password verification verify password of a user for only first 8 characters Post: 302248374

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unix2_chkpwd

UNIX2_CHKPWD(8) 						 Linux-PAM Manual						   UNIX2_CHKPWD(8)

NAME

       unix2_chkpwd - helper binary that verifies the password of the current user

SYNOPSIS

       /sbin/unix2_chkpwd servicename username

DESCRIPTION

       unix2_chkpwd  is  a  helper program for applications 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 and called by applications, which only wishes to do  an  user  authentification  and
       nothing more.

OPTIONS

       unix2_pwdchk requires the following arguments:

       pam_service
	      The name of the service using unix2_chkpwd. This is required to be one of the services in /etc/pam.d

       username
	      The name of the user whose password you want to verify.

INPUTS

       unix2_pwdchk expects the password via stdin.

RETURN CODES

       unix2_chkpwd has the following return codes:

       1      unix2_chkpwd was inappropriately called from the command line or the password is incorrect.

       0      The password is correct.

HISTORY

       Written by Olaf Kirch loosely based on unix_chkpwd by Andrew Morgan

SEE ALSO

       pam(8)

AUTHOR

       Emily Ratliff.

Linux-PAM 0.76							    2003-03-21							   UNIX2_CHKPWD(8)