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20 <!-- $Id: dnssec-dsfromkey.docbook,v 1.12 2010-12-23 23:47:08 tbox Exp $ -->
21 <refentry id="man.dnssec-dsfromkey">
23 <date>August 26, 2009</date>
27 <refentrytitle><application>dnssec-dsfromkey</application></refentrytitle>
28 <manvolnum>8</manvolnum>
29 <refmiscinfo>BIND9</refmiscinfo>
33 <refname><application>dnssec-dsfromkey</application></refname>
34 <refpurpose>DNSSEC DS RR generation tool</refpurpose>
42 <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
48 <command>dnssec-dsfromkey</command>
49 <arg><option>-v <replaceable class="parameter">level</replaceable></option></arg>
50 <arg><option>-1</option></arg>
51 <arg><option>-2</option></arg>
52 <arg><option>-a <replaceable class="parameter">alg</replaceable></option></arg>
53 <arg><option>-l <replaceable class="parameter">domain</replaceable></option></arg>
54 <arg choice="req">keyfile</arg>
57 <command>dnssec-dsfromkey</command>
58 <arg choice="req">-s</arg>
59 <arg><option>-1</option></arg>
60 <arg><option>-2</option></arg>
61 <arg><option>-a <replaceable class="parameter">alg</replaceable></option></arg>
62 <arg><option>-K <replaceable class="parameter">directory</replaceable></option></arg>
63 <arg><option>-l <replaceable class="parameter">domain</replaceable></option></arg>
64 <arg><option>-s</option></arg>
65 <arg><option>-c <replaceable class="parameter">class</replaceable></option></arg>
66 <arg><option>-f <replaceable class="parameter">file</replaceable></option></arg>
67 <arg><option>-A</option></arg>
68 <arg><option>-v <replaceable class="parameter">level</replaceable></option></arg>
69 <arg choice="req">dnsname</arg>
74 <title>DESCRIPTION</title>
75 <para><command>dnssec-dsfromkey</command>
76 outputs the Delegation Signer (DS) resource record (RR), as defined in
77 RFC 3658 and RFC 4509, for the given key(s).
82 <title>OPTIONS</title>
89 Use SHA-1 as the digest algorithm (the default is to use
90 both SHA-1 and SHA-256).
99 Use SHA-256 as the digest algorithm.
105 <term>-a <replaceable class="parameter">algorithm</replaceable></term>
108 Select the digest algorithm. The value of
109 <option>algorithm</option> must be one of SHA-1 (SHA1),
110 SHA-256 (SHA256) or GOST. These values are case insensitive.
116 <term>-K <replaceable class="parameter">directory</replaceable></term>
119 Look for key files (or, in keyset mode,
120 <filename>keyset-</filename> files) in
121 <option>directory</option>.
127 <term>-f <replaceable class="parameter">file</replaceable></term>
130 Zone file mode: in place of the keyfile name, the argument is
131 the DNS domain name of a zone master file, which can be read
132 from <option>file</option>. If the zone name is the same as
133 <option>file</option>, then it may be omitted.
142 Include ZSK's when generating DS records. Without this option,
143 only keys which have the KSK flag set will be converted to DS
144 records and printed. Useful only in zone file mode.
150 <term>-l <replaceable class="parameter">domain</replaceable></term>
153 Generate a DLV set instead of a DS set. The specified
154 <option>domain</option> is appended to the name for each
156 The DNSSEC Lookaside Validation (DLV) RR is described
166 Keyset mode: in place of the keyfile name, the argument is
167 the DNS domain name of a keyset file.
173 <term>-c <replaceable class="parameter">class</replaceable></term>
176 Specifies the DNS class (default is IN). Useful only
177 in keyset or zone file mode.
183 <term>-v <replaceable class="parameter">level</replaceable></term>
186 Sets the debugging level.
194 <title>EXAMPLE</title>
196 To build the SHA-256 DS RR from the
197 <userinput>Kexample.com.+003+26160</userinput>
198 keyfile name, the following command would be issued:
200 <para><userinput>dnssec-dsfromkey -2 Kexample.com.+003+26160</userinput>
203 The command would print something like:
205 <para><userinput>example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94</userinput>
212 The keyfile can be designed by the key identification
213 <filename>Knnnn.+aaa+iiiii</filename> or the full file name
214 <filename>Knnnn.+aaa+iiiii.key</filename> as generated by
215 <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>.
218 The keyset file name is built from the <option>directory</option>,
219 the string <filename>keyset-</filename> and the
220 <option>dnsname</option>.
225 <title>CAVEAT</title>
227 A keyfile error can give a "file not found" even if the file exists.
232 <title>SEE ALSO</title>
234 <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
237 <refentrytitle>dnssec-signzone</refentrytitle><manvolnum>8</manvolnum>
239 <citetitle>BIND 9 Administrator Reference Manual</citetitle>,
240 <citetitle>RFC 3658</citetitle>,
241 <citetitle>RFC 4431</citetitle>.
242 <citetitle>RFC 4509</citetitle>.
247 <title>AUTHOR</title>
248 <para><corpauthor>Internet Systems Consortium</corpauthor>