LDAP Problem

[pinguingilo]

I have configration LDAP...But When i can't running the ldap daemon..the error like this :

Dec 22 06:27:56 ngoprek runuser: nss_ldap: failed to bind to LDAP server ldap://192.168.0.134: Can't contact LDAP server
Dec 22 06:27:56 ngoprek runuser: nss_ldap: reconnecting to LDAP server (sleeping 64 seconds)...
Dec 22 06:29:00 ngoprek runuser: nss_ldap: failed to bind to LDAP server ldap://192.168.0.134: Can't contact LDAP server
Dec 22 06:29:00 ngoprek runuser: nss_ldap: could not search LDAP server - Server is unavailable
Dec 22 06:29:00 ngoprek runuser: nss_ldap: failed to bind to LDAP server ldap://192.168.0.134: Can't contact LDAP server
Dec 22 06:29:00 ngoprek runuser: nss_ldap: failed to bind to LDAP server ldap://192.168.0.134: Can't contact LDAP server
Dec 22 06:29:00 ngoprek runuser: nss_ldap: reconnecting to LDAP server (sleeping 4 seconds)...
Dec 22 06:29:04 ngoprek runuser: nss_ldap: failed to bind to LDAP server ldap://192.168.0.134: Can't contact LDAP server
Dec 22 06:29:04 ngoprek runuser: nss_ldap: reconnecting to LDAP server (sleeping 8 seconds)...
Dec 22 06:29:12 ngoprek runuser: nss_ldap: failed to bind to LDAP server ldap://192.168.0.134: Can't contact LDAP server
Dec 22 06:29:12 ngoprek runuser: nss_ldap: reconnecting to LDAP server (sleeping 16 seconds)...

and here my slapd.conf

#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include         /etc/openldap/schema/core.schema
include         /etc/openldap/schema/cosine.schema
include         /etc/openldap/schema/inetorgperson.schema
include         /etc/openldap/schema/nis.schema

# Allow LDAPv2 client connections.  This is NOT the default.
allow bind_v2

# Do not enable referrals until AFTER you have a working directory
# service AND an understanding of referrals.
#referral       ldap://root.openldap.org

pidfile         /var/run/openldap/slapd.pid
argsfile        /var/run/openldap/slapd.args

# Load dynamic backend modules:
# modulepath    /usr/lib/openldap
# moduleload    back_bdb.la
# moduleload    back_ldap.la
# moduleload    back_ldbm.la
# moduleload    back_passwd.la
# moduleload    back_shell.la

# The next three lines allow use of TLS for encrypting connections using a
# dummy test certificate which you can generate by changing to
# /etc/pki/tls/certs, running "make slapd.pem", and fixing permissions on
# slapd.pem so that the ldap user or group can read it.  Your client software
# may balk at self-signed certificates, however.
# TLSCACertificateFile /etc/pki/tls/certs/ca-bundle.crt
# TLSCertificateFile /etc/pki/tls/certs/slapd.pem
# TLSCertificateKeyFile /etc/pki/tls/certs/slapd.pem
# Sample security restrictions
#       Require integrity protection (prevent hijacking)
#       Require 112-bit (3DES or better) encryption for updates
#       Require 63-bit encryption for simple bind
# security ssf=1 update_ssf=112 simple_bind=64

# Sample access control policy:
#       Root DSE: allow anyone to read it
#       Subschema (sub)entry DSE: allow anyone to read it
#       Other DSEs:
#               Allow self write access
#               Allow authenticated users read access
#               Allow anonymous users to authenticate
#       Directives needed to implement policy:
# access to dn.base="" by * read
# access to dn.base="cn=Subschema" by * read
# access to *
#       by self write
#       by users read
#       by anonymous auth
#
# if no access controls are present, the default policy
# allows anyone and everyone to read anything but restricts
# updates to rootdn.  (e.g., "access to * by * read")
#
# rootdn can always read and write EVERYTHING!

#######################################################################
# ldbm and/or bdb database definitions
#######################################################################

database        bdb
suffix          "dc=ngoprek,dc=or.id"
rootdn          "cn=admin,dc=ngoprek,dc=or.id"
# Cleartext passwords, especially for the rootdn, should

# be avoided.  See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
 rootpw         {SSHA}l3+V1UC3uY2paungaPSvqOgiVJ4yXiZ0
# rootpw                {crypt}ijFYNcSNctBYg

# The database directory MUST exist prior to running slapd AND
# should only be accessible by the slapd and slap tools.
# Mode 700 recommended.
directory       /var/lib/ldap/ngoprek.or.id/

# Indices to maintain for this database
index objectClass                       eq,pres
index ou,cn,mail,surname,givenname      eq,pres,sub
index uidNumber,gidNumber,loginShell    eq,pres
index uid,memberUid                     eq,pres,sub
index nisMapName,nisMapEntry            eq,pres,sub

# Replicas of this database
#replogfile /var/lib/ldap/openldap-master-replog
#replica host=ldap-1.example.com:389 starttls=critical
#     bindmethod=sasl saslmech=GSSAPI
#     authcId=host/ldap-master.example.com@EXAMPLE.COM

help me !!!