bin/dig/nslookup.docbook

	nslookup.docbook revision 83a28ca274521e15086fc39febde507bcc4e145e
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley<!--
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - Copyright (C) 2004-2007, 2010, 2013-2016  Internet Systems Consortium, Inc. ("ISC")
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - This Source Code Form is subject to the terms of the Mozilla Public
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - License, v. 2.0. If a copy of the MPL was not distributed with this
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - file, You can obtain one at http://mozilla.org/MPL/2.0/.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley-->
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley<!--
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - Copyright (c) 1985, 1989
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -    The Regents of the University of California.  All rights reserved.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - Redistribution and use in source and binary forms, with or without
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - modification, are permitted provided that the following conditions
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - are met:
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - 1. Redistributions of source code must retain the above copyright
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -    notice, this list of conditions and the following disclaimer.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - 2. Redistributions in binary form must reproduce the above copyright
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64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -    documentation and/or other materials provided with the distribution.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - 3. Neither the name of the University nor the names of its contributors
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -    may be used to endorse or promote products derived from this software
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley -    without specific prior written permission.
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64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley - SUCH DAMAGE.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley-->
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley<!-- Converted by db4-upgrade version 1.0 -->
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley<refentry xmlns:db="http://docbook.org/ns/docbook" version="5.0" xml:id="man.nslookup">
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <info>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <date>2014-01-24</date>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </info>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refentryinfo>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <corpname>ISC</corpname>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <corpauthor>Internet Systems Consortium, Inc.</corpauthor>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </refentryinfo>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refmeta>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <refentrytitle>nslookup</refentrytitle>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <manvolnum>1</manvolnum>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <refmiscinfo>BIND9</refmiscinfo>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </refmeta>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refnamediv>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <refname>nslookup</refname>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <refpurpose>query Internet name servers interactively</refpurpose>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </refnamediv>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <docinfo>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <copyright>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2004</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2005</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2006</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2007</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2010</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2013</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2014</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2015</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <year>2016</year>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </copyright>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </docinfo>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refsynopsisdiv>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <cmdsynopsis sepchar=" ">
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <command>nslookup</command>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <arg choice="opt" rep="norepeat"><option>-option</option></arg>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <arg choice="opt" rep="norepeat">name | -</arg>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <arg choice="opt" rep="norepeat">server</arg>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </cmdsynopsis>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </refsynopsisdiv>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refsection><info><title>DESCRIPTION</title></info>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <para><command>Nslookup</command>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      is a program to query Internet domain name servers.  <command>Nslookup</command>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      has two modes: interactive and non-interactive.  Interactive mode allows
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      the user to query name servers for information about various hosts and
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      domains or to print a list of hosts in a domain.  Non-interactive mode
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      is
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      used to print just the name and requested information for a host or
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      domain.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </refsection>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refsection><info><title>ARGUMENTS</title></info>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      Interactive mode is entered in the following cases:
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <orderedlist numeration="loweralpha" inheritnum="ignore" continuation="restarts">
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            when no arguments are given (the default name server will be used)
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            when the first argument is a hyphen (-) and the second argument is
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            the host name or Internet address of a name server.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </orderedlist>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      Non-interactive mode is used when the name or Internet address of the
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      host to be looked up is given as the first argument. The optional second
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      argument specifies the host name or address of a name server.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      Options can also be specified on the command line if they precede the
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      arguments and are prefixed with a hyphen.  For example, to
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      change the default query type to host information, and the initial
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      timeout to 10 seconds, type:
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <!-- <informalexample> produces bad nroff. -->
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <programlisting>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elleynslookup -query=hinfo  -timeout=10
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley</programlisting>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <!-- </informalexample> -->
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      The <option>-version</option> option causes
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <command>nslookup</command> to print the version
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      number and immediately exits.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  </refsection>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley  <refsection><info><title>INTERACTIVE COMMANDS</title></info>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley    <variablelist>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>host</constant> <optional>server</optional></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            Look up information for host using the current default server or
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            using server, if specified.  If host is an Internet address and
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            the query type is A or PTR, the name of the host is returned.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            If host is a name and does not have a trailing period, the
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            search list is used to qualify the name.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            To look up a host not in the current domain, append a period to
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            the name.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>server</constant> <replaceable class="parameter">domain</replaceable></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para/>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>lserver</constant> <replaceable class="parameter">domain</replaceable></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            Change the default server to <replaceable>domain</replaceable>; <constant>lserver</constant> uses the initial
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            server to look up information about <replaceable>domain</replaceable>, while <constant>server</constant> uses
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            the current default server.  If an authoritative answer can't be
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            found, the names of servers that might have the answer are
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            returned.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>root</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            not implemented
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>finger</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            not implemented
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>ls</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            not implemented
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>view</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            not implemented
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>help</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            not implemented
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>?</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            not implemented
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>exit</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            Exits the program.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley      <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <term><constant>set</constant>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <replaceable>keyword<optional>=value</optional></replaceable></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley        <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley          <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            This command is used to change state information that affects
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            the lookups.  Valid keywords are:
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley            <variablelist>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley              <varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                <term><constant>all</constant></term>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                <listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                  <para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                    Prints the current values of the frequently used
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                    options to <command>set</command>.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                    Information about the  current default
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                    server and host is also printed.
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                  </para>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley                </listitem>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley              </varlistentry>
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley
64074e584a56611d7563667e0fcdadd215b0c922Yassir Elley              <varlistentry>
                <term><constant>class=</constant><replaceable>value</replaceable></term>
                <listitem>
                  <para>
                    Change the query class to one of:
                    <variablelist>
                      <varlistentry>
                        <term><constant>IN</constant></term>
                        <listitem>
                          <para>
                            the Internet class
                          </para>
                        </listitem>
                      </varlistentry>
                      <varlistentry>
                        <term><constant>CH</constant></term>
                        <listitem>
                          <para>
                            the Chaos class
                          </para>
                        </listitem>
                      </varlistentry>
                      <varlistentry>
                        <term><constant>HS</constant></term>
                        <listitem>
                          <para>
                            the Hesiod class
                          </para>
                        </listitem>
                      </varlistentry>
                      <varlistentry>
                        <term><constant>ANY</constant></term>
                        <listitem>
                          <para>
                            wildcard
                          </para>
                        </listitem>
                      </varlistentry>
                    </variablelist>
                    The class specifies the protocol group of the information.

                  </para>
          <para>
                    (Default = IN; abbreviation = cl)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>
                    <replaceable><optional>no</optional></replaceable>debug</constant></term>
                <listitem>
                  <para>
            Turn on or off the display of the full response packet and
            any intermediate response packets when searching.
                  </para>
          <para>
                    (Default = nodebug; abbreviation = <optional>no</optional>deb)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>
                    <replaceable><optional>no</optional></replaceable>d2</constant></term>
                <listitem>
                  <para>
                    Turn debugging mode on or off.  This displays more about
                what nslookup is doing.
                  </para>
          <para>
                    (Default = nod2)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>domain=</constant><replaceable>name</replaceable></term>
                <listitem>
                  <para>
                    Sets the search list to <replaceable>name</replaceable>.
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>
                    <replaceable><optional>no</optional></replaceable>search</constant></term>
                <listitem>
                  <para>
                    If the lookup request contains at least one period but
                    doesn't end with a trailing period, append the domain
                    names in the domain search list to the request until an
                    answer is received.
                  </para>
          <para>
                    (Default = search)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>port=</constant><replaceable>value</replaceable></term>
                <listitem>
                  <para>
                    Change the default TCP/UDP name server port to <replaceable>value</replaceable>.
                  </para>
          <para>
                    (Default = 53; abbreviation = po)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>querytype=</constant><replaceable>value</replaceable></term>
                <listitem>
                  <para/>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>type=</constant><replaceable>value</replaceable></term>
                <listitem>
                  <para>
                    Change the type of the information query.
                  </para>
          <para>
                    (Default = A; abbreviations = q, ty)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>
                    <replaceable><optional>no</optional></replaceable>recurse</constant></term>
                <listitem>
                  <para>
                    Tell the name server to query other servers if it does not
                    have the
                    information.
                  </para>
          <para>
                    (Default = recurse; abbreviation = [no]rec)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>ndots=</constant><replaceable>number</replaceable></term>
                <listitem>
                  <para>
            Set the number of dots (label separators) in a domain
            that will disable searching.  Absolute names always
            stop searching.
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>retry=</constant><replaceable>number</replaceable></term>
                <listitem>
                  <para>
                    Set the number of retries to number.
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>timeout=</constant><replaceable>number</replaceable></term>
                <listitem>
                  <para>
                    Change the initial timeout interval for waiting for a
                    reply to number seconds.
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>
                    <replaceable><optional>no</optional></replaceable>vc</constant></term>
                <listitem>
                  <para>
                    Always use a virtual circuit when sending requests to the
                    server.
                  </para>
          <para>
                    (Default = novc)
                  </para>
                </listitem>
              </varlistentry>

              <varlistentry>
                <term><constant>
                    <replaceable><optional>no</optional></replaceable>fail</constant></term>
                <listitem>
                  <para>
            Try the next nameserver if a nameserver responds with
            SERVFAIL or a referral (nofail) or terminate query
            (fail) on such a response.
          </para>
          <para>
                    (Default = nofail)
                  </para>
            </listitem>
          </varlistentry>

            </variablelist>
          </para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsection>

  <refsection><info><title>RETURN VALUES</title></info>
    <para>
      <command>nslookup</command> returns with an exit status of 1
      if any query failed, and 0 otherwise.
    </para>
  </refsection>

  <refsection><info><title>FILES</title></info>

    <para><filename>/etc/resolv.conf</filename>
    </para>
  </refsection>

  <refsection><info><title>SEE ALSO</title></info>

    <para><citerefentry>
        <refentrytitle>dig</refentrytitle><manvolnum>1</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>host</refentrytitle><manvolnum>1</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>named</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>.
    </para>
  </refsection>
</refentry>