Hi otheus ,
following are the contents of my pam.conf file

#
# PAM configuration
#
# Notes:
#
# If the path to a library is not absolute, it is assumed to be
# relative to the directory /usr/lib/security/$ISA/
#
# For PA applications, /usr/lib/security/$ISA/libpam_unix.so.1 is a
# symbolic link that points to the corresponding PA (32 or 64-bit) PAM
# backend library.
#
# The $ISA (i.e. Instruction Set Architecture) token will be replaced
# by the PAM engine with an appropriate directory string.
# See pam.conf(4).
#
# Also note that the use of pam_hpsec(5) is mandatory for some of
# the services. See pam_hpsec(5).
#
# Authentication management
#
login auth required libpam_hpsec.so.1
login auth required libpam_unix.so.1
su auth required libpam_unix.so.1
dtlogin auth required libpam_hpsec.so.1
dtlogin auth required libpam_unix.so.1
dtaction auth required libpam_hpsec.so.1
dtaction auth required libpam_unix.so.1
ftp auth required libpam_hpsec.so.1
ftp auth required libpam_unix.so.1
rcomds auth required libpam_hpsec.so.1
rcomds auth required libpam_unix.so.1
sshd auth required libpam_hpsec.so.1
sshd auth required libpam_unix.so.1
OTHER auth required libpam_unix.so.1
#
# Account management
#
login account required libpam_hpsec.so.1
login account required libpam_unix.so.1
su account required libpam_unix.so.1
dtlogin account required libpam_hpsec.so.1
dtlogin account required libpam_unix.so.1
dtaction account required libpam_hpsec.so.1
dtaction account required libpam_unix.so.1
ftp account required libpam_hpsec.so.1
ftp account required libpam_unix.so.1
rcomds account required libpam_hpsec.so.1
rcomds account required libpam_unix.so.1
sshd account required libpam_hpsec.so.1
sshd account required libpam_unix.so.1
OTHER account required libpam_unix.so.1
#
# Session management
#
login session required libpam_hpsec.so.1
login session required libpam_unix.so.1
dtlogin session required libpam_hpsec.so.1
dtlogin session required libpam_unix.so.1
ftp session required libpam_hpsec.so.1 bypass_limit_login bypass_umask bypass_nologin
ftp session required libpam_unix.so.1
rcomds session required libpam_hpsec.so.1 bypass_limit_login
rcomds session required libpam_unix.so.1
sshd session required libpam_hpsec.so.1
sshd session required libpam_unix.so.1
OTHER session required libpam_unix.so.1
#
# Password management
#
login password required libpam_hpsec.so.1
login password required libpam_unix.so.1
passwd password required libpam_hpsec.so.1
passwd password required libpam_unix.so.1
dtlogin password required libpam_hpsec.so.1
dtlogin password required libpam_unix.so.1
sshd password required libpam_hpsec.so.1
sshd password required libpam_unix.so.1
OTHER password required libpam_unix.so.1


I commented the line " passwd password required libpam_unix.so.1 "

But it didnt help.. Also we dont have /etc/shadow file nor /etc/pam_chauthtok . Ii verified the other servers also ..

Pls help