found some useful link, but really not understanding which part I have to take from the code for my requirement.
 
can some please suggest.
 
http://pic.dhe.ibm.com/infocenter/iseries/v7r1m0/index.jsp?topic=%2Frzarl%2Frzarlpwdpgm.htm
 
John
 
________________________________
 From: CRPence <CRPbottle@xxxxxxxxx>
To: midrange-l@xxxxxxxxxxxx 
Sent: Wednesday, 13 March 2013 12:47 PM
Subject: Re: Not logged to the system.
  
On 13 Mar 2013 10:16, John Mathew wrote:
3) Include upper case and lower case along with special character in
password.
As we are using V5R4M0 version there is no option of QPWDRULES and
this new feature is in I.6 version.
please suggest if there any alternative thing to do this.
   Perhaps QPWDVLDPGM would be acceptable; i.e. by allowing user code to 
implement the rules, for lack of those particular rules being provided 
via the other password rule system values.
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/rzakz/rzakzqpwdvldpgm.htm
_i Password system values: Password validation program i_
"Specifies whether a user-written program will do additional validation 
on passwords or not. (QPWDVLDPGM)
Password validation program is a system value that is not in iSeries™ 
Navigator. This system value provides the ability for a user-written 
program to do additional validation on passwords.
  ..."
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/rzamv/rzamvqpwdvldpgm.htm
_i Password validation program i_
"This system value provides the ability for a user-written program to do 
additional validation on passwords.
The current and new passwords are passed to the validation program 
without encryption. ...
  ..."
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/apis/xsyvlphr.htm
_i Validate Password Exit Program i_
"Required Parameter:
  1 Validate password exit information  Input   Char(*)
  2 Return indicator                    Output  Char(1)
   QSYSINC Member Name: EVLDPWD1
   Exit Point Name: QIBM_QSY_VLD_PASSWRD
   Exit Point Format Name: VLDP0100
The Validate Password exit program is called when a Change Password 
(CHGPWD) command or Change Password (QSYCHGPW) API is executed. The exit 
program is called after the password composition rules have been checked.
The exit program examines the old and new password values for 
conformance with customer unique password composition rules. The exit 
program returns an indication whether the new password should be 
accepted or rejected. ...
  ...
Note: The QPWDVLDPGM system value must be set to the value *REGFAC. If 
the QPWDVLDPGM system value contains any other value, the validate 
password exit programs will not be called.
  ..."
 
As an Amazon Associate we earn from qualifying purchases.