68 lines
3.0 KiB
Groff
68 lines
3.0 KiB
Groff
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.\" Copyright 1992, Julianne Frances Haugh
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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 Julianne F. Haugh 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 JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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.\" 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 JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: pwauth.8,v 1.4 1998/12/28 20:35:22 marekm Exp $
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.\"
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.TH PWAUTH 8
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.SH NAME
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pwauth \- administrator defined password authentication
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.SH DESCRIPTION
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The system administrator is able to define a list of programs which
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are used to validate a user's identity.
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These programs are given in place of the encrypted password
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information which is present in either the \fI/etc/passwd\fR or
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\fI/etc/shadow\fR files.
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The utilities which administer user accounts examine the encrypted
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password field and determine if the user has an administrator defined
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authentication program.
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The \fBpw_auth\fR function will be invoked whenever one of these
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administration programs determines that a user which is being altered
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has authentication programs defined.
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.PP
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The initial entry is created with the \fBuseradd\fR command.
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Alterations, such as changing authentication information or deleting
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the user account, will cause the \fBpw_auth\fR function to be invoked.
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This keeps the authentication information up to date for each user
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account.
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.PP
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The authentication programs do not create the actual login or network
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sessions.
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The exit code from the authentication program is taken as an
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indication that the action is to be permitted.
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The calling process must have the appropriate priviledges to create
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the login or network session itself.
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.SH SEE ALSO
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.BR login (1),
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.BR passwd (1),
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.BR su (1),
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.BR useradd (8),
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.BR userdel (8),
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.BR usermod (8),
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.BR pw_auth (3)
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.SH AUTHOR
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Julianne Frances Haugh (jfh@bga.com)
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