{
    "mode": "man",
    "parameter": "pwhistory_helper",
    "section": "8",
    "url": "https://www.chedong.com/phpMan.php/man/pwhistory_helper/8/json",
    "generated": "2026-10-08T07:33:27Z",
    "synopsis": "pwhistoryhelper [...]",
    "sections": {
        "NAME": {
            "content": "pwhistoryhelper - Helper binary that transfers password hashes from passwd or shadow to\nopasswd\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "pwhistoryhelper [...]\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "pwhistoryhelper is a helper program for the pampwhistory module that transfers password\nhashes from passwd or shadow file to the opasswd file and checks a password supplied by user\nagainst the existing hashes in the opasswd file.\n\nThe purpose of the helper is to enable tighter confinement of login and password changing\nservices. The helper is thus called only when SELinux is enabled on the system.\n\nThe interface of the helper - command line options, and input/output data format are internal\nto the pampwhistory module and it should not be called directly from applications.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "pampwhistory(8)\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Written by Tomas Mraz based on the code originally in pampwhistory and pamunix modules.\n\nLinux-PAM                                    05/07/2023                          PWHISTORYHELPER(8)",
            "subsections": []
        }
    },
    "summary": "pwhistoryhelper - Helper binary that transfers password hashes from passwd or shadow to opasswd",
    "flags": [],
    "examples": [],
    "see_also": [
        {
            "name": "pampwhistory",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/pampwhistory/8/json"
        }
    ]
}