I just configured by using sssd.
[sssd]
config_file_version = 2
services = nss, pam
domains = LDAP
[nss]
filter_users = root,ldap,named,avahi,haldaemon,dbus,radiusd,news,nscd
[pam]
# Example LDAP domain
[domain/LDAP]
id_provider = ldap
auth_provider = ldap
ldap_schema = rfc2307bis
ldap_uri = ldap://auth4.uk.xxxx.lan
ldap_search_base = l=uk,dc=xxxx,dc=lan
ldap_group_member = uniquemember
ldap_access_filter = cn=system-users,ou=Groups,l=uk,dc=xxxxx,dc=lan
chpass_provider = ldap
tls_reqcert = demand
ldap_tls_cacert = /etc/openldap/cacerts/CA-lego.crt
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth required pam_env.so
auth sufficient pam_unix.so nullok try_first_pass
auth requisite pam_succeed_if.so uid >= 500 quiet
auth sufficient pam_sss.so use_first_pass
auth required pam_deny.so
account required pam_unix.so broken_shadow
account sufficient pam_localuser.so
account sufficient pam_succeed_if.so uid < 500 quiet
account [default=bad success=ok user_unknown=ignore] pam_sss.so
account required pam_permit.so
password requisite pam_cracklib.so try_first_pass retry=3
password sufficient pam_unix.so sha512 shadow nullok try_first_pass use_authtok
password sufficient pam_sss.so use_authtok
password required pam_deny.so
session required pam_mkhomedir.so umask=0022 skel=/etc/skel/
session optional pam_keyinit.so revoke
session required pam_limits.so
session [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid
session sufficient pam_sss.so
session required pam_unix.so
but no luck ..
Thanks for further help