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


AUTHOR         top

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

COLOPHON         top

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