Install and Configure OpenLDAP server on CentOS7

This video will walk you through the installation and configuration of OpenLDAP server on centOS 7.4
The commands / files that I used in configurstion.
#--db.ldif---!
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcSuffix
olcSuffix: dc=hadoop,dc=com
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcRootDN
olcRootDN: cn=ldapadm,dc=hadoop,dc=com
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcRootPW
olcRootPW: {SSHA}/C9pu+P5jvTbQ+6hRIopbfiC8WxyMalo
#----------------------------------------#
ldapmodify -Y EXTERNAL -H ldapi:/// -f db.ldif
#---------------------monitor.ldif-------------------#
dn: olcDatabase={1}monitor,cn=config
changetype: modify
replace: olcAccess
olcAccess: {0}to * by dn.base="gidNumber=0+uidNumber=0,cn=peercred,cn=external, cn=auth" read by dn.base="cn=ldapadm,dc=hadoop,dc=com" read by * none
#--------------------------
olcDatabase\=\{1\}monitor.ldif
ldapmodify -Y EXTERNAL -H ldapi:/// -f monitor.ldif
cp /usr/share/openldap-servers/DB_CONFIG.example /var/lib/ldap/DB_CONFIG
chown ldap:ldap /var/lib/ldap/*
ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/cosine.ldif
ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/nis.ldif
ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/inetorgperson.ldif
#-----------------base.ldif --------------------#
dn: dc=hadoop,dc=com
dc: hadoop
objectClass: top
objectClass: domain
dn: cn=ldapadm,dc=hadoop,dc=com
objectClass: organizationalRole
cn: ldapadm
description: LDAP Manager
dn: ou=People,dc=hadoop,dc=com
objectClass: organizationalUnit
ou: People
dn: ou=Group,dc=hadoop,dc=com
objectClass: organizationalUnit
ou: Group
#------------------------------------
ldapadd -x -W -D "cn=ldapadm,dc=hadoop,dc=com" -f base.ldif
ldapsearch -D cn="ldapadm,dc=hadoop,dc=com" -W -b "dc=hadoop,dc=com" objectClass=*