1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
.\" Man page generated from reStructuredText.
.
.
.nr rst2man-indent-level 0
.
.de1 rstReportMargin
\\$1 \\n[an-margin]
level \\n[rst2man-indent-level]
level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
-
\\n[rst2man-indent0]
\\n[rst2man-indent1]
\\n[rst2man-indent2]
..
.de1 INDENT
.\" .rstReportMargin pre:
. RS \\$1
. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
. nr rst2man-indent-level +1
.\" .rstReportMargin post:
..
.de UNINDENT
. RE
.\" indent \\n[an-margin]
.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
.nr rst2man-indent-level -1
.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
..
.TH "DNSSEC-DSFROMKEY" "1" "@RELEASE_DATE@" "@PACKAGE_VERSION@" "BIND 9"
.SH NAME
dnssec-dsfromkey \- DNSSEC DS RR generation tool
.SH SYNOPSIS
.sp
\fBdnssec\-dsfromkey\fP [ \fB\-1\fP | \fB\-2\fP | \fB\-a\fP alg ] [ \fB\-C\fP ] [\fB\-T\fP TTL] [\fB\-v\fP level] [\fB\-K\fP directory] {keyfile}
.sp
\fBdnssec\-dsfromkey\fP [ \fB\-1\fP | \fB\-2\fP | \fB\-a\fP alg ] [ \fB\-C\fP ] [\fB\-T\fP TTL] [\fB\-v\fP level] [\fB\-c\fP class] [\fB\-A\fP] {\fB\-f\fP file} [dnsname]
.sp
\fBdnssec\-dsfromkey\fP [ \fB\-1\fP | \fB\-2\fP | \fB\-a\fP alg ] [ \fB\-C\fP ] [\fB\-T\fP TTL] [\fB\-v\fP level] [\fB\-c\fP class] [\fB\-K\fP directory] {\fB\-s\fP} {dnsname}
.sp
\fBdnssec\-dsfromkey\fP [ \fB\-h\fP | \fB\-V\fP ]
.SH DESCRIPTION
.sp
The \fBdnssec\-dsfromkey\fP command outputs DS (Delegation Signer) resource records
(RRs), or CDS (Child DS) RRs with the \fI\%\-C\fP option.
.sp
By default, only KSKs are converted (keys with flags = 257). The
\fI\%\-A\fP option includes ZSKs (flags = 256). Revoked keys are never
included.
.sp
The input keys can be specified in a number of ways:
.sp
By default, \fBdnssec\-dsfromkey\fP reads a key file named in the format
\fBKnnnn.+aaa+iiiii.key\fP, as generated by \fI\%dnssec\-keygen\fP\&.
.sp
With the \fI\%\-f file\fP option, \fBdnssec\-dsfromkey\fP reads keys from a zone
file or partial zone file (which can contain just the DNSKEY records).
.sp
With the \fI\%\-s\fP option, \fBdnssec\-dsfromkey\fP reads a \fBkeyset\-\fP file,
as generated by \fI\%dnssec\-keygen\fP \fI\%\-C\fP\&.
.SH OPTIONS
.INDENT 0.0
.TP
.B \-1
This option is an abbreviation for \fI\%\-a SHA1\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-2
This option is an abbreviation for \fI\%\-a SHA\-256\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-a algorithm
This option specifies 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.
.sp
The algorithm 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 SHA\-256.
.UNINDENT
.INDENT 0.0
.TP
.B \-A
This option indicates that ZSKs are to be included when generating DS records. Without this option, only
keys which have the KSK flag set are converted to DS records and
printed. This option is only useful in \fI\%\-f\fP zone file mode.
.UNINDENT
.INDENT 0.0
.TP
.B \-c class
This option specifies the DNS class; the default is IN. This option is only useful in \fI\%\-s\fP keyset
or \fI\%\-f\fP zone file mode.
.UNINDENT
.INDENT 0.0
.TP
.B \-C
This option generates CDS records rather than DS records.
.UNINDENT
.INDENT 0.0
.TP
.B \-f file
This option sets zone file mode, in which the final dnsname argument of \fBdnssec\-dsfromkey\fP is the
DNS domain name of a zone whose master file can be read from
\fBfile\fP\&. If the zone name is the same as \fBfile\fP, then it may be
omitted.
.sp
If \fBfile\fP is \fB\-\fP, then the zone data is read from the standard
input. This makes it possible to use the output of the \fI\%dig\fP
command as input, as in:
.sp
\fBdig dnskey example.com | dnssec\-dsfromkey \-f \- example.com\fP
.UNINDENT
.INDENT 0.0
.TP
.B \-h
This option prints usage information.
.UNINDENT
.INDENT 0.0
.TP
.B \-K directory
This option tells BIND 9 to look for key files or \fBkeyset\-\fP files in \fBdirectory\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-s
This option enables keyset mode, in which the final dnsname argument from \fBdnssec\-dsfromkey\fP is the DNS
domain name used to locate a \fBkeyset\-\fP file.
.UNINDENT
.INDENT 0.0
.TP
.B \-T TTL
This option specifies the TTL of the DS records. By default the TTL is omitted.
.UNINDENT
.INDENT 0.0
.TP
.B \-v level
This option sets the debugging level.
.UNINDENT
.INDENT 0.0
.TP
.B \-V
This option prints version information.
.UNINDENT
.SH EXAMPLE
.sp
To build the SHA\-256 DS RR from the \fBKexample.com.+003+26160\fP keyfile,
issue the following command:
.sp
\fBdnssec\-dsfromkey \-2 Kexample.com.+003+26160\fP
.sp
The command returns something similar to:
.sp
\fBexample.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0C5EA0B94\fP
.SH FILES
.sp
The keyfile can be designated by the key identification
\fBKnnnn.+aaa+iiiii\fP or the full file name \fBKnnnn.+aaa+iiiii.key\fP, as
generated by \fI\%dnssec\-keygen\fP\&.
.sp
The keyset file name is built from the \fBdirectory\fP, the string
\fBkeyset\-\fP, and the \fBdnsname\fP\&.
.SH CAVEAT
.sp
A keyfile error may return \(dqfile not found,\(dq even if the file exists.
.SH SEE ALSO
.sp
\fI\%dnssec\-keygen(8)\fP, \fI\%dnssec\-signzone(8)\fP, BIND 9 Administrator Reference Manual,
\fI\%RFC 3658\fP (DS RRs), \fI\%RFC 4509\fP (SHA\-256 for DS RRs),
\fI\%RFC 6605\fP (SHA\-384 for DS RRs), \fI\%RFC 7344\fP (CDS and CDNSKEY RRs).
.SH AUTHOR
Internet Systems Consortium
.SH COPYRIGHT
2023, Internet Systems Consortium
.\" Generated by docutils manpage writer.
.
|
