PWHISTORY_HELPER(8) Linux-PAM Manual PWHISTORY_HELPER(8)
NAME
pwhistory_helper - Helper binary that transfers password hashes from passwd or shadow to opasswd
SYNOPSIS
pwhistory_helper [...]
DESCRIPTION
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
pam_pwhistory(8)
AUTHOR
Written by Tomas Mraz based on the code originally in pam_pwhistory and pam_unix modules.
Linux-PAM Manual 06/17/2014 PWHISTORY_HELPER(8)
