nslookup.docbook revision 74e0971044bfdee8a3a01c3e014d691cd4837cb6
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN">
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - Permission to use, copy, modify, and distribute this software for any
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - purpose with or without fee is hereby granted, provided that the above
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - copyright notice and this permission notice appear in all copies.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<!-- $Id: nslookup.docbook,v 1.5 2004/08/30 00:54:45 marka Exp $ -->
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - Copyright (c) 1985, 1989
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - The Regents of the University of California. All rights reserved.
88c800932dd7053322501ea2039d9f234be6866cKlaus Luettich - Redistribution and use in source and binary forms, with or without
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - modification, are permitted provided that the following conditions
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - 1. Redistributions of source code must retain the above copyright
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - notice, this list of conditions and the following disclaimer.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - 2. Redistributions in binary form must reproduce the above copyright
caf544dc9b8f02e05e37786681153f5660e67f64Martin Kühl - notice, this list of conditions and the following disclaimer in the
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - documentation and/or other materials provided with the distribution.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - 3. All advertising materials mentioning features or use of this software
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - must display the following acknowledgement:
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - This product includes software developed by the University of
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - California, Berkeley and its contributors.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - 4. Neither the name of the University nor the names of its contributors
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - may be used to endorse or promote products derived from this software
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - without specific prior written permission.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers - ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder - SUCH DAMAGE.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<refentryinfo>
ebe517300051f765f2ed856a789dd5613d681ab0Klaus Luettich</refentryinfo>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<refpurpose>query Internet name servers interactively</refpurpose>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<refsynopsisdiv>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers</cmdsynopsis>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers</refsynopsisdiv>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckersis a program to query Internet domain name servers. <command>Nslookup</command>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckershas two modes: interactive and non-interactive. Interactive mode allows
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckersthe user to query name servers for information about various hosts and
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckersdomains or to print a list of hosts in a domain. Non-interactive mode is
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckersused to print just the name and requested information for a host or
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian MaederInteractive mode is entered in the following cases:
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus Luettichwhen no arguments are given (the default name server will be used)
b49276c9f50038e0bd499ad49f7bd6444566a834Christian Maederwhen the first argument is a hyphen (-) and the second argument is
88c800932dd7053322501ea2039d9f234be6866cKlaus Luettichthe host name or Internet address of a name server.
b49276c9f50038e0bd499ad49f7bd6444566a834Christian Maeder</OrderedList>
b49276c9f50038e0bd499ad49f7bd6444566a834Christian MaederNon-interactive mode is used when the name or Internet address of the
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maederhost to be looked up is given as the first argument. The optional second
f29371d8bd5a232c974e736b06d0d8a655d320fbKlaus Luettichargument specifies the host name or address of a name server.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian MaederOptions can also be specified on the command line if they precede the
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maederarguments and are prefixed with a hyphen. For example, to
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maederchange the default query type to host information, and the initial timeout to 10 seconds, type:
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<InformalExample>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<PROGRAMLISTING>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maedernslookup -query=hinfo -timeout=10
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder</PROGRAMLISTING>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder</InformalExample>
b391fd2c38849689e02c23dee372739eca29b7b6Christian Maeder<variablelist>
ef67402074be14deb95e4ff564737d5593144130Klaus Luettich<varlistentry><term>host <optional>server</optional></term>
ef67402074be14deb95e4ff564737d5593144130Klaus LuettichLook up information for host using the current default server or
ef67402074be14deb95e4ff564737d5593144130Klaus Luettichusing server, if specified. If host is an Internet address and
19933e754a6a244efca3b63184fb191668e08931Klaus Luettichthe query type is A or PTR, the name of the host is returned.
75cda7e5b890d050d560d970af244a183f28328fKlaus LuettichIf host is a name and does not have a trailing period, the
ef67402074be14deb95e4ff564737d5593144130Klaus Luettichsearch list is used to qualify the name.
1323eba62fc519b068f5aaec4f9d2be05ffabea9Klaus LuettichTo look up a host not in the current domain, append a period to
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<varlistentry><term><constant>server</constant> <replaceable class="parameter">domain</replaceable></term>
ac43fa22d2d3f91a17674ac164cba3cf39a17795Klaus Luettich<listitem><para></para></listitem></varlistentry>
ac43fa22d2d3f91a17674ac164cba3cf39a17795Klaus Luettich<varlistentry><term><constant>lserver</constant> <replaceable class="parameter">domain</replaceable></term>
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus LuettichChange the default server to <replaceable>domain</replaceable>; <constant>lserver</constant> uses the initial
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckersserver to look up information about <replaceable>domain</replaceable>, while <constant>server</constant> uses
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus Luettichthe current default server. If an authoritative answer can't be
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus Luettichfound, the names of servers that might have the answer are
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<varlistentry><term><constant>root</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>not implemented</para></listitem></varlistentry>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<varlistentry><term><constant>finger</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>not implemented</para></listitem></varlistentry>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<varlistentry><term><constant>ls</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>not implemented</para></listitem></varlistentry>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<varlistentry><term><constant>view</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>not implemented</para></listitem></varlistentry>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<varlistentry><term><constant>help</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>not implemented</para></listitem></varlistentry>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<varlistentry><term><constant>?</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>not implemented</para></listitem></varlistentry>
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus Luettich<varlistentry><term><constant>exit</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers<listitem><para>Exits the program.</para></listitem></varlistentry>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<varlistentry><term><constant>set</constant> <replaceable>keyword<optional>=value</optional></replaceable></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<listitem><para>This command is used to change state information that affects
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maederthe lookups. Valid keywords are:
b9625461755578f3eed04676d42a63fd2caebd0cChristian Maeder <variablelist>
26f228bf3a3fea810223396e5794c217a79a8d5bChristian Maeder <varlistentry><term><constant>all</constant></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <para>Prints the current values of the frequently used
b9625461755578f3eed04676d42a63fd2caebd0cChristian Maeder options to <command>set</command>. Information about the current default
b9625461755578f3eed04676d42a63fd2caebd0cChristian Maeder server and host is also printed.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder </varlistentry>
d67a33b40578beef2e255a274f89bb9c34aaf056Christian Maeder <varlistentry><term><constant>class=</constant><replaceable>value</replaceable></term>
26f228bf3a3fea810223396e5794c217a79a8d5bChristian Maeder Change the query class to one of:
26f228bf3a3fea810223396e5794c217a79a8d5bChristian Maeder <variablelist>
d67a33b40578beef2e255a274f89bb9c34aaf056Christian Maeder <varlistentry><term><constant>IN</constant></term>
26f228bf3a3fea810223396e5794c217a79a8d5bChristian Maeder <listitem><para>the Internet class</para></listitem></varlistentry>
ba904a15082557e939db689fcfba0c68c9a4f740Christian Maeder <varlistentry><term><constant>CH</constant></term>
ba904a15082557e939db689fcfba0c68c9a4f740Christian Maeder <listitem><para>the Chaos class</para></listitem></varlistentry>
ba904a15082557e939db689fcfba0c68c9a4f740Christian Maeder <varlistentry><term><constant>HS</constant></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <listitem><para>the Hesiod class</para></listitem></varlistentry>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant>ANY</constant></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <listitem><para>wildcard</para></listitem></varlistentry>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder </variablelist>
26f228bf3a3fea810223396e5794c217a79a8d5bChristian Maeder The class specifies the protocol group of the information.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = IN; abbreviation = cl)
75cda7e5b890d050d560d970af244a183f28328fKlaus Luettich </varlistentry>
b9625461755578f3eed04676d42a63fd2caebd0cChristian Maeder <varlistentry><term><constant><replaceable><optional>no</optional></replaceable>debug</constant></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder Turn debugging mode on. A lot more information is
b9625461755578f3eed04676d42a63fd2caebd0cChristian Maeder printed about the packet sent to the server and the
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder resulting answer.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = nodebug; abbreviation = <optional>no</optional>deb)
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant><replaceable><optional>no</optional></replaceable>d2</constant></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder Turn debugging mode on. A lot more information is
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder printed about the packet sent to the server and the
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder resulting answer.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = nod2)
470ca7a2797069ae4b27c34c1b71419f67be1f84Christian Maeder <varlistentry><term><constant>domain=</constant><replaceable>name</replaceable></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder Sets the search list to <replaceable>name</replaceable>.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant><replaceable><optional>no</optional></replaceable>search</constant></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder If the lookup request contains at least one period but
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder doesn't end with a trailing period, append the domain
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder names in the domain search list to the request until an
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder answer is received.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = search)
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant>port=</constant><replaceable>value</replaceable></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder Change the default TCP/UDP name server port to <replaceable>value</replaceable>.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = 53; abbreviation = po)
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant>querytype=</constant><replaceable>value</replaceable></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <listitem><para></para></listitem></varlistentry>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant>type=</constant><replaceable>value</replaceable></term>
b49276c9f50038e0bd499ad49f7bd6444566a834Christian Maeder Change the top of the information query.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = A; abbreviations = q, ty)
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant><replaceable><optional>no</optional></replaceable>recurse</constant></term>
d67a33b40578beef2e255a274f89bb9c34aaf056Christian Maeder Tell the name server to query other servers if it does not have the
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = recurse; abbreviation = [no]rec)
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant>retry=</constant><replaceable>number</replaceable></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder Set the number of retries to number.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder <varlistentry><term><constant>timeout=</constant><replaceable>number</replaceable></term>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder Change the initial timeout interval for waiting for a
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers reply to number seconds.
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers <varlistentry><term><constant><replaceable><optional>no</optional></replaceable>vc</constant></term>
8b0f493ae42bad8b94918cc0957f1af57096cda4Felix Reckers Always use a virtual circuit when sending requests to the server.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder (Default = novc)
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder </variablelist>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder</variablelist>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<citerefentry>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<refentrytitle>dig</refentrytitle><manvolnum>1</manvolnum>
b49276c9f50038e0bd499ad49f7bd6444566a834Christian Maeder</citerefentry>,
d67a33b40578beef2e255a274f89bb9c34aaf056Christian Maeder<citerefentry>
d67a33b40578beef2e255a274f89bb9c34aaf056Christian Maeder<refentrytitle>host</refentrytitle><manvolnum>1</manvolnum>
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus Luettich</citerefentry>,
ba0ec5e897ef99d420c8c14c2374e0f32b7043dbKlaus Luettich<citerefentry>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder<refentrytitle>named</refentrytitle><manvolnum>8</manvolnum>
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian Maeder</citerefentry>.
5191fa24c532d1f67e7a642e9aece65efb8a0975Christian MaederAndrew Cherenson