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2N/A<
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title>
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div class="refentry" lang="en">
2N/A<
div class="refnamediv">
2N/A<
p><
span class="application">dnssec-dsfromkey</
span> — DNSSEC DS RR generation tool</
p>
2N/A<
div class="refsynopsisdiv">
2N/A<
div class="cmdsynopsis"><
p><
code class="command">dnssec-dsfromkey</
code> [<
code class="option">-v <
em class="replaceable"><
code>level</
code></
em></
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">-l <
em class="replaceable"><
code>domain</
code></
em></
code>] [<
code class="option">-T <
em class="replaceable"><
code>TTL</
code></
em></
code>] {keyfile}</
p></
div>
2N/A<
div class="cmdsynopsis"><
p><
code class="command">dnssec-dsfromkey</
code> {-s} [<
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">-K <
em class="replaceable"><
code>directory</
code></
em></
code>] [<
code class="option">-l <
em class="replaceable"><
code>domain</
code></
em></
code>] [<
code class="option">-s</
code>] [<
code class="option">-c <
em class="replaceable"><
code>class</
code></
em></
code>] [<
code class="option">-T <
em class="replaceable"><
code>TTL</
code></
em></
code>] [<
code class="option">-f <
em class="replaceable"><
code>file</
code></
em></
code>] [<
code class="option">-A</
code>] [<
code class="option">-v <
em class="replaceable"><
code>level</
code></
em></
code>] {dnsname}</
p></
div>
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543491"></
a><
h2>DESCRIPTION</
h2>
2N/A<
p><
span><
strong class="command">dnssec-dsfromkey</
strong></
span>
2N/A outputs the Delegation Signer (DS) resource record (RR), as defined in
2N/A RFC 3658 and RFC 4509, for the given key(s).
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543502"></
a><
h2>OPTIONS</
h2>
2N/A<
div class="variablelist"><
dl>
2N/A<
dt><
span class="term">-1</
span></
dt>
2N/A Use SHA-1 as the digest algorithm (the default is to use
2N/A both SHA-1 and SHA-256).
2N/A<
dt><
span class="term">-2</
span></
dt>
2N/A Use SHA-256 as the digest algorithm.
2N/A<
dt><
span class="term">-a <
em class="replaceable"><
code>algorithm</
code></
em></
span></
dt>
2N/A Select the digest algorithm. The value of
2N/A <
code class="option">algorithm</
code> must be one of SHA-1 (SHA1),
2N/A SHA-256 (SHA256), GOST or SHA-384 (SHA384).
2N/A These values are case insensitive.
2N/A<
dt><
span class="term">-T <
em class="replaceable"><
code>TTL</
code></
em></
span></
dt>
2N/A Specifies the TTL of the DS records.
2N/A<
dt><
span class="term">-K <
em class="replaceable"><
code>directory</
code></
em></
span></
dt>
2N/A Look for key files (or, in keyset mode,
2N/A <
code class="filename">keyset-</
code> files) in
2N/A <
code class="option">directory</
code>.
2N/A<
dt><
span class="term">-f <
em class="replaceable"><
code>file</
code></
em></
span></
dt>
2N/A Zone file mode: in place of the keyfile name, the argument is
2N/A the DNS domain name of a zone master file, which can be read
2N/A from <
code class="option">file</
code>. If the zone name is the same as
2N/A <
code class="option">file</
code>, then it may be omitted.
2N/A If <
code class="option">file</
code> is set to <
code class="literal">"-"</
code>, then
2N/A the zone data is read from the standard input. This makes it
2N/A possible to use the output of the <
span><
strong class="command">dig</
strong></
span>
2N/A command as input, as in:
2N/A<
dt><
span class="term">-A</
span></
dt>
2N/A Include ZSK's when generating DS records. Without this option,
2N/A only keys which have the KSK flag set will be converted to DS
2N/A records and printed. Useful only in zone file mode.
2N/A<
dt><
span class="term">-l <
em class="replaceable"><
code>domain</
code></
em></
span></
dt>
2N/A Generate a DLV set instead of a DS set. The specified
2N/A <
code class="option">domain</
code> is appended to the name for each
2N/A The DNSSEC Lookaside Validation (DLV) RR is described
2N/A<
dt><
span class="term">-s</
span></
dt>
2N/A Keyset mode: in place of the keyfile name, the argument is
2N/A the DNS domain name of a keyset file.
2N/A<
dt><
span class="term">-c <
em class="replaceable"><
code>class</
code></
em></
span></
dt>
2N/A Specifies the DNS class (default is IN). Useful only
2N/A in keyset or zone file mode.
2N/A<
dt><
span class="term">-v <
em class="replaceable"><
code>level</
code></
em></
span></
dt>
2N/A Sets the debugging level.
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543729"></
a><
h2>EXAMPLE</
h2>
2N/A To build the SHA-256 DS RR from the
2N/A keyfile name, the following command would be issued:
2N/A<
p><
strong class="userinput"><
code>dnssec-dsfromkey -2
Kexample.com.+003+26160</
code></
strong>
2N/A The command would print something like:
2N/A<
p><
strong class="userinput"><
code>
example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94</
code></
strong>
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543758"></
a><
h2>FILES</
h2>
2N/A The keyfile can be designed by the key identification
2N/A <
code class="filename">Knnnn.+aaa+iiiii</
code> or the full file name
2N/A <
code class="filename">Knnnn.+aaa+
iiiii.key</
code> as generated by
2N/A <
span class="refentrytitle">dnssec-keygen</
span>(8).
2N/A The keyset file name is built from the <
code class="option">directory</
code>,
2N/A the string <
code class="filename">keyset-</
code> and the
2N/A <
code class="option">dnsname</
code>.
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543794"></
a><
h2>CAVEAT</
h2>
2N/A A keyfile error can give a "file not found" even if the file exists.
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543803"></
a><
h2>SEE ALSO</
h2>
2N/A<
p><
span class="citerefentry"><
span class="refentrytitle">dnssec-keygen</
span>(8)</
span>,
2N/A <
span class="citerefentry"><
span class="refentrytitle">dnssec-signzone</
span>(8)</
span>,
2N/A <
em class="citetitle">BIND 9 Administrator Reference Manual</
em>,
2N/A <
em class="citetitle">RFC 3658</
em>,
2N/A <
em class="citetitle">RFC 4431</
em>.
2N/A <
em class="citetitle">RFC 4509</
em>.
2N/A<
div class="refsect1" lang="en">
2N/A<
a name="id2543843"></
a><
h2>AUTHOR</
h2>
2N/A<
p><
span class="corpauthor">Internet Systems Consortium</
span>