dig.docbook revision 79a1c7502d0d1c5e654d9892c948d0123c3b3e2f
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deb4998ba50060c48cce222fd18a8eed053918d7vboxsync "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync [<!ENTITY mdash "—">]>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - Copyright (C) 2004-2011, 2013 Internet Systems Consortium, Inc. ("ISC")
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - Copyright (C) 2000-2003 Internet Software Consortium.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - Permission to use, copy, modify, and/or distribute this software for any
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - purpose with or without fee is hereby granted, provided that the above
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - copyright notice and this permission notice appear in all copies.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - PERFORMANCE OF THIS SOFTWARE.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync<!-- $Id: dig.docbook,v 1.51 2011/11/04 11:02:50 jreed Exp $ -->
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refentryinfo>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refentryinfo>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refnamediv>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refnamediv>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <copyright>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </copyright>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <copyright>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </copyright>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refsynopsisdiv>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <cmdsynopsis>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-b <replaceable class="parameter">address</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-c <replaceable class="parameter">class</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-f <replaceable class="parameter">filename</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-k <replaceable class="parameter">filename</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-p <replaceable class="parameter">port#</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-q <replaceable class="parameter">name</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-t <replaceable class="parameter">type</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-x <replaceable class="parameter">addr</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg><option>-y <replaceable class="parameter"><optional>hmac:</optional>name:key</replaceable></option></arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </cmdsynopsis>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <cmdsynopsis>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </cmdsynopsis>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <cmdsynopsis>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <arg choice="opt" rep="repeat">global-queryopt</arg>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </cmdsynopsis>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsynopsisdiv>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync (domain information groper) is a flexible tool
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync for interrogating DNS name servers. It performs DNS lookups and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync displays the answers that are returned from the name server(s) that
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync were queried. Most DNS administrators use <command>dig</command> to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync troubleshoot DNS problems because of its flexibility, ease of use and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync clarity of output. Other lookup tools tend to have less functionality
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Although <command>dig</command> is normally used with
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync command-line
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync arguments, it also has a batch mode of operation for reading lookup
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync requests from a file. A brief summary of its command-line arguments
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync and options is printed when the <option>-h</option> option is given.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Unlike earlier versions, the BIND 9 implementation of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> allows multiple lookups to be issued
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync command line.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Unless it is told to query a specific name server,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> will try each of the servers listed in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <filename>/etc/resolv.conf</filename>. If no usable server addresses
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync are found, <command>dig</command> will send the query to the local
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync When no command line arguments or options are given,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> will perform an NS query for "." (the root).
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync It is possible to set per-user defaults for <command>dig</command> via
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <filename>${HOME}/.digrc</filename>. This file is read and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync any options in it
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync are applied before the command line arguments.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The IN and CH class names overlap with the IN and CH top level
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync domain names. Either use the <option>-t</option> and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>-c</option> options to specify the type and class,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync use the <option>-q</option> the specify the domain name, or
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync use "IN." and "CH." when looking up these top level domains.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync A typical invocation of <command>dig</command> looks like:
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <programlisting> dig @server name type </programlisting>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <variablelist>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync is the name or IP address of the name server to query. This
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync can be an IPv4 address in dotted-decimal notation or an IPv6
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync address in colon-delimited notation. When the supplied
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>server</parameter> argument is a hostname,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> resolves that name before querying
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync that name server.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync address is found there, it queries the name server at
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync that address. If either of the <option>-4</option> or
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync only addresses for the corresponding transport
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync will be tried. If no usable addresses are found,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync local host. The reply from the name server that
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync responds is displayed.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync is the name of the resource record that is to be looked up.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync indicates what type of query is required —
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync ANY, A, MX, SIG, etc.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync type. If no
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> will perform a lookup for an
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </variablelist>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The <option>-b</option> option sets the source IP address of the query
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync to <parameter>address</parameter>. This must be a valid
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync one of the host's network interfaces or "0.0.0.0" or "::". An optional
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync may be specified by appending "#<port>"
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The default query class (IN for internet) is overridden by the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>-c</option> option. <parameter>class</parameter> is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync class, such as HS for Hesiod records or CH for Chaosnet records.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The <option>-f</option> option makes <command>dig </command>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync in batch mode by reading a list of lookup requests to process from the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync file <parameter>filename</parameter>. The file contains a
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync queries, one per line. Each entry in the file should be organized in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the same way they would be presented as queries to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> using the command-line interface.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The <option>-m</option> option enables memory usage debugging.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <!-- It enables ISC_MEM_DEBUGTRACE and ISC_MEM_DEBUGRECORD
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync documented in include/isc/mem.h -->
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync If a non-standard port number is to be queried, the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>-p</option> option is used. <parameter>port#</parameter> is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the port number that <command>dig</command> will send its
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync instead of the standard DNS port number 53. This option would be used
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync to test a name server that has been configured to listen for queries
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync on a non-standard port number.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The <option>-4</option> option forces <command>dig</command>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync use IPv4 query transport. The <option>-6</option> option forces
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> to only use IPv6 query transport.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The <option>-t</option> option sets the query type to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>type</parameter>. It can be any valid query type
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync supported in BIND 9. The default query type is "A", unless the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>-x</option> option is supplied to indicate a reverse lookup.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync A zone transfer can be requested by specifying a type of AXFR. When
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync an incremental zone transfer (IXFR) is required,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>type</parameter> is set to <literal>ixfr=N</literal>.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The incremental zone transfer will contain the changes made to the zone
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync since the serial number in the zone's SOA record was
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The <option>-q</option> option sets the query name to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>name</parameter>. This is useful to distinguish the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Reverse lookups — mapping addresses to names — are simplified by the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>-x</option> option. <parameter>addr</parameter> is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync address in dotted-decimal notation, or a colon-delimited IPv6 address.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync When this option is used, there is no need to provide the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>name</parameter>, <parameter>class</parameter> and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>type</parameter> arguments. <command>dig</command>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync automatically performs a lookup for a name like
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <literal>11.12.13.10.in-addr.arpa</literal> and sets the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync query type and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync class to PTR and IN respectively. By default, IPv6 addresses are
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync looked up using nibble format under the IP6.ARPA domain.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync To use the older RFC1886 method using the IP6.INT domain
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync specify the <option>-i</option> option. Bit string labels (RFC2874)
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync are now experimental and are not attempted.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync To sign the DNS queries sent by <command>dig</command> and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync responses using transaction signatures (TSIG), specify a TSIG key file
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync using the <option>-k</option> option. You can also specify the TSIG
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync key itself on the command line using the <option>-y</option> option;
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>hmac</parameter> is the type of the TSIG, default HMAC-MD5,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>name</parameter> is the name of the TSIG key and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>key</parameter> is the actual key. The key is a
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync encoded string, typically generated by
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <citerefentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </citerefentry>.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Caution should be taken when using the <option>-y</option> option on
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync multi-user systems as the key can be visible in the output from
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <citerefentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </citerefentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync or in the shell's history file. When
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync using TSIG authentication with <command>dig</command>, the name
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync server that is queried needs to know the key and algorithm that is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync being used. In BIND, this is done by providing appropriate
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>key</command> and <command>server</command> statements in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync provides a number of query options which affect
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the way in which lookups are made and the results displayed. Some of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync these set or reset flag bits in the query header, some determine which
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync sections of the answer get printed, and others determine the timeout
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync and retry strategies.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Each query option is identified by a keyword preceded by a plus sign
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync (<literal>+</literal>). Some keywords set or reset an
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync option. These may be preceded
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync by the string <literal>no</literal> to negate the meaning of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync that keyword. Other
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync keywords assign values to options like the timeout interval. They
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The query options are:
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <variablelist>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Use [do not use] TCP when querying name servers. The default
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync behavior is to use UDP unless an AXFR or IXFR query is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync requested, in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync which case a TCP connection is used.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Use [do not use] TCP when querying name servers. This alternate
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync provided for backwards
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync compatibility. The "vc" stands for "virtual circuit".
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Ignore truncation in UDP responses instead of retrying with TCP.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync default, TCP retries are performed.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Set the search list to contain the single domain
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>somename</parameter>, as if specified in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync search list
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync processing as if the <parameter>+search</parameter>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync option were given.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Use [do not use] the search list defined by the searchlist or
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The search list is not used by default.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Perform [do not perform] a search showing intermediate
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Deprecated, treated as a synonym for <parameter>+[no]search</parameter>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Sets the "aa" flag in the query.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Set [do not set] the AD (authentic data) bit in the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync query. This requests the server to return whether
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync all of the answer and authority sections have all
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync been validated as secure according to the security
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync policy of the server. AD=1 indicates that all records
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync have been validated as secure and the answer is not
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync from a OPT-OUT range. AD=0 indicate that some part
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync of the answer was insecure or not validated. This
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync bit is set by default.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Set [do not set] the CD (checking disabled) bit in the query.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync requests the server to not perform DNSSEC validation of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Display [do not display] the CLASS when printing the record.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Display [do not display] the TTL when printing the record.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Toggle the setting of the RD (recursion desired) bit
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync in the query. This bit is set by default, which means
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync queries. Recursion is automatically disabled when
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>+trace</parameter> query options are used.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync attempts to find the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync authoritative name servers for the zone containing the name
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync looked up and display the SOA record that each name server has
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Toggle tracing of the delegation path from the root
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync name servers for the name being looked up. Tracing
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync is disabled by default. When tracing is enabled,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync resolve the name being looked up. It will follow
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync referrals from the root servers, showing the answer
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync from each server that was used to resolve the lookup.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>+dnssec</command> is also set when +trace is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync set to better emulate the default queries from a nameserver.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Toggles the printing of the initial comment in the output
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync identifying
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the version of <command>dig</command> and the query
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync options that have
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync been applied. This comment is printed by default.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Provide a terse answer. The default is to print the answer in a
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync verbose form.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Show [or do not show] the IP address and port number that
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync supplied the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync answer when the <parameter>+short</parameter> option
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync is enabled. If
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync short form answers are requested, the default is not to show the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync source address and port number of the server that provided the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Toggle the display of comment lines in the output. The default
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync is to print comments.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Toggle the display of per-record comments in the output (for
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync example, human-readable key information about DNSKEY records).
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The default is not to print record comments unless multiline
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync mode is active.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Toggle the display of cryptographic fields in DNSSEC records.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The contents of these field are unnecessary to debug most DNSSEC
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync validation failures and removing them makes it easier to see
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the common failures. The default is to display the fields.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync When omitted they are replaced by the string "[omitted]" or
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync in the DNSKEY case the key id is displayed as the replacement,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync e.g. "[ key id = value ]".
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Split long hex- or base64-formatted fields in resource
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync records into chunks of <parameter>W</parameter> characters
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync (where <parameter>W</parameter> is rounded up to the nearest
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync multiple of 4).
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>+split=0</parameter> causes fields not to be
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync split at all. The default is 56 characters, or 44 characters
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync when multiline mode is active.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync This query option toggles the printing of statistics: when the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync was made, the size of the reply and so on. The default
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync behavior is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync to print the query statistics.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Print [do not print] the query as it is sent.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync By default, the query is not printed.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Print [do not print] the question section of a query when an
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync returned. The default is to print the question section as a
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Display [do not display] the answer section of a reply. The
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync is to display it.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Display [do not display] the authority section of a reply. The
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync default is to display it.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Display [do not display] the additional section of a reply.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The default is to display it.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Set or clear all display flags.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Sets the timeout for a query to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync timeout is 5 seconds.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync than 1 will result
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync in a query timeout of 1 second being applied.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Sets the number of times to try UDP queries to server to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>T</parameter> instead of the default, 3.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync zero, the number of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync tries is silently rounded up to 1.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Sets the number of times to retry UDP queries to server to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>T</parameter> instead of the default, 2.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>+tries</parameter>, this does not include
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the initial
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Set the number of dots that have to appear in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>name</parameter> to <parameter>D</parameter> for it to be
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync considered absolute. The default value is that defined using
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync ndots statement in <filename>/etc/resolv.conf</filename>, or 1 if no
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync ndots statement is present. Names with fewer dots are
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync interpreted as
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync relative names and will be searched for in the domains listed in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>search</option> or <option>domain</option> directive in
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Set the UDP message buffer size advertised using EDNS0 to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>B</parameter> bytes. The maximum and minimum sizes
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync of this buffer are 65535 and 0 respectively. Values outside
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync this range are rounded up or down appropriately.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Values other than zero will cause a EDNS query to be sent.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Specify the EDNS version to query with. Valid values
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync are 0 to 255. Setting the EDNS version will cause
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync clears the remembered EDNS version. EDNS is set to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync 0 by default.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Print records like the SOA records in a verbose multi-line
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync format with human-readable comments. The default is to print
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync each record on a single line, to facilitate machine parsing
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Print only one (starting) SOA record when performing
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync an AXFR. The default is to print both the starting and
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync ending SOA records.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Do not try the next server if you receive a SERVFAIL. The
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync to not try the next server which is the reverse of normal stub
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Attempt to display the contents of messages which are malformed.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The default is to not display malformed answers.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Requests DNSSEC records be sent by setting the DNSSEC OK bit
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync in the OPT record in the additional section of the query.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Chase DNSSEC signature chains. Requires dig be compiled with
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync -DDIG_SIGCHASE.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Specifies a file containing trusted keys to be used with
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <option>+sigchase</option>. Each DNSKEY record must be
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync on its own line.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync If not specified, <command>dig</command> will look for
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <filename>trusted-key.key</filename> in the current directory.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Requires dig be compiled with -DDIG_SIGCHASE.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync When chasing DNSSEC signature chains perform a top-down
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync validation.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Requires dig be compiled with -DDIG_SIGCHASE.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Include an EDNS name server ID request when sending a query.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync Keep the TCP socket open between queries and reuse it rather
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync than creating a new TCP socket for each lookup. The default
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </listitem>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </varlistentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </variablelist>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The BIND 9 implementation of <command>dig </command>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync specifying multiple queries on the command line (in addition to
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync supporting the <option>-f</option> batch file option). Each of those
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync queries can be supplied with its own set of flags, options and query
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync In this case, each <parameter>query</parameter> argument
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync represent an
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync individual query in the command-line syntax described above. Each
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync consists of any of the standard options and flags, the name to be
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync looked up, an optional query type and class and any query options that
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync should be applied to that query.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync A global set of query options, which should be applied to all queries,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync can also be supplied. These global query options must precede the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync first tuple of name, class, type, options, flags, and query options
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync supplied on the command line. Any global query options (except
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync overridden by a query-specific set of query options. For example:
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <programlisting>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsyncdig +qr www.isc.org any -x 127.0.0.1 isc.org ns +noqr
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync</programlisting>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync shows how <command>dig</command> could be used from the
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync command line
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync to make three lookups: an ANY query for <literal>www.isc.org</literal>, a
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync reverse lookup of 127.0.0.1 and a query for the NS records of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync A global query option of <parameter>+qr</parameter> is
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync applied, so
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync that <command>dig</command> shows the initial query it made
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync lookup. The final query has a local query option of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <parameter>+noqr</parameter> which means that <command>dig</command>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync will not print the initial query when it looks up the NS records for
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync If <command>dig</command> has been built with IDN (internationalized
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync domain name) support, it can accept and display non-ASCII domain names.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <command>dig</command> appropriately converts character encoding of
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync domain name before sending a request to DNS server or displaying a
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync reply from the server.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync If you'd like to turn off the IDN support for some reason, defines
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync the <envar>IDN_DISABLE</envar> environment variable.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync The IDN support is disabled if the variable is set when
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refentrytitle>host</refentrytitle><manvolnum>1</manvolnum>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </citerefentry>,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <citerefentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refentrytitle>named</refentrytitle><manvolnum>8</manvolnum>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </citerefentry>,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <citerefentry>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </citerefentry>,
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync There are probably too many query options.
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync </refsect1>
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - Local variables:
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync - mode: sgml