Date: Fri, 22 May 2026 20:52:54 +0000 From: Dag-Erling=?utf-8?Q? Sm=C3=B8rg?=rav <des@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 22fa41b4e81a - main - unbound: Update to 1.24.2 Message-ID: <6a10c226.1cf19.1b9ad872@gitrepo.freebsd.org>
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The branch main has been updated by des: URL: https://cgit.FreeBSD.org/src/commit/?id=22fa41b4e81ad91d11e28f1837764730d744d4e4 commit 22fa41b4e81ad91d11e28f1837764730d744d4e4 Merge: 290190b26c09 ec5b94f552d7 Author: Dag-Erling Smørgrav <des@FreeBSD.org> AuthorDate: 2026-05-22 20:16:26 +0000 Commit: Dag-Erling Smørgrav <des@FreeBSD.org> CommitDate: 2026-05-22 20:16:26 +0000 unbound: Update to 1.24.2 Merge commit 'ec5b94f552d7cb2a9d456c67e9941bcf5e3698bf' This is purely cosmetic as we already had the functional changes. MFC after: 1 week contrib/unbound/config.h.in | 10 +- contrib/unbound/configure | 4673 ++++++++++++++++------------ contrib/unbound/configure.ac | 3 +- contrib/unbound/doc/README | 2 +- contrib/unbound/doc/example.conf | 2 +- contrib/unbound/doc/example.conf.in | 2 +- contrib/unbound/doc/libunbound.3 | 4 +- contrib/unbound/doc/libunbound.3.in | 4 +- contrib/unbound/doc/unbound-anchor.8 | 4 +- contrib/unbound/doc/unbound-anchor.8.in | 4 +- contrib/unbound/doc/unbound-checkconf.8 | 4 +- contrib/unbound/doc/unbound-checkconf.8.in | 4 +- contrib/unbound/doc/unbound-control.8 | 4 +- contrib/unbound/doc/unbound-control.8.in | 4 +- contrib/unbound/doc/unbound-host.1 | 4 +- contrib/unbound/doc/unbound-host.1.in | 4 +- contrib/unbound/doc/unbound.8 | 4 +- contrib/unbound/doc/unbound.8.in | 4 +- contrib/unbound/doc/unbound.conf.5 | 4 +- contrib/unbound/doc/unbound.conf.5.in | 4 +- lib/libunbound/config.h | 16 +- 21 files changed, 2774 insertions(+), 1990 deletions(-) diff --cc contrib/unbound/doc/example.conf index 56bb3247b20e,000000000000..ba9fee412d7b mode 100644,000000..100644 --- a/contrib/unbound/doc/example.conf +++ b/contrib/unbound/doc/example.conf @@@ -1,1424 -1,0 +1,1424 @@@ +# +# Example configuration file. +# - # See unbound.conf(5) man page, version 1.24.1. ++# See unbound.conf(5) man page, version 1.24.2. +# +# this is a comment. + +# Use this anywhere in the file to include other text into this file. +#include: "otherfile.conf" + +# Use this anywhere in the file to include other text, that explicitly starts a +# clause, into this file. Text after this directive needs to start a clause. +#include-toplevel: "otherfile.conf" + +# The server clause sets the main parameters. +server: + # whitespace is not necessary, but looks cleaner. + + # verbosity number, 0 is least verbose. 1 is default. + # verbosity: 1 + + # print statistics to the log (for every thread) every N seconds. + # Set to "" or 0 to disable. Default is disabled. + # statistics-interval: 0 + + # enable shm for stats, default no. if you enable also enable + # statistics-interval, every time it also writes stats to the + # shared memory segment keyed with shm-key. + # shm-enable: no + + # shm for stats uses this key, and key+1 for the shared mem segment. + # shm-key: 11777 + + # enable cumulative statistics, without clearing them after printing. + # statistics-cumulative: no + + # enable extended statistics (query types, answer codes, status) + # printed from unbound-control. Default off, because of speed. + # extended-statistics: no + + # Inhibits selected extended statistics (qtype, qclass, qopcode, rcode, + # rpz-actions) from printing if their value is 0. + # Default on. + # statistics-inhibit-zero: yes + + # number of threads to create. 1 disables threading. + # num-threads: 1 + + # specify the interfaces to answer queries from by ip-address. + # The default is to listen to localhost (127.0.0.1 and ::1). + # specify 0.0.0.0 and ::0 to bind to all available interfaces. + # specify every interface[@port] on a new 'interface:' labelled line. + # The listen interfaces are not changed on reload, only on restart. + # interface: 192.0.2.153 + # interface: 192.0.2.154 + # interface: 192.0.2.154@5003 + # interface: 2001:DB8::5 + # interface: eth0@5003 + + # enable this feature to copy the source address of queries to reply. + # Socket options are not supported on all platforms. experimental. + # interface-automatic: no + + # instead of the default port, open additional ports separated by + # spaces when interface-automatic is enabled, by listing them here. + # interface-automatic-ports: "" + + # port to answer queries from + # port: 53 + + # specify the interfaces to send outgoing queries to authoritative + # server from by ip-address. If none, the default (all) interface + # is used. Specify every interface on a 'outgoing-interface:' line. + # outgoing-interface: 192.0.2.153 + # outgoing-interface: 2001:DB8::5 + # outgoing-interface: 2001:DB8::6 + + # Specify a netblock to use remainder 64 bits as random bits for + # upstream queries. Uses freebind option (Linux). + # outgoing-interface: 2001:DB8::/64 + # Also (Linux:) ip -6 addr add 2001:db8::/64 dev lo + # And: ip -6 route add local 2001:db8::/64 dev lo + # And set prefer-ip6: yes to use the ip6 randomness from a netblock. + # Set this to yes to prefer ipv6 upstream servers over ipv4. + # prefer-ip6: no + + # Prefer ipv4 upstream servers, even if ipv6 is available. + # prefer-ip4: no + + # number of ports to allocate per thread, determines the size of the + # port range that can be open simultaneously. About double the + # num-queries-per-thread, or, use as many as the OS will allow you. + # outgoing-range: 4096 + + # permit Unbound to use this port number or port range for + # making outgoing queries, using an outgoing interface. + # outgoing-port-permit: 32768 + + # deny Unbound the use this of port number or port range for + # making outgoing queries, using an outgoing interface. + # Use this to make sure Unbound does not grab a UDP port that some + # other server on this computer needs. The default is to avoid + # IANA-assigned port numbers. + # If multiple outgoing-port-permit and outgoing-port-avoid options + # are present, they are processed in order. + # outgoing-port-avoid: "3200-3208" + + # number of outgoing simultaneous tcp buffers to hold per thread. + # outgoing-num-tcp: 10 + + # number of incoming simultaneous tcp buffers to hold per thread. + # incoming-num-tcp: 10 + + # buffer size for UDP port 53 incoming (SO_RCVBUF socket option). + # 0 is system default. Use 4m to catch query spikes for busy servers. + # so-rcvbuf: 0 + + # buffer size for UDP port 53 outgoing (SO_SNDBUF socket option). + # 0 is system default. Set larger to handle spikes on very busy servers. + # so-sndbuf: 4m + + # use SO_REUSEPORT to distribute queries over threads. + # at extreme load it could be better to turn it off to distribute even. + # so-reuseport: yes + + # use IP_TRANSPARENT so the interface: addresses can be non-local + # and you can config non-existing IPs that are going to work later on + # (uses IP_BINDANY on FreeBSD). + # ip-transparent: no + + # use IP_FREEBIND so the interface: addresses can be non-local + # and you can bind to nonexisting IPs and interfaces that are down. + # Linux only. On Linux you also have ip-transparent that is similar. + # ip-freebind: no + + # the value of the Differentiated Services Codepoint (DSCP) + # in the differentiated services field (DS) of the outgoing + # IP packets + # ip-dscp: 0 + + # EDNS reassembly buffer to advertise to UDP peers (the actual buffer + # is set with msg-buffer-size). + # edns-buffer-size: 1232 + + # Maximum UDP response size (not applied to TCP response). + # Suggested values are 512 to 4096. Default is 1232. 65536 disables it. + # max-udp-size: 1232 + + # max memory to use for stream(tcp and tls) waiting result buffers. + # stream-wait-size: 4m + + # buffer size for handling DNS data. No messages larger than this + # size can be sent or received, by UDP or TCP. In bytes. + # msg-buffer-size: 65552 + + # the amount of memory to use for the message cache. + # plain value in bytes or you can append k, m or G. default is "4Mb". + # msg-cache-size: 4m + + # the number of slabs to use for the message cache. + # the number of slabs must be a power of 2. + # more slabs reduce lock contention, but fragment memory usage. + # msg-cache-slabs: 4 + + # the number of queries that a thread gets to service. + # num-queries-per-thread: 2048 + + # if very busy, 50% queries run to completion, 50% get timeout in msec + # jostle-timeout: 200 + + # msec to wait before close of port on timeout UDP. 0 disables. + # delay-close: 0 + + # perform connect for UDP sockets to mitigate ICMP side channel. + # udp-connect: yes + + # The number of retries, per upstream nameserver in a delegation, when + # a throwaway response (also timeouts) is received. + # outbound-msg-retry: 5 + + # Hard limit on the number of outgoing queries Unbound will make while + # resolving a name, making sure large NS sets do not loop. + # It resets on query restarts (e.g., CNAME) and referrals. + # max-sent-count: 32 + + # Hard limit on the number of times Unbound is allowed to restart a + # query upon encountering a CNAME record. + # max-query-restarts: 11 + + # Limit on number of NS records in NS RRset for incoming packets. + # iter-scrub-ns: 20 + + # Limit on number of CNAME, DNAME records for incoming packets. + # iter-scrub-cname: 11 + + # Limit on upstream queries for an incoming query and its recursion. + # max-global-quota: 200 + + # Should the scrubber remove promiscuous NS from positive answers, + # protects against poison attempts. + # iter-scrub-promiscuous: yes + + # msec for waiting for an unknown server to reply. Increase if you + # are behind a slow satellite link, to eg. 1128. + # unknown-server-time-limit: 376 + + # msec before recursion replies are dropped. The work item continues. + # discard-timeout: 1900 + + # Max number of replies waiting for recursion per IP address. + # wait-limit: 1000 + + # Max replies waiting for recursion for IP address with cookie. + # wait-limit-cookie: 10000 + + # Apart from the default, the wait limit can be set for a netblock. + # wait-limit-netblock: 192.0.2.0/24 50000 + + # Apart from the default, the wait limit with cookie can be adjusted. + # wait-limit-cookie-netblock: 192.0.2.0/24 50000 + + # Defaults for loopback, it has no wait limit. + # wait-limit-netblock: 127.0.0.0/8 -1 + # wait-limit-netblock: ::1/128 -1 + # wait-limit-cookie-netblock: 127.0.0.0/8 -1 + # wait-limit-cookie-netblock: ::1/128 -1 + + # the amount of memory to use for the RRset cache. + # plain value in bytes or you can append k, m or G. default is "4Mb". + # rrset-cache-size: 4m + + # the number of slabs to use for the RRset cache. + # the number of slabs must be a power of 2. + # more slabs reduce lock contention, but fragment memory usage. + # rrset-cache-slabs: 4 + + # the time to live (TTL) value lower bound, in seconds. Default 0. + # If more than an hour could easily give trouble due to stale data. + # cache-min-ttl: 0 + + # the time to live (TTL) value cap for RRsets and messages in the + # cache. Items are not cached for longer. In seconds. + # cache-max-ttl: 86400 + + # the time to live (TTL) value cap for negative responses in the cache + # cache-max-negative-ttl: 3600 + + # the time to live (TTL) value lower bound, in seconds. Default 0. + # For negative responses in the cache. If disabled, default, + # cache-min-ttl applies if configured. + # cache-min-negative-ttl: 0 + + # the time to live (TTL) value for cached roundtrip times, lameness and + # EDNS version information for hosts. In seconds. + # infra-host-ttl: 900 + + # minimum wait time for responses, increase if uplink is long. In msec. + # infra-cache-min-rtt: 50 + + # maximum wait time for responses. In msec. + # infra-cache-max-rtt: 120000 + + # enable to make server probe down hosts more frequently. + # infra-keep-probing: no + + # the number of slabs to use for the Infrastructure cache. + # the number of slabs must be a power of 2. + # more slabs reduce lock contention, but fragment memory usage. + # infra-cache-slabs: 4 + + # the maximum number of hosts that are cached (roundtrip, EDNS, lame). + # infra-cache-numhosts: 10000 + + # define a number of tags here, use with local-zone, access-control, + # interface-*. + # repeat the define-tag statement to add additional tags. + # define-tag: "tag1 tag2 tag3" + + # Enable IPv4, "yes" or "no". + # do-ip4: yes + + # Enable IPv6, "yes" or "no". + # do-ip6: yes + + # If running unbound on an IPv6-only host, domains that only have + # IPv4 servers would become unresolvable. If NAT64 is available in + # the network, unbound can use NAT64 to reach these servers with + # the following option. This is NOT needed for enabling DNS64 on a + # system that has IPv4 connectivity. + # Consider also enabling prefer-ip6 to prefer native IPv6 connections + # to nameservers. + # do-nat64: no + + # NAT64 prefix. Defaults to using dns64-prefix value. + # nat64-prefix: 64:ff9b::0/96 + + # Enable UDP, "yes" or "no". + # do-udp: yes + + # Enable TCP, "yes" or "no". + # do-tcp: yes + + # upstream connections use TCP only (and no UDP), "yes" or "no" + # useful for tunneling scenarios, default no. + # tcp-upstream: no + + # upstream connections also use UDP (even if do-udp is no). + # useful if if you want UDP upstream, but don't provide UDP downstream. + # udp-upstream-without-downstream: no + + # Maximum segment size (MSS) of TCP socket on which the server + # responds to queries. Default is 0, system default MSS. + # tcp-mss: 0 + + # Maximum segment size (MSS) of TCP socket for outgoing queries. + # Default is 0, system default MSS. + # outgoing-tcp-mss: 0 + + # Idle TCP timeout, connection closed in milliseconds + # tcp-idle-timeout: 30000 + + # Enable EDNS TCP keepalive option. + # edns-tcp-keepalive: no + + # Timeout for EDNS TCP keepalive, in msec. Overrides tcp-idle-timeout + # if edns-tcp-keepalive is set. + # edns-tcp-keepalive-timeout: 120000 + + # UDP queries that have waited in the socket buffer for a long time + # can be dropped. Default is 0, disabled. In seconds, such as 3. + # sock-queue-timeout: 0 + + # Use systemd socket activation for UDP, TCP, and control sockets. + # use-systemd: no + + # Detach from the terminal, run in background, "yes" or "no". + # Set the value to "no" when Unbound runs as systemd service. + # do-daemonize: yes + + # control which clients are allowed to make (recursive) queries + # to this server. Specify classless netblocks with /size and action. + # By default everything is refused, except for localhost. + # Choose deny (drop message), refuse (polite error reply), + # allow (recursive ok), allow_setrd (recursive ok, rd bit is forced on), + # allow_snoop (recursive and nonrecursive ok) + # allow_cookie (allow UDP with valid cookie or stateful transport) + # deny_non_local (drop queries unless can be answered from local-data) + # refuse_non_local (like deny_non_local but polite error reply). + # access-control: 127.0.0.0/8 allow + # access-control: ::1 allow + # access-control: ::ffff:127.0.0.1 allow + + # tag access-control with list of tags (in "" with spaces between) + # Clients using this access control element use localzones that + # are tagged with one of these tags. + # access-control-tag: 192.0.2.0/24 "tag2 tag3" + + # set action for particular tag for given access control element. + # if you have multiple tag values, the tag used to lookup the action + # is the first tag match between access-control-tag and local-zone-tag + # where "first" comes from the order of the define-tag values. + # access-control-tag-action: 192.0.2.0/24 tag3 refuse + + # set redirect data for particular tag for access control element + # access-control-tag-data: 192.0.2.0/24 tag2 "A 127.0.0.1" + + # Set view for access control element + # access-control-view: 192.0.2.0/24 viewname + + # Similar to 'access-control:' but for interfaces. + # Control which listening interfaces are allowed to accept (recursive) + # queries for this server. + # The specified interfaces should be the same as the ones specified in + # 'interface:' followed by the action. + # The actions are the same as 'access-control:' above. + # By default all the interfaces configured are refused. + # Note: any 'access-control*:' setting overrides all 'interface-*:' + # settings for targeted clients. + # interface-action: 192.0.2.153 allow + # interface-action: 192.0.2.154 allow + # interface-action: 192.0.2.154@5003 allow + # interface-action: 2001:DB8::5 allow + # interface-action: eth0@5003 allow + + # Similar to 'access-control-tag:' but for interfaces. + # Tag interfaces with a list of tags (in "" with spaces between). + # Interfaces using these tags use localzones that are tagged with one + # of these tags. + # The specified interfaces should be the same as the ones specified in + # 'interface:' followed by the list of tags. + # Note: any 'access-control*:' setting overrides all 'interface-*:' + # settings for targeted clients. + # interface-tag: eth0@5003 "tag2 tag3" + + # Similar to 'access-control-tag-action:' but for interfaces. + # Set action for particular tag for a given interface element. + # If you have multiple tag values, the tag used to lookup the action + # is the first tag match between interface-tag and local-zone-tag + # where "first" comes from the order of the define-tag values. + # The specified interfaces should be the same as the ones specified in + # 'interface:' followed by the tag and action. + # Note: any 'access-control*:' setting overrides all 'interface-*:' + # settings for targeted clients. + # interface-tag-action: eth0@5003 tag3 refuse + + # Similar to 'access-control-tag-data:' but for interfaces. + # Set redirect data for a particular tag for an interface element. + # The specified interfaces should be the same as the ones specified in + # 'interface:' followed by the tag and the redirect data. + # Note: any 'access-control*:' setting overrides all 'interface-*:' + # settings for targeted clients. + # interface-tag-data: eth0@5003 tag2 "A 127.0.0.1" + + # Similar to 'access-control-view:' but for interfaces. + # Set view for an interface element. + # The specified interfaces should be the same as the ones specified in + # 'interface:' followed by the view name. + # Note: any 'access-control*:' setting overrides all 'interface-*:' + # settings for targeted clients. + # interface-view: eth0@5003 viewname + + # if given, a chroot(2) is done to the given directory. + # i.e. you can chroot to the working directory, for example, + # for extra security, but make sure all files are in that directory. + # + # If chroot is enabled, you should pass the configfile (from the + # commandline) as a full path from the original root. After the + # chroot has been performed the now defunct portion of the config + # file path is removed to be able to reread the config after a reload. + # + # All other file paths (working dir, logfile, roothints, and + # key files) can be specified in several ways: + # o as an absolute path relative to the new root. + # o as a relative path to the working directory. + # o as an absolute path relative to the original root. + # In the last case the path is adjusted to remove the unused portion. + # + # The pid file can be absolute and outside of the chroot, it is + # written just prior to performing the chroot and dropping permissions. + # + # Additionally, Unbound may need to access /dev/urandom (for entropy). + # How to do this is specific to your OS. + # + # If you give "" no chroot is performed. The path must not end in a /. + # chroot: "/var/unbound" + + # if given, user privileges are dropped (after binding port), + # and the given username is assumed. Default is user "unbound". + # If you give "" no privileges are dropped. + # username: "unbound" + + # the working directory. The relative files in this config are + # relative to this directory. If you give "" the working directory + # is not changed. + # If you give a server: directory: dir before include: file statements + # then those includes can be relative to the working directory. + # directory: "/var/unbound" + + # the log file, "" means log to stderr. + # Use of this option sets use-syslog to "no". + # logfile: "" + + # Log to syslog(3) if yes. The log facility LOG_DAEMON is used to + # log to. If yes, it overrides the logfile. + # use-syslog: yes + + # Log identity to report. if empty, defaults to the name of argv[0] + # (usually "unbound"). + # log-identity: "" + + # print UTC timestamp in ascii to logfile, default is epoch in seconds. + # log-time-ascii: no + + # log timestamp in ISO8601 format if also log-time-ascii is enabled. + # (y-m-dTh:m:s.msec[+-]tzhours:tzminutes) + # log-time-iso: no + + # print one line with time, IP, name, type, class for every query. + # log-queries: no + + # print one line per reply, with time, IP, name, type, class, rcode, + # timetoresolve, fromcache and responsesize. + # log-replies: no + + # log with tag 'query' and 'reply' instead of 'info' for + # filtering log-queries and log-replies from the log. + # log-tag-queryreply: no + + # log with destination address, port and type for log-replies. + # log-destaddr: no + + # log the local-zone actions, like local-zone type inform is enabled + # also for the other local zone types. + # log-local-actions: no + + # print log lines that say why queries return SERVFAIL to clients. + # log-servfail: no + + # the pid file. Can be an absolute path outside of chroot/work dir. + # pidfile: "/var/unbound/unbound.pid" + + # file to read root hints from. + # get one from https://www.internic.net/domain/named.cache + # root-hints: "" + + # enable to not answer id.server and hostname.bind queries. + # hide-identity: no + + # enable to not answer version.server and version.bind queries. + # hide-version: no + + # enable to not answer trustanchor.unbound queries. + # hide-trustanchor: no + + # enable to not set the User-Agent HTTP header. + # hide-http-user-agent: no + + # the identity to report. Leave "" or default to return hostname. + # identity: "" + + # the version to report. Leave "" or default to return package version. + # version: "" + + # NSID identity (hex string, or "ascii_somestring"). default disabled. + # nsid: "aabbccdd" + + # User-Agent HTTP header to use. Leave "" or default to use package name + # and version. + # http-user-agent: "" + + # the target fetch policy. + # series of integers describing the policy per dependency depth. + # The number of values in the list determines the maximum dependency + # depth the recursor will pursue before giving up. Each integer means: + # -1 : fetch all targets opportunistically, + # 0: fetch on demand, + # positive value: fetch that many targets opportunistically. + # Enclose the list of numbers between quotes (""). + # target-fetch-policy: "3 2 1 0 0" + + # Harden against very small EDNS buffer sizes. + # harden-short-bufsize: yes + + # Harden against unseemly large queries. + # harden-large-queries: no + + # Harden against out of zone rrsets, to avoid spoofing attempts. + # harden-glue: yes + + # Harden against unverified (outside-zone, including sibling zone) glue rrsets + # harden-unverified-glue: no + + # Harden against receiving dnssec-stripped data. If you turn it + # off, failing to validate dnskey data for a trustanchor will + # trigger insecure mode for that zone (like without a trustanchor). + # Default on, which insists on dnssec data for trust-anchored zones. + # harden-dnssec-stripped: yes + + # Harden against queries that fall under dnssec-signed nxdomain names. + # harden-below-nxdomain: yes + + # Harden the referral path by performing additional queries for + # infrastructure data. Validates the replies (if possible). + # Default off, because the lookups burden the server. Experimental + # implementation of draft-wijngaards-dnsext-resolver-side-mitigation. + # harden-referral-path: no + + # Harden against algorithm downgrade when multiple algorithms are + # advertised in the DS record. If no, allows any algorithm + # to validate the zone which is the standard behavior for validators. + # Check the manpage for detailed information. + # harden-algo-downgrade: no + + # Harden against unknown records in the authority section and the + # additional section. + # harden-unknown-additional: no + + # Sent minimum amount of information to upstream servers to enhance + # privacy. Only sent minimum required labels of the QNAME and set QTYPE + # to A when possible. + # qname-minimisation: yes + + # QNAME minimisation in strict mode. Do not fall-back to sending full + # QNAME to potentially broken nameservers. A lot of domains will not be + # resolvable when this option in enabled. + # This option only has effect when qname-minimisation is enabled. + # qname-minimisation-strict: no + + # Aggressive NSEC uses the DNSSEC NSEC chain to synthesize NXDOMAIN + # and other denials, using information from previous NXDOMAINs answers. + # aggressive-nsec: yes + + # Use 0x20-encoded random bits in the query to foil spoof attempts. + # This feature is an experimental implementation of draft dns-0x20. + # use-caps-for-id: no + + # Domains (and domains in them) without support for dns-0x20 and + # the fallback fails because they keep sending different answers. + # caps-exempt: "licdn.com" + # caps-exempt: "senderbase.org" + + # Enforce privacy of these addresses. Strips them away from answers. + # It may cause DNSSEC validation to additionally mark it as bogus. + # Protects against 'DNS Rebinding' (uses browser as network proxy). + # Only 'private-domain' and 'local-data' names are allowed to have + # these private addresses. No default. + # private-address: 10.0.0.0/8 + # private-address: 172.16.0.0/12 + # private-address: 192.168.0.0/16 + # private-address: 169.254.0.0/16 + # private-address: fd00::/8 + # private-address: fe80::/10 + # private-address: ::ffff:0:0/96 + + # Allow the domain (and its subdomains) to contain private addresses. + # local-data statements are allowed to contain private addresses too. + # private-domain: "example.com" + + # If nonzero, unwanted replies are not only reported in statistics, + # but also a running total is kept per thread. If it reaches the + # threshold, a warning is printed and a defensive action is taken, + # the cache is cleared to flush potential poison out of it. + # A suggested value is 10000000, the default is 0 (turned off). + # unwanted-reply-threshold: 0 + + # Do not query the following addresses. No DNS queries are sent there. + # List one address per entry. List classless netblocks with /size, + # do-not-query-address: 127.0.0.1/8 + # do-not-query-address: ::1 + + # if yes, the above default do-not-query-address entries are present. + # if no, localhost can be queried (for testing and debugging). + # do-not-query-localhost: yes + + # if yes, perform prefetching of almost expired message cache entries. + # prefetch: no + + # if yes, perform key lookups adjacent to normal lookups. + # prefetch-key: no + + # deny queries of type ANY with an empty response. + # deny-any: no + + # if yes, Unbound rotates RRSet order in response. + # rrset-roundrobin: yes + + # if yes, Unbound doesn't insert authority/additional sections + # into response messages when those sections are not required. + # minimal-responses: yes + + # true to disable DNSSEC lameness check in iterator. + # disable-dnssec-lame-check: no + + # module configuration of the server. A string with identifiers + # separated by spaces. Syntax: "[dns64] [validator] iterator" + # most modules have to be listed at the beginning of the line, + # except cachedb(just before iterator), and python (at the beginning, + # or, just before the iterator). + # module-config: "validator iterator" + + # File with trusted keys, kept uptodate using RFC5011 probes, + # initial file like trust-anchor-file, then it stores metadata. + # Use several entries, one per domain name, to track multiple zones. + # + # If you want to perform DNSSEC validation, run unbound-anchor before + # you start Unbound (i.e. in the system boot scripts). + # And then enable the auto-trust-anchor-file config item. + # Please note usage of unbound-anchor root anchor is at your own risk + # and under the terms of our LICENSE (see that file in the source). + # auto-trust-anchor-file: "/var/unbound/root.key" + + # trust anchor signaling sends a RFC8145 key tag query after priming. + # trust-anchor-signaling: yes + + # Root key trust anchor sentinel (draft-ietf-dnsop-kskroll-sentinel) + # root-key-sentinel: yes + + # File with trusted keys for validation. Specify more than one file + # with several entries, one file per entry. + # Zone file format, with DS and DNSKEY entries. + # Note this gets out of date, use auto-trust-anchor-file please. + # trust-anchor-file: "" + + # Trusted key for validation. DS or DNSKEY. specify the RR on a + # single line, surrounded by "". TTL is ignored. class is IN default. + # Note this gets out of date, use auto-trust-anchor-file please. + # (These examples are from August 2007 and may not be valid anymore). + # 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 + + # The maximum number the validator should restart validation with + # another authority in case of failed validation. + # val-max-restart: 5 + + # 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 + + # Disable the DO flag in outgoing requests. It is helpful for upstream + # devices that cannot handle DNSSEC information. But do not enable it + # otherwise, because it would stop DNSSEC validation. + # disable-edns-do: no + + # Serve expired responses from cache, with serve-expired-reply-ttl in + # the response. By default it first tries to refresh an expired answer. + # Can be configured with serve-expired-client-timeout. + # serve-expired: no + # + # Limit serving of expired responses to configured seconds after + # expiration. 0 disables the limit. + # serve-expired-ttl: 86400 + # + # 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: no + # + # 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 + # RFC 8767 that first tries to resolve before immediately responding + # with expired data. 0 disables this behavior. + # serve-expired-client-timeout: 1800 + + # Return the original TTL as received from the upstream name server rather + # than the decrementing TTL as stored in the cache. Enabling this feature + # does not impact cache expiry, it only changes the TTL Unbound embeds in + # responses to queries. Note that enabling this feature implicitly disables + # enforcement of the configured minimum and maximum TTL. + # serve-original-ttl: no + + # 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 150 4096 150" + + # if enabled, ZONEMD verification failures do not block the zone. + # zonemd-permissive-mode: no + + # 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. + # 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: "home.arpa." nodefault + # local-zone: "resolver.arpa." nodefault + # local-zone: "service.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, always_nodata, + # always_deny resolve in that way but ignore local data for + # that name + # o block_a resolves all records normally but returns + # NODATA for A queries and ignores local data for that name + # o always_null returns 0.0.0.0 or ::0 for any name in the zone. + # 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"' + # + # 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" + + # 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, and over HTTPS using HTTP/2 as specified in RFC8484. + # 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 + # https-port: 443 + # quic-port: 853 + + # cipher setting for TLSv1.2 *** 10617 LINES SKIPPED ***home | help
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