2002-06-13 11:59:10 +08:00
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.TH SLAPPASSWD 8C "RELEASEDATE" "OpenLDAP LDVERSION"
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2000-06-16 14:43:55 +08:00
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.\" $OpenLDAP$
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2002-01-05 05:17:25 +08:00
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.\" Copyright 1998-2002 The OpenLDAP Foundation All Rights Reserved.
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.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
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.SH NAME
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slappasswd \- OpenLDAP password utility
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.SH SYNOPSIS
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.B SBINDIR/slappasswd
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.B [\-v]
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.B [\-u]
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.B [\-s secret]
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.B [\-h hash]
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.B [\-c salt-format]
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.B
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.LP
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.SH DESCRIPTION
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.LP
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.B Slappasswd
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is used to generate an userPassword value
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suitable for use with
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.BR ldapmodify (1)
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or
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.BR slapd.conf (5)
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.I rootpw
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configuration directive.
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.SH OPTIONS
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.TP
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.B \-v
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enable verbose mode.
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.TP
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.B \-u
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Generate RFC2307 userPassword values (the default). Future
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versions of this program may generate alternative syntaxes
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by default. This option is provided for forward compatibility.
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.TP
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.BI \-s " secret"
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The secret to hash. If not provided, the user will be prompted
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for the secret to hash.
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.TP
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.BI \-h " scheme"
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If -h is specified, one of the following RFC2307 schemes may
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be specified:
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.IR {CRYPT} ,
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.IR {MD5} ,
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.IR {SMD5} ,
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.IR {SSHA} ", and"
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.IR {SHA} .
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The default is
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.IR {SSHA} .
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.TP
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.BI \-c " crypt-salt-format"
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Specify the format of the salt passed to
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.BR crypt (3)
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when generating {CRYPT} passwords.
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This string needs to be in
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.BR sprintf (3)
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format and may include one (and only one) %s conversion.
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This conversion will be substituted with a string random
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characters from [A\-Za\-z0\-9./]. For example, "%.2s"
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provides a two character salt and "$1$%.8s" tells some
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versions of crypt(3) to use an MD5 algorithm and provides
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8 random characters of salt. The default is "%s", which
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provides 31 characters of salt.
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.SH LIMITATIONS
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The practice storing hashed passwords in userPassword violates
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Standard Track (RFC2256) schema specifications and may hinder
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interoperability. A new attribute type to hold hashed
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passwords is needed.
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.SH "SECURITY CONSIDERATIONS"
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Use of hashed passwords does not protect passwords during
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protocol transfer. TLS or other eavesdropping protections
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should be inplace before using LDAP simple bind. The
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hashed password values should be protected as if they
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were clear text passwords.
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.SH "SEE ALSO"
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.BR ldappasswd (1),
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.BR ldapmodify (1),
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.BR slapd (8)
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.BR slapd.conf (5)
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.LP
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"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
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.SH ACKNOWLEDGEMENTS
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OpenLDAP is developed and maintained by
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The OpenLDAP Project (http://www.openldap.org/).
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OpenLDAP is derived from University of Michigan LDAP 3.3 Release.
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