dnssec-dsfromkey(8)

1DNSSEC-DSFROMKEY(8)                  BIND9                 DNSSEC-DSFROMKEY(8)
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NAME

6       dnssec-dsfromkey - DNSSEC DS RR generation tool
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SYNOPSIS

9       dnssec-dsfromkey [-v level] [-1] [-2] [-a alg] [-C] [-l domain]
10                        [-T TTL] {keyfile}
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12       dnssec-dsfromkey {-s} [-1] [-2] [-a alg] [-K directory] [-l domain]
13                        [-s] [-c class] [-T TTL] [-f file] [-A] [-v level]
14                        {dnsname}
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16       dnssec-dsfromkey [-h] [-V]
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DESCRIPTION

19       dnssec-dsfromkey outputs the Delegation Signer (DS) resource record
20       (RR), as defined in RFC 3658 and RFC 4509, for the given key(s).
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OPTIONS

23       -1
24           Use SHA-1 as the digest algorithm (the default is to use both SHA-1
25           and SHA-256).
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27       -2
28           Use SHA-256 as the digest algorithm.
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30       -a algorithm
31           Select the digest algorithm. The value of algorithm must be one of
32           SHA-1 (SHA1), SHA-256 (SHA256), GOST or SHA-384 (SHA384). These
33           values are case insensitive.
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35       -C
36           Generate CDS records rather than DS records. This is mutually
37           exclusive with generating lookaside records.
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39       -T TTL
40           Specifies the TTL of the DS records.
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42       -K directory
43           Look for key files (or, in keyset mode, keyset- files) in
44           directory.
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46       -f file
47           Zone file mode: in place of the keyfile name, the argument is the
48           DNS domain name of a zone master file, which can be read from file.
49           If the zone name is the same as file, then it may be omitted.
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51           If file is set to "-", then the zone data is read from the standard
52           input. This makes it possible to use the output of the dig command
53           as input, as in:
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55           dig dnskey example.com | dnssec-dsfromkey -f - example.com
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57       -A
58           Include ZSKs when generating DS records. Without this option, only
59           keys which have the KSK flag set will be converted to DS records
60           and printed. Useful only in zone file mode.
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62       -l domain
63           Generate a DLV set instead of a DS set. The specified domain is
64           appended to the name for each record in the set. The DNSSEC
65           Lookaside Validation (DLV) RR is described in RFC 4431. This is
66           mutually exclusive with generating CDS records.
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68       -s
69           Keyset mode: in place of the keyfile name, the argument is the DNS
70           domain name of a keyset file.
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72       -c class
73           Specifies the DNS class (default is IN). Useful only in keyset or
74           zone file mode.
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76       -v level
77           Sets the debugging level.
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79       -h
80           Prints usage information.
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82       -V
83           Prints version information.
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EXAMPLE

86       To build the SHA-256 DS RR from the Kexample.com.+003+26160 keyfile
87       name, the following command would be issued:
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89       dnssec-dsfromkey -2 Kexample.com.+003+26160
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91       The command would print something like:
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93       example.com. IN DS 26160 5 2
94       3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94
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FILES

97       The keyfile can be designed by the key identification Knnnn.+aaa+iiiii
98       or the full file name Knnnn.+aaa+iiiii.key as generated by
99       dnssec-keygen(8).
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101       The keyset file name is built from the directory, the string keyset-
102       and the dnsname.
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CAVEAT

105       A keyfile error can give a "file not found" even if the file exists.
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AUTHOR

112       Internet Systems Consortium, Inc.
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COPYRIGHT

115       Copyright © 2008-2012, 2014-2016, 2018 Internet Systems Consortium,
116       Inc. ("ISC")
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120ISC                               2012-05-02               DNSSEC-DSFROMKEY(8)