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# |
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# Example configuration file. |
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# |
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# See unbound.conf(5) man page, version 1.10.0. |
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# |
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# this is a comment. |
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#Use this to include other text into the file. |
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#include: "/etc/unbound/rpz.conf" |
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# The server clause sets the main parameters. |
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server: |
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# whitespace is not necessary, but looks cleaner. |
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# verbosity number, 0 is least verbose. 1 is default. |
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verbosity: 1 |
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# print statistics to the log (for every thread) every N seconds. |
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# Set to "" or 0 to disable. Default is disabled. |
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# statistics-interval: 0 |
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# enable shm for stats, default no. if you enable also enable |
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# statistics-interval, every time it also writes stats to the |
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# shared memory segment keyed with shm-key. |
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# shm-enable: no |
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# shm for stats uses this key, and key+1 for the shared mem segment. |
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# shm-key: 11777 |
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# enable cumulative statistics, without clearing them after printing. |
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# statistics-cumulative: no |
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# enable extended statistics (query types, answer codes, status) |
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# printed from unbound-control. default off, because of speed. |
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# extended-statistics: no |
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# number of threads to create. 1 disables threading. |
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num-threads: 1 |
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# specify the interfaces to answer queries from by ip-address. |
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# The default is to listen to localhost (127.0.0.1 and ::1). |
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# specify 0.0.0.0 and ::0 to bind to all available interfaces. |
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# specify every interface[@port] on a new 'interface:' labelled line. |
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# The listen interfaces are not changed on reload, only on restart. |
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# interface: 192.0.2.153 |
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# interface: 192.0.2.154 |
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# interface: 192.0.2.154@5003 |
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# interface: 2001:DB8::5 |
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# enable this feature to copy the source address of queries to reply. |
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# Socket options are not supported on all platforms. experimental. |
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interface-automatic: yes |
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# port to answer queries from |
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# port: 53 |
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# specify the interfaces to send outgoing queries to authoritative |
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# server from by ip-address. If none, the default (all) interface |
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# is used. Specify every interface on a 'outgoing-interface:' line. |
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# outgoing-interface: 192.0.2.153 |
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# outgoing-interface: 2001:DB8::5 |
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# outgoing-interface: 2001:DB8::6 |
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# Specify a netblock to use remainder 64 bits as random bits for |
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# upstream queries. Uses freebind option (Linux). |
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# outgoing-interface: 2001:DB8::/64 |
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# Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo |
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# And: ip -6 route add local 2001:db8::/64 dev lo |
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# And set prefer-ip6: yes to use the ip6 randomness from a netblock. |
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# Set this to yes to prefer ipv6 upstream servers over ipv4. |
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# prefer-ip6: no |
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# number of ports to allocate per thread, determines the size of the |
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# port range that can be open simultaneously. About double the |
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# num-queries-per-thread, or, use as many as the OS will allow you. |
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# outgoing-range: 4096 |
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# permit unbound to use this port number or port range for |
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# making outgoing queries, using an outgoing interface. |
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# outgoing-port-permit: 32768 |
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# deny unbound the use this of port number or port range for |
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# making outgoing queries, using an outgoing interface. |
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# Use this to make sure unbound does not grab a UDP port that some |
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# other server on this computer needs. The default is to avoid |
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# IANA-assigned port numbers. |
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# If multiple outgoing-port-permit and outgoing-port-avoid options |
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# are present, they are processed in order. |
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# outgoing-port-avoid: "3200-3208" |
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# number of outgoing simultaneous tcp buffers to hold per thread. |
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# outgoing-num-tcp: 10 |
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# number of incoming simultaneous tcp buffers to hold per thread. |
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# incoming-num-tcp: 10 |
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# buffer size for UDP port 53 incoming (SO_RCVBUF socket option). |
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# 0 is system default. Use 4m to catch query spikes for busy servers. |
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# so-rcvbuf: 0 |
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# buffer size for UDP port 53 outgoing (SO_SNDBUF socket option). |
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# 0 is system default. Use 4m to handle spikes on very busy servers. |
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# so-sndbuf: 0 |
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# use SO_REUSEPORT to distribute queries over threads. |
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# at extreme load it could be better to turn it off to distribute even. |
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so-reuseport: yes |
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# use IP_TRANSPARENT so the interface: addresses can be non-local |
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# and you can config non-existing IPs that are going to work later on |
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# (uses IP_BINDANY on FreeBSD). |
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# ip-transparent: no |
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# use IP_FREEBIND so the interface: addresses can be non-local |
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# and you can bind to nonexisting IPs and interfaces that are down. |
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# Linux only. On Linux you also have ip-transparent that is similar. |
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# ip-freebind: no |
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# EDNS reassembly buffer to advertise to UDP peers (the actual buffer |
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# is set with msg-buffer-size). 1472 can solve fragmentation (timeouts) |
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# edns-buffer-size: 4096 |
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# Maximum UDP response size (not applied to TCP response). |
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# Suggested values are 512 to 4096. Default is 4096. 65536 disables it. |
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# max-udp-size: 4096 |
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# max memory to use for stream(tcp and tls) waiting result buffers. |
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# stream-wait-size: 4m |
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# buffer size for handling DNS data. No messages larger than this |
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# size can be sent or received, by UDP or TCP. In bytes. |
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# msg-buffer-size: 65552 |
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# the amount of memory to use for the message cache. |
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# plain value in bytes or you can append k, m or G. default is "4Mb". |
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# msg-cache-size: 4m |
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# the number of slabs to use for the message cache. |
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# the number of slabs must be a power of 2. |
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# more slabs reduce lock contention, but fragment memory usage. |
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# msg-cache-slabs: 4 |
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# the number of queries that a thread gets to service. |
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# num-queries-per-thread: 1024 |
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# if very busy, 50% queries run to completion, 50% get timeout in msec |
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# jostle-timeout: 200 |
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# msec to wait before close of port on timeout UDP. 0 disables. |
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# delay-close: 0 |
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# msec for waiting for an unknown server to reply. Increase if you |
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# are behind a slow satellite link, to eg. 1128. |
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# unknown-server-time-limit: 376 |
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# the amount of memory to use for the RRset cache. |
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# plain value in bytes or you can append k, m or G. default is "4Mb". |
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rrset-cache-size: 4m |
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# the number of slabs to use for the RRset cache. |
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# the number of slabs must be a power of 2. |
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# more slabs reduce lock contention, but fragment memory usage. |
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# rrset-cache-slabs: 4 |
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# the time to live (TTL) value lower bound, in seconds. Default 0. |
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# If more than an hour could easily give trouble due to stale data. |
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cache-min-ttl: 3600 |
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# the time to live (TTL) value cap for RRsets and messages in the |
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# cache. Items are not cached for longer. In seconds. |
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# cache-max-ttl: 86400 |
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# the time to live (TTL) value cap for negative responses in the cache |
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# cache-max-negative-ttl: 3600 |
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# the time to live (TTL) value for cached roundtrip times, lameness and |
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# EDNS version information for hosts. In seconds. |
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# infra-host-ttl: 900 |
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# minimum wait time for responses, increase if uplink is long. In msec. |
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# infra-cache-min-rtt: 50 |
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# the number of slabs to use for the Infrastructure cache. |
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# the number of slabs must be a power of 2. |
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# more slabs reduce lock contention, but fragment memory usage. |
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# infra-cache-slabs: 4 |
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# the maximum number of hosts that are cached (roundtrip, EDNS, lame). |
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infra-cache-numhosts: 10000 |
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# define a number of tags here, use with local-zone, access-control. |
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# repeat the define-tag statement to add additional tags. |
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# define-tag: "tag1 tag2 tag3" |
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# Enable IPv4, "yes" or "no". |
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do-ip4: yes |
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# Enable IPv6, "yes" or "no". |
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do-ip6: no |
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# Enable UDP, "yes" or "no". |
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do-udp: yes |
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# Enable TCP, "yes" or "no". |
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do-tcp: yes |
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# upstream connections use TCP only (and no UDP), "yes" or "no" |
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# useful for tunneling scenarios, default no. |
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# tcp-upstream: no |
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# upstream connections also use UDP (even if do-udp is no). |
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# useful if if you want UDP upstream, but don't provide UDP downstream. |
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# udp-upstream-without-downstream: no |
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# Maximum segment size (MSS) of TCP socket on which the server |
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# responds to queries. Default is 0, system default MSS. |
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# tcp-mss: 0 |
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# Maximum segment size (MSS) of TCP socket for outgoing queries. |
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# Default is 0, system default MSS. |
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# outgoing-tcp-mss: 0 |
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# Idle TCP timeout, connection closed in milliseconds |
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# tcp-idle-timeout: 30000 |
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# Enable EDNS TCP keepalive option. |
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# edns-tcp-keepalive: no |
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# Timeout for EDNS TCP keepalive, in msec. |
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# edns-tcp-keepalive-timeout: 120000 |
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# Use systemd socket activation for UDP, TCP, and control sockets. |
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# use-systemd: no |
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# Detach from the terminal, run in background, "yes" or "no". |
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# Set the value to "no" when unbound runs as systemd service. |
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# do-daemonize: yes |
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# control which clients are allowed to make (recursive) queries |
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# to this server. Specify classless netblocks with /size and action. |
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# By default everything is refused, except for localhost. |
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# Choose deny (drop message), refuse (polite error reply), |
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# allow (recursive ok), allow_setrd (recursive ok, rd bit is forced on), |
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# allow_snoop (recursive and nonrecursive ok) |
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# deny_non_local (drop queries unless can be answered from local-data) |
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# refuse_non_local (like deny_non_local but polite error reply). |
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# access-control: 0.0.0.0/0 refuse |
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# access-control: 127.0.0.0/8 allow |
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# access-control: ::0/0 refuse |
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# access-control: ::1 allow |
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# access-control: ::ffff:127.0.0.1 allow |
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access-control: 127.0.0.0/8 allow |
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# tag access-control with list of tags (in "" with spaces between) |
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# Clients using this access control element use localzones that |
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# are tagged with one of these tags. |
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# access-control-tag: 192.0.2.0/24 "tag2 tag3" |
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# set action for particular tag for given access control element |
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# if you have multiple tag values, the tag used to lookup the action |
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# is the first tag match between access-control-tag and local-zone-tag |
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# where "first" comes from the order of the define-tag values. |
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# access-control-tag-action: 192.0.2.0/24 tag3 refuse |
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# set redirect data for particular tag for access control element |
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# access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1" |
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# Set view for access control element |
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# access-control-view: 192.0.2.0/24 viewname |
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# if given, a chroot(2) is done to the given directory. |
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# i.e. you can chroot to the working directory, for example, |
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# for extra security, but make sure all files are in that directory. |
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# |
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# If chroot is enabled, you should pass the configfile (from the |
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# commandline) as a full path from the original root. After the |
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# chroot has been performed the now defunct portion of the config |
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# file path is removed to be able to reread the config after a reload. |
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# |
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# All other file paths (working dir, logfile, roothints, and |
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# key files) can be specified in several ways: |
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# o as an absolute path relative to the new root. |
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# o as a relative path to the working directory. |
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# o as an absolute path relative to the original root. |
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# In the last case the path is adjusted to remove the unused portion. |
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# |
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# The pid file can be absolute and outside of the chroot, it is |
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# written just prior to performing the chroot and dropping permissions. |
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# |
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# Additionally, unbound may need to access /dev/urandom (for entropy). |
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# How to do this is specific to your OS. |
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# |
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# If you give "" no chroot is performed. The path must not end in a /. |
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# chroot: "/etc/unbound" |
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# if given, user privileges are dropped (after binding port), |
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# and the given username is assumed. Default is user "unbound". |
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# If you give "" no privileges are dropped. |
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# username: "_unbound" |
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# the working directory. The relative files in this config are |
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# relative to this directory. If you give "" the working directory |
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# is not changed. |
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# If you give a server: directory: dir before include: file statements |
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# then those includes can be relative to the working directory. |
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directory: "/etc/unbound" |
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# the log file, "" means log to stderr. |
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# Use of this option sets use-syslog to "no". |
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# logfile: "" |
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# Log to syslog(3) if yes. The log facility LOG_DAEMON is used to |
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# log to. If yes, it overrides the logfile. |
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# use-syslog: yes |
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# Log identity to report. if empty, defaults to the name of argv[0] |
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# (usually "unbound"). |
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# log-identity: "" |
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# print UTC timestamp in ascii to logfile, default is epoch in seconds. |
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# log-time-ascii: no |
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# print one line with time, IP, name, type, class for every query. |
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# log-queries: no |
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# print one line per reply, with time, IP, name, type, class, rcode, |
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# timetoresolve, fromcache and responsesize. |
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# log-replies: no |
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# log with tag 'query' and 'reply' instead of 'info' for |
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# filtering log-queries and log-replies from the log. |
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# log-tag-queryreply: no |
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# log the local-zone actions, like local-zone type inform is enabled |
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# also for the other local zone types. |
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# log-local-actions: no |
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# print log lines that say why queries return SERVFAIL to clients. |
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# log-servfail: no |
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# the pid file. Can be an absolute path outside of chroot/work dir. |
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# pidfile: "/run/unbound.pid" |
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# file to read root hints from. |
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# get one from https://www.internic.net/domain/named.cache |
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root-hints: "root.hints" |
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# enable to not answer id.server and hostname.bind queries. |
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hide-identity: yes |
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# enable to not answer version.server and version.bind queries. |
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hide-version: yes |
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# enable to not answer trustanchor.unbound queries. |
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# hide-trustanchor: no |
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# the identity to report. Leave "" or default to return hostname. |
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identity: "Hellkom" |
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# the version to report. Leave "" or default to return package version. |
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# version: "" |
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# the target fetch policy. |
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# series of integers describing the policy per dependency depth. |
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# The number of values in the list determines the maximum dependency |
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# depth the recursor will pursue before giving up. Each integer means: |
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# -1 : fetch all targets opportunistically, |
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# 0: fetch on demand, |
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# positive value: fetch that many targets opportunistically. |
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# Enclose the list of numbers between quotes (""). |
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# target-fetch-policy: "3 2 1 0 0" |
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# Harden against very small EDNS buffer sizes. |
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harden-short-bufsize: yes |
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# Harden against unseemly large queries. |
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harden-large-queries: yes |
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# Harden against out of zone rrsets, to avoid spoofing attempts. |
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harden-glue: yes |
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# Harden against receiving dnssec-stripped data. If you turn it |
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# off, failing to validate dnskey data for a trustanchor will |
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# trigger insecure mode for that zone (like without a trustanchor). |
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# Default on, which insists on dnssec data for trust-anchored zones. |
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# harden-dnssec-stripped: yes |
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# Harden against queries that fall under dnssec-signed nxdomain names. |
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harden-below-nxdomain: no |
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# Harden the referral path by performing additional queries for |
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# infrastructure data. Validates the replies (if possible). |
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# Default off, because the lookups burden the server. Experimental |
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# implementation of draft-wijngaards-dnsext-resolver-side-mitigation. |
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# harden-referral-path: no |
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# Harden against algorithm downgrade when multiple algorithms are |
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# advertised in the DS record. If no, allows the weakest algorithm |
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# to validate the zone. |
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# harden-algo-downgrade: no |
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# Sent minimum amount of information to upstream servers to enhance |
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# privacy. Only sent minimum required labels of the QNAME and set QTYPE |
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# to A when possible. |
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qname-minimisation: yes |
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# QNAME minimisation in strict mode. Do not fall-back to sending full |
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# QNAME to potentially broken nameservers. A lot of domains will not be |
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# resolvable when this option in enabled. |
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# This option only has effect when qname-minimisation is enabled. |
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qname-minimisation-strict: no |
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# Aggressive NSEC uses the DNSSEC NSEC chain to synthesize NXDOMAIN |
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# and other denials, using information from previous NXDOMAINs answers. |
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aggressive-nsec: yes |
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# Use 0x20-encoded random bits in the query to foil spoof attempts. |
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# This feature is an experimental implementation of draft dns-0x20. |
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# use-caps-for-id: no |
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# Domains (and domains in them) without support for dns-0x20 and |
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# the fallback fails because they keep sending different answers. |
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# caps-whitelist: "licdn.com" |
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# caps-whitelist: "senderbase.org" |
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# Enforce privacy of these addresses. Strips them away from answers. |
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# It may cause DNSSEC validation to additionally mark it as bogus. |
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# Protects against 'DNS Rebinding' (uses browser as network proxy). |
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# Only 'private-domain' and 'local-data' names are allowed to have |
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# these private addresses. No default. |
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# private-address: 10.0.0.0/8 |
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# private-address: 172.16.0.0/12 |
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private-address: 192.168.0.0/16 |
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# private-address: 169.254.0.0/16 |
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# private-address: fd00::/8 |
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# private-address: fe80::/10 |
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# private-address: ::ffff:0:0/96 |
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# Allow the domain (and its subdomains) to contain private addresses. |
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# local-data statements are allowed to contain private addresses too. |
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#private-domain: "void.local" |
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# If nonzero, unwanted replies are not only reported in statistics, |
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# but also a running total is kept per thread. If it reaches the |
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# threshold, a warning is printed and a defensive action is taken, |
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# the cache is cleared to flush potential poison out of it. |
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# A suggested value is 10000000, the default is 0 (turned off). |
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# unwanted-reply-threshold: 0 |
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# Do not query the following addresses. No DNS queries are sent there. |
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# List one address per entry. List classless netblocks with /size, |
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# do-not-query-address: 127.0.0.1/8 |
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# do-not-query-address: ::1 |
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# if yes, the above default do-not-query-address entries are present. |
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# if no, localhost can be queried (for testing and debugging). |
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do-not-query-localhost: yes |
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# if yes, perform prefetching of almost expired message cache entries. |
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prefetch: yes |
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# if yes, perform key lookups adjacent to normal lookups. |
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prefetch-key: yes |
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# deny queries of type ANY with an empty response. |
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# deny-any: no |
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# if yes, Unbound rotates RRSet order in response. |
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rrset-roundrobin: yes |
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# if yes, Unbound doesn't insert authority/additional sections |
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# into response messages when those sections are not required. |
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minimal-responses: yes |
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# true to disable DNSSEC lameness check in iterator. |
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disable-dnssec-lame-check: yes |
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# module configuration of the server. A string with identifiers |
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# separated by spaces. Syntax: "[dns64] [validator] iterator" |
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# most modules have to be listed at the beginning of the line, |
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# except cachedb(just before iterator), and python (at the beginning, |
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# or, just before the iterator). |
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# module-config: "validator iterator" |
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# File with trusted keys, kept uptodate using RFC5011 probes, |
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# initial file like trust-anchor-file, then it stores metadata. |
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# Use several entries, one per domain name, to track multiple zones. |
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# |
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# If you want to perform DNSSEC validation, run unbound-anchor before |
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# you start unbound (i.e. in the system boot scripts). And enable: |
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# Please note usage of unbound-anchor root anchor is at your own risk |
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# and under the terms of our LICENSE (see that file in the source). |
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# auto-trust-anchor-file: "/etc/dns/root.key" |
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# trust anchor signaling sends a RFC8145 key tag query after priming. |
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# trust-anchor-signaling: yes |
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# Root key trust anchor sentinel (draft-ietf-dnsop-kskroll-sentinel) |
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# root-key-sentinel: yes |
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# File with DLV trusted keys. Same format as trust-anchor-file. |
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# There can be only one DLV configured, it is trusted from root down. |
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# DLV is going to be decommissioned. Please do not use it any more. |
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# dlv-anchor-file: "dlv.isc.org.key" |
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# File with trusted keys for validation. Specify more than one file |
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# with several entries, one file per entry. |
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# Zone file format, with DS and DNSKEY entries. |
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# Note this gets out of date, use auto-trust-anchor-file please. |
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trust-anchor-file: "trusted-key.key" |
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# Trusted key for validation. DS or DNSKEY. specify the RR on a |
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# single line, surrounded by "". TTL is ignored. class is IN default. |
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# Note this gets out of date, use auto-trust-anchor-file please. |
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# (These examples are from August 2007 and may not be valid anymore). |
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# trust-anchor: "nlnetlabs.nl. DNSKEY 257 3 5 AQPzzTWMz8qSWIQlfRnPckx2BiVmkVN6LPupO3mbz7FhLSnm26n6iG9N Lby97Ji453aWZY3M5/xJBSOS2vWtco2t8C0+xeO1bc/d6ZTy32DHchpW 6rDH1vp86Ll+ha0tmwyy9QP7y2bVw5zSbFCrefk8qCUBgfHm9bHzMG1U BYtEIQ==" |
|
# trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A" |
|
|
|
# File with trusted keys for validation. Specify more than one file |
|
# with several entries, one file per entry. Like trust-anchor-file |
|
# but has a different file format. Format is BIND-9 style format, |
|
# the trusted-keys { name flag proto algo "key"; }; clauses are read. |
|
# you need external update procedures to track changes in keys. |
|
# trusted-keys-file: "" |
|
|
|
# Ignore chain of trust. Domain is treated as insecure. |
|
# domain-insecure: "example.com" |
|
|
|
# Override the date for validation with a specific fixed date. |
|
# Do not set this unless you are debugging signature inception |
|
# and expiration. "" or "0" turns the feature off. -1 ignores date. |
|
# val-override-date: "" |
|
|
|
# The time to live for bogus data, rrsets and messages. This avoids |
|
# some of the revalidation, until the time interval expires. in secs. |
|
# val-bogus-ttl: 60 |
|
|
|
# The signature inception and expiration dates are allowed to be off |
|
# by 10% of the signature lifetime (expir-incep) from our local clock. |
|
# This leeway is capped with a minimum and a maximum. In seconds. |
|
# val-sig-skew-min: 3600 |
|
# val-sig-skew-max: 86400 |
|
|
|
# Should additional section of secure message also be kept clean of |
|
# unsecure data. Useful to shield the users of this validator from |
|
# potential bogus data in the additional section. All unsigned data |
|
# in the additional section is removed from secure messages. |
|
# val-clean-additional: yes |
|
|
|
# Turn permissive mode on to permit bogus messages. Thus, messages |
|
# for which security checks failed will be returned to clients, |
|
# instead of SERVFAIL. It still performs the security checks, which |
|
# result in interesting log files and possibly the AD bit in |
|
# replies if the message is found secure. The default is off. |
|
# val-permissive-mode: no |
|
|
|
# Ignore the CD flag in incoming queries and refuse them bogus data. |
|
# Enable it if the only clients of unbound are legacy servers (w2008) |
|
# that set CD but cannot validate themselves. |
|
# ignore-cd-flag: no |
|
|
|
# Serve expired responses from cache, with serve-expired-reply-ttl in |
|
# the response, and then attempt to fetch the data afresh. |
|
serve-expired: yes |
|
# |
|
# Limit serving of expired responses to configured seconds after |
|
# expiration. 0 disables the limit. |
|
serve-expired-ttl: 5 |
|
# |
|
# Set the TTL of expired records to the serve-expired-ttl value after a |
|
# failed attempt to retrieve the record from upstream. This makes sure |
|
# that the expired records will be served as long as there are queries |
|
# for it. |
|
serve-expired-ttl-reset: yes |
|
# |
|
# TTL value to use when replying with expired data. |
|
# serve-expired-reply-ttl: 30 |
|
# |
|
# Time in milliseconds before replying to the client with expired data. |
|
# This essentially enables the serve-stale behavior as specified in |
|
# draft-ietf-dnsop-serve-stale-10 that first tries to resolve before |
|
# immediately responding with expired data. 0 disables this behavior. |
|
# A recommended value is 1800. |
|
# serve-expired-client-timeout: 0 |
|
|
|
# Have the validator log failed validations for your diagnosis. |
|
# 0: off. 1: A line per failed user query. 2: With reason and bad IP. |
|
# val-log-level: 0 |
|
|
|
# It is possible to configure NSEC3 maximum iteration counts per |
|
# keysize. Keep this table very short, as linear search is done. |
|
# A message with an NSEC3 with larger count is marked insecure. |
|
# List in ascending order the keysize and count values. |
|
# val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500" |
|
|
|
# instruct the auto-trust-anchor-file probing to add anchors after ttl. |
|
# add-holddown: 2592000 # 30 days |
|
|
|
# instruct the auto-trust-anchor-file probing to del anchors after ttl. |
|
# del-holddown: 2592000 # 30 days |
|
|
|
# auto-trust-anchor-file probing removes missing anchors after ttl. |
|
# If the value 0 is given, missing anchors are not removed. |
|
# keep-missing: 31622400 # 366 days |
|
|
|
# debug option that allows very small holddown times for key rollover, |
|
# otherwise the RFC mandates probe intervals must be at least 1 hour. |
|
# permit-small-holddown: no |
|
|
|
# the amount of memory to use for the key cache. |
|
# plain value in bytes or you can append k, m or G. default is "4Mb". |
|
# key-cache-size: 4m |
|
|
|
# the number of slabs to use for the key cache. |
|
# the number of slabs must be a power of 2. |
|
# more slabs reduce lock contention, but fragment memory usage. |
|
# key-cache-slabs: 4 |
|
|
|
# the amount of memory to use for the negative cache (used for DLV). |
|
# plain value in bytes or you can append k, m or G. default is "1Mb". |
|
# neg-cache-size: 1m |
|
|
|
# By default, for a number of zones a small default 'nothing here' |
|
# reply is built-in. Query traffic is thus blocked. If you |
|
# wish to serve such zone you can unblock them by uncommenting one |
|
# of the nodefault statements below. |
|
# You may also have to use domain-insecure: zone to make DNSSEC work, |
|
# unless you have your own trust anchors for this zone. |
|
# local-zone: "localhost." nodefault |
|
# local-zone: "127.in-addr.arpa." nodefault |
|
# 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 |
|
# local-zone: "onion." nodefault |
|
# local-zone: "test." nodefault |
|
# local-zone: "invalid." nodefault |
|
# local-zone: "10.in-addr.arpa." nodefault |
|
# local-zone: "16.172.in-addr.arpa." nodefault |
|
# local-zone: "17.172.in-addr.arpa." nodefault |
|
# local-zone: "18.172.in-addr.arpa." nodefault |
|
# local-zone: "19.172.in-addr.arpa." nodefault |
|
# local-zone: "20.172.in-addr.arpa." nodefault |
|
# local-zone: "21.172.in-addr.arpa." nodefault |
|
# local-zone: "22.172.in-addr.arpa." nodefault |
|
# local-zone: "23.172.in-addr.arpa." nodefault |
|
# local-zone: "24.172.in-addr.arpa." nodefault |
|
# local-zone: "25.172.in-addr.arpa." nodefault |
|
# local-zone: "26.172.in-addr.arpa." nodefault |
|
# local-zone: "27.172.in-addr.arpa." nodefault |
|
# local-zone: "28.172.in-addr.arpa." nodefault |
|
# local-zone: "29.172.in-addr.arpa." nodefault |
|
# local-zone: "30.172.in-addr.arpa." nodefault |
|
# local-zone: "31.172.in-addr.arpa." nodefault |
|
# local-zone: "168.192.in-addr.arpa." nodefault |
|
# local-zone: "0.in-addr.arpa." nodefault |
|
# local-zone: "254.169.in-addr.arpa." nodefault |
|
# local-zone: "2.0.192.in-addr.arpa." nodefault |
|
# local-zone: "100.51.198.in-addr.arpa." nodefault |
|
# local-zone: "113.0.203.in-addr.arpa." nodefault |
|
# local-zone: "255.255.255.255.in-addr.arpa." nodefault |
|
# 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 |
|
# local-zone: "d.f.ip6.arpa." nodefault |
|
# local-zone: "8.e.f.ip6.arpa." nodefault |
|
# local-zone: "9.e.f.ip6.arpa." nodefault |
|
# local-zone: "a.e.f.ip6.arpa." nodefault |
|
# local-zone: "b.e.f.ip6.arpa." nodefault |
|
# local-zone: "8.b.d.0.1.0.0.2.ip6.arpa." nodefault |
|
# And for 64.100.in-addr.arpa. to 127.100.in-addr.arpa. |
|
|
|
# Add example.com into ipset |
|
# local-zone: "example.com" ipset |
|
|
|
# If unbound is running service for the local host then it is useful |
|
# to perform lan-wide lookups to the upstream, and unblock the |
|
# long list of local-zones above. If this unbound is a dns server |
|
# for a network of computers, disabled is better and stops information |
|
# leakage of local lan information. |
|
# unblock-lan-zones: no |
|
|
|
# The insecure-lan-zones option disables validation for |
|
# these zones, as if they were all listed as domain-insecure. |
|
# insecure-lan-zones: no |
|
|
|
# a number of locally served zones can be configured. |
|
# local-zone: <zone> <type> |
|
# local-data: "<resource record string>" |
|
# o deny serves local data (if any), else, drops queries. |
|
# o refuse serves local data (if any), else, replies with error. |
|
# o static serves local data, else, nxdomain or nodata answer. |
|
# o transparent gives local data, but resolves normally for other names |
|
# o redirect serves the zone data for any subdomain in the zone. |
|
# o nodefault can be used to normally resolve AS112 zones. |
|
# o typetransparent resolves normally for other types and other names |
|
# o inform acts like transparent, but logs client IP address |
|
# o inform_deny drops queries and logs client IP address |
|
# o inform_redirect redirects queries and logs client IP address |
|
# o always_transparent, always_refuse, always_nxdomain, resolve in |
|
# that way but ignore local data for that name |
|
# o noview breaks out of that view towards global local-zones. |
|
# |
|
# defaults are localhost address, reverse for 127.0.0.1 and ::1 |
|
# and nxdomain for AS112 zones. If you configure one of these zones |
|
# the default content is omitted, or you can omit it with 'nodefault'. |
|
# |
|
# If you configure local-data without specifying local-zone, by |
|
# default a transparent local-zone is created for the data. |
|
# |
|
# You can add locally served data with |
|
# local-zone: "local." static |
|
# local-data: "mycomputer.local. IN A 192.0.2.51" |
|
# local-data: 'mytext.local TXT "content of text record"' |
|
local-data: "void.local. IN A 192.168.1.100" |
|
# |
|
# You can override certain queries with |
|
# local-data: "adserver.example.com A 127.0.0.1" |
|
# |
|
# You can redirect a domain to a fixed address with |
|
# (this makes example.com, www.example.com, etc, all go to 192.0.2.3) |
|
# local-zone: "example.com" redirect |
|
# local-data: "example.com A 192.0.2.3" |
|
# |
|
# Shorthand to make PTR records, "IPv4 name" or "IPv6 name". |
|
# You can also add PTR records using local-data directly, but then |
|
# you need to do the reverse notation yourself. |
|
# local-data-ptr: "192.0.2.3 www.example.com" |
|
#local-data-ptr: "192.168.1.100 void.local" |
|
|
|
# tag a localzone with a list of tag names (in "" with spaces between) |
|
# local-zone-tag: "example.com" "tag2 tag3" |
|
|
|
# add a netblock specific override to a localzone, with zone type |
|
# local-zone-override: "example.com" 192.0.2.0/24 refuse |
|
|
|
# service clients over TLS (on the TCP sockets), with plain DNS inside |
|
# the TLS stream. Give the certificate to use and private key. |
|
# default is "" (disabled). requires restart to take effect. |
|
# tls-service-key: "path/to/privatekeyfile.key" |
|
# tls-service-pem: "path/to/publiccertfile.pem" |
|
# tls-port: 853 |
|
|
|
# cipher setting for TLSv1.2 |
|
# 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" |
|
# cipher setting for TLSv1.3 |
|
# 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" |
|
|
|
# Add the secret file for TLS Session Ticket. |
|
# Secret file must be 80 bytes of random data. |
|
# First key use to encrypt and decrypt TLS session tickets. |
|
# Other keys use to decrypt only. |
|
# requires restart to take effect. |
|
# tls-session-ticket-keys: "path/to/secret_file1" |
|
# tls-session-ticket-keys: "path/to/secret_file2" |
|
|
|
# request upstream over TLS (with plain DNS inside the TLS stream). |
|
# Default is no. Can be turned on and off with unbound-control. |
|
# tls-upstream: no |
|
|
|
# Certificates used to authenticate connections made upstream. |
|
tls-cert-bundle: "/etc/ssl/certs/ca-certificates.crt" |
|
|
|
# Add system certs to the cert bundle, from the Windows Cert Store |
|
# tls-win-cert: no |
|
|
|
# Also serve tls on these port numbers (eg. 443, ...), by listing |
|
# tls-additional-port: portno for each of the port numbers. |
|
|
|
# DNS64 prefix. Must be specified when DNS64 is use. |
|
# Enable dns64 in module-config. Used to synthesize IPv6 from IPv4. |
|
# dns64-prefix: 64:ff9b::0/96 |
|
|
|
# DNS64 ignore AAAA records for these domains and use A instead. |
|
# dns64-ignore-aaaa: "example.com" |
|
|
|
# ratelimit for uncached, new queries, this limits recursion effort. |
|
# ratelimiting is experimental, and may help against randomqueryflood. |
|
# if 0(default) it is disabled, otherwise state qps allowed per zone. |
|
# ratelimit: 0 |
|
|
|
# ratelimits are tracked in a cache, size in bytes of cache (or k,m). |
|
# ratelimit-size: 4m |
|
# ratelimit cache slabs, reduces lock contention if equal to cpucount. |
|
# ratelimit-slabs: 4 |
|
|
|
# 0 blocks when ratelimited, otherwise let 1/xth traffic through |
|
# ratelimit-factor: 10 |
|
|
|
# override the ratelimit for a specific domain name. |
|
# give this setting multiple times to have multiple overrides. |
|
# ratelimit-for-domain: example.com 1000 |
|
# override the ratelimits for all domains below a domain name |
|
# can give this multiple times, the name closest to the zone is used. |
|
# ratelimit-below-domain: com 1000 |
|
|
|
# global query ratelimit for all ip addresses. |
|
# feature is experimental. |
|
# if 0(default) it is disabled, otherwise states qps allowed per ip address |
|
# ip-ratelimit: 0 |
|
|
|
# ip ratelimits are tracked in a cache, size in bytes of cache (or k,m). |
|
# ip-ratelimit-size: 4m |
|
# ip ratelimit cache slabs, reduces lock contention if equal to cpucount. |
|
# ip-ratelimit-slabs: 4 |
|
|
|
# 0 blocks when ip is ratelimited, otherwise let 1/xth traffic through |
|
# ip-ratelimit-factor: 10 |
|
|
|
# Limit the number of connections simultaneous from a netblock |
|
# tcp-connection-limit: 192.0.2.0/24 12 |
|
|
|
# select from the fastest servers this many times out of 1000. 0 means |
|
# the fast server select is disabled. prefetches are not sped up. |
|
# fast-server-permil: 0 |
|
# the number of servers that will be used in the fast server selection. |
|
# fast-server-num: 3 |
|
|
|
# Specific options for ipsecmod. unbound needs to be configured with |
|
# --enable-ipsecmod for these to take effect. |
|
# |
|
# Enable or disable ipsecmod (it still needs to be defined in |
|
# module-config above). Can be used when ipsecmod needs to be |
|
# enabled/disabled via remote-control(below). |
|
# ipsecmod-enabled: yes |
|
# |
|
# Path to executable external hook. It must be defined when ipsecmod is |
|
# listed in module-config (above). |
|
# ipsecmod-hook: "./my_executable" |
|
# |
|
# When enabled unbound will reply with SERVFAIL if the return value of |
|
# the ipsecmod-hook is not 0. |
|
# ipsecmod-strict: no |
|
# |
|
# Maximum time to live (TTL) for cached A/AAAA records with IPSECKEY. |
|
# ipsecmod-max-ttl: 3600 |
|
# |
|
# Reply with A/AAAA even if the relevant IPSECKEY is bogus. Mainly used for |
|
# testing. |
|
# ipsecmod-ignore-bogus: no |
|
# |
|
# Domains for which ipsecmod will be triggered. If not defined (default) |
|
# all domains are treated as being whitelisted. |
|
# ipsecmod-whitelist: "example.com" |
|
# ipsecmod-whitelist: "nlnetlabs.nl" |
|
|
|
include: "/etc/unbound/rpz.conf" |
|
#local-zone: "srv.carbonads.net" always_nxdomain |
|
|
|
# Python config section. To enable: |
|
# o use --with-pythonmodule to configure before compiling. |
|
# o list python in the module-config string (above) to enable. |
|
# It can be at the start, it gets validated results, or just before |
|
# the iterator and process before DNSSEC validation. |
|
# o and give a python-script to run. |
|
python: |
|
# Script file to load |
|
# python-script: "/etc/unbound/ubmodule-tst.py" |
|
|
|
# Remote control config section. |
|
remote-control: |
|
# Enable remote control with unbound-control(8) here. |
|
# set up the keys and certificates with unbound-control-setup. |
|
control-enable: yes |
|
|
|
# what interfaces are listened to for remote control. |
|
# give 0.0.0.0 and ::0 to listen to all interfaces. |
|
# set to an absolute path to use a unix local name pipe, certificates |
|
# are not used for that, so key and cert files need not be present. |
|
# control-interface: 127.0.0.1 |
|
# control-interface: ::1 |
|
|
|
# port number for remote control operations. |
|
# control-port: 8953 |
|
|
|
# for localhost, you can disable use of TLS by setting this to "no" |
|
# For local sockets this option is ignored, and TLS is not used. |
|
control-use-cert: "yes" |
|
|
|
# unbound server key file. |
|
server-key-file: "/etc/unbound/unbound_server.key" |
|
|
|
# unbound server certificate file. |
|
server-cert-file: "/etc/unbound/unbound_server.pem" |
|
|
|
# unbound-control key file. |
|
control-key-file: "/etc/unbound/unbound_control.key" |
|
|
|
# unbound-control certificate file. |
|
control-cert-file: "/etc/unbound/unbound_control.pem" |
|
|
|
# Stub zones. |
|
# Create entries like below, to make all queries for 'example.com' and |
|
# 'example.org' go to the given list of nameservers. list zero or more |
|
# nameservers by hostname or by ipaddress. If you set stub-prime to yes, |
|
# the list is treated as priming hints (default is no). |
|
# With stub-first yes, it attempts without the stub if it fails. |
|
# Consider adding domain-insecure: name and local-zone: name nodefault |
|
# to the server: section if the stub is a locally served zone. |
|
# stub-zone: |
|
# name: "example.com" |
|
# stub-addr: 192.0.2.68 |
|
# stub-prime: no |
|
# stub-first: no |
|
# stub-tls-upstream: no |
|
# stub-no-cache: no |
|
# stub-zone: |
|
# name: "example.org" |
|
# stub-host: ns.example.com. |
|
|
|
# Forward zones |
|
# Create entries like below, to make all queries for 'example.com' and |
|
# 'example.org' go to the given list of servers. These servers have to handle |
|
# recursion to other nameservers. List zero or more nameservers by hostname |
|
# or by ipaddress. Use an entry with name "." to forward all queries. |
|
# If you enable forward-first, it attempts without the forward if it fails. |
|
# forward-zone: |
|
# name: "example.com" |
|
# forward-addr: 192.0.2.68 |
|
# forward-addr: 192.0.2.73@5355 # forward to port 5355. |
|
# forward-first: no |
|
# forward-tls-upstream: no |
|
# forward-no-cache: no |
|
# forward-zone: |
|
# name: "example.org" |
|
# forward-host: fwd.example.com |
|
#forward-zone: |
|
# name: "." |
|
# forward-tls-upstream: no |
|
# forward-addr: 45.00.28.0@53#5c39c4.dns1.nextdns.io |
|
# forward-addr: 45.00.30.0@53#5c39c4.dns2.nextdns.io |
|
#forward-addr: 1.0.0.1@53#one.one.one.one |
|
#forward-addr: 1.1.1.1@53#one.one.one.one |
|
#forward-addr: 9.9.9.9@53#dns.quad9.net |
|
#forward-addr: 149.112.112.112@53#dns.quad9.net |
|
|
|
# Authority zones |
|
# The data for these zones is kept locally, from a file or downloaded. |
|
# The data can be served to downstream clients, or used instead of the |
|
# upstream (which saves a lookup to the upstream). The first example |
|
# has a copy of the root for local usage. The second serves example.org |
|
# authoritatively. zonefile: reads from file (and writes to it if you also |
|
# download it), master: fetches with AXFR and IXFR, or url to zonefile. |
|
# With allow-notify: you can give additional (apart from masters) sources of |
|
# notifies. |
|
# auth-zone: |
|
# name: "." |
|
# master: 199.9.14.201 # b.root-servers.net |
|
# master: 192.33.4.12 # c.root-servers.net |
|
# master: 199.7.91.13 # d.root-servers.net |
|
# master: 192.5.5.241 # f.root-servers.net |
|
# master: 192.112.36.4 # g.root-servers.net |
|
# master: 193.0.14.129 # k.root-servers.net |
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# master: 192.0.47.132 # xfr.cjr.dns.icann.org |
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# master: 192.0.32.132 # xfr.lax.dns.icann.org |
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# master: 2001:500:200::b # b.root-servers.net |
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# master: 2001:500:2::c # c.root-servers.net |
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# master: 2001:500:2d::d # d.root-servers.net |
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# master: 2001:500:2f::f # f.root-servers.net |
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# master: 2001:500:12::d0d # g.root-servers.net |
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# master: 2001:7fd::1 # k.root-servers.net |
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# master: 2620:0:2830:202::132 # xfr.cjr.dns.icann.org |
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# master: 2620:0:2d0:202::132 # xfr.lax.dns.icann.org |
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# fallback-enabled: yes |
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# for-downstream: no |
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# for-upstream: yes |
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# auth-zone: |
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# name: "example.org" |
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# for-downstream: yes |
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# for-upstream: yes |
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# zonefile: "example.org.zone" |
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# Views |
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# Create named views. Name must be unique. Map views to requests using |
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# the access-control-view option. Views can contain zero or more local-zone |
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# and local-data options. Options from matching views will override global |
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# options. Global options will be used if no matching view is found. |
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# With view-first yes, it will try to answer using the global local-zone and |
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# local-data elements if there is no view specific match. |
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# view: |
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# name: "viewname" |
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# local-zone: "example.com" redirect |
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# local-data: "example.com A 192.0.2.3" |
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# local-data-ptr: "192.0.2.3 www.example.com" |
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# view-first: no |
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# view: |
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# name: "anotherview" |
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# local-zone: "example.com" refuse |
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# DNSCrypt |
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# Caveats: |
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# 1. the keys/certs cannot be produced by unbound. You can use dnscrypt-wrapper |
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# for this: https://github.com/cofyc/dnscrypt-wrapper/blob/master/README.md#usage |
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# 2. dnscrypt channel attaches to an interface. you MUST set interfaces to |
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# listen on `dnscrypt-port` with the follo0wing snippet: |
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# server: |
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# interface: 0.0.0.0@443 |
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# interface: ::0@443 |
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# |
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# Finally, `dnscrypt` config has its own section. |
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# dnscrypt: |
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# dnscrypt-enable: yes |
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# dnscrypt-port: 443 |
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# dnscrypt-provider: 2.dnscrypt-cert.example.com. |
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# dnscrypt-secret-key: /path/unbound-conf/keys1/1.key |
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# dnscrypt-secret-key: /path/unbound-conf/keys2/1.key |
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# dnscrypt-provider-cert: /path/unbound-conf/keys1/1.cert |
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# dnscrypt-provider-cert: /path/unbound-conf/keys2/1.cert |
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# CacheDB |
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# Enable external backend DB as auxiliary cache. Specify the backend name |
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# (default is "testframe", which has no use other than for debugging and |
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# testing) and backend-specific options. The 'cachedb' module must be |
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# included in module-config, just before the iterator module. |
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# cachedb: |
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# backend: "testframe" |
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# # secret seed string to calculate hashed keys |
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# secret-seed: "default" |
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# |
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# # For "redis" backend: |
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# # redis server's IP address or host name |
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# redis-server-host: 127.0.0.1 |
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# # redis server's TCP port |
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# redis-server-port: 6379 |
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# # timeout (in ms) for communication with the redis server |
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# redis-timeout: 100 |
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# IPSet |
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# Add specify domain into set via ipset. |
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# Note: To enable ipset needs run unbound as root user. |
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# ipset: |
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# # set name for ip v4 addresses |
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# name-v4: "list-v4" |
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# # set name for ip v6 addresses |
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# name-v6: "list-v6" |
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# |
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# Response Policy Zones |
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# RPZ policies. Applied in order of configuration. QNAME and Response IP |
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# Address trigger are the only supported triggers. Supported actions are: |
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# NXDOMAIN, NODATA, PASSTHRU, DROP and Local Data. Policies can be loaded from |
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# file, using zone transfer, or using HTTP. The respip module needs to be added |
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# to the module-config, e.g.: module-config: "respip validator iterator". |
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# rpz: |
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# name: "rpz.example.com" |
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# zonefile: "rpz.example.com" |
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# master: 192.0.2.0 |
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# allow-notify: 192.0.2.0/32 |
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# url: http://www.example.com/rpz.example.org.zone |
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# rpz-action-override: cname |
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# rpz-cname-override: www.example.org |
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# rpz-log: yes |
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# rpz-log-name: "example policy" |
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# tags: "example" |
