# 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/lib64/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
#
access to attrs=userPassword
by self write
by dn="cn=syncuser,dc=panafnet,dc=com" read
by * auth
access to *
by dn="cn=syncuser,dc=panafnet,dc=com" read
by * read
# 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=panafnet,dc=com"
rootdn "cn=Manager,dc=panafnet,dc=com"
rootpw {SSHA}9ma4wkvWQM2ws7E9q7qIgK9vQ2Rp4IhZ
# Cleartext passwords, especially for the rootdn, should
# be avoided. See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
# rootpw secret
# 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/panafnet.com
# 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
index default sub
index entryCSN,entryUUID eq
# 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
overlay syncprov
syncprov-checkpoint 100 05
[root@master ~]#
=============================================================================
/etc/ldap.conf(master)
==============================================================================
#host 127.0.0.1
host 192.168.117.4 192.168.117.5
# The distinguished name of the search base.
base dc=panafnet,dc=com
# The distinguished name to bind to the server with.
# Optional: default is to bind anonymously.
binddn dc=panafnet,dc=com
# The credentials to bind with.
# Optional: default is no credential.
bindpw secret
# may incur a small performance impact.
nss_base_passwd ou=People,dc=panafnet,dc=com?one
nss_base_shadow ou=People,dc=panafnet,dc=com?one
nss_base_group ou=Group,dc=panafnet,dc=com?one
#nss_base_hosts ou=Hosts,dc=example,dc=com?one
#nss_base_services ou=Services,dc=example,dc=com?one
# SASL mechanism for PAM authentication - use is experimental
# at present and does not support password policy control
#pam_sasl_mech DIGEST-MD5
#uri ldap://127.0.0.1/
ssl no
tls_cacertdir /etc/openldap/cacerts
pam_password md5
==================================================================================
/etc/openlldap/slapd.conf(slave)
===================================================================================
# network or connect timeouts (see bind_timelimit).
host 192.168.117.5 192.168.117.4
# The distinguished name of the search base.
base dc=panafnet,dc=com
# The distinguished name to bind to the server with.
# Optional: default is to bind anonymously.
binddn dc=panafnet,dc=com
# The credentials to bind with.
# Optional: default is no credential.
bindpw secret
# to append the default base DN but this
# may incur a small performance impact.
nss_base_passwd ou=People,dc=panafnet,dc=com?one
nss_base_shadow ou=People,dc=panafnet,dc=com?one
nss_base_group ou=Group,dc=pananfet,dc=com?one
#nss_base_hosts ou=Hosts,dc=example,dc=com?one
ssl no
tls_cacertdir /etc/openldap/cacerts
=====================================================================================
Note: I had integrated ldap with postfix.
So when am restart my postfix service i got this error in logs.
Jul 1 16:05:59 master postfix/postfix-script: stopping the Postfix mail system
Jul 1 16:05:59 master postfix/master[6303]: terminating on signal 15
Jul 1 16:06:01 master postfix/postfix-script: starting the Postfix mail system
Jul 1 16:06:02 master postfix/master[1283]: daemon started -- version 2.3.3, configuration /etc/postfix
Jul 1 16:06:02 master postfix/pickup[1284]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.4: Invalid credentials
Jul 1 16:06:02 master postfix/qmgr[1285]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.4: Invalid credentials
Jul 1 16:06:02 master postfix/pickup[1284]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.5: Invalid credentials
Jul 1 16:06:02 master postfix/pickup[1284]: nss_ldap: could not search LDAP server - Server is unavailable
Jul 1 16:06:02 master postfix/pickup[1284]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.4: Invalid credentials
Jul 1 16:06:02 master postfix/qmgr[1285]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.5: Invalid credentials
Jul 1 16:06:02 master postfix/qmgr[1285]: nss_ldap: could not search LDAP server - Server is unavailable
Jul 1 16:06:02 master postfix/pickup[1284]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.5: Invalid credentials
Jul 1 16:06:02 master postfix/pickup[1284]: nss_ldap: could not search LDAP server - Server is unavailable
Jul 1 16:06:02 master postfix/qmgr[1285]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.4: Invalid credentials
Jul 1 16:06:02 master postfix/qmgr[1285]: nss_ldap: failed to bind to LDAP server ldap://192.168.117.5: Invalid credentials
Jul 1 16:06:02 master postfix/qmgr[1285]: nss_ldap: could not search LDAP server - Server is unavailable
# 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/lib64/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=panafnet,dc=com"
rootdn "cn=Manager,dc=panafnet,dc=com"
rootpw {SSHA}F/VF2kcFeRzWxmYddG2JryM/0odBN7Hy
# Cleartext passwords, especially for the rootdn, should
# be avoided. See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
# rootpw secret
# 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/panafnet.com
syncrepl
rid=0
provider=ldap://192.168.117.4:389
binddn="dc=panafnet,dc=com"
bindmethod=simple
credentials=SyncUser
searchbase="dc=panafnet,dc=com"
filter="(objectClass=*)"
attrs="*"
schemachecking=off
scope=sub
type=refreshOnly
interval=00:00:00:06
access to attrs=userPassword
by dn="cn=syncuser,dc=panafnet,dc=com" write
by * auth
access to *
by dn="cn=syncuser,dc=panafnet,dc=com" write
by * read
# 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
index default sub
index entryCSN,entryUUID eq
# 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
[root@slave ~]#
=====================================================================================
/etc/ldap.conf(slave
======================================================================================