unix_chkpwd

Langue: en

Autres versions - même langue

Version: 2003-03-21 (fedora - 16/08/07)

Section: 8 (Commandes administrateur)

Sommaire

NAME

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

SYNOPSIS

/sbin/unix_chkpwd [username]

DESCRIPTION

unix_chkpwd is a helper program for the pam_unix module that verifies the password of the current user. 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.

OPTIONS

unix_pwdchk optionally takes the following argument:

username
The username of the user whose password you want to check: this must match the current user id.

INPUTS

unix_pwdchk expects the following inputs via stdin:

option
Either nullok or nonull, depending on whether the user can have an empty password.
password
The password to verify.

RETURN CODES

unix_chkpwd has the following return codes:

1
unix_chkpwd was inappropriately called from the command line or the password is incorrect.
0
The password is correct.

HISTORY

Written by Andrew Morgan

SEE ALSO

pam(8)

AUTHOR

Emily Ratliff.