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Diffstat (limited to 'bin/dig/host.html')
| -rw-r--r-- | bin/dig/host.html | 71 |
1 files changed, 35 insertions, 36 deletions
diff --git a/bin/dig/host.html b/bin/dig/host.html index a04536afec564..fb8c08f67e4e8 100644 --- a/bin/dig/host.html +++ b/bin/dig/host.html @@ -1,5 +1,5 @@ <!-- - - Copyright (C) 2004, 2005, 2007-2009, 2014 Internet Systems Consortium, Inc. ("ISC") + - Copyright (C) 2004, 2005, 2007-2009, 2014, 2015 Internet Systems Consortium, Inc. ("ISC") - Copyright (C) 2000-2002 Internet Software Consortium. - - Permission to use, copy, modify, and/or distribute this software for any @@ -14,14 +14,13 @@ - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - PERFORMANCE OF THIS SOFTWARE. --> -<!-- $Id$ --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>host</title> -<meta name="generator" content="DocBook XSL Stylesheets V1.71.1"> +<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> </head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"> +<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry"> <a name="man.host"></a><div class="titlepage"></div> <div class="refnamediv"> <h2>Name</h2> @@ -31,34 +30,34 @@ <h2>Synopsis</h2> <div class="cmdsynopsis"><p><code class="command">host</code> [<code class="option">-aCdlnrsTwv</code>] [<code class="option">-c <em class="replaceable"><code>class</code></em></code>] [<code class="option">-N <em class="replaceable"><code>ndots</code></em></code>] [<code class="option">-R <em class="replaceable"><code>number</code></em></code>] [<code class="option">-t <em class="replaceable"><code>type</code></em></code>] [<code class="option">-W <em class="replaceable"><code>wait</code></em></code>] [<code class="option">-m <em class="replaceable"><code>flag</code></em></code>] [<code class="option">-4</code>] [<code class="option">-6</code>] [<code class="option">-v</code>] [<code class="option">-V</code>] {name} [server]</p></div> </div> -<div class="refsect1" lang="en"> -<a name="id2543454"></a><h2>DESCRIPTION</h2> -<p><span><strong class="command">host</strong></span> +<div class="refsection"> +<a name="id-1.7"></a><h2>DESCRIPTION</h2> +<p><span class="command"><strong>host</strong></span> is a simple utility for performing DNS lookups. It is normally used to convert names to IP addresses and vice versa. When no arguments or options are given, - <span><strong class="command">host</strong></span> + <span class="command"><strong>host</strong></span> prints a short summary of its command line arguments and options. </p> <p><em class="parameter"><code>name</code></em> is the domain name that is to be looked up. It can also be a dotted-decimal IPv4 address or a colon-delimited - IPv6 address, in which case <span><strong class="command">host</strong></span> will by + IPv6 address, in which case <span class="command"><strong>host</strong></span> will by default perform a reverse lookup for that address. <em class="parameter"><code>server</code></em> is an optional argument which is either - the name or IP address of the name server that <span><strong class="command">host</strong></span> + the name or IP address of the name server that <span class="command"><strong>host</strong></span> should query instead of the server or servers listed in <code class="filename">/etc/resolv.conf</code>. </p> <p> The <code class="option">-a</code> (all) option is equivalent to setting the - <code class="option">-v</code> option and asking <span><strong class="command">host</strong></span> to make + <code class="option">-v</code> option and asking <span class="command"><strong>host</strong></span> to make a query of type ANY. </p> <p> - When the <code class="option">-C</code> option is used, <span><strong class="command">host</strong></span> + When the <code class="option">-C</code> option is used, <span class="command"><strong>host</strong></span> will attempt to display the SOA records for zone <em class="parameter"><code>name</code></em> from all the listed authoritative name @@ -72,7 +71,7 @@ Chaosnet class resource records. The default class is IN (Internet). </p> <p> - Verbose output is generated by <span><strong class="command">host</strong></span> when + Verbose output is generated by <span class="command"><strong>host</strong></span> when the <code class="option">-d</code> or <code class="option">-v</code> option is used. The two options are equivalent. They have been provided for backwards @@ -82,7 +81,7 @@ </p> <p> List mode is selected by the <code class="option">-l</code> option. This makes - <span><strong class="command">host</strong></span> perform a zone transfer for zone + <span class="command"><strong>host</strong></span> perform a zone transfer for zone <em class="parameter"><code>name</code></em>. Transfer the zone printing out the NS, PTR and address records (A/AAAA). If combined with <code class="option">-a</code> @@ -110,7 +109,7 @@ The number of UDP retries for a lookup can be changed with the <code class="option">-R</code> option. <em class="parameter"><code>number</code></em> indicates - how many times <span><strong class="command">host</strong></span> will repeat a query + how many times <span class="command"><strong>host</strong></span> will repeat a query that does not get answered. The default number of retries is 1. If <em class="parameter"><code>number</code></em> is negative or zero, the @@ -120,39 +119,39 @@ <p> Non-recursive queries can be made via the <code class="option">-r</code> option. Setting this option clears the <span class="type">RD</span> — recursion - desired — bit in the query which <span><strong class="command">host</strong></span> makes. + desired — bit in the query which <span class="command"><strong>host</strong></span> makes. This should mean that the name server receiving the query will not attempt to resolve <em class="parameter"><code>name</code></em>. The - <code class="option">-r</code> option enables <span><strong class="command">host</strong></span> + <code class="option">-r</code> option enables <span class="command"><strong>host</strong></span> to mimic the behavior of a name server by making non-recursive queries and expecting to receive answers to those queries that are usually referrals to other name servers. </p> <p> - By default, <span><strong class="command">host</strong></span> uses UDP when making + By default, <span class="command"><strong>host</strong></span> uses UDP when making queries. The <code class="option">-T</code> option makes it use a TCP connection when querying the name server. TCP will be automatically selected for queries that require it, such as zone transfer (AXFR) requests. </p> <p> - The <code class="option">-4</code> option forces <span><strong class="command">host</strong></span> to only + The <code class="option">-4</code> option forces <span class="command"><strong>host</strong></span> to only use IPv4 query transport. The <code class="option">-6</code> option forces - <span><strong class="command">host</strong></span> to only use IPv6 query transport. + <span class="command"><strong>host</strong></span> to only use IPv6 query transport. </p> <p> The <code class="option">-t</code> option is used to select the query type. <em class="parameter"><code>type</code></em> can be any recognized query type: CNAME, NS, SOA, SIG, KEY, AXFR, etc. When no query type is specified, - <span><strong class="command">host</strong></span> automatically selects an appropriate + <span class="command"><strong>host</strong></span> automatically selects an appropriate query type. By default, it looks for A, AAAA, and MX records, but if the <code class="option">-C</code> option was given, queries will be made for SOA records, and if <em class="parameter"><code>name</code></em> is a dotted-decimal IPv4 - address or colon-delimited IPv6 address, <span><strong class="command">host</strong></span> will + address or colon-delimited IPv6 address, <span class="command"><strong>host</strong></span> will query for PTR records. If a query type of IXFR is chosen the starting serial number can be specified by appending an equal followed by the starting serial number (e.g. -t IXFR=12345678). @@ -160,18 +159,18 @@ <p> The time to wait for a reply can be controlled through the <code class="option">-W</code> and <code class="option">-w</code> options. The - <code class="option">-W</code> option makes <span><strong class="command">host</strong></span> + <code class="option">-W</code> option makes <span class="command"><strong>host</strong></span> wait for <em class="parameter"><code>wait</code></em> seconds. If <em class="parameter"><code>wait</code></em> is less than one, the wait interval is set to one second. When the - <code class="option">-w</code> option is used, <span><strong class="command">host</strong></span> + <code class="option">-w</code> option is used, <span class="command"><strong>host</strong></span> will effectively wait forever for a reply. The time to wait for a response will be set to the number of seconds given by the hardware's maximum value for an integer quantity. </p> <p> - The <code class="option">-s</code> option tells <span><strong class="command">host</strong></span> + The <code class="option">-s</code> option tells <span class="command"><strong>host</strong></span> <span class="emphasis"><em>not</em></span> to send the query to the next nameserver if any server responds with a SERVFAIL response, which is the reverse of normal stub resolver behavior. @@ -183,31 +182,31 @@ <em class="parameter"><code>trace</code></em>. </p> <p> - The <code class="option">-V</code> option causes <span><strong class="command">host</strong></span> + The <code class="option">-V</code> option causes <span class="command"><strong>host</strong></span> to print the version number and exit. </p> </div> -<div class="refsect1" lang="en"> -<a name="id2543831"></a><h2>IDN SUPPORT</h2> +<div class="refsection"> +<a name="id-1.8"></a><h2>IDN SUPPORT</h2> <p> - If <span><strong class="command">host</strong></span> has been built with IDN (internationalized - domain name) support, it can accept and display non-ASCII domain names. - <span><strong class="command">host</strong></span> appropriately converts character encoding of + If <span class="command"><strong>host</strong></span> has been built with IDN (internationalized + domain name) support, it can accept and display non-ASCII domain names. + <span class="command"><strong>host</strong></span> appropriately converts character encoding of domain name before sending a request to DNS server or displaying a reply from the server. If you'd like to turn off the IDN support for some reason, defines the <code class="envar">IDN_DISABLE</code> environment variable. The IDN support is disabled if the variable is set when - <span><strong class="command">host</strong></span> runs. + <span class="command"><strong>host</strong></span> runs. </p> </div> -<div class="refsect1" lang="en"> -<a name="id2543853"></a><h2>FILES</h2> +<div class="refsection"> +<a name="id-1.9"></a><h2>FILES</h2> <p><code class="filename">/etc/resolv.conf</code> </p> </div> -<div class="refsect1" lang="en"> -<a name="id2543865"></a><h2>SEE ALSO</h2> +<div class="refsection"> +<a name="id-1.10"></a><h2>SEE ALSO</h2> <p><span class="citerefentry"><span class="refentrytitle">dig</span>(1)</span>, <span class="citerefentry"><span class="refentrytitle">named</span>(8)</span>. </p> |