66 lines
2.7 KiB
Groff
66 lines
2.7 KiB
Groff
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.\"$Id: gshadow.5,v 1.2 2005/04/02 16:10:23 kloczek Exp $
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.\" Copyright 2005, Nicolas FRANCOIS
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of Nicolas FRANCOIS nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY NICOLAS FRANCOIS AND CONTRIBUTORS ``AS IS''
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.\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL NICOLAS FRANCOIS OR CONTRIBUTORS BE
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.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" THE POSSIBILITY OF SUCH DAMAGE.
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.TH GSHADOW 5
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.SH NAME
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gshadow \- shadowed group file
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.SH DESCRIPTION
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.I gshadow
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contains the shadowed information for group accounts.
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It contains lines with the folowing colon\-separated fields:
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.IP "" .5i
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Group name
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.IP "" .5i
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Encrypted password
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.IP "" .5i
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Comma\-separated list of group administrators
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.IP "" .5i
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Comma\-separated list of group members.
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.PP
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The group name and password fields must be filled.
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The encryped password consists of 13 characters from the 64\-character
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alphabet a thru z, A thru Z, 0 thru 9, \. and /.
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Refer to \fBcrypt\fR(3) for details on how this string is interpreted.
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If the password field contains some string that is not valid result
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of \fBcrypt\fR(3), for instance ! or *, the user will not be able to use
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a unix password to log in, subject to \fBpam\fR(7).
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.PP
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This information supercedes any password present in \fI/etc/group\fR.
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.PP
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This file must not be readable by regular users if password
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security is to be maintained.
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.SH FILES
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\fI/etc/group\fR \- user group file
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.br
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\fI/etc/gshadow\fR \- shadowed group file
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.SH SEE ALSO
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.BR group (5),
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.BR gpasswd (5),
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.BR newgrp (5)
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.SH AUTHOR
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Nicolas FRANCOIS
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