy# DNSCrypt 1045356345Scy# Caveats: 1046356345Scy# 1. the keys/certs cannot be produced by unbound. You can use dnscrypt-wrapper 1047356345Scy# for this: https://github.com/cofyc/dnscrypt-wrapper/blob/master/README.md#usage 1048356345Scy# 2. dnscrypt channel attaches to an interface. you MUST set interfaces to 1049356345Scy# listen on `dnscrypt-port` with the follo0wing snippet: 1050356345Scy# server: 1051356345Scy# interface: 0.0.0.0@443 1052356345Scy# interface: ::0@443 1053356345Scy# 1054356345Scy# Finally, `dnscrypt` config has its own section. 1055356345Scy# dnscrypt: 1056356345Scy# dnscrypt-enable: yes 1057356345Scy# dnscrypt-port: 443 1058356345Scy# dnscrypt-provider: 2.dnscrypt-cert.example.com. 1059356345Scy# dnscrypt-secret-key: /path/unbound-conf/keys1/1.key 1060356345Scy# dnscrypt-secret-key: /path/unbound-conf/keys2/1.key 1061356345Scy# dnscrypt-provider-cert: /path/unbound-conf/keys1/1.cert 1062356345Scy# dnscrypt-provider-cert: /path/unbound-conf/keys2/1.cert 1063356345Scy 1064356345Scy# CacheDB 1065356345Scy# Enable external backend DB as auxiliary cache. Specify the backend name 1066356345Scy# (default is "testframe", which has no use other than for debugging and 1067356345Scy# testing) and backend-specific options. The 'cachedb' module must be 1068356345Scy# included in module-config, just before the iterator module. 1069356345Scy# cachedb: 1070356345Scy# backend: "testframe" 1071356345Scy# # secret seed string to calculate hashed keys 1072356345Scy# secret-seed: "default" 1073356345Scy# 1074356345Scy# # For "redis" backend: 1075356345Scy# # redis server's IP address or host name 1076356345Scy# redis-server-host: 127.0.0.1 1077356345Scy# # redis server's TCP port 1078356345Scy# redis-server-port: 6379 1079356345Scy# # timeout (in ms) for communication with the redis server 1080356345Scy# redis-timeout: 100 1081366095Scy# # set timeout on redis records based on DNS response TTL 1082366095Scy# redis-expire-records: no 1083356345Scy 1084356345Scy# IPSet 1085356345Scy# Add specify domain into set via ipset. 1086366095Scy# Note: To enable ipset unbound needs to run as root user. 1087356345Scy# ipset: 1088356345Scy# # set name for ip v4 addresses 1089356345Scy# name-v4: "list-v4" 1090356345Scy# # set name for ip v6 addresses 1091356345Scy# name-v6: "list-v6" 1092356345Scy# 1093356345Scy 1094366095Scy# Dnstap logging support, if compiled in. To enable, set the dnstap-enable 1095366095Scy# to yes and also some of dnstap-log-..-messages to yes. And select an 1096366095Scy# upstream log destination, by socket path, TCP or TLS destination. 1097366095Scy# dnstap: 1098366095Scy# dnstap-enable: no 1099366095Scy# # if set to yes frame streams will be used in bidirectional mode 1100366095Scy# dnstap-bidirectional: yes 1101366095Scy# dnstap-socket-path: "@DNSTAP_SOCKET_PATH@" 1102366095Scy# # if "" use the unix socket in dnstap-socket-path, otherwise, 1103366095Scy# # set it to "IPaddress[@port]" of the destination. 1104366095Scy# dnstap-ip: "" 1105366095Scy# # if set to yes if you want to use TLS to dnstap-ip, no for TCP. 1106366095Scy# dnstap-tls: yes 1107366095Scy# # name for authenticating the upstream server. or "" disabled. 1108366095Scy# dnstap-tls-server-name: "" 1109366095Scy# # if "", it uses the cert bundle from the main unbound config. 1110366095Scy# dnstap-tls-cert-bundle: "" 1111366095Scy# # key file for client authentication, or "" disabled. 1112366095Scy# dnstap-tls-client-key-file: "" 1113366095Scy# # cert file for client authentication, or "" disabled. 1114366095Scy# dnstap-tls-client-cert-file: "" 1115366095Scy# dnstap-send-identity: no 1116366095Scy# dnstap-send-version: no 1117366095Scy# # if "" it uses the hostname. 1118366095Scy# dnstap-identity: "" 1119366095Scy# # if "" it uses the package version. 1120366095Scy# dnstap-version: "" 1121366095Scy# dnstap-log-resolver-query-messages: no 1122366095Scy# dnstap-log-resolver-response-messages: no 1123366095Scy# dnstap-log-client-query-messages: no 1124366095Scy# dnstap-log-client-response-messages: no 1125366095Scy# dnstap-log-forwarder-query-messages: no 1126366095Scy# dnstap-log-forwarder-response-messages: no 1127366095Scy 1128361435Scy# Response Policy Zones 1129361435Scy# RPZ policies. Applied in order of configuration. QNAME and Response IP 1130361435Scy# Address trigger are the only supported triggers. Supported actions are: 1131361435Scy# NXDOMAIN, NODATA, PASSTHRU, DROP and Local Data. Policies can be loaded from 1132361435Scy# file, using zone transfer, or using HTTP. The respip module needs to be added 1133361435Scy# to the module-config, e.g.: module-config: "respip validator iterator". 1134361435Scy# rpz: 1135361435Scy# name: "rpz.example.com" 1136361435Scy# zonefile: "rpz.example.com" 1137368129Scy# primary: 192.0.2.0 1138361435Scy# allow-notify: 192.0.2.0/32 1139361435Scy# url: http://www.example.com/rpz.example.org.zone 1140361435Scy# rpz-action-override: cname 1141361435Scy# rpz-cname-override: www.example.org 1142361435Scy# rpz-log: yes 1143361435Scy# rpz-log-name: "example policy" 1144361435Scy# tags: "example" 1145