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+.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+..
+.. SPDX-License-Identifier: MPL-2.0
+..
+.. This Source Code Form is subject to the terms of the Mozilla Public
+.. License, v. 2.0.  If a copy of the MPL was not distributed with this
+.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
+..
+.. See the COPYRIGHT file distributed with this work for additional
+.. information regarding copyright ownership.
+
+.. highlight: console
+
+.. BEWARE: Do not forget to edit also ddns-confgen.rst!
+
+.. iscman:: tsig-keygen
+.. program:: tsig-keygen
+.. _man_tsig-keygen:
+
+tsig-keygen - TSIG key generation tool
+--------------------------------------
+
+Synopsis
+~~~~~~~~
+:program:`tsig-keygen` [**-a** algorithm] [**-h**] [name]
+
+Description
+~~~~~~~~~~~
+
+:program:`tsig-keygen` is an utility that generates keys for use in TSIG signing.
+The resulting keys can be used, for example, to secure dynamic DNS updates
+to a zone, or for the :iscman:`rndc` command channel.
+
+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 ``tsig-key``.
+
+Options
+~~~~~~~
+
+.. option:: -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 "hmac-" prefix may be omitted.
+
+.. option:: -h
+
+   This option prints a short summary of options and arguments.
+
+See Also
+~~~~~~~~
+
+:iscman:`nsupdate(1) <nsupdate>`, :iscman:`named.conf(5) <named.conf>`, :iscman:`named(8) <named>`, BIND 9 Administrator Reference Manual.