UNIX_CHKPWD
Section: Linux\-PAM Manual (8)
Updated: 11/25/2020
Page Index
NAME
unix_chkpwd - Helper binary that verifies the password of the current user
SYNOPSIS
-
unix_chkpwd [...]
DESCRIPTION
unix_chkpwd
is a helper program for the
pam_unix
module that verifies the password of the current user. It also checks password and account expiration dates in
shadow. 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.
The interface of the helper - command line options, and input/output data format are internal to the
pam_unix
module and it should not be called directly from applications.
SEE ALSO
pam_unix(8)
AUTHOR
Written by Andrew Morgan and other various people.