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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- - Copyright (C) 2000-2021 Internet Systems Consortium, Inc. ("ISC") - - This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. 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>dnssec-dsfromkey</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <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.dnssec-coverage.html" title="dnssec-coverage"> <link rel="next" href="man.dnssec-importkey.html" title="dnssec-importkey"> </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">dnssec-dsfromkey</span></th></tr> <tr> <td width="20%" align="left"> <a accesskey="p" href="man.dnssec-coverage.html">Prev</a>�</td> <th width="60%" align="center">Manual pages</th> <td width="20%" align="right">�<a accesskey="n" href="man.dnssec-importkey.html">Next</a> </td> </tr> </table> <hr> </div> <div class="refentry"> <a name="man.dnssec-dsfromkey"></a><div class="titlepage"></div> <div class="refnamediv"> <h2>Name</h2> <p><span class="application">dnssec-dsfromkey</span> — DNSSEC DS RR generation tool</p> </div> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> [ <code class="option">-1</code> | <code class="option">-2</code> | <code class="option">-a <em class="replaceable"><code>alg</code></em></code> ] [ <code class="option">-C</code> | <code class="option">-l <em class="replaceable"><code>domain</code></em></code> ] [<code class="option">-T <em class="replaceable"><code>TTL</code></em></code>] [<code class="option">-v <em class="replaceable"><code>level</code></em></code>] [<code class="option">-K <em class="replaceable"><code>directory</code></em></code>] {keyfile}</p></div> <div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> [ <code class="option">-1</code> | <code class="option">-2</code> | <code class="option">-a <em class="replaceable"><code>alg</code></em></code> ] [ <code class="option">-C</code> | <code class="option">-l <em class="replaceable"><code>domain</code></em></code> ] [<code class="option">-T <em class="replaceable"><code>TTL</code></em></code>] [<code class="option">-v <em class="replaceable"><code>level</code></em></code>] [<code class="option">-c <em class="replaceable"><code>class</code></em></code>] [<code class="option">-A</code>] {<code class="option">-f <em class="replaceable"><code>file</code></em></code>} [dnsname]</p></div> <div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> [ <code class="option">-1</code> | <code class="option">-2</code> | <code class="option">-a <em class="replaceable"><code>alg</code></em></code> ] [ <code class="option">-C</code> | <code class="option">-l <em class="replaceable"><code>domain</code></em></code> ] [<code class="option">-T <em class="replaceable"><code>TTL</code></em></code>] [<code class="option">-v <em class="replaceable"><code>level</code></em></code>] [<code class="option">-c <em class="replaceable"><code>class</code></em></code>] [<code class="option">-K <em class="replaceable"><code>directory</code></em></code>] {-s} {dnsname}</p></div> <div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> [ <code class="option">-h</code> | <code class="option">-V</code> ]</p></div> </div> <div class="refsection"> <a name="id-1.14.8.7"></a><h2>DESCRIPTION</h2> <p> The <span class="command"><strong>dnssec-dsfromkey</strong></span> command outputs DS (Delegation Signer) resource records (RRs) and other similarly-constructed RRs: with the <code class="option">-l</code> option it outputs DLV (DNSSEC Lookaside Validation) RRs; or with the <code class="option">-C</code> it outputs CDS (Child DS) RRs. </p> <p> The input keys can be specified in a number of ways: </p> <p> By default, <span class="command"><strong>dnssec-dsfromkey</strong></span> reads a key file named like <code class="filename">Knnnn.+aaa+iiiii.key</code>, as generated by <span class="command"><strong>dnssec-keygen</strong></span>. </p> <p> With the <code class="option">-f <em class="replaceable"><code>file</code></em></code> option, <span class="command"><strong>dnssec-dsfromkey</strong></span> reads keys from a zone file or partial zone file (which can contain just the DNSKEY records). </p> <p> With the <code class="option">-s</code> option, <span class="command"><strong>dnssec-dsfromkey</strong></span> reads a <code class="filename">keyset-</code> file, as generated by <span class="command"><strong>dnssec-keygen</strong></span> <code class="option">-C</code>. </p> </div> <div class="refsection"> <a name="id-1.14.8.8"></a><h2>OPTIONS</h2> <div class="variablelist"><dl class="variablelist"> <dt><span class="term">-1</span></dt> <dd><p> An abbreviation for <code class="option">-a SHA1</code> </p></dd> <dt><span class="term">-2</span></dt> <dd><p> An abbreviation for <code class="option">-a SHA-256</code> </p></dd> <dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt> <dd> <p> Specify a digest algorithm to use when converting DNSKEY records to DS records. This option can be repeated, so that multiple DS records are created for each DNSKEY record. </p> <p> The <em class="replaceable"><code>algorithm</code></em> must be one of SHA-1, SHA-256, or SHA-384. These values are case insensitive, and the hyphen may be omitted. If no algorithm is specified, the default is to use both SHA-1 and SHA-256. </p> </dd> <dt><span class="term">-A</span></dt> <dd><p> Include ZSKs when generating DS records. Without this option, only keys which have the KSK flag set will be converted to DS records and printed. Useful only in <code class="option">-f</code> zone file mode. </p></dd> <dt><span class="term">-c <em class="replaceable"><code>class</code></em></span></dt> <dd><p> Specifies the DNS class (default is IN). Useful only in <code class="option">-s</code> keyset or <code class="option">-f</code> zone file mode. </p></dd> <dt><span class="term">-C</span></dt> <dd><p> Generate CDS records rather than DS records. This is mutually exclusive with the <code class="option">-l</code> option for generating DLV records. </p></dd> <dt><span class="term">-f <em class="replaceable"><code>file</code></em></span></dt> <dd> <p> Zone file mode: <span class="command"><strong>dnssec-dsfromkey</strong></span>'s final <em class="replaceable"><code>dnsname</code></em> argument is the DNS domain name of a zone whose master file can be read from <code class="option">file</code>. If the zone name is the same as <code class="option">file</code>, then it may be omitted. </p> <p> If <em class="replaceable"><code>file</code></em> is <code class="literal">"-"</code>, then the zone data is read from the standard input. This makes it possible to use the output of the <span class="command"><strong>dig</strong></span> command as input, as in: </p> <p> <strong class="userinput"><code>dig dnskey example.com | dnssec-dsfromkey -f - example.com</code></strong> </p> </dd> <dt><span class="term">-h</span></dt> <dd><p> Prints usage information. </p></dd> <dt><span class="term">-K <em class="replaceable"><code>directory</code></em></span></dt> <dd><p> Look for key files or <code class="filename">keyset-</code> files in <code class="option">directory</code>. </p></dd> <dt><span class="term">-l <em class="replaceable"><code>domain</code></em></span></dt> <dd><p> Generate a DLV set instead of a DS set. The specified <em class="replaceable"><code>domain</code></em> is appended to the name for each record in the set. This is mutually exclusive with the <code class="option">-C</code> option for generating CDS records. </p></dd> <dt><span class="term">-s</span></dt> <dd><p> Keyset mode: <span class="command"><strong>dnssec-dsfromkey</strong></span>'s final <em class="replaceable"><code>dnsname</code></em> argument is the DNS domain name used to locate a <code class="filename">keyset-</code> file. </p></dd> <dt><span class="term">-T <em class="replaceable"><code>TTL</code></em></span></dt> <dd><p> Specifies the TTL of the DS records. By default the TTL is omitted. </p></dd> <dt><span class="term">-v <em class="replaceable"><code>level</code></em></span></dt> <dd><p> Sets the debugging level. </p></dd> <dt><span class="term">-V</span></dt> <dd><p> Prints version information. </p></dd> </dl></div> </div> <div class="refsection"> <a name="id-1.14.8.9"></a><h2>EXAMPLE</h2> <p> To build the SHA-256 DS RR from the <strong class="userinput"><code>Kexample.com.+003+26160</code></strong> keyfile name, you can issue the following command: </p> <p><strong class="userinput"><code>dnssec-dsfromkey -2 Kexample.com.+003+26160</code></strong> </p> <p> The command would print something like: </p> <p><strong class="userinput"><code>example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0C5EA0B94</code></strong> </p> </div> <div class="refsection"> <a name="id-1.14.8.10"></a><h2>FILES</h2> <p> The keyfile can be designated by the key identification <code class="filename">Knnnn.+aaa+iiiii</code> or the full file name <code class="filename">Knnnn.+aaa+iiiii.key</code> as generated by <span class="refentrytitle">dnssec-keygen</span>(8). </p> <p> The keyset file name is built from the <code class="option">directory</code>, the string <code class="filename">keyset-</code> and the <code class="option">dnsname</code>. </p> </div> <div class="refsection"> <a name="id-1.14.8.11"></a><h2>CAVEAT</h2> <p> A keyfile error can give a "file not found" even if the file exists. </p> </div> <div class="refsection"> <a name="id-1.14.8.12"></a><h2>SEE ALSO</h2> <p><span class="citerefentry"><span class="refentrytitle">dnssec-keygen</span>(8)</span>, <span class="citerefentry"><span class="refentrytitle">dnssec-signzone</span>(8)</span>, <em class="citetitle">BIND 9 Administrator Reference Manual</em>, <em class="citetitle">RFC 3658</em> (DS RRs), <em class="citetitle">RFC 4431</em> (DLV RRs), <em class="citetitle">RFC 4509</em> (SHA-256 for DS RRs), <em class="citetitle">RFC 6605</em> (SHA-384 for DS RRs), <em class="citetitle">RFC 7344</em> (CDS and CDNSKEY RRs). </p> </div> </div> <div class="navfooter"> <hr> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> <a accesskey="p" href="man.dnssec-coverage.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.dnssec-importkey.html">Next</a> </td> </tr> <tr> <td width="40%" align="left" valign="top"> <span class="application">dnssec-coverage</span>�</td> <td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td> <td width="40%" align="right" valign="top">�<span class="application">dnssec-importkey</span> </td> </tr> </table> </div> <p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.36 (Extended Support Version)</p> </body> </html>