unix_chkpwd(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR | COLOPHON

UNIX_CHKPWD(8)              Linux-PAM Manual              UNIX_CHKPWD(8)

NAME         top

       unix_chkpwd - Helper binary that verifies the password of the
       current user

SYNOPSIS         top

       unix_chkpwd [...]

DESCRIPTION         top

       unix_chkpwd is a helper program for the pam_unix module that
       verifies the password of the current user. It also checks
       password and account expiration dates in shadow. It is not
       intended to be run directly from the command line and logs a
       security violation if done so.

       It is typically installed setuid root or setgid shadow.

       The interface of the helper - command line options, and
       input/output data format are internal to the pam_unix module and
       it should not be called directly from applications.

SEE ALSO         top

       pam_unix(8)

AUTHOR         top

       Written by Andrew Morgan and other various people.

COLOPHON         top

       This page is part of the linux-pam (Pluggable Authentication
       Modules for Linux) project.  Information about the project can be
       found at ⟨http://www.linux-pam.org/⟩.  If you have a bug report
       for this manual page, see ⟨//www.linux-pam.org/⟩.  This page was
       obtained from the tarball Linux-PAM-1.3.0.tar.bz2 fetched from
       ⟨http://www.linux-pam.org/library/⟩ on 2021-04-01.  If you
       discover any rendering problems in this HTML version of the page,
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       manual page), send a mail to man-pages@man7.org

Linux-PAM Manual               04/01/2016                 UNIX_CHKPWD(8)

Pages that refer to this page: pam_unix(8)