80 lines
1.7 KiB
Groff
80 lines
1.7 KiB
Groff
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.\" Copyright (C) 2003 International Business Machines Corporation
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.\" This file is distributed according to the GNU General Public License.
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.\" See the file COPYING in the top level source directory for details.
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.\"
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.de Sh \" Subsection
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.br
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.if t .Sp
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.ne 5
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.PP
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\fB\\$1\fR
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.PP
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..
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.de Sp \" Vertical space (when we can't use .PP)
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.if t .sp .5v
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.if n .sp
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..
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.de Ip \" List item
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.br
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.ie \\n(.$>=3 .ne \\$3
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.el .ne 3
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.IP "\\$1" \\$2
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..
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.TH "UNIX2_CHKPWD" 8 "2003-03-21" "Linux-PAM 0.76" "Linux-PAM Manual"
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.SH NAME
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unix2_chkpwd \- helper binary that verifies the password of the current user
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.SH "SYNOPSIS"
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.ad l
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.hy 0
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/sbin/unix2_chkpwd \fIservicename\fR \fIusername\fR
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.sp
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.ad
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.hy
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.SH "DESCRIPTION"
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.PP
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\fBunix2_chkpwd\fR is a helper program for applications that verifies
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the password of the current user. It is not intended to be run directly from
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the command line and logs a security violation if done so.
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It is typically installed setuid root or setgid shadow and called by
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applications, which only wishes to do an user authentification and
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nothing more.
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.SH "OPTIONS"
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.PP
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unix2_chkpwd requires the following arguments:
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.TP
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\fIpam_service\fR
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The name of the service using unix2_chkpwd. This is required to be one of
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the services in /etc/pam.d
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.TP
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\fIusername\fR
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The name of the user whose password you want to verify.
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.SH "INPUTS"
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.PP
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unix2_chkpwd expects the password via stdin.
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.SH "RETURN CODES"
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.PP
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\fBunix2_chkpwd\fR has the following return codes:
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.TP
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1
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unix2_chkpwd was inappropriately called from the command line or the password is incorrect.
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.TP
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0
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The password is correct.
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.SH "HISTORY"
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Written by Olaf Kirch loosely based on unix_chkpwd by Andrew Morgan
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.SH "SEE ALSO"
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.PP
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\fBpam\fR(8)
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.SH AUTHOR
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Emily Ratliff.
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