pwhistory_helper(8) — Linux manual page

PWHISTORY_HELPER(8)         Linux-PAM Manual         PWHISTORY_HELPER(8)

NAME         top

       pwhistory_helper - Helper binary that transfers password hashes
       from passwd or shadow to opasswd

SYNOPSIS         top

       pwhistory_helper [...]

DESCRIPTION         top

       pwhistory_helper is a helper program for the pam_pwhistory module
       that transfers password hashes from passwd or shadow file to the
       opasswd file and checks a password supplied by user against the
       existing hashes in the opasswd file.

       The purpose of the helper is to enable tighter confinement of
       login and password changing services. The helper is thus called
       only when SELinux is enabled on the system.

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

SEE ALSO         top

       pam_pwhistory(8)

AUTHOR         top

       Written by Tomas Mraz based on the code originally in
       pam_pwhistory and pam_unix modules.

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 project's upstream Git repository
       ⟨https://github.com/linux-pam/linux-pam.git⟩ on 2023-12-22.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2023-12-18.)  If you discover any rendering
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       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

Linux-PAM Manual               12/22/2023            PWHISTORY_HELPER(8)

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