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If a copy of the MPL was not distributed with this + - file, You can obtain one at http://mozilla.org/MPL/2.0/. +--> +<html lang="en"> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>mdig</title> +<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> +<link rel="home" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual"> +<link rel="up" href="Bv9ARM.ch13.html" title="Manual pages"> +<link rel="prev" href="man.dig.html" title="dig"> +<link rel="next" href="man.host.html" title="host"> +</head> +<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> +<div class="navheader"> +<table width="100%" summary="Navigation header"> +<tr><th colspan="3" align="center"><span class="application">mdig</span></th></tr> +<tr> +<td width="20%" align="left"> +<a accesskey="p" href="man.dig.html">Prev</a> </td> +<th width="60%" align="center">Manual pages</th> +<td width="20%" align="right"> <a accesskey="n" href="man.host.html">Next</a> +</td> +</tr> +</table> +<hr> +</div> +<div class="refentry"> +<a name="man.mdig"></a><div class="titlepage"></div> + + + + <div class="refnamediv"> +<h2>Name</h2> +<p> + <span class="application">mdig</span> + — DNS pipelined lookup utility + </p> +</div> + + + + <div class="refsynopsisdiv"> +<h2>Synopsis</h2> + <div class="cmdsynopsis"><p> + <code class="command">mdig</code> + {@server} + [<code class="option">-f <em class="replaceable"><code>filename</code></em></code>] + [<code class="option">-h</code>] + [<code class="option">-v</code>] + [ + [<code class="option">-4</code>] + | [<code class="option">-6</code>] + ] + [<code class="option">-m</code>] + [<code class="option">-b <em class="replaceable"><code>address</code></em></code>] + [<code class="option">-p <em class="replaceable"><code>port#</code></em></code>] + [<code class="option">-c <em class="replaceable"><code>class</code></em></code>] + [<code class="option">-t <em class="replaceable"><code>type</code></em></code>] + [<code class="option">-i</code>] + [<code class="option">-x <em class="replaceable"><code>addr</code></em></code>] + [plusopt...] + </p></div> + + <div class="cmdsynopsis"><p> + <code class="command">mdig</code> + {-h} + </p></div> + + <div class="cmdsynopsis"><p> + <code class="command">mdig</code> + [@server] + {global-opt...} + { + {local-opt...} + {query} + ...} + </p></div> + </div> + + <div class="refsection"> +<a name="id-1.14.3.7"></a><h2>DESCRIPTION</h2> + + <p><span class="command"><strong>mdig</strong></span> + is a multiple/pipelined query version of <span class="command"><strong>dig</strong></span>: + instead of waiting for a response after sending each query, + it begins by sending all queries. Responses are displayed in + the order in which they are received, not in the order the + corresponding queries were sent. + </p> + + <p> + <span class="command"><strong>mdig</strong></span> options are a subset of the + <span class="command"><strong>dig</strong></span> options, and are divided into "anywhere + options" which can occur anywhere, "global options" which must + occur before the query name (or they are ignored with a warning), + and "local options" which apply to the next query on the command + line. + </p> + + <p> + The {@server} option is a mandatory global + option. It is the name or IP address of the name server to query. + (Unlike <span class="command"><strong>dig</strong></span>, this value is not retrieved from + <code class="filename">/etc/resolv.conf</code>.) It can be an IPv4 address + in dotted-decimal notation, an IPv6 address in colon-delimited + notation, or a hostname. When the supplied + <em class="parameter"><code>server</code></em> argument is a hostname, + <span class="command"><strong>mdig</strong></span> resolves that name before querying + the name server. + </p> + + <p><span class="command"><strong>mdig</strong></span> + provides a number of query options which affect + the way in which lookups are made and the results displayed. Some of + these set or reset flag bits in the query header, some determine which + sections of the answer get printed, and others determine the timeout + and retry strategies. + </p> + + <p> + Each query option is identified by a keyword preceded by a plus + sign (<code class="literal">+</code>). Some keywords set or reset an + option. These may be preceded by the string <code class="literal">no</code> + to negate the meaning of that keyword. Other keywords assign + values to options like the timeout interval. They have the + form <code class="option">+keyword=value</code>. + </p> + </div> + + <div class="refsection"> +<a name="id-1.14.3.8"></a><h2>ANYWHERE OPTIONS</h2> + + + <p> + The <code class="option">-f</code> option makes <span class="command"><strong>mdig</strong></span> + operate in batch mode by reading a list of lookup requests to + process from the file <em class="parameter"><code>filename</code></em>. The file + contains a number of queries, one per line. Each entry in the + file should be organized in the same way they would be presented + as queries to <span class="command"><strong>mdig</strong></span> using the command-line interface. + </p> + + <p> + The <code class="option">-h</code> causes <span class="command"><strong>mdig</strong></span> to + print the detailed help with the full list of options and exit. + </p> + + <p> + The <code class="option">-v</code> causes <span class="command"><strong>mdig</strong></span> to + print the version number and exit. + </p> + </div> + + <div class="refsection"> +<a name="id-1.14.3.9"></a><h2>GLOBAL OPTIONS</h2> + + + <p> + The <code class="option">-4</code> option forces <span class="command"><strong>mdig</strong></span> to + only use IPv4 query transport. + </p> + + <p> + The <code class="option">-6</code> option forces <span class="command"><strong>mdig</strong></span> to + only use IPv6 query transport. + </p> + + <p> + The <code class="option">-b</code> option sets the source IP address of the + query to <em class="parameter"><code>address</code></em>. This must be a valid + address on one of the host's network interfaces or "0.0.0.0" or + "::". An optional port may be specified by appending + "#<port>" + </p> + + <p> + The <code class="option">-m</code> option enables memory usage debugging. + </p> + + <p> + The <code class="option">-p</code> option is used when a non-standard port + number is to be queried. + <em class="parameter"><code>port#</code></em> is the port number + that <span class="command"><strong>mdig</strong></span> will send its queries instead of + the standard DNS port number 53. This option would be used to + test a name server that has been configured to listen for + queries on a non-standard port number. + </p> + + <p> + The global query options are: + </p> +<div class="variablelist"><dl class="variablelist"> +<dt><span class="term"><code class="option">+[no]additional</code></span></dt> +<dd> + <p> + Display [do not display] the additional section of a + reply. The default is to display it. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]all</code></span></dt> +<dd> + <p> + Set or clear all display flags. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]answer</code></span></dt> +<dd> + <p> + Display [do not display] the answer section of a + reply. The default is to display it. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]authority</code></span></dt> +<dd> + <p> + Display [do not display] the authority section of a + reply. The default is to display it. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]besteffort</code></span></dt> +<dd> + <p> + Attempt to display the contents of messages which are + malformed. The default is to not display malformed + answers. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]cl</code></span></dt> +<dd> + <p> + Display [do not display] the CLASS when printing the + record. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]comments</code></span></dt> +<dd> + <p> + Toggle the display of comment lines in the output. + The default is to print comments. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]continue</code></span></dt> +<dd> + <p> + Continue on errors (e.g. timeouts). + </p> + </dd> +<dt><span class="term"><code class="option">+[no]crypto</code></span></dt> +<dd> + <p> + Toggle the display of cryptographic fields in DNSSEC + records. The contents of these field are unnecessary + to debug most DNSSEC validation failures and removing + them makes it easier to see the common failures. The + default is to display the fields. When omitted they + are replaced by the string "[omitted]" or in the + DNSKEY case the key id is displayed as the replacement, + e.g. "[ key id = value ]". + </p> + </dd> +<dt><span class="term"><code class="option">+dscp[=value]</code></span></dt> +<dd> + <p> + Set the DSCP code point to be used when sending the + query. Valid DSCP code points are in the range + [0..63]. By default no code point is explicitly set. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]multiline</code></span></dt> +<dd> + <p> + Print records like the SOA records in a verbose + multi-line format with human-readable comments. The + default is to print each record on a single line, to + facilitate machine parsing of the <span class="command"><strong>mdig</strong></span> + output. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]question</code></span></dt> +<dd> + <p> + Print [do not print] the question section of a query + when an answer is returned. The default is to print + the question section as a comment. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]rrcomments</code></span></dt> +<dd> + <p> + Toggle the display of per-record comments in the + output (for example, human-readable key information + about DNSKEY records). The default is not to print + record comments unless multiline mode is active. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]short</code></span></dt> +<dd> + <p> + Provide a terse answer. The default is to print the + answer in a verbose form. + </p> + </dd> +<dt><span class="term"><code class="option">+split=W</code></span></dt> +<dd> + <p> + Split long hex- or base64-formatted fields in resource + records into chunks of <em class="parameter"><code>W</code></em> + characters (where <em class="parameter"><code>W</code></em> is rounded + up to the nearest multiple of 4). + <em class="parameter"><code>+nosplit</code></em> or + <em class="parameter"><code>+split=0</code></em> causes fields not to + be split at all. The default is 56 characters, or + 44 characters when multiline mode is active. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]tcp</code></span></dt> +<dd> + <p> + Use [do not use] TCP when querying name servers. The + default behavior is to use UDP. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]ttlid</code></span></dt> +<dd> + <p> + Display [do not display] the TTL when printing the + record. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]ttlunits</code></span></dt> +<dd> + <p> + Display [do not display] the TTL in friendly human-readable + time units of "s", "m", "h", "d", and "w", representing + seconds, minutes, hours, days and weeks. Implies +ttlid. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]vc</code></span></dt> +<dd> + <p> + Use [do not use] TCP when querying name servers. This + alternate syntax to <em class="parameter"><code>+[no]tcp</code></em> + is provided for backwards compatibility. The "vc" + stands for "virtual circuit". + </p> + </dd> +</dl></div> +<p> + + </p> + </div> + + <div class="refsection"> +<a name="id-1.14.3.10"></a><h2>LOCAL OPTIONS</h2> + + + <p> + The <code class="option">-c</code> option sets the query class to + <em class="parameter"><code>class</code></em>. It can be any valid query class + which is supported in BIND 9. The default query class is "IN". + </p> + + <p> + The <code class="option">-t</code> option sets the query type to + <em class="parameter"><code>type</code></em>. It can be any valid query type + which is supported in BIND 9. The default query type is "A", + unless the <code class="option">-x</code> option is supplied to indicate + a reverse lookup with the "PTR" query type. + </p> + + <p> + The <code class="option">-i</code> option sets the reverse domain for + IPv6 addresses to IP6.INT. + </p> + + <p> + Reverse lookups — mapping addresses to names — are + simplified by the <code class="option">-x</code> option. + <em class="parameter"><code>addr</code></em> is an IPv4 + address in dotted-decimal notation, or a colon-delimited IPv6 address. + <span class="command"><strong>mdig</strong></span> automatically performs a lookup for a + query name like <code class="literal">11.12.13.10.in-addr.arpa</code> and + sets the query type and class to PTR and IN respectively. + By default, IPv6 addresses are looked up using nibble format + under the IP6.ARPA domain. To use the older RFC1886 method + using the IP6.INT domain specify the <code class="option">-i</code> option. + </p> + + <p> + The local query options are: + </p> +<div class="variablelist"><dl class="variablelist"> +<dt><span class="term"><code class="option">+[no]aaflag</code></span></dt> +<dd> + <p> + A synonym for <em class="parameter"><code>+[no]aaonly</code></em>. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]aaonly</code></span></dt> +<dd> + <p> + Sets the "aa" flag in the query. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]adflag</code></span></dt> +<dd> + <p> + Set [do not set] the AD (authentic data) bit in the + query. This requests the server to return whether + all of the answer and authority sections have all + been validated as secure according to the security + policy of the server. AD=1 indicates that all records + have been validated as secure and the answer is not + from a OPT-OUT range. AD=0 indicate that some part + of the answer was insecure or not validated. This + bit is set by default. + </p> + </dd> +<dt><span class="term"><code class="option">+bufsize=B</code></span></dt> +<dd> + <p> + Set the UDP message buffer size advertised using EDNS0 + to <em class="parameter"><code>B</code></em> bytes. The maximum and + minimum sizes of this buffer are 65535 and 0 respectively. + Values outside this range are rounded up or down + appropriately. Values other than zero will cause a + EDNS query to be sent. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]cdflag</code></span></dt> +<dd> + <p> + Set [do not set] the CD (checking disabled) bit in + the query. This requests the server to not perform + DNSSEC validation of responses. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]cookie[<span class="optional">=####</span>]</code></span></dt> +<dd> + <p> + Send a COOKIE EDNS option, with optional value. + Replaying a COOKIE from a previous response will allow + the server to identify a previous client. The default + is <code class="option">+nocookie</code>. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]dnssec</code></span></dt> +<dd> + <p> + Requests DNSSEC records be sent by setting the DNSSEC + OK bit (DO) in the OPT record in the additional section + of the query. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]edns[=#]</code></span></dt> +<dd> + <p> + Specify the EDNS version to query with. Valid values + are 0 to 255. Setting the EDNS version will cause + a EDNS query to be sent. <code class="option">+noedns</code> + clears the remembered EDNS version. EDNS is set to + 0 by default. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]ednsflags[=#]</code></span></dt> +<dd> + <p> + Set the must-be-zero EDNS flags bits (Z bits) to the + specified value. Decimal, hex and octal encodings are + accepted. Setting a named flag (e.g. DO) will silently be + ignored. By default, no Z bits are set. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]ednsopt[=code[:value]]</code></span></dt> +<dd> + <p> + Specify EDNS option with code point <code class="option">code</code> + and optionally payload of <code class="option">value</code> as a + hexadecimal string. <code class="option">+noednsopt</code> + clears the EDNS options to be sent. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]expire</code></span></dt> +<dd> + <p> + Send an EDNS Expire option. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]nsid</code></span></dt> +<dd> + <p> + Include an EDNS name server ID request when sending + a query. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]recurse</code></span></dt> +<dd> + <p> + Toggle the setting of the RD (recursion desired) bit + in the query. This bit is set by default, which means + <span class="command"><strong>mdig</strong></span> normally sends recursive + queries. + </p> + </dd> +<dt><span class="term"><code class="option">+retry=T</code></span></dt> +<dd> + <p> + Sets the number of times to retry UDP queries to + server to <em class="parameter"><code>T</code></em> instead of the + default, 2. Unlike <em class="parameter"><code>+tries</code></em>, + this does not include the initial query. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]subnet=addr[/prefix-length]</code></span></dt> +<dd> + <p> + Send (don't send) an EDNS Client Subnet option with the + specified IP address or network prefix. + </p> + <p> + <span class="command"><strong>mdig +subnet=0.0.0.0/0</strong></span>, or simply + <span class="command"><strong>mdig +subnet=0</strong></span> for short, sends an EDNS + client-subnet option with an empty address and a source + prefix-length of zero, which signals a resolver that + the client's address information must + <span class="emphasis"><em>not</em></span> be used when resolving + this query. + </p> + </dd> +<dt><span class="term"><code class="option">+timeout=T</code></span></dt> +<dd> + <p> + Sets the timeout for a query to + <em class="parameter"><code>T</code></em> seconds. The default + timeout is 5 seconds for UDP transport and 10 for TCP. + An attempt to set <em class="parameter"><code>T</code></em> to less + than 1 will result + in a query timeout of 1 second being applied. + </p> + </dd> +<dt><span class="term"><code class="option">+tries=T</code></span></dt> +<dd> + <p> + Sets the number of times to try UDP queries to server + to <em class="parameter"><code>T</code></em> instead of the default, + 3. If <em class="parameter"><code>T</code></em> is less than or equal + to zero, the number of tries is silently rounded up + to 1. + </p> + </dd> +<dt><span class="term"><code class="option">+udptimeout=T</code></span></dt> +<dd> + <p> + Sets the timeout between UDP query retries. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]unknownformat</code></span></dt> +<dd> + <p> + Print all RDATA in unknown RR type presentation format + (RFC 3597). The default is to print RDATA for known types + in the type's presentation format. + </p> + </dd> +<dt><span class="term"><code class="option">+[no]zflag</code></span></dt> +<dd> + <p> + Set [do not set] the last unassigned DNS header flag in a + DNS query. This flag is off by default. + </p> + </dd> +</dl></div> +<p> + + </p> + </div> + + <div class="refsection"> +<a name="id-1.14.3.11"></a><h2>SEE ALSO</h2> + + <p><span class="citerefentry"> + <span class="refentrytitle">dig</span>(1) + </span>, + <em class="citetitle">RFC1035</em>. + </p> + </div> +</div> +<div class="navfooter"> +<hr> +<table width="100%" summary="Navigation footer"> +<tr> +<td width="40%" align="left"> +<a accesskey="p" href="man.dig.html">Prev</a> </td> +<td width="20%" align="center"><a accesskey="u" href="Bv9ARM.ch13.html">Up</a></td> +<td width="40%" align="right"> <a accesskey="n" href="man.host.html">Next</a> +</td> +</tr> +<tr> +<td width="40%" align="left" valign="top">dig </td> +<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td> +<td width="40%" align="right" valign="top"> host</td> +</tr> +</table> +</div> +<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.5-P4 (Extended Support Version)</p> +</body> +</html> |