UNIX_CHKPWD(8)			Linux-PAM Manual		  UNIX_CHKPWD(8)

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	 expira-
     tion  dates  in shadow. It is not intended to be run directly from the com-
     mand 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 di-
     rectly from applications.

SEE ALSO
     pam_unix(8)

AUTHOR
     Written by Andrew Morgan and other various people.

Linux-PAM			   04/09/2024			  UNIX_CHKPWD(8)