1b7579f77SDag-Erling Smørgrav# 2b7579f77SDag-Erling Smørgrav# Example configuration file. 3b7579f77SDag-Erling Smørgrav# 4*e86b9096SDag-Erling Smørgrav# See unbound.conf(5) man page, version 1.9.2. 5b7579f77SDag-Erling Smørgrav# 6b7579f77SDag-Erling Smørgrav# this is a comment. 7b7579f77SDag-Erling Smørgrav 8b7579f77SDag-Erling Smørgrav#Use this to include other text into the file. 9b7579f77SDag-Erling Smørgrav#include: "otherfile.conf" 10b7579f77SDag-Erling Smørgrav 11b7579f77SDag-Erling Smørgrav# The server clause sets the main parameters. 12b7579f77SDag-Erling Smørgravserver: 13b7579f77SDag-Erling Smørgrav # whitespace is not necessary, but looks cleaner. 14b7579f77SDag-Erling Smørgrav 15b7579f77SDag-Erling Smørgrav # verbosity number, 0 is least verbose. 1 is default. 16b7579f77SDag-Erling Smørgrav verbosity: 1 17b7579f77SDag-Erling Smørgrav 18b7579f77SDag-Erling Smørgrav # print statistics to the log (for every thread) every N seconds. 19b7579f77SDag-Erling Smørgrav # Set to "" or 0 to disable. Default is disabled. 20b7579f77SDag-Erling Smørgrav # statistics-interval: 0 21b7579f77SDag-Erling Smørgrav 2265b390aaSDag-Erling Smørgrav # enable shm for stats, default no. if you enable also enable 2365b390aaSDag-Erling Smørgrav # statistics-interval, every time it also writes stats to the 2465b390aaSDag-Erling Smørgrav # shared memory segment keyed with shm-key. 2565b390aaSDag-Erling Smørgrav # shm-enable: no 2665b390aaSDag-Erling Smørgrav 2765b390aaSDag-Erling Smørgrav # shm for stats uses this key, and key+1 for the shared mem segment. 2865b390aaSDag-Erling Smørgrav # shm-key: 11777 2965b390aaSDag-Erling Smørgrav 30b7579f77SDag-Erling Smørgrav # enable cumulative statistics, without clearing them after printing. 31b7579f77SDag-Erling Smørgrav # statistics-cumulative: no 32b7579f77SDag-Erling Smørgrav 33b7579f77SDag-Erling Smørgrav # enable extended statistics (query types, answer codes, status) 34b7579f77SDag-Erling Smørgrav # printed from unbound-control. default off, because of speed. 35b7579f77SDag-Erling Smørgrav # extended-statistics: no 36b7579f77SDag-Erling Smørgrav 37b7579f77SDag-Erling Smørgrav # number of threads to create. 1 disables threading. 38b7579f77SDag-Erling Smørgrav # num-threads: 1 39b7579f77SDag-Erling Smørgrav 40b7579f77SDag-Erling Smørgrav # specify the interfaces to answer queries from by ip-address. 41b7579f77SDag-Erling Smørgrav # The default is to listen to localhost (127.0.0.1 and ::1). 42b7579f77SDag-Erling Smørgrav # specify 0.0.0.0 and ::0 to bind to all available interfaces. 43b7579f77SDag-Erling Smørgrav # specify every interface[@port] on a new 'interface:' labelled line. 44b7579f77SDag-Erling Smørgrav # The listen interfaces are not changed on reload, only on restart. 45b7579f77SDag-Erling Smørgrav # interface: 192.0.2.153 46b7579f77SDag-Erling Smørgrav # interface: 192.0.2.154 47b7579f77SDag-Erling Smørgrav # interface: 192.0.2.154@5003 48b7579f77SDag-Erling Smørgrav # interface: 2001:DB8::5 49b7579f77SDag-Erling Smørgrav 50b7579f77SDag-Erling Smørgrav # enable this feature to copy the source address of queries to reply. 51b7579f77SDag-Erling Smørgrav # Socket options are not supported on all platforms. experimental. 52b7579f77SDag-Erling Smørgrav # interface-automatic: no 53b7579f77SDag-Erling Smørgrav 54b7579f77SDag-Erling Smørgrav # port to answer queries from 55b7579f77SDag-Erling Smørgrav # port: 53 56b7579f77SDag-Erling Smørgrav 57b7579f77SDag-Erling Smørgrav # specify the interfaces to send outgoing queries to authoritative 58b7579f77SDag-Erling Smørgrav # server from by ip-address. If none, the default (all) interface 59b7579f77SDag-Erling Smørgrav # is used. Specify every interface on a 'outgoing-interface:' line. 60b7579f77SDag-Erling Smørgrav # outgoing-interface: 192.0.2.153 61b7579f77SDag-Erling Smørgrav # outgoing-interface: 2001:DB8::5 62b7579f77SDag-Erling Smørgrav # outgoing-interface: 2001:DB8::6 63b7579f77SDag-Erling Smørgrav 64b5663de9SDag-Erling Smørgrav # Specify a netblock to use remainder 64 bits as random bits for 65b5663de9SDag-Erling Smørgrav # upstream queries. Uses freebind option (Linux). 66b5663de9SDag-Erling Smørgrav # outgoing-interface: 2001:DB8::/64 67b5663de9SDag-Erling Smørgrav # Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo 68b5663de9SDag-Erling Smørgrav # And: ip -6 route add local 2001:db8::/64 dev lo 69b5663de9SDag-Erling Smørgrav # And set prefer-ip6: yes to use the ip6 randomness from a netblock. 70b5663de9SDag-Erling Smørgrav # Set this to yes to prefer ipv6 upstream servers over ipv4. 71b5663de9SDag-Erling Smørgrav # prefer-ip6: no 72b5663de9SDag-Erling Smørgrav 73b7579f77SDag-Erling Smørgrav # number of ports to allocate per thread, determines the size of the 74b7579f77SDag-Erling Smørgrav # port range that can be open simultaneously. About double the 75b7579f77SDag-Erling Smørgrav # num-queries-per-thread, or, use as many as the OS will allow you. 76b7579f77SDag-Erling Smørgrav # outgoing-range: 4096 77b7579f77SDag-Erling Smørgrav 78b7579f77SDag-Erling Smørgrav # permit unbound to use this port number or port range for 79b7579f77SDag-Erling Smørgrav # making outgoing queries, using an outgoing interface. 80b7579f77SDag-Erling Smørgrav # outgoing-port-permit: 32768 81b7579f77SDag-Erling Smørgrav 82b7579f77SDag-Erling Smørgrav # deny unbound the use this of port number or port range for 83b7579f77SDag-Erling Smørgrav # making outgoing queries, using an outgoing interface. 84b7579f77SDag-Erling Smørgrav # Use this to make sure unbound does not grab a UDP port that some 85b7579f77SDag-Erling Smørgrav # other server on this computer needs. The default is to avoid 86b7579f77SDag-Erling Smørgrav # IANA-assigned port numbers. 878ed2b524SDag-Erling Smørgrav # If multiple outgoing-port-permit and outgoing-port-avoid options 888ed2b524SDag-Erling Smørgrav # are present, they are processed in order. 89b7579f77SDag-Erling Smørgrav # outgoing-port-avoid: "3200-3208" 90b7579f77SDag-Erling Smørgrav 91b7579f77SDag-Erling Smørgrav # number of outgoing simultaneous tcp buffers to hold per thread. 92b7579f77SDag-Erling Smørgrav # outgoing-num-tcp: 10 93b7579f77SDag-Erling Smørgrav 94b7579f77SDag-Erling Smørgrav # number of incoming simultaneous tcp buffers to hold per thread. 95b7579f77SDag-Erling Smørgrav # incoming-num-tcp: 10 96b7579f77SDag-Erling Smørgrav 97b7579f77SDag-Erling Smørgrav # buffer size for UDP port 53 incoming (SO_RCVBUF socket option). 98b7579f77SDag-Erling Smørgrav # 0 is system default. Use 4m to catch query spikes for busy servers. 99b7579f77SDag-Erling Smørgrav # so-rcvbuf: 0 100b7579f77SDag-Erling Smørgrav 101b7579f77SDag-Erling Smørgrav # buffer size for UDP port 53 outgoing (SO_SNDBUF socket option). 102b7579f77SDag-Erling Smørgrav # 0 is system default. Use 4m to handle spikes on very busy servers. 103b7579f77SDag-Erling Smørgrav # so-sndbuf: 0 104b7579f77SDag-Erling Smørgrav 105ff825849SDag-Erling Smørgrav # use SO_REUSEPORT to distribute queries over threads. 106*e86b9096SDag-Erling Smørgrav # at extreme load it could be better to turn it off to distribute even. 1074c75e3aaSDag-Erling Smørgrav # so-reuseport: yes 10817d15b25SDag-Erling Smørgrav 10909a3aaf3SDag-Erling Smørgrav # use IP_TRANSPARENT so the interface: addresses can be non-local 11009a3aaf3SDag-Erling Smørgrav # and you can config non-existing IPs that are going to work later on 111f61ef7f6SDag-Erling Smørgrav # (uses IP_BINDANY on FreeBSD). 11209a3aaf3SDag-Erling Smørgrav # ip-transparent: no 11309a3aaf3SDag-Erling Smørgrav 114e2d15004SDag-Erling Smørgrav # use IP_FREEBIND so the interface: addresses can be non-local 115e2d15004SDag-Erling Smørgrav # and you can bind to nonexisting IPs and interfaces that are down. 116e2d15004SDag-Erling Smørgrav # Linux only. On Linux you also have ip-transparent that is similar. 117e2d15004SDag-Erling Smørgrav # ip-freebind: no 118e2d15004SDag-Erling Smørgrav 119b7579f77SDag-Erling Smørgrav # EDNS reassembly buffer to advertise to UDP peers (the actual buffer 120971980c3SDag-Erling Smørgrav # is set with msg-buffer-size). 1472 can solve fragmentation (timeouts) 121b7579f77SDag-Erling Smørgrav # edns-buffer-size: 4096 122b7579f77SDag-Erling Smørgrav 12317d15b25SDag-Erling Smørgrav # Maximum UDP response size (not applied to TCP response). 12417d15b25SDag-Erling Smørgrav # Suggested values are 512 to 4096. Default is 4096. 65536 disables it. 12517d15b25SDag-Erling Smørgrav # max-udp-size: 4096 12617d15b25SDag-Erling Smørgrav 127*e86b9096SDag-Erling Smørgrav # max memory to use for stream(tcp and tls) waiting result buffers. 128*e86b9096SDag-Erling Smørgrav # stream-wait-size: 4m 129*e86b9096SDag-Erling Smørgrav 130b7579f77SDag-Erling Smørgrav # buffer size for handling DNS data. No messages larger than this 131b7579f77SDag-Erling Smørgrav # size can be sent or received, by UDP or TCP. In bytes. 132b7579f77SDag-Erling Smørgrav # msg-buffer-size: 65552 133b7579f77SDag-Erling Smørgrav 134b7579f77SDag-Erling Smørgrav # the amount of memory to use for the message cache. 135b7579f77SDag-Erling Smørgrav # plain value in bytes or you can append k, m or G. default is "4Mb". 136b7579f77SDag-Erling Smørgrav # msg-cache-size: 4m 137b7579f77SDag-Erling Smørgrav 138b7579f77SDag-Erling Smørgrav # the number of slabs to use for the message cache. 139b7579f77SDag-Erling Smørgrav # the number of slabs must be a power of 2. 140b7579f77SDag-Erling Smørgrav # more slabs reduce lock contention, but fragment memory usage. 141b7579f77SDag-Erling Smørgrav # msg-cache-slabs: 4 142b7579f77SDag-Erling Smørgrav 143b7579f77SDag-Erling Smørgrav # the number of queries that a thread gets to service. 144b7579f77SDag-Erling Smørgrav # num-queries-per-thread: 1024 145b7579f77SDag-Erling Smørgrav 146b7579f77SDag-Erling Smørgrav # if very busy, 50% queries run to completion, 50% get timeout in msec 147b7579f77SDag-Erling Smørgrav # jostle-timeout: 200 148b7579f77SDag-Erling Smørgrav 14917d15b25SDag-Erling Smørgrav # msec to wait before close of port on timeout UDP. 0 disables. 15017d15b25SDag-Erling Smørgrav # delay-close: 0 15117d15b25SDag-Erling Smørgrav 152*e86b9096SDag-Erling Smørgrav # msec for waiting for an unknown server to reply. Increase if you 153*e86b9096SDag-Erling Smørgrav # are behind a slow satellite link, to eg. 1128. 154*e86b9096SDag-Erling Smørgrav # unknown-server-time-limit: 376 155*e86b9096SDag-Erling Smørgrav 156b7579f77SDag-Erling Smørgrav # the amount of memory to use for the RRset cache. 157b7579f77SDag-Erling Smørgrav # plain value in bytes or you can append k, m or G. default is "4Mb". 158b7579f77SDag-Erling Smørgrav # rrset-cache-size: 4m 159b7579f77SDag-Erling Smørgrav 160b7579f77SDag-Erling Smørgrav # the number of slabs to use for the RRset cache. 161b7579f77SDag-Erling Smørgrav # the number of slabs must be a power of 2. 162b7579f77SDag-Erling Smørgrav # more slabs reduce lock contention, but fragment memory usage. 163b7579f77SDag-Erling Smørgrav # rrset-cache-slabs: 4 164b7579f77SDag-Erling Smørgrav 165b7579f77SDag-Erling Smørgrav # the time to live (TTL) value lower bound, in seconds. Default 0. 166b7579f77SDag-Erling Smørgrav # If more than an hour could easily give trouble due to stale data. 167b7579f77SDag-Erling Smørgrav # cache-min-ttl: 0 168b7579f77SDag-Erling Smørgrav 169b7579f77SDag-Erling Smørgrav # the time to live (TTL) value cap for RRsets and messages in the 170b7579f77SDag-Erling Smørgrav # cache. Items are not cached for longer. In seconds. 171b7579f77SDag-Erling Smørgrav # cache-max-ttl: 86400 172b7579f77SDag-Erling Smørgrav 17309a3aaf3SDag-Erling Smørgrav # the time to live (TTL) value cap for negative responses in the cache 17409a3aaf3SDag-Erling Smørgrav # cache-max-negative-ttl: 3600 17509a3aaf3SDag-Erling Smørgrav 176b7579f77SDag-Erling Smørgrav # the time to live (TTL) value for cached roundtrip times, lameness and 177b7579f77SDag-Erling Smørgrav # EDNS version information for hosts. In seconds. 178b7579f77SDag-Erling Smørgrav # infra-host-ttl: 900 179b7579f77SDag-Erling Smørgrav 1806480faa8SDag-Erling Smørgrav # minimum wait time for responses, increase if uplink is long. In msec. 1816480faa8SDag-Erling Smørgrav # infra-cache-min-rtt: 50 1826480faa8SDag-Erling Smørgrav 183b7579f77SDag-Erling Smørgrav # the number of slabs to use for the Infrastructure cache. 184b7579f77SDag-Erling Smørgrav # the number of slabs must be a power of 2. 185b7579f77SDag-Erling Smørgrav # more slabs reduce lock contention, but fragment memory usage. 186b7579f77SDag-Erling Smørgrav # infra-cache-slabs: 4 187b7579f77SDag-Erling Smørgrav 188b7579f77SDag-Erling Smørgrav # the maximum number of hosts that are cached (roundtrip, EDNS, lame). 189b7579f77SDag-Erling Smørgrav # infra-cache-numhosts: 10000 190b7579f77SDag-Erling Smørgrav 191b5663de9SDag-Erling Smørgrav # define a number of tags here, use with local-zone, access-control. 192b5663de9SDag-Erling Smørgrav # repeat the define-tag statement to add additional tags. 193b5663de9SDag-Erling Smørgrav # define-tag: "tag1 tag2 tag3" 194b5663de9SDag-Erling Smørgrav 195b7579f77SDag-Erling Smørgrav # Enable IPv4, "yes" or "no". 196b7579f77SDag-Erling Smørgrav # do-ip4: yes 197b7579f77SDag-Erling Smørgrav 198b7579f77SDag-Erling Smørgrav # Enable IPv6, "yes" or "no". 199b7579f77SDag-Erling Smørgrav # do-ip6: yes 200b7579f77SDag-Erling Smørgrav 201b7579f77SDag-Erling Smørgrav # Enable UDP, "yes" or "no". 202b7579f77SDag-Erling Smørgrav # do-udp: yes 203b7579f77SDag-Erling Smørgrav 204b7579f77SDag-Erling Smørgrav # Enable TCP, "yes" or "no". 205b7579f77SDag-Erling Smørgrav # do-tcp: yes 206b7579f77SDag-Erling Smørgrav 207b7579f77SDag-Erling Smørgrav # upstream connections use TCP only (and no UDP), "yes" or "no" 208b7579f77SDag-Erling Smørgrav # useful for tunneling scenarios, default no. 209b7579f77SDag-Erling Smørgrav # tcp-upstream: no 210b7579f77SDag-Erling Smørgrav 2118a384985SDag-Erling Smørgrav # upstream connections also use UDP (even if do-udp is no). 2128a384985SDag-Erling Smørgrav # useful if if you want UDP upstream, but don't provide UDP downstream. 2138a384985SDag-Erling Smørgrav # udp-upstream-without-downstream: no 2148a384985SDag-Erling Smørgrav 215f61ef7f6SDag-Erling Smørgrav # Maximum segment size (MSS) of TCP socket on which the server 216f61ef7f6SDag-Erling Smørgrav # responds to queries. Default is 0, system default MSS. 217f61ef7f6SDag-Erling Smørgrav # tcp-mss: 0 218f61ef7f6SDag-Erling Smørgrav 219f61ef7f6SDag-Erling Smørgrav # Maximum segment size (MSS) of TCP socket for outgoing queries. 220f61ef7f6SDag-Erling Smørgrav # Default is 0, system default MSS. 221f61ef7f6SDag-Erling Smørgrav # outgoing-tcp-mss: 0 222f61ef7f6SDag-Erling Smørgrav 2234c75e3aaSDag-Erling Smørgrav # Idle TCP timeout, connection closed in milliseconds 2244c75e3aaSDag-Erling Smørgrav # tcp-idle-timeout: 30000 2254c75e3aaSDag-Erling Smørgrav 2264c75e3aaSDag-Erling Smørgrav # Enable EDNS TCP keepalive option. 2274c75e3aaSDag-Erling Smørgrav # edns-tcp-keepalive: no 2284c75e3aaSDag-Erling Smørgrav 2294c75e3aaSDag-Erling Smørgrav # Timeout for EDNS TCP keepalive, in msec. 2304c75e3aaSDag-Erling Smørgrav # edns-tcp-keepalive-timeout: 120000 2314c75e3aaSDag-Erling Smørgrav 2323005e0a3SDag-Erling Smørgrav # Use systemd socket activation for UDP, TCP, and control sockets. 2333005e0a3SDag-Erling Smørgrav # use-systemd: no 2343005e0a3SDag-Erling Smørgrav 235b7579f77SDag-Erling Smørgrav # Detach from the terminal, run in background, "yes" or "no". 2363005e0a3SDag-Erling Smørgrav # Set the value to "no" when unbound runs as systemd service. 237b7579f77SDag-Erling Smørgrav # do-daemonize: yes 238b7579f77SDag-Erling Smørgrav 239b7579f77SDag-Erling Smørgrav # control which clients are allowed to make (recursive) queries 240b7579f77SDag-Erling Smørgrav # to this server. Specify classless netblocks with /size and action. 241b7579f77SDag-Erling Smørgrav # By default everything is refused, except for localhost. 242b7579f77SDag-Erling Smørgrav # Choose deny (drop message), refuse (polite error reply), 2433bd4df0aSDag-Erling Smørgrav # allow (recursive ok), allow_setrd (recursive ok, rd bit is forced on), 2443bd4df0aSDag-Erling Smørgrav # allow_snoop (recursive and nonrecursive ok) 24517d15b25SDag-Erling Smørgrav # deny_non_local (drop queries unless can be answered from local-data) 24617d15b25SDag-Erling Smørgrav # refuse_non_local (like deny_non_local but polite error reply). 247b7579f77SDag-Erling Smørgrav # access-control: 0.0.0.0/0 refuse 248b7579f77SDag-Erling Smørgrav # access-control: 127.0.0.0/8 allow 249b7579f77SDag-Erling Smørgrav # access-control: ::0/0 refuse 250b7579f77SDag-Erling Smørgrav # access-control: ::1 allow 251b7579f77SDag-Erling Smørgrav # access-control: ::ffff:127.0.0.1 allow 252b7579f77SDag-Erling Smørgrav 253b5663de9SDag-Erling Smørgrav # tag access-control with list of tags (in "" with spaces between) 254b5663de9SDag-Erling Smørgrav # Clients using this access control element use localzones that 255b5663de9SDag-Erling Smørgrav # are tagged with one of these tags. 256b5663de9SDag-Erling Smørgrav # access-control-tag: 192.0.2.0/24 "tag2 tag3" 257b5663de9SDag-Erling Smørgrav 258b5663de9SDag-Erling Smørgrav # set action for particular tag for given access control element 259b5663de9SDag-Erling Smørgrav # if you have multiple tag values, the tag used to lookup the action 260b5663de9SDag-Erling Smørgrav # is the first tag match between access-control-tag and local-zone-tag 261b5663de9SDag-Erling Smørgrav # where "first" comes from the order of the define-tag values. 262b5663de9SDag-Erling Smørgrav # access-control-tag-action: 192.0.2.0/24 tag3 refuse 263b5663de9SDag-Erling Smørgrav 264b5663de9SDag-Erling Smørgrav # set redirect data for particular tag for access control element 265b5663de9SDag-Erling Smørgrav # access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1" 266b5663de9SDag-Erling Smørgrav 267bc892140SDag-Erling Smørgrav # Set view for access control element 268bc892140SDag-Erling Smørgrav # access-control-view: 192.0.2.0/24 viewname 269bc892140SDag-Erling Smørgrav 270b7579f77SDag-Erling Smørgrav # if given, a chroot(2) is done to the given directory. 271b7579f77SDag-Erling Smørgrav # i.e. you can chroot to the working directory, for example, 272b7579f77SDag-Erling Smørgrav # for extra security, but make sure all files are in that directory. 273b7579f77SDag-Erling Smørgrav # 274b7579f77SDag-Erling Smørgrav # If chroot is enabled, you should pass the configfile (from the 275b7579f77SDag-Erling Smørgrav # commandline) as a full path from the original root. After the 276b7579f77SDag-Erling Smørgrav # chroot has been performed the now defunct portion of the config 277b7579f77SDag-Erling Smørgrav # file path is removed to be able to reread the config after a reload. 278b7579f77SDag-Erling Smørgrav # 279b7579f77SDag-Erling Smørgrav # All other file paths (working dir, logfile, roothints, and 280b7579f77SDag-Erling Smørgrav # key files) can be specified in several ways: 281b7579f77SDag-Erling Smørgrav # o as an absolute path relative to the new root. 282b7579f77SDag-Erling Smørgrav # o as a relative path to the working directory. 283b7579f77SDag-Erling Smørgrav # o as an absolute path relative to the original root. 284b7579f77SDag-Erling Smørgrav # In the last case the path is adjusted to remove the unused portion. 285b7579f77SDag-Erling Smørgrav # 286b7579f77SDag-Erling Smørgrav # The pid file can be absolute and outside of the chroot, it is 287b7579f77SDag-Erling Smørgrav # written just prior to performing the chroot and dropping permissions. 288b7579f77SDag-Erling Smørgrav # 289b7579f77SDag-Erling Smørgrav # Additionally, unbound may need to access /dev/random (for entropy). 290b7579f77SDag-Erling Smørgrav # How to do this is specific to your OS. 291b7579f77SDag-Erling Smørgrav # 292b7579f77SDag-Erling Smørgrav # If you give "" no chroot is performed. The path must not end in a /. 293b7579f77SDag-Erling Smørgrav # chroot: "@UNBOUND_CHROOT_DIR@" 294b7579f77SDag-Erling Smørgrav 295b7579f77SDag-Erling Smørgrav # if given, user privileges are dropped (after binding port), 296b7579f77SDag-Erling Smørgrav # and the given username is assumed. Default is user "unbound". 297b7579f77SDag-Erling Smørgrav # If you give "" no privileges are dropped. 298b7579f77SDag-Erling Smørgrav # username: "@UNBOUND_USERNAME@" 299b7579f77SDag-Erling Smørgrav 300b7579f77SDag-Erling Smørgrav # the working directory. The relative files in this config are 301b7579f77SDag-Erling Smørgrav # relative to this directory. If you give "" the working directory 302b7579f77SDag-Erling Smørgrav # is not changed. 303b5663de9SDag-Erling Smørgrav # If you give a server: directory: dir before include: file statements 304b5663de9SDag-Erling Smørgrav # then those includes can be relative to the working directory. 305b7579f77SDag-Erling Smørgrav # directory: "@UNBOUND_RUN_DIR@" 306b7579f77SDag-Erling Smørgrav 307b7579f77SDag-Erling Smørgrav # the log file, "" means log to stderr. 308b7579f77SDag-Erling Smørgrav # Use of this option sets use-syslog to "no". 309b7579f77SDag-Erling Smørgrav # logfile: "" 310b7579f77SDag-Erling Smørgrav 311b7579f77SDag-Erling Smørgrav # Log to syslog(3) if yes. The log facility LOG_DAEMON is used to 312bc892140SDag-Erling Smørgrav # log to. If yes, it overrides the logfile. 313b7579f77SDag-Erling Smørgrav # use-syslog: yes 314b7579f77SDag-Erling Smørgrav 315bc892140SDag-Erling Smørgrav # Log identity to report. if empty, defaults to the name of argv[0] 316bc892140SDag-Erling Smørgrav # (usually "unbound"). 317bc892140SDag-Erling Smørgrav # log-identity: "" 318bc892140SDag-Erling Smørgrav 319b7579f77SDag-Erling Smørgrav # print UTC timestamp in ascii to logfile, default is epoch in seconds. 320b7579f77SDag-Erling Smørgrav # log-time-ascii: no 321b7579f77SDag-Erling Smørgrav 322b7579f77SDag-Erling Smørgrav # print one line with time, IP, name, type, class for every query. 323b7579f77SDag-Erling Smørgrav # log-queries: no 324b7579f77SDag-Erling Smørgrav 3253005e0a3SDag-Erling Smørgrav # print one line per reply, with time, IP, name, type, class, rcode, 3263005e0a3SDag-Erling Smørgrav # timetoresolve, fromcache and responsesize. 3273005e0a3SDag-Erling Smørgrav # log-replies: no 3283005e0a3SDag-Erling Smørgrav 329*e86b9096SDag-Erling Smørgrav # log with tag 'query' and 'reply' instead of 'info' for 330*e86b9096SDag-Erling Smørgrav # filtering log-queries and log-replies from the log. 331*e86b9096SDag-Erling Smørgrav # log-tag-queryreply: no 332*e86b9096SDag-Erling Smørgrav 3334c75e3aaSDag-Erling Smørgrav # log the local-zone actions, like local-zone type inform is enabled 3344c75e3aaSDag-Erling Smørgrav # also for the other local zone types. 3354c75e3aaSDag-Erling Smørgrav # log-local-actions: no 3364c75e3aaSDag-Erling Smørgrav 3374c75e3aaSDag-Erling Smørgrav # print log lines that say why queries return SERVFAIL to clients. 3384c75e3aaSDag-Erling Smørgrav # log-servfail: no 3394c75e3aaSDag-Erling Smørgrav 340b7579f77SDag-Erling Smørgrav # the pid file. Can be an absolute path outside of chroot/work dir. 341b7579f77SDag-Erling Smørgrav # pidfile: "@UNBOUND_PIDFILE@" 342b7579f77SDag-Erling Smørgrav 343b7579f77SDag-Erling Smørgrav # file to read root hints from. 34405ab2901SDag-Erling Smørgrav # get one from https://www.internic.net/domain/named.cache 345b7579f77SDag-Erling Smørgrav # root-hints: "" 346b7579f77SDag-Erling Smørgrav 347b7579f77SDag-Erling Smørgrav # enable to not answer id.server and hostname.bind queries. 348b7579f77SDag-Erling Smørgrav # hide-identity: no 349b7579f77SDag-Erling Smørgrav 350b7579f77SDag-Erling Smørgrav # enable to not answer version.server and version.bind queries. 351b7579f77SDag-Erling Smørgrav # hide-version: no 352b7579f77SDag-Erling Smørgrav 35365b390aaSDag-Erling Smørgrav # enable to not answer trustanchor.unbound queries. 35465b390aaSDag-Erling Smørgrav # hide-trustanchor: no 35565b390aaSDag-Erling Smørgrav 356b7579f77SDag-Erling Smørgrav # the identity to report. Leave "" or default to return hostname. 357b7579f77SDag-Erling Smørgrav # identity: "" 358b7579f77SDag-Erling Smørgrav 359b7579f77SDag-Erling Smørgrav # the version to report. Leave "" or default to return package version. 360b7579f77SDag-Erling Smørgrav # version: "" 361b7579f77SDag-Erling Smørgrav 362b7579f77SDag-Erling Smørgrav # the target fetch policy. 363b7579f77SDag-Erling Smørgrav # series of integers describing the policy per dependency depth. 364b7579f77SDag-Erling Smørgrav # The number of values in the list determines the maximum dependency 365b7579f77SDag-Erling Smørgrav # depth the recursor will pursue before giving up. Each integer means: 366b7579f77SDag-Erling Smørgrav # -1 : fetch all targets opportunistically, 367b7579f77SDag-Erling Smørgrav # 0: fetch on demand, 368b7579f77SDag-Erling Smørgrav # positive value: fetch that many targets opportunistically. 369b7579f77SDag-Erling Smørgrav # Enclose the list of numbers between quotes (""). 370b7579f77SDag-Erling Smørgrav # target-fetch-policy: "3 2 1 0 0" 371b7579f77SDag-Erling Smørgrav 372b7579f77SDag-Erling Smørgrav # Harden against very small EDNS buffer sizes. 373b7579f77SDag-Erling Smørgrav # harden-short-bufsize: no 374b7579f77SDag-Erling Smørgrav 375b7579f77SDag-Erling Smørgrav # Harden against unseemly large queries. 376b7579f77SDag-Erling Smørgrav # harden-large-queries: no 377b7579f77SDag-Erling Smørgrav 378b7579f77SDag-Erling Smørgrav # Harden against out of zone rrsets, to avoid spoofing attempts. 379b7579f77SDag-Erling Smørgrav # harden-glue: yes 380b7579f77SDag-Erling Smørgrav 381b7579f77SDag-Erling Smørgrav # Harden against receiving dnssec-stripped data. If you turn it 382b7579f77SDag-Erling Smørgrav # off, failing to validate dnskey data for a trustanchor will 383b7579f77SDag-Erling Smørgrav # trigger insecure mode for that zone (like without a trustanchor). 384b7579f77SDag-Erling Smørgrav # Default on, which insists on dnssec data for trust-anchored zones. 385b7579f77SDag-Erling Smørgrav # harden-dnssec-stripped: yes 386b7579f77SDag-Erling Smørgrav 387b7579f77SDag-Erling Smørgrav # Harden against queries that fall under dnssec-signed nxdomain names. 3884c75e3aaSDag-Erling Smørgrav # harden-below-nxdomain: yes 389b7579f77SDag-Erling Smørgrav 390b7579f77SDag-Erling Smørgrav # Harden the referral path by performing additional queries for 391b7579f77SDag-Erling Smørgrav # infrastructure data. Validates the replies (if possible). 392b7579f77SDag-Erling Smørgrav # Default off, because the lookups burden the server. Experimental 393b7579f77SDag-Erling Smørgrav # implementation of draft-wijngaards-dnsext-resolver-side-mitigation. 394b7579f77SDag-Erling Smørgrav # harden-referral-path: no 395b7579f77SDag-Erling Smørgrav 39609a3aaf3SDag-Erling Smørgrav # Harden against algorithm downgrade when multiple algorithms are 39709a3aaf3SDag-Erling Smørgrav # advertised in the DS record. If no, allows the weakest algorithm 39809a3aaf3SDag-Erling Smørgrav # to validate the zone. 399b75612f8SDag-Erling Smørgrav # harden-algo-downgrade: no 40009a3aaf3SDag-Erling Smørgrav 40105ab2901SDag-Erling Smørgrav # Sent minimum amount of information to upstream servers to enhance 40205ab2901SDag-Erling Smørgrav # privacy. Only sent minimum required labels of the QNAME and set QTYPE 40357bddd21SDag-Erling Smørgrav # to A when possible. 4043bd4df0aSDag-Erling Smørgrav # qname-minimisation: yes 40505ab2901SDag-Erling Smørgrav 406bc892140SDag-Erling Smørgrav # QNAME minimisation in strict mode. Do not fall-back to sending full 407bc892140SDag-Erling Smørgrav # QNAME to potentially broken nameservers. A lot of domains will not be 408bc892140SDag-Erling Smørgrav # resolvable when this option in enabled. 409bc892140SDag-Erling Smørgrav # This option only has effect when qname-minimisation is enabled. 410bc892140SDag-Erling Smørgrav # qname-minimisation-strict: no 411bc892140SDag-Erling Smørgrav 41257bddd21SDag-Erling Smørgrav # Aggressive NSEC uses the DNSSEC NSEC chain to synthesize NXDOMAIN 41357bddd21SDag-Erling Smørgrav # and other denials, using information from previous NXDOMAINs answers. 41457bddd21SDag-Erling Smørgrav # aggressive-nsec: no 41557bddd21SDag-Erling Smørgrav 416b7579f77SDag-Erling Smørgrav # Use 0x20-encoded random bits in the query to foil spoof attempts. 417b7579f77SDag-Erling Smørgrav # This feature is an experimental implementation of draft dns-0x20. 418b7579f77SDag-Erling Smørgrav # use-caps-for-id: no 419b7579f77SDag-Erling Smørgrav 42009a3aaf3SDag-Erling Smørgrav # Domains (and domains in them) without support for dns-0x20 and 42109a3aaf3SDag-Erling Smørgrav # the fallback fails because they keep sending different answers. 42209a3aaf3SDag-Erling Smørgrav # caps-whitelist: "licdn.com" 423b5663de9SDag-Erling Smørgrav # caps-whitelist: "senderbase.org" 42409a3aaf3SDag-Erling Smørgrav 425b7579f77SDag-Erling Smørgrav # Enforce privacy of these addresses. Strips them away from answers. 426b7579f77SDag-Erling Smørgrav # It may cause DNSSEC validation to additionally mark it as bogus. 427b7579f77SDag-Erling Smørgrav # Protects against 'DNS Rebinding' (uses browser as network proxy). 428b7579f77SDag-Erling Smørgrav # Only 'private-domain' and 'local-data' names are allowed to have 429b7579f77SDag-Erling Smørgrav # these private addresses. No default. 430b7579f77SDag-Erling Smørgrav # private-address: 10.0.0.0/8 431b7579f77SDag-Erling Smørgrav # private-address: 172.16.0.0/12 432b7579f77SDag-Erling Smørgrav # private-address: 192.168.0.0/16 433b7579f77SDag-Erling Smørgrav # private-address: 169.254.0.0/16 434b7579f77SDag-Erling Smørgrav # private-address: fd00::/8 435b7579f77SDag-Erling Smørgrav # private-address: fe80::/10 43605ab2901SDag-Erling Smørgrav # private-address: ::ffff:0:0/96 437b7579f77SDag-Erling Smørgrav 438b7579f77SDag-Erling Smørgrav # Allow the domain (and its subdomains) to contain private addresses. 439b7579f77SDag-Erling Smørgrav # local-data statements are allowed to contain private addresses too. 440b7579f77SDag-Erling Smørgrav # private-domain: "example.com" 441b7579f77SDag-Erling Smørgrav 442b7579f77SDag-Erling Smørgrav # If nonzero, unwanted replies are not only reported in statistics, 443b7579f77SDag-Erling Smørgrav # but also a running total is kept per thread. If it reaches the 444b7579f77SDag-Erling Smørgrav # threshold, a warning is printed and a defensive action is taken, 445b7579f77SDag-Erling Smørgrav # the cache is cleared to flush potential poison out of it. 446b7579f77SDag-Erling Smørgrav # A suggested value is 10000000, the default is 0 (turned off). 447b7579f77SDag-Erling Smørgrav # unwanted-reply-threshold: 0 448b7579f77SDag-Erling Smørgrav 449b7579f77SDag-Erling Smørgrav # Do not query the following addresses. No DNS queries are sent there. 450b7579f77SDag-Erling Smørgrav # List one address per entry. List classless netblocks with /size, 451b7579f77SDag-Erling Smørgrav # do-not-query-address: 127.0.0.1/8 452b7579f77SDag-Erling Smørgrav # do-not-query-address: ::1 453b7579f77SDag-Erling Smørgrav 454b7579f77SDag-Erling Smørgrav # if yes, the above default do-not-query-address entries are present. 455b7579f77SDag-Erling Smørgrav # if no, localhost can be queried (for testing and debugging). 456b7579f77SDag-Erling Smørgrav # do-not-query-localhost: yes 457b7579f77SDag-Erling Smørgrav 458b7579f77SDag-Erling Smørgrav # if yes, perform prefetching of almost expired message cache entries. 459b7579f77SDag-Erling Smørgrav # prefetch: no 460b7579f77SDag-Erling Smørgrav 461b7579f77SDag-Erling Smørgrav # if yes, perform key lookups adjacent to normal lookups. 462b7579f77SDag-Erling Smørgrav # prefetch-key: no 463b7579f77SDag-Erling Smørgrav 464*e86b9096SDag-Erling Smørgrav # deny queries of type ANY with an empty response. 465*e86b9096SDag-Erling Smørgrav # deny-any: no 466*e86b9096SDag-Erling Smørgrav 467b7579f77SDag-Erling Smørgrav # if yes, Unbound rotates RRSet order in response. 468b7579f77SDag-Erling Smørgrav # rrset-roundrobin: no 469b7579f77SDag-Erling Smørgrav 470b7579f77SDag-Erling Smørgrav # if yes, Unbound doesn't insert authority/additional sections 471b7579f77SDag-Erling Smørgrav # into response messages when those sections are not required. 4724c75e3aaSDag-Erling Smørgrav # minimal-responses: yes 473b7579f77SDag-Erling Smørgrav 474e2d15004SDag-Erling Smørgrav # true to disable DNSSEC lameness check in iterator. 475e2d15004SDag-Erling Smørgrav # disable-dnssec-lame-check: no 476e2d15004SDag-Erling Smørgrav 477b7579f77SDag-Erling Smørgrav # module configuration of the server. A string with identifiers 478ff825849SDag-Erling Smørgrav # separated by spaces. Syntax: "[dns64] [validator] iterator" 479*e86b9096SDag-Erling Smørgrav # most modules have to be listed at the beginning of the line, 480*e86b9096SDag-Erling Smørgrav # except cachedb(just before iterator), and python (at the beginning, 481*e86b9096SDag-Erling Smørgrav # or, just before the iterator). 482b7579f77SDag-Erling Smørgrav # module-config: "validator iterator" 483b7579f77SDag-Erling Smørgrav 484b7579f77SDag-Erling Smørgrav # File with trusted keys, kept uptodate using RFC5011 probes, 485b7579f77SDag-Erling Smørgrav # initial file like trust-anchor-file, then it stores metadata. 486b7579f77SDag-Erling Smørgrav # Use several entries, one per domain name, to track multiple zones. 487b7579f77SDag-Erling Smørgrav # 488b7579f77SDag-Erling Smørgrav # If you want to perform DNSSEC validation, run unbound-anchor before 489b7579f77SDag-Erling Smørgrav # you start unbound (i.e. in the system boot scripts). And enable: 490b7579f77SDag-Erling Smørgrav # Please note usage of unbound-anchor root anchor is at your own risk 491b7579f77SDag-Erling Smørgrav # and under the terms of our LICENSE (see that file in the source). 492b7579f77SDag-Erling Smørgrav # auto-trust-anchor-file: "@UNBOUND_ROOTKEY_FILE@" 493b7579f77SDag-Erling Smørgrav 494c7f4d7adSDag-Erling Smørgrav # trust anchor signaling sends a RFC8145 key tag query after priming. 4958a384985SDag-Erling Smørgrav # trust-anchor-signaling: yes 496c7f4d7adSDag-Erling Smørgrav 4970fb34990SDag-Erling Smørgrav # Root key trust anchor sentinel (draft-ietf-dnsop-kskroll-sentinel) 4980fb34990SDag-Erling Smørgrav # root-key-sentinel: yes 4990fb34990SDag-Erling Smørgrav 500b7579f77SDag-Erling Smørgrav # File with DLV trusted keys. Same format as trust-anchor-file. 501b7579f77SDag-Erling Smørgrav # There can be only one DLV configured, it is trusted from root down. 50209a3aaf3SDag-Erling Smørgrav # DLV is going to be decommissioned. Please do not use it any more. 503b7579f77SDag-Erling Smørgrav # dlv-anchor-file: "dlv.isc.org.key" 504b7579f77SDag-Erling Smørgrav 505b7579f77SDag-Erling Smørgrav # File with trusted keys for validation. Specify more than one file 506b7579f77SDag-Erling Smørgrav # with several entries, one file per entry. 507b7579f77SDag-Erling Smørgrav # Zone file format, with DS and DNSKEY entries. 508b7579f77SDag-Erling Smørgrav # Note this gets out of date, use auto-trust-anchor-file please. 509b7579f77SDag-Erling Smørgrav # trust-anchor-file: "" 510b7579f77SDag-Erling Smørgrav 511b7579f77SDag-Erling Smørgrav # Trusted key for validation. DS or DNSKEY. specify the RR on a 512b7579f77SDag-Erling Smørgrav # single line, surrounded by "". TTL is ignored. class is IN default. 513b7579f77SDag-Erling Smørgrav # Note this gets out of date, use auto-trust-anchor-file please. 514b7579f77SDag-Erling Smørgrav # (These examples are from August 2007 and may not be valid anymore). 515b7579f77SDag-Erling Smørgrav # trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ==" 516b7579f77SDag-Erling Smørgrav # trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A" 517b7579f77SDag-Erling Smørgrav 518b7579f77SDag-Erling Smørgrav # File with trusted keys for validation. Specify more than one file 519b7579f77SDag-Erling Smørgrav # with several entries, one file per entry. Like trust-anchor-file 520b7579f77SDag-Erling Smørgrav # but has a different file format. Format is BIND-9 style format, 521b7579f77SDag-Erling Smørgrav # the trusted-keys { name flag proto algo "key"; }; clauses are read. 522b7579f77SDag-Erling Smørgrav # you need external update procedures to track changes in keys. 523b7579f77SDag-Erling Smørgrav # trusted-keys-file: "" 524b7579f77SDag-Erling Smørgrav 525b7579f77SDag-Erling Smørgrav # Ignore chain of trust. Domain is treated as insecure. 526b7579f77SDag-Erling Smørgrav # domain-insecure: "example.com" 527b7579f77SDag-Erling Smørgrav 528b7579f77SDag-Erling Smørgrav # Override the date for validation with a specific fixed date. 529b7579f77SDag-Erling Smørgrav # Do not set this unless you are debugging signature inception 530b7579f77SDag-Erling Smørgrav # and expiration. "" or "0" turns the feature off. -1 ignores date. 531b7579f77SDag-Erling Smørgrav # val-override-date: "" 532b7579f77SDag-Erling Smørgrav 533b7579f77SDag-Erling Smørgrav # The time to live for bogus data, rrsets and messages. This avoids 534b7579f77SDag-Erling Smørgrav # some of the revalidation, until the time interval expires. in secs. 535b7579f77SDag-Erling Smørgrav # val-bogus-ttl: 60 536b7579f77SDag-Erling Smørgrav 537b7579f77SDag-Erling Smørgrav # The signature inception and expiration dates are allowed to be off 538b7579f77SDag-Erling Smørgrav # by 10% of the signature lifetime (expir-incep) from our local clock. 539b7579f77SDag-Erling Smørgrav # This leeway is capped with a minimum and a maximum. In seconds. 540b7579f77SDag-Erling Smørgrav # val-sig-skew-min: 3600 541b7579f77SDag-Erling Smørgrav # val-sig-skew-max: 86400 542b7579f77SDag-Erling Smørgrav 543b7579f77SDag-Erling Smørgrav # Should additional section of secure message also be kept clean of 544b7579f77SDag-Erling Smørgrav # unsecure data. Useful to shield the users of this validator from 545b7579f77SDag-Erling Smørgrav # potential bogus data in the additional section. All unsigned data 546b7579f77SDag-Erling Smørgrav # in the additional section is removed from secure messages. 547b7579f77SDag-Erling Smørgrav # val-clean-additional: yes 548b7579f77SDag-Erling Smørgrav 549b7579f77SDag-Erling Smørgrav # Turn permissive mode on to permit bogus messages. Thus, messages 550b7579f77SDag-Erling Smørgrav # for which security checks failed will be returned to clients, 551b7579f77SDag-Erling Smørgrav # instead of SERVFAIL. It still performs the security checks, which 552b7579f77SDag-Erling Smørgrav # result in interesting log files and possibly the AD bit in 553b7579f77SDag-Erling Smørgrav # replies if the message is found secure. The default is off. 554b7579f77SDag-Erling Smørgrav # val-permissive-mode: no 555b7579f77SDag-Erling Smørgrav 556b7579f77SDag-Erling Smørgrav # Ignore the CD flag in incoming queries and refuse them bogus data. 557b7579f77SDag-Erling Smørgrav # Enable it if the only clients of unbound are legacy servers (w2008) 558b7579f77SDag-Erling Smørgrav # that set CD but cannot validate themselves. 559b7579f77SDag-Erling Smørgrav # ignore-cd-flag: no 560b7579f77SDag-Erling Smørgrav 5618a384985SDag-Erling Smørgrav # Serve expired responses from cache, with TTL 0 in the response, 562bc892140SDag-Erling Smørgrav # and then attempt to fetch the data afresh. 563bc892140SDag-Erling Smørgrav # serve-expired: no 5644c75e3aaSDag-Erling Smørgrav # 5654c75e3aaSDag-Erling Smørgrav # Limit serving of expired responses to configured seconds after 5664c75e3aaSDag-Erling Smørgrav # expiration. 0 disables the limit. 5674c75e3aaSDag-Erling Smørgrav # serve-expired-ttl: 0 5684c75e3aaSDag-Erling Smørgrav # 5694c75e3aaSDag-Erling Smørgrav # Set the TTL of expired records to the serve-expired-ttl value after a 5704c75e3aaSDag-Erling Smørgrav # failed attempt to retrieve the record from upstream. This makes sure 5714c75e3aaSDag-Erling Smørgrav # that the expired records will be served as long as there are queries 5724c75e3aaSDag-Erling Smørgrav # for it. 5734c75e3aaSDag-Erling Smørgrav # serve-expired-ttl-reset: no 574bc892140SDag-Erling Smørgrav 575b7579f77SDag-Erling Smørgrav # Have the validator log failed validations for your diagnosis. 576b7579f77SDag-Erling Smørgrav # 0: off. 1: A line per failed user query. 2: With reason and bad IP. 577b7579f77SDag-Erling Smørgrav # val-log-level: 0 578b7579f77SDag-Erling Smørgrav 579b7579f77SDag-Erling Smørgrav # It is possible to configure NSEC3 maximum iteration counts per 580b7579f77SDag-Erling Smørgrav # keysize. Keep this table very short, as linear search is done. 581b7579f77SDag-Erling Smørgrav # A message with an NSEC3 with larger count is marked insecure. 582b7579f77SDag-Erling Smørgrav # List in ascending order the keysize and count values. 583b7579f77SDag-Erling Smørgrav # val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500" 584b7579f77SDag-Erling Smørgrav 585b7579f77SDag-Erling Smørgrav # instruct the auto-trust-anchor-file probing to add anchors after ttl. 586b7579f77SDag-Erling Smørgrav # add-holddown: 2592000 # 30 days 587b7579f77SDag-Erling Smørgrav 588b7579f77SDag-Erling Smørgrav # instruct the auto-trust-anchor-file probing to del anchors after ttl. 589b7579f77SDag-Erling Smørgrav # del-holddown: 2592000 # 30 days 590b7579f77SDag-Erling Smørgrav 591b7579f77SDag-Erling Smørgrav # auto-trust-anchor-file probing removes missing anchors after ttl. 592b7579f77SDag-Erling Smørgrav # If the value 0 is given, missing anchors are not removed. 593b7579f77SDag-Erling Smørgrav # keep-missing: 31622400 # 366 days 594b7579f77SDag-Erling Smørgrav 595e2d15004SDag-Erling Smørgrav # debug option that allows very small holddown times for key rollover, 596e2d15004SDag-Erling Smørgrav # otherwise the RFC mandates probe intervals must be at least 1 hour. 597b75612f8SDag-Erling Smørgrav # permit-small-holddown: no 598b75612f8SDag-Erling Smørgrav 599b7579f77SDag-Erling Smørgrav # the amount of memory to use for the key cache. 600b7579f77SDag-Erling Smørgrav # plain value in bytes or you can append k, m or G. default is "4Mb". 601b7579f77SDag-Erling Smørgrav # key-cache-size: 4m 602b7579f77SDag-Erling Smørgrav 603b7579f77SDag-Erling Smørgrav # the number of slabs to use for the key cache. 604b7579f77SDag-Erling Smørgrav # the number of slabs must be a power of 2. 605b7579f77SDag-Erling Smørgrav # more slabs reduce lock contention, but fragment memory usage. 606b7579f77SDag-Erling Smørgrav # key-cache-slabs: 4 607b7579f77SDag-Erling Smørgrav 608b7579f77SDag-Erling Smørgrav # the amount of memory to use for the negative cache (used for DLV). 609b7579f77SDag-Erling Smørgrav # plain value in bytes or you can append k, m or G. default is "1Mb". 610b7579f77SDag-Erling Smørgrav # neg-cache-size: 1m 611b7579f77SDag-Erling Smørgrav 61217d15b25SDag-Erling Smørgrav # By default, for a number of zones a small default 'nothing here' 61317d15b25SDag-Erling Smørgrav # reply is built-in. Query traffic is thus blocked. If you 61417d15b25SDag-Erling Smørgrav # wish to serve such zone you can unblock them by uncommenting one 61517d15b25SDag-Erling Smørgrav # of the nodefault statements below. 61617d15b25SDag-Erling Smørgrav # You may also have to use domain-insecure: zone to make DNSSEC work, 61717d15b25SDag-Erling Smørgrav # unless you have your own trust anchors for this zone. 61817d15b25SDag-Erling Smørgrav # local-zone: "localhost." nodefault 61917d15b25SDag-Erling Smørgrav # local-zone: "127.in-addr.arpa." nodefault 62017d15b25SDag-Erling Smørgrav # 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 621f61ef7f6SDag-Erling Smørgrav # local-zone: "onion." nodefault 622971980c3SDag-Erling Smørgrav # local-zone: "test." nodefault 623971980c3SDag-Erling Smørgrav # local-zone: "invalid." nodefault 62417d15b25SDag-Erling Smørgrav # local-zone: "10.in-addr.arpa." nodefault 62517d15b25SDag-Erling Smørgrav # local-zone: "16.172.in-addr.arpa." nodefault 62617d15b25SDag-Erling Smørgrav # local-zone: "17.172.in-addr.arpa." nodefault 62717d15b25SDag-Erling Smørgrav # local-zone: "18.172.in-addr.arpa." nodefault 62817d15b25SDag-Erling Smørgrav # local-zone: "19.172.in-addr.arpa." nodefault 62917d15b25SDag-Erling Smørgrav # local-zone: "20.172.in-addr.arpa." nodefault 63017d15b25SDag-Erling Smørgrav # local-zone: "21.172.in-addr.arpa." nodefault 63117d15b25SDag-Erling Smørgrav # local-zone: "22.172.in-addr.arpa." nodefault 63217d15b25SDag-Erling Smørgrav # local-zone: "23.172.in-addr.arpa." nodefault 63317d15b25SDag-Erling Smørgrav # local-zone: "24.172.in-addr.arpa." nodefault 63417d15b25SDag-Erling Smørgrav # local-zone: "25.172.in-addr.arpa." nodefault 63517d15b25SDag-Erling Smørgrav # local-zone: "26.172.in-addr.arpa." nodefault 63617d15b25SDag-Erling Smørgrav # local-zone: "27.172.in-addr.arpa." nodefault 63717d15b25SDag-Erling Smørgrav # local-zone: "28.172.in-addr.arpa." nodefault 63817d15b25SDag-Erling Smørgrav # local-zone: "29.172.in-addr.arpa." nodefault 63917d15b25SDag-Erling Smørgrav # local-zone: "30.172.in-addr.arpa." nodefault 64017d15b25SDag-Erling Smørgrav # local-zone: "31.172.in-addr.arpa." nodefault 64117d15b25SDag-Erling Smørgrav # local-zone: "168.192.in-addr.arpa." nodefault 64217d15b25SDag-Erling Smørgrav # local-zone: "0.in-addr.arpa." nodefault 64317d15b25SDag-Erling Smørgrav # local-zone: "254.169.in-addr.arpa." nodefault 64417d15b25SDag-Erling Smørgrav # local-zone: "2.0.192.in-addr.arpa." nodefault 64517d15b25SDag-Erling Smørgrav # local-zone: "100.51.198.in-addr.arpa." nodefault 64617d15b25SDag-Erling Smørgrav # local-zone: "113.0.203.in-addr.arpa." nodefault 64717d15b25SDag-Erling Smørgrav # local-zone: "255.255.255.255.in-addr.arpa." nodefault 64817d15b25SDag-Erling Smørgrav # 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 64917d15b25SDag-Erling Smørgrav # local-zone: "d.f.ip6.arpa." nodefault 65017d15b25SDag-Erling Smørgrav # local-zone: "8.e.f.ip6.arpa." nodefault 65117d15b25SDag-Erling Smørgrav # local-zone: "9.e.f.ip6.arpa." nodefault 65217d15b25SDag-Erling Smørgrav # local-zone: "a.e.f.ip6.arpa." nodefault 65317d15b25SDag-Erling Smørgrav # local-zone: "b.e.f.ip6.arpa." nodefault 65417d15b25SDag-Erling Smørgrav # local-zone: "8.b.d.0.1.0.0.2.ip6.arpa." nodefault 655ff825849SDag-Erling Smørgrav # And for 64.100.in-addr.arpa. to 127.100.in-addr.arpa. 656ff825849SDag-Erling Smørgrav 6570de4f1bfSDag-Erling Smørgrav # If unbound is running service for the local host then it is useful 658ff825849SDag-Erling Smørgrav # to perform lan-wide lookups to the upstream, and unblock the 659ff825849SDag-Erling Smørgrav # long list of local-zones above. If this unbound is a dns server 660ff825849SDag-Erling Smørgrav # for a network of computers, disabled is better and stops information 661ff825849SDag-Erling Smørgrav # leakage of local lan information. 662ff825849SDag-Erling Smørgrav # unblock-lan-zones: no 66317d15b25SDag-Erling Smørgrav 6640de4f1bfSDag-Erling Smørgrav # The insecure-lan-zones option disables validation for 6650de4f1bfSDag-Erling Smørgrav # these zones, as if they were all listed as domain-insecure. 6660de4f1bfSDag-Erling Smørgrav # insecure-lan-zones: no 6670de4f1bfSDag-Erling Smørgrav 668b7579f77SDag-Erling Smørgrav # a number of locally served zones can be configured. 669b7579f77SDag-Erling Smørgrav # local-zone: <zone> <type> 670b7579f77SDag-Erling Smørgrav # local-data: "<resource record string>" 671b7579f77SDag-Erling Smørgrav # o deny serves local data (if any), else, drops queries. 672b7579f77SDag-Erling Smørgrav # o refuse serves local data (if any), else, replies with error. 673b7579f77SDag-Erling Smørgrav # o static serves local data, else, nxdomain or nodata answer. 674b7579f77SDag-Erling Smørgrav # o transparent gives local data, but resolves normally for other names 675b7579f77SDag-Erling Smørgrav # o redirect serves the zone data for any subdomain in the zone. 676b7579f77SDag-Erling Smørgrav # o nodefault can be used to normally resolve AS112 zones. 677b7579f77SDag-Erling Smørgrav # o typetransparent resolves normally for other types and other names 678bc892140SDag-Erling Smørgrav # o inform acts like transparent, but logs client IP address 67909a3aaf3SDag-Erling Smørgrav # o inform_deny drops queries and logs client IP address 680*e86b9096SDag-Erling Smørgrav # o inform_redirect redirects queries and logs client IP address 681b5663de9SDag-Erling Smørgrav # o always_transparent, always_refuse, always_nxdomain, resolve in 6820fb34990SDag-Erling Smørgrav # that way but ignore local data for that name 68357bddd21SDag-Erling Smørgrav # o noview breaks out of that view towards global local-zones. 684b7579f77SDag-Erling Smørgrav # 685b7579f77SDag-Erling Smørgrav # defaults are localhost address, reverse for 127.0.0.1 and ::1 686b7579f77SDag-Erling Smørgrav # and nxdomain for AS112 zones. If you configure one of these zones 687b7579f77SDag-Erling Smørgrav # the default content is omitted, or you can omit it with 'nodefault'. 688b7579f77SDag-Erling Smørgrav # 689b7579f77SDag-Erling Smørgrav # If you configure local-data without specifying local-zone, by 690b7579f77SDag-Erling Smørgrav # default a transparent local-zone is created for the data. 691b7579f77SDag-Erling Smørgrav # 692b7579f77SDag-Erling Smørgrav # You can add locally served data with 693b7579f77SDag-Erling Smørgrav # local-zone: "local." static 694b7579f77SDag-Erling Smørgrav # local-data: "mycomputer.local. IN A 192.0.2.51" 695b7579f77SDag-Erling Smørgrav # local-data: 'mytext.local TXT "content of text record"' 696b7579f77SDag-Erling Smørgrav # 697b7579f77SDag-Erling Smørgrav # You can override certain queries with 698b7579f77SDag-Erling Smørgrav # local-data: "adserver.example.com A 127.0.0.1" 699b7579f77SDag-Erling Smørgrav # 700b7579f77SDag-Erling Smørgrav # You can redirect a domain to a fixed address with 701b7579f77SDag-Erling Smørgrav # (this makes example.com, www.example.com, etc, all go to 192.0.2.3) 702b7579f77SDag-Erling Smørgrav # local-zone: "example.com" redirect 703b7579f77SDag-Erling Smørgrav # local-data: "example.com A 192.0.2.3" 704b7579f77SDag-Erling Smørgrav # 705b7579f77SDag-Erling Smørgrav # Shorthand to make PTR records, "IPv4 name" or "IPv6 name". 706b7579f77SDag-Erling Smørgrav # You can also add PTR records using local-data directly, but then 707b7579f77SDag-Erling Smørgrav # you need to do the reverse notation yourself. 708b7579f77SDag-Erling Smørgrav # local-data-ptr: "192.0.2.3 www.example.com" 709b7579f77SDag-Erling Smørgrav 710b5663de9SDag-Erling Smørgrav # tag a localzone with a list of tag names (in "" with spaces between) 711b5663de9SDag-Erling Smørgrav # local-zone-tag: "example.com" "tag2 tag3" 712b5663de9SDag-Erling Smørgrav 713b5663de9SDag-Erling Smørgrav # add a netblock specific override to a localzone, with zone type 714b5663de9SDag-Erling Smørgrav # local-zone-override: "example.com" 192.0.2.0/24 refuse 715b5663de9SDag-Erling Smørgrav 7160fb34990SDag-Erling Smørgrav # service clients over TLS (on the TCP sockets), with plain DNS inside 7170fb34990SDag-Erling Smørgrav # the TLS stream. Give the certificate to use and private key. 718b7579f77SDag-Erling Smørgrav # default is "" (disabled). requires restart to take effect. 71957bddd21SDag-Erling Smørgrav # tls-service-key: "path/to/privatekeyfile.key" 72057bddd21SDag-Erling Smørgrav # tls-service-pem: "path/to/publiccertfile.pem" 72157bddd21SDag-Erling Smørgrav # tls-port: 853 722b7579f77SDag-Erling Smørgrav 723*e86b9096SDag-Erling Smørgrav # cipher setting for TLSv1.2 724*e86b9096SDag-Erling Smørgrav # 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" 725*e86b9096SDag-Erling Smørgrav # cipher setting for TLSv1.3 726*e86b9096SDag-Erling Smørgrav # 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" 727*e86b9096SDag-Erling Smørgrav 728*e86b9096SDag-Erling Smørgrav # Add the secret file for TLS Session Ticket. 729*e86b9096SDag-Erling Smørgrav # Secret file must be 80 bytes of random data. 730*e86b9096SDag-Erling Smørgrav # First key use to encrypt and decrypt TLS session tickets. 731*e86b9096SDag-Erling Smørgrav # Other keys use to decrypt only. 732*e86b9096SDag-Erling Smørgrav # requires restart to take effect. 733*e86b9096SDag-Erling Smørgrav # tls-session-ticket-keys: "path/to/secret_file1" 734*e86b9096SDag-Erling Smørgrav # tls-session-ticket-keys: "path/to/secret_file2" 735*e86b9096SDag-Erling Smørgrav 7360fb34990SDag-Erling Smørgrav # request upstream over TLS (with plain DNS inside the TLS stream). 737b7579f77SDag-Erling Smørgrav # Default is no. Can be turned on and off with unbound-control. 73857bddd21SDag-Erling Smørgrav # tls-upstream: no 73957bddd21SDag-Erling Smørgrav 74057bddd21SDag-Erling Smørgrav # Certificates used to authenticate connections made upstream. 74157bddd21SDag-Erling Smørgrav # tls-cert-bundle: "" 742b7579f77SDag-Erling Smørgrav 7433bd4df0aSDag-Erling Smørgrav # Add system certs to the cert bundle, from the Windows Cert Store 7443bd4df0aSDag-Erling Smørgrav # tls-win-cert: no 7453bd4df0aSDag-Erling Smørgrav 7460fb34990SDag-Erling Smørgrav # Also serve tls on these port numbers (eg. 443, ...), by listing 7477da0adf7SDag-Erling Smørgrav # tls-additional-port: portno for each of the port numbers. 7480fb34990SDag-Erling Smørgrav 749ff825849SDag-Erling Smørgrav # DNS64 prefix. Must be specified when DNS64 is use. 750ff825849SDag-Erling Smørgrav # Enable dns64 in module-config. Used to synthesize IPv6 from IPv4. 751ff825849SDag-Erling Smørgrav # dns64-prefix: 64:ff9b::0/96 752ff825849SDag-Erling Smørgrav 7534c75e3aaSDag-Erling Smørgrav # DNS64 ignore AAAA records for these domains and use A instead. 7544c75e3aaSDag-Erling Smørgrav # dns64-ignore-aaaa: "example.com" 7554c75e3aaSDag-Erling Smørgrav 75609a3aaf3SDag-Erling Smørgrav # ratelimit for uncached, new queries, this limits recursion effort. 75709a3aaf3SDag-Erling Smørgrav # ratelimiting is experimental, and may help against randomqueryflood. 75809a3aaf3SDag-Erling Smørgrav # if 0(default) it is disabled, otherwise state qps allowed per zone. 75909a3aaf3SDag-Erling Smørgrav # ratelimit: 0 76009a3aaf3SDag-Erling Smørgrav 76109a3aaf3SDag-Erling Smørgrav # ratelimits are tracked in a cache, size in bytes of cache (or k,m). 76209a3aaf3SDag-Erling Smørgrav # ratelimit-size: 4m 76309a3aaf3SDag-Erling Smørgrav # ratelimit cache slabs, reduces lock contention if equal to cpucount. 76409a3aaf3SDag-Erling Smørgrav # ratelimit-slabs: 4 76509a3aaf3SDag-Erling Smørgrav 76609a3aaf3SDag-Erling Smørgrav # 0 blocks when ratelimited, otherwise let 1/xth traffic through 76709a3aaf3SDag-Erling Smørgrav # ratelimit-factor: 10 76809a3aaf3SDag-Erling Smørgrav 76909a3aaf3SDag-Erling Smørgrav # override the ratelimit for a specific domain name. 77009a3aaf3SDag-Erling Smørgrav # give this setting multiple times to have multiple overrides. 77109a3aaf3SDag-Erling Smørgrav # ratelimit-for-domain: example.com 1000 77209a3aaf3SDag-Erling Smørgrav # override the ratelimits for all domains below a domain name 77309a3aaf3SDag-Erling Smørgrav # can give this multiple times, the name closest to the zone is used. 774b5663de9SDag-Erling Smørgrav # ratelimit-below-domain: com 1000 77509a3aaf3SDag-Erling Smørgrav 7763005e0a3SDag-Erling Smørgrav # global query ratelimit for all ip addresses. 7773005e0a3SDag-Erling Smørgrav # feature is experimental. 7783005e0a3SDag-Erling Smørgrav # if 0(default) it is disabled, otherwise states qps allowed per ip address 7793005e0a3SDag-Erling Smørgrav # ip-ratelimit: 0 7803005e0a3SDag-Erling Smørgrav 7813005e0a3SDag-Erling Smørgrav # ip ratelimits are tracked in a cache, size in bytes of cache (or k,m). 7823005e0a3SDag-Erling Smørgrav # ip-ratelimit-size: 4m 7833005e0a3SDag-Erling Smørgrav # ip ratelimit cache slabs, reduces lock contention if equal to cpucount. 7843005e0a3SDag-Erling Smørgrav # ip-ratelimit-slabs: 4 7853005e0a3SDag-Erling Smørgrav 7863005e0a3SDag-Erling Smørgrav # 0 blocks when ip is ratelimited, otherwise let 1/xth traffic through 7873005e0a3SDag-Erling Smørgrav # ip-ratelimit-factor: 10 7883005e0a3SDag-Erling Smørgrav 7894c75e3aaSDag-Erling Smørgrav # Limit the number of connections simultaneous from a netblock 7904c75e3aaSDag-Erling Smørgrav # tcp-connection-limit: 192.0.2.0/24 12 7914c75e3aaSDag-Erling Smørgrav 792*e86b9096SDag-Erling Smørgrav # select from the fastest servers this many times out of 1000. 0 means 793*e86b9096SDag-Erling Smørgrav # the fast server select is disabled. prefetches are not sped up. 794*e86b9096SDag-Erling Smørgrav # fast-server-permil: 0 795*e86b9096SDag-Erling Smørgrav # the number of servers that will be used in the fast server selection. 796*e86b9096SDag-Erling Smørgrav # fast-server-num: 3 7970fb34990SDag-Erling Smørgrav 798c7f4d7adSDag-Erling Smørgrav # Specific options for ipsecmod. unbound needs to be configured with 799c7f4d7adSDag-Erling Smørgrav # --enable-ipsecmod for these to take effect. 800c7f4d7adSDag-Erling Smørgrav # 801c7f4d7adSDag-Erling Smørgrav # Enable or disable ipsecmod (it still needs to be defined in 802c7f4d7adSDag-Erling Smørgrav # module-config above). Can be used when ipsecmod needs to be 803c7f4d7adSDag-Erling Smørgrav # enabled/disabled via remote-control(below). 804c7f4d7adSDag-Erling Smørgrav # ipsecmod-enabled: yes 805c7f4d7adSDag-Erling Smørgrav # 806c7f4d7adSDag-Erling Smørgrav # Path to executable external hook. It must be defined when ipsecmod is 807c7f4d7adSDag-Erling Smørgrav # listed in module-config (above). 808c7f4d7adSDag-Erling Smørgrav # ipsecmod-hook: "./my_executable" 809c7f4d7adSDag-Erling Smørgrav # 810c7f4d7adSDag-Erling Smørgrav # When enabled unbound will reply with SERVFAIL if the return value of 811c7f4d7adSDag-Erling Smørgrav # the ipsecmod-hook is not 0. 812c7f4d7adSDag-Erling Smørgrav # ipsecmod-strict: no 813c7f4d7adSDag-Erling Smørgrav # 814c7f4d7adSDag-Erling Smørgrav # Maximum time to live (TTL) for cached A/AAAA records with IPSECKEY. 815c7f4d7adSDag-Erling Smørgrav # ipsecmod-max-ttl: 3600 816c7f4d7adSDag-Erling Smørgrav # 817c7f4d7adSDag-Erling Smørgrav # Reply with A/AAAA even if the relevant IPSECKEY is bogus. Mainly used for 818c7f4d7adSDag-Erling Smørgrav # testing. 819c7f4d7adSDag-Erling Smørgrav # ipsecmod-ignore-bogus: no 820c7f4d7adSDag-Erling Smørgrav # 821c7f4d7adSDag-Erling Smørgrav # Domains for which ipsecmod will be triggered. If not defined (default) 822c7f4d7adSDag-Erling Smørgrav # all domains are treated as being whitelisted. 823c7f4d7adSDag-Erling Smørgrav # ipsecmod-whitelist: "example.com" 824c7f4d7adSDag-Erling Smørgrav # ipsecmod-whitelist: "nlnetlabs.nl" 825c7f4d7adSDag-Erling Smørgrav 8263005e0a3SDag-Erling Smørgrav 827b7579f77SDag-Erling Smørgrav# Python config section. To enable: 828b7579f77SDag-Erling Smørgrav# o use --with-pythonmodule to configure before compiling. 829b7579f77SDag-Erling Smørgrav# o list python in the module-config string (above) to enable. 830*e86b9096SDag-Erling Smørgrav# It can be at the start, it gets validated results, or just before 831*e86b9096SDag-Erling Smørgrav# the iterator and process before DNSSEC validation. 832b7579f77SDag-Erling Smørgrav# o and give a python-script to run. 833b7579f77SDag-Erling Smørgravpython: 834b7579f77SDag-Erling Smørgrav # Script file to load 835b7579f77SDag-Erling Smørgrav # python-script: "@UNBOUND_SHARE_DIR@/ubmodule-tst.py" 836b7579f77SDag-Erling Smørgrav 837b7579f77SDag-Erling Smørgrav# Remote control config section. 838b7579f77SDag-Erling Smørgravremote-control: 839b7579f77SDag-Erling Smørgrav # Enable remote control with unbound-control(8) here. 840b7579f77SDag-Erling Smørgrav # set up the keys and certificates with unbound-control-setup. 841b7579f77SDag-Erling Smørgrav # control-enable: no 842b7579f77SDag-Erling Smørgrav 843b7579f77SDag-Erling Smørgrav # what interfaces are listened to for remote control. 844b7579f77SDag-Erling Smørgrav # give 0.0.0.0 and ::0 to listen to all interfaces. 8457da0adf7SDag-Erling Smørgrav # set to an absolute path to use a unix local name pipe, certificates 8467da0adf7SDag-Erling Smørgrav # are not used for that, so key and cert files need not be present. 847b7579f77SDag-Erling Smørgrav # control-interface: 127.0.0.1 848b7579f77SDag-Erling Smørgrav # control-interface: ::1 849b7579f77SDag-Erling Smørgrav 850b7579f77SDag-Erling Smørgrav # port number for remote control operations. 851b7579f77SDag-Erling Smørgrav # control-port: 8953 852b7579f77SDag-Erling Smørgrav 8537da0adf7SDag-Erling Smørgrav # for localhost, you can disable use of TLS by setting this to "no" 8547da0adf7SDag-Erling Smørgrav # For local sockets this option is ignored, and TLS is not used. 8557da0adf7SDag-Erling Smørgrav # control-use-cert: "yes" 8567da0adf7SDag-Erling Smørgrav 857b7579f77SDag-Erling Smørgrav # unbound server key file. 858b7579f77SDag-Erling Smørgrav # server-key-file: "@UNBOUND_RUN_DIR@/unbound_server.key" 859b7579f77SDag-Erling Smørgrav 860b7579f77SDag-Erling Smørgrav # unbound server certificate file. 861b7579f77SDag-Erling Smørgrav # server-cert-file: "@UNBOUND_RUN_DIR@/unbound_server.pem" 862b7579f77SDag-Erling Smørgrav 863b7579f77SDag-Erling Smørgrav # unbound-control key file. 864b7579f77SDag-Erling Smørgrav # control-key-file: "@UNBOUND_RUN_DIR@/unbound_control.key" 865b7579f77SDag-Erling Smørgrav 866b7579f77SDag-Erling Smørgrav # unbound-control certificate file. 867b7579f77SDag-Erling Smørgrav # control-cert-file: "@UNBOUND_RUN_DIR@/unbound_control.pem" 868b7579f77SDag-Erling Smørgrav 869b7579f77SDag-Erling Smørgrav# Stub zones. 870b7579f77SDag-Erling Smørgrav# Create entries like below, to make all queries for 'example.com' and 871b7579f77SDag-Erling Smørgrav# 'example.org' go to the given list of nameservers. list zero or more 872b7579f77SDag-Erling Smørgrav# nameservers by hostname or by ipaddress. If you set stub-prime to yes, 873b7579f77SDag-Erling Smørgrav# the list is treated as priming hints (default is no). 874b7579f77SDag-Erling Smørgrav# With stub-first yes, it attempts without the stub if it fails. 875b75612f8SDag-Erling Smørgrav# Consider adding domain-insecure: name and local-zone: name nodefault 876b75612f8SDag-Erling Smørgrav# to the server: section if the stub is a locally served zone. 877b7579f77SDag-Erling Smørgrav# stub-zone: 878b7579f77SDag-Erling Smørgrav# name: "example.com" 879b7579f77SDag-Erling Smørgrav# stub-addr: 192.0.2.68 880b7579f77SDag-Erling Smørgrav# stub-prime: no 881b7579f77SDag-Erling Smørgrav# stub-first: no 88257bddd21SDag-Erling Smørgrav# stub-tls-upstream: no 8834c75e3aaSDag-Erling Smørgrav# stub-no-cache: no 884b7579f77SDag-Erling Smørgrav# stub-zone: 885b7579f77SDag-Erling Smørgrav# name: "example.org" 886b7579f77SDag-Erling Smørgrav# stub-host: ns.example.com. 887b7579f77SDag-Erling Smørgrav 888b7579f77SDag-Erling Smørgrav# Forward zones 889b7579f77SDag-Erling Smørgrav# Create entries like below, to make all queries for 'example.com' and 890b7579f77SDag-Erling Smørgrav# 'example.org' go to the given list of servers. These servers have to handle 891b7579f77SDag-Erling Smørgrav# recursion to other nameservers. List zero or more nameservers by hostname 892b7579f77SDag-Erling Smørgrav# or by ipaddress. Use an entry with name "." to forward all queries. 893b7579f77SDag-Erling Smørgrav# If you enable forward-first, it attempts without the forward if it fails. 894b7579f77SDag-Erling Smørgrav# forward-zone: 895b7579f77SDag-Erling Smørgrav# name: "example.com" 896b7579f77SDag-Erling Smørgrav# forward-addr: 192.0.2.68 897b7579f77SDag-Erling Smørgrav# forward-addr: 192.0.2.73@5355 # forward to port 5355. 898b7579f77SDag-Erling Smørgrav# forward-first: no 89957bddd21SDag-Erling Smørgrav# forward-tls-upstream: no 9004c75e3aaSDag-Erling Smørgrav# forward-no-cache: no 901b7579f77SDag-Erling Smørgrav# forward-zone: 902b7579f77SDag-Erling Smørgrav# name: "example.org" 903b7579f77SDag-Erling Smørgrav# forward-host: fwd.example.com 904bc892140SDag-Erling Smørgrav 90557bddd21SDag-Erling Smørgrav# Authority zones 90657bddd21SDag-Erling Smørgrav# The data for these zones is kept locally, from a file or downloaded. 90757bddd21SDag-Erling Smørgrav# The data can be served to downstream clients, or used instead of the 90857bddd21SDag-Erling Smørgrav# upstream (which saves a lookup to the upstream). The first example 90957bddd21SDag-Erling Smørgrav# has a copy of the root for local usage. The second serves example.org 91057bddd21SDag-Erling Smørgrav# authoritatively. zonefile: reads from file (and writes to it if you also 91157bddd21SDag-Erling Smørgrav# download it), master: fetches with AXFR and IXFR, or url to zonefile. 9120fb34990SDag-Erling Smørgrav# With allow-notify: you can give additional (apart from masters) sources of 9130fb34990SDag-Erling Smørgrav# notifies. 91457bddd21SDag-Erling Smørgrav# auth-zone: 91557bddd21SDag-Erling Smørgrav# name: "." 916*e86b9096SDag-Erling Smørgrav# master: 199.9.14.201 # b.root-servers.net 917*e86b9096SDag-Erling Smørgrav# master: 192.33.4.12 # c.root-servers.net 918*e86b9096SDag-Erling Smørgrav# master: 199.7.91.13 # d.root-servers.net 919*e86b9096SDag-Erling Smørgrav# master: 192.5.5.241 # f.root-servers.net 920*e86b9096SDag-Erling Smørgrav# master: 192.112.36.4 # g.root-servers.net 921*e86b9096SDag-Erling Smørgrav# master: 193.0.14.129 # k.root-servers.net 922*e86b9096SDag-Erling Smørgrav# master: 192.0.47.132 # xfr.cjr.dns.icann.org 923*e86b9096SDag-Erling Smørgrav# master: 192.0.32.132 # xfr.lax.dns.icann.org 924*e86b9096SDag-Erling Smørgrav# master: 2001:500:200::b # b.root-servers.net 925*e86b9096SDag-Erling Smørgrav# master: 2001:500:2::c # c.root-servers.net 926*e86b9096SDag-Erling Smørgrav# master: 2001:500:2d::d # d.root-servers.net 927*e86b9096SDag-Erling Smørgrav# master: 2001:500:2f::f # f.root-servers.net 928*e86b9096SDag-Erling Smørgrav# master: 2001:500:12::d0d # g.root-servers.net 929*e86b9096SDag-Erling Smørgrav# master: 2001:7fd::1 # k.root-servers.net 930*e86b9096SDag-Erling Smørgrav# master: 2620:0:2830:202::132 # xfr.cjr.dns.icann.org 931*e86b9096SDag-Erling Smørgrav# master: 2620:0:2d0:202::132 # xfr.lax.dns.icann.org 932*e86b9096SDag-Erling Smørgrav# fallback-enabled: yes 93357bddd21SDag-Erling Smørgrav# for-downstream: no 93457bddd21SDag-Erling Smørgrav# for-upstream: yes 93557bddd21SDag-Erling Smørgrav# auth-zone: 93657bddd21SDag-Erling Smørgrav# name: "example.org" 93757bddd21SDag-Erling Smørgrav# for-downstream: yes 93857bddd21SDag-Erling Smørgrav# for-upstream: yes 93957bddd21SDag-Erling Smørgrav# zonefile: "example.org.zone" 94057bddd21SDag-Erling Smørgrav 941bc892140SDag-Erling Smørgrav# Views 942bc892140SDag-Erling Smørgrav# Create named views. Name must be unique. Map views to requests using 943bc892140SDag-Erling Smørgrav# the access-control-view option. Views can contain zero or more local-zone 944bc892140SDag-Erling Smørgrav# and local-data options. Options from matching views will override global 945bc892140SDag-Erling Smørgrav# options. Global options will be used if no matching view is found. 946bc892140SDag-Erling Smørgrav# With view-first yes, it will try to answer using the global local-zone and 947bc892140SDag-Erling Smørgrav# local-data elements if there is no view specific match. 948bc892140SDag-Erling Smørgrav# view: 949bc892140SDag-Erling Smørgrav# name: "viewname" 950bc892140SDag-Erling Smørgrav# local-zone: "example.com" redirect 951bc892140SDag-Erling Smørgrav# local-data: "example.com A 192.0.2.3" 95265b390aaSDag-Erling Smørgrav# local-data-ptr: "192.0.2.3 www.example.com" 953bc892140SDag-Erling Smørgrav# view-first: no 954bc892140SDag-Erling Smørgrav# view: 955bc892140SDag-Erling Smørgrav# name: "anotherview" 956bc892140SDag-Erling Smørgrav# local-zone: "example.com" refuse 95765b390aaSDag-Erling Smørgrav 95865b390aaSDag-Erling Smørgrav# DNSCrypt 95965b390aaSDag-Erling Smørgrav# Caveats: 96065b390aaSDag-Erling Smørgrav# 1. the keys/certs cannot be produced by unbound. You can use dnscrypt-wrapper 96165b390aaSDag-Erling Smørgrav# for this: https://github.com/cofyc/dnscrypt-wrapper/blob/master/README.md#usage 96265b390aaSDag-Erling Smørgrav# 2. dnscrypt channel attaches to an interface. you MUST set interfaces to 96365b390aaSDag-Erling Smørgrav# listen on `dnscrypt-port` with the follo0wing snippet: 96465b390aaSDag-Erling Smørgrav# server: 96565b390aaSDag-Erling Smørgrav# interface: 0.0.0.0@443 96665b390aaSDag-Erling Smørgrav# interface: ::0@443 96765b390aaSDag-Erling Smørgrav# 96865b390aaSDag-Erling Smørgrav# Finally, `dnscrypt` config has its own section. 96965b390aaSDag-Erling Smørgrav# dnscrypt: 97065b390aaSDag-Erling Smørgrav# dnscrypt-enable: yes 97165b390aaSDag-Erling Smørgrav# dnscrypt-port: 443 97265b390aaSDag-Erling Smørgrav# dnscrypt-provider: 2.dnscrypt-cert.example.com. 97365b390aaSDag-Erling Smørgrav# dnscrypt-secret-key: /path/unbound-conf/keys1/1.key 97465b390aaSDag-Erling Smørgrav# dnscrypt-secret-key: /path/unbound-conf/keys2/1.key 97565b390aaSDag-Erling Smørgrav# dnscrypt-provider-cert: /path/unbound-conf/keys1/1.cert 97665b390aaSDag-Erling Smørgrav# dnscrypt-provider-cert: /path/unbound-conf/keys2/1.cert 977971980c3SDag-Erling Smørgrav 978971980c3SDag-Erling Smørgrav# CacheDB 979971980c3SDag-Erling Smørgrav# Enable external backend DB as auxiliary cache. Specify the backend name 980971980c3SDag-Erling Smørgrav# (default is "testframe", which has no use other than for debugging and 981971980c3SDag-Erling Smørgrav# testing) and backend-specific options. The 'cachedb' module must be 982*e86b9096SDag-Erling Smørgrav# included in module-config, just before the iterator module. 983971980c3SDag-Erling Smørgrav# cachedb: 984971980c3SDag-Erling Smørgrav# backend: "testframe" 985971980c3SDag-Erling Smørgrav# # secret seed string to calculate hashed keys 986971980c3SDag-Erling Smørgrav# secret-seed: "default" 9870fb34990SDag-Erling Smørgrav# 9880fb34990SDag-Erling Smørgrav# # For "redis" backend: 9890fb34990SDag-Erling Smørgrav# # redis server's IP address or host name 9900fb34990SDag-Erling Smørgrav# redis-server-host: 127.0.0.1 9910fb34990SDag-Erling Smørgrav# # redis server's TCP port 9920fb34990SDag-Erling Smørgrav# redis-server-port: 6379 9930fb34990SDag-Erling Smørgrav# # timeout (in ms) for communication with the redis server 9940fb34990SDag-Erling Smørgrav# redis-timeout: 100 995