git: 7a789145f88a - main - unbound: Update to 1.26.0

From: Dag-Erling Smørgrav <des_at_FreeBSD.org>
Date: Tue, 04 Aug 2026 18:28:09 UTC
The branch main has been updated by des:

URL: https://cgit.FreeBSD.org/src/commit/?id=7a789145f88a6aceacc59029a0cafe7de7aeefea

commit 7a789145f88a6aceacc59029a0cafe7de7aeefea
Merge: 65349af4422f 84ffc29dc8dd
Author:     Dag-Erling Smørgrav <des@FreeBSD.org>
AuthorDate: 2026-08-04 18:27:21 +0000
Commit:     Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2026-08-04 18:27:21 +0000

    unbound: Update to 1.26.0
    
    Release notes at
            https://community.nlnetlabs.nl/t/unbound-1-26-0-released
    
    Merge commit '84ffc29dc8ddb0c946db5cb3b3c1310bec6a9e6c'

 contrib/unbound/README.md                      |    2 +-
 contrib/unbound/ax_pthread.m4                  |   19 +-
 contrib/unbound/cachedb/cachedb.c              |   11 +
 contrib/unbound/compat/getentropy_osx.c        |  389 +-
 contrib/unbound/compat/inet_pton.c             |   13 +-
 contrib/unbound/config.guess                   |   26 +-
 contrib/unbound/config.h.in                    |  398 +-
 contrib/unbound/config.sub                     |   31 +-
 contrib/unbound/configure                      | 4800 +++++++++------
 contrib/unbound/configure.ac                   |   26 +-
 contrib/unbound/daemon/cachedump.c             |    4 +-
 contrib/unbound/daemon/daemon.c                |   40 +-
 contrib/unbound/daemon/remote.c                |  263 +-
 contrib/unbound/daemon/remote.h                |    8 +-
 contrib/unbound/daemon/stats.c                 |   28 +-
 contrib/unbound/daemon/worker.c                |   41 +-
 contrib/unbound/dns64/dns64.c                  |   67 +-
 contrib/unbound/dnscrypt/dnscrypt.c            |    9 +-
 contrib/unbound/dnstap/dnstap.c                |   53 +-
 contrib/unbound/dnstap/dnstap.h                |    4 +-
 contrib/unbound/dnstap/dtstream.c              |    2 +-
 contrib/unbound/dnstap/unbound-dnstap-socket.c |    6 +-
 contrib/unbound/doc/Changelog                  |  577 ++
 contrib/unbound/doc/README                     |    2 +-
 contrib/unbound/doc/example.conf               |   11 +-
 contrib/unbound/doc/example.conf.in            |   11 +-
 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          |    6 +-
 contrib/unbound/doc/unbound-control.8.in       |    6 +-
 contrib/unbound/doc/unbound-control.rst        |    2 +
 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             |  112 +-
 contrib/unbound/doc/unbound.conf.5.in          |  112 +-
 contrib/unbound/doc/unbound.conf.rst           |   93 +-
 contrib/unbound/edns-subnet/addrtree.c         |    1 +
 contrib/unbound/edns-subnet/subnetmod.c        |    3 +
 contrib/unbound/ipsecmod/ipsecmod-whitelist.c  |    2 +
 contrib/unbound/ipsecmod/ipsecmod.c            |  120 +-
 contrib/unbound/ipset/ipset.c                  |   31 +-
 contrib/unbound/iterator/iter_delegpt.c        |   55 +-
 contrib/unbound/iterator/iter_delegpt.h        |    6 +-
 contrib/unbound/iterator/iter_resptype.c       |   25 +-
 contrib/unbound/iterator/iter_resptype.h       |    6 +-
 contrib/unbound/iterator/iter_scrub.c          |   76 +-
 contrib/unbound/iterator/iter_scrub.h          |    7 +-
 contrib/unbound/iterator/iter_utils.c          |   11 +-
 contrib/unbound/iterator/iter_utils.h          |    3 +
 contrib/unbound/iterator/iterator.c            |   84 +-
 contrib/unbound/iterator/iterator.h            |   18 +
 contrib/unbound/libunbound/context.h           |    2 +
 contrib/unbound/libunbound/libunbound.c        |   17 +
 contrib/unbound/libunbound/libworker.c         |   17 +-
 contrib/unbound/libunbound/remote.h            |   65 +
 contrib/unbound/libunbound/worker.h            |   19 +-
 contrib/unbound/respip/respip.c                |   53 +-
 contrib/unbound/services/authzone.c            |  349 +-
 contrib/unbound/services/authzone.h            |   29 +
 contrib/unbound/services/cache/dns.c           |   14 +-
 contrib/unbound/services/cache/rrset.c         |   21 +-
 contrib/unbound/services/listen_dnsport.c      |   14 +-
 contrib/unbound/services/localzone.c           |   67 +-
 contrib/unbound/services/localzone.h           |    6 +
 contrib/unbound/services/mesh.c                |  193 +-
 contrib/unbound/services/mesh.h                |   43 +-
 contrib/unbound/services/outside_network.c     |   71 +-
 contrib/unbound/services/outside_network.h     |    7 +-
 contrib/unbound/services/rpz.c                 |   50 +-
 contrib/unbound/sldns/keyraw.c                 |   13 +-
 contrib/unbound/sldns/str2wire.c               |   10 +-
 contrib/unbound/smallapp/unbound-anchor.c      |  176 +-
 contrib/unbound/smallapp/unbound-checkconf.c   |  120 +
 contrib/unbound/smallapp/worker_cb.c           |    5 +-
 contrib/unbound/util/config_file.c             |   63 +-
 contrib/unbound/util/config_file.h             |    4 +
 contrib/unbound/util/configlexer.c             | 7662 ++++++++++++------------
 contrib/unbound/util/configlexer.lex           |    2 +
 contrib/unbound/util/configparser.c            | 4201 ++++++-------
 contrib/unbound/util/configparser.h            |   26 +-
 contrib/unbound/util/configparser.y            |  131 +-
 contrib/unbound/util/data/msgencode.c          |    8 +-
 contrib/unbound/util/data/msgparse.c           |    7 +-
 contrib/unbound/util/data/msgreply.c           |   15 +-
 contrib/unbound/util/data/packed_rrset.c       |    9 +-
 contrib/unbound/util/data/packed_rrset.h       |    2 +
 contrib/unbound/util/fptr_wlist.c              |    2 +-
 contrib/unbound/util/fptr_wlist.h              |    2 +-
 contrib/unbound/util/iana_ports.inc            |    4 +
 contrib/unbound/util/module.h                  |   11 +-
 contrib/unbound/util/net_help.c                |   38 +-
 contrib/unbound/util/netevent.c                |  123 +-
 contrib/unbound/util/netevent.h                |    2 +
 contrib/unbound/util/proxy_protocol.c          |   25 +-
 contrib/unbound/util/proxy_protocol.h          |    9 +
 contrib/unbound/util/shm_side/shm_main.c       |    2 +
 contrib/unbound/util/tube.c                    |   20 +
 contrib/unbound/validator/autotrust.c          |   83 +-
 contrib/unbound/validator/val_anchor.c         |   25 +-
 contrib/unbound/validator/val_neg.c            |   27 +-
 contrib/unbound/validator/val_nsec.c           |   32 +-
 contrib/unbound/validator/val_nsec3.c          |   21 +
 contrib/unbound/validator/val_secalgo.c        |    8 +-
 contrib/unbound/validator/val_sigcrypt.c       |   63 +-
 contrib/unbound/validator/val_utils.c          |   37 +-
 contrib/unbound/validator/val_utils.h          |   13 +
 contrib/unbound/validator/validator.c          |   37 +-
 lib/libunbound/config.h                        |  404 +-
 114 files changed, 12866 insertions(+), 9273 deletions(-)

diff --cc contrib/unbound/README.md
index d805e4d0a3d7,000000000000..c9507e53e5e4
mode 100644,000000..100644
--- a/contrib/unbound/README.md
+++ b/contrib/unbound/README.md
@@@ -1,45 -1,0 +1,45 @@@
 +# Unbound
 +
 +[![Github Build Status](https://github.com/NLnetLabs/unbound/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/NLnetLabs/unbound/actions)
 +[![Packaging status](https://repology.org/badge/tiny-repos/unbound.svg)](https://repology.org/project/unbound/versions)
 +[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/unbound.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:unbound)
 +[![Documentation Status](https://readthedocs.org/projects/unbound/badge/?version=latest)](https://unbound.readthedocs.io/en/latest/?badge=latest)
 +[![Mastodon Follow](https://img.shields.io/mastodon/follow/114692612288811644?domain=social.nlnetlabs.nl&style=social)](https://social.nlnetlabs.nl/@nlnetlabs)
 +
 +Unbound is a validating, recursive, caching DNS resolver. It is designed to be
 +fast and lean and incorporates modern features based on open standards. If you
 +have any feedback, we would love to hear from you. Don’t hesitate to
 +[create an issue on Github](https://github.com/NLnetLabs/unbound/issues/new)
- or post a message on the [Unbound mailing list](https://lists.nlnetlabs.nl/mailman/listinfo/unbound-users).
++or post a message on our [community forum](https://community.nlnetlabs.nl/).
 +You can learn more about Unbound by reading our
 +[documentation](https://unbound.docs.nlnetlabs.nl/).
 +
 +## Compiling
 +
 +Make sure you have the C toolchain, OpenSSL and its include files, and libexpat
 +installed.
 +If building from the repository source you also need flex and bison installed.
 +Unbound can be compiled and installed using:
 +
 +```
 +./configure && make && make install
 +```
 +
 +You can use libevent if you want. libevent is useful when using many (e.g.,
 +10000) outgoing ports.
 +Use the `--with-libevent` configure option to compile Unbound with libevent
 +support.
 +
 +If not, the default builtin alternative opens max 256 ports at the same time
 +and is equally capable and a little faster.
 +
 +
 +## Unbound configuration
 +
 +All of Unbound's configuration options are described in the `unbound.conf(5)`
 +man page, which will be installed and is also available on the Unbound
 +[documentation page](https://unbound.docs.nlnetlabs.nl/en/latest/manpages/unbound.conf.html)
 +for the latest version.
 +
 +An example configuration file, with minimal documentation, is located in
 +[doc/example.conf](https://github.com/NLnetLabs/unbound/blob/master/doc/example.conf.in).
diff --cc contrib/unbound/doc/example.conf
index 5d4536a71f6e,000000000000..ad9331489ef7
mode 100644,000000..100644
--- a/contrib/unbound/doc/example.conf
+++ b/contrib/unbound/doc/example.conf
@@@ -1,1455 -1,0 +1,1464 @@@
 +#
 +# Example configuration file.
 +#
- # See unbound.conf(5) man page, version 1.25.2.
++# See unbound.conf(5) man page, version 1.26.0.
 +#
 +# 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 number of RRSIGs for an RRset for incoming packets.
 +	# iter-scrub-rrsig: 8
 +
 +	# 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
 +
 +	# log system-wide Linux thread ID, insted of Unbound's internal thread
 +	# counter. Only on Linux and only when threads are available.
 +	# log-thread-id: 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 up-to-date 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
 +	# non-secure 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.
 +	# Capped by the original TTL of the record.
 +	# 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
 +
*** 14582 LINES SKIPPED ***