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.TH "TSIG-KEYGEN" "8" "2025-10-22" "9.20.15" "BIND 9"
.SH NAME
tsig-keygen \- TSIG key generation tool
.SH SYNOPSIS
.sp
\fBtsig\-keygen\fP [\fB\-a\fP algorithm] [\fB\-h\fP] [name]
.SH DESCRIPTION
.sp
\fBtsig\-keygen\fP is an utility that generates keys for use with TSIG
(Transaction Signatures) as defined in \fBRFC 2845\fP \%<https://\:datatracker\:.ietf\:.org/\:doc/\:html/\:rfc2845\:.html>\&. The resulting keys can be used,
for example, to secure dynamic DNS updates to a zone, or for the \fBrndc\fP \%<#\:std-iscman-rndc>
command channel.
.sp
A domain name can be specified on the command line to be used as the name
of the generated key. If no name is specified, the default is \fBtsig\-key\fP\&.
.SH OPTIONS
.INDENT 0.0
.TP
.B \-a algorithm
This option specifies the algorithm to use for the TSIG key. Available
choices are: hmac\-md5, hmac\-sha1, hmac\-sha224, hmac\-sha256, hmac\-sha384,
and hmac\-sha512. The default is hmac\-sha256. Options are
case\-insensitive, and the \(dqhmac\-\(dq prefix may be omitted.
.UNINDENT
.INDENT 0.0
.TP
.B \-h
This option prints a short summary of options and arguments.
.UNINDENT
.SH SEE ALSO
.sp
\fBnsupdate(1)\fP \%<#\:std-iscman-nsupdate>, \fBnamed.conf(5)\fP \%<#\:std-iscman-named\:.conf>, \fBnamed(8)\fP \%<#\:std-iscman-named>, BIND 9 Administrator Reference Manual.
.SH Author
Internet Systems Consortium
.SH Copyright
2025, Internet Systems Consortium
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