366 lines
14 KiB
Plaintext
366 lines
14 KiB
Plaintext
#
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#
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# See unbound.conf(5) man page.
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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: "otherfile.conf"
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#
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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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# To enable DNSSEC trust anchors, install the dnssec-keys package and
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# uncomment the line below - note chroot breaks this
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# trusted-keys-file: "/etc/pki/dnssec/allkeys.conf"
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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: 3600
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# enable cumulative statistics, without clearing them after printing.
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# statistics-cumulative: no
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# number of threads to create. 1 disables threading.
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num-threads: 2
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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 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: 2001:DB8::5
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#
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# interface: 0.0.0.0
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# interface: ::0
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# enable this feature to copy the source address of queries to reply.
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# Socket options not be supported on all platforms. experimental.
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# NOTE: Enable this option when specifying interface 0.0.0.0 or ::0
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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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# number of ports to allocate per thread, determines the size of the
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# port range that can be open simultaneously.
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# outgoing-range: 256
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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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# 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 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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# 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 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 for cached roundtrip times and
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# EDNS version information for hosts. In seconds.
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# infra-host-ttl: 900
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# the time to live (TTL) value for cached lame delegations. In sec.
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# infra-lame-ttl: 900
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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 times, EDNS).
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# infra-cache-numhosts: 10000
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# the maximum size of the lame zones cached per host. in bytes.
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# infra-cache-lame-size: 10k
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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: yes
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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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# Detach from the terminal, run in background, "yes" or "no".
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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), allow.
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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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# 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, pidfile, logfile, roothints,
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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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# Additionally, unbound may need to access /dev/random (for entropy)
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# and to /dev/log (if you use syslog) from inside the chroot.
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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: "/var/lib/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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# directory: "/var/lib/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, with identity "unbound". If yes, it overrides the logfile.
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# use-syslog: yes
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# the pid file.
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pidfile: "/var/run/unbound/unbound.pid"
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# file to read root hints from.
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# get one from ftp://FTP.INTERNIC.NET/domain/named.cache
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# root-hints: ""
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# enable to not answer id.server and hostname.bind queries.
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# hide-identity: no
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# enable to not answer version.server and version.bind queries.
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# hide-version: no
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# the identity to report. Leave "" or default to return hostname.
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# identity: ""
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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: no
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# Harden against unseemly large queries.
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# harden-large-queries: no
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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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# Use 0x20-encoded random bits in the query to foil spoof attempts.
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# Disabled by default, because some caching forwarders may not
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# support this (if you have forward-zones). Most authority servers do.
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# This feature is an experimental implementation of draft dns-0x20.
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# It is known that some authority servers do not support 0x20, and
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# resolution will fail for them. A solution is on the TODO list.
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use-caps-for-id: no
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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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# module configuration of the server. A string with identifiers
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# separated by spaces. "iterator" or "validator iterator"
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# module-config: "validator iterator"
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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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# trust-anchor-file: ""
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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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# (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=="
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# trust-anchor: "jelte.nlnetlabs.nl. DS 42860 5 1 14D739EB566D2B1A5E216A0BA4D17FA9B038BE4A"
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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. Like trust-anchor-file
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# but has a different file format. Format is BIND-9 style format,
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# the trusted-keys { name flag proto algo "key"; }; clauses are read.
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# trusted-keys-file: ""
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# Override the date for validation with a specific fixed date.
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# Do not set this unless you are debugging signature inception
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# and expiration. "" or "0" turns the feature off.
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# val-override-date: ""
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# The time to live for bogus data, rrsets and messages. This avoids
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# some of the revalidation, until the time interval expires. in secs.
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# val-bogus-ttl: 900
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# Should additional section of secure message also be kept clean of
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# unsecure data. Useful to shield the users of this validator from
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# potential bogus data in the additional section. All unsigned data
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# in the additional section is removed from secure messages.
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# val-clean-additional: yes
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# Turn permissive mode on to permit bogus messages. Thus, messages
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# for which security checks failed will be returned to clients,
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# instead of SERVFAIL. It still performs the security checks, which
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# result in interesting log files and possibly the AD bit in
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# replies if the message is found secure. The default is off.
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val-permissive-mode: no
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# It is possible to configure NSEC3 maximum iteration counts per
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# keysize. Keep this table very short, as linear search is done.
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# A message with an NSEC3 with larger count is marked insecure.
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# List in ascending order the keysize and count values.
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# val-nsec3-keysize-iterations: "1024 150 2048 500 4096 2500"
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# the amount of memory to use for the key cache.
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# plain value in bytes or you can append k, m or G. default is "4Mb".
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# key-cache-size: 4m
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# the number of slabs to use for the key 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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# key-cache-slabs: 4
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# a number of locally served zones can be configured.
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# local-zone: <zone> <type>
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# local-data: "<resource record string>"
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# o deny serves local data (if any), else, drops queries.
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# o refuse serves local data (if any), else, replies with error.
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# o static serves local data, else, nxdomain or nodata answer.
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# o transparent serves local data, else, resolves normally .
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# o redirect serves the zone data for any subdomain in the zone.
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# o nodefault can be used to normally resolve AS112 zones.
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#
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# defaults are localhost address, reverse for 127.0.0.1 and ::1
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# and nxdomain for AS112 zones. If you configure one of these zones
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# the default content is omitted, or you can omit it with 'nodefault'.
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#
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# If you configure local-data without specifying local-zone, by
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# default a transparent local-zone is created for the data.
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#
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# You can add locally served data with
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# local-zone: "local." static
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# local-data: "mycomputer.local. IN A 192.0.2.51"
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# local-data: 'mytext.local TXT "content of text record"'
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#
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# You can override certain queries with
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# local-data: "adserver.example.com A 127.0.0.1"
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#
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# You can redirect a domain to a fixed address with
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# (this makes example.com, www.example.com, etc, all go to 192.0.2.3)
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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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# Stub zones.
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# Create entries like below, to make all queries for 'example.com' and
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# 'example.org' go to the given list of nameservers. list zero or more
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# nameservers by hostname or by ipaddress.
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# stub-zone:
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# name: "example.com"
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# stub-addr: 192.0.2.68
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# stub-zone:
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# name: "example.org"
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# stub-host: ns.example.com.
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# Forward zones
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# Create entries like below, to make all queries for 'example.com' and
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# 'example.org' go to the given list of servers. These servers have to handle
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# recursion to other nameservers. List zero or more nameservers by hostname
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# or by ipaddress. Use an entry with name "." to forward all queries.
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# forward-zone:
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# name: "example.com"
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# forward-addr: 192.0.2.68
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# forward-addr: 192.0.2.73@5355 # forward to port 5355.
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# forward-zone:
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# name: "example.org"
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# forward-host: fwd.example.com
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