Configure LDAP Server

Configure LDAP Server 2015/04/15

	Configure LDAP Server in order to share users' accounts in your local networks.
[1]	Install OpenLDAP Server.

[root@dlp ~]#  yum -y install openldap-servers openldap-clients [root@dlp ~]#  cp /usr/share/openldap-servers/DB_CONFIG.example /var/lib/ldap/DB_CONFIG  [root@dlp ~]#  chown ldap. /var/lib/ldap/DB_CONFIG  [root@dlp ~]#  systemctl start slapd  [root@dlp ~]#  systemctl enable slapd

[2]	Set OpenLDAP admin password.

# generate encrypted password [root@dlp ~]#  slappasswd  New password: Re-enter new password: {SSHA}xxxxxxxxxxxxxxxxxxxxxxxx [root@dlp ~]#  vi chrootpw.ldif # specify the password generated above for "olcRootPW" section dn: olcDatabase={0}config,cn=config changetype: modify add: olcRootPW olcRootPW: {SSHA}xxxxxxxxxxxxxxxxxxxxxxxx [root@dlp ~]#  ldapadd -Y EXTERNAL -H ldapi:/// -f chrootpw.ldif  SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 modifying entry "olcDatabase={0}config,cn=config"

[3]	Import basic Schemas.

[root@dlp ~]#  ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/cosine.ldif  SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 adding new entry "cn=cosine,cn=schema,cn=config" [root@dlp ~]#  ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/nis.ldif  SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 adding new entry "cn=nis,cn=schema,cn=config" [root@dlp ~]#  ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/inetorgperson.ldif  SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 adding new entry "cn=inetorgperson,cn=schema,cn=config"

[4]	Set your domain name on LDAP DB.

# generate directory manager's password [root@dlp ~]#  slappasswd  New password: Re-enter new password: {SSHA}xxxxxxxxxxxxxxxxxxxxxxxx [root@dlp ~]#  vi chdomain.ldif # replace to your own domain name for "dc=***,dc=***" section # specify the password generated above for "olcRootPW" section 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=Manager,dc=server,dc=world" read by * none dn: olcDatabase={2}hdb,cn=config changetype: modify replace: olcSuffix olcSuffix: dc=server,dc=world dn: olcDatabase={2}hdb,cn=config changetype: modify replace: olcRootDN olcRootDN: cn=Manager,dc=server,dc=world dn: olcDatabase={2}hdb,cn=config changetype: modify add: olcRootPW olcRootPW: {SSHA}xxxxxxxxxxxxxxxxxxxxxxxx dn: olcDatabase={2}hdb,cn=config changetype: modify add: olcAccess olcAccess: {0}to attrs=userPassword,shadowLastChange by dn="cn=Manager,dc=server,dc=world" write by anonymous auth by self write by * none olcAccess: {1}to dn.base="" by * read olcAccess: {2}to * by dn="cn=Manager,dc=server,dc=world" write by * read [root@dlp ~]#  ldapmodify -Y EXTERNAL -H ldapi:/// -f chdomain.ldif  SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 modifying entry "olcDatabase={1}monitor,cn=config" modifying entry "olcDatabase={2}hdb,cn=config" modifying entry "olcDatabase={2}hdb,cn=config" modifying entry "olcDatabase={2}hdb,cn=config" [root@dlp ~]#  vi basedomain.ldif # replace to your own domain name for "dc=***,dc=***" section dn: dc=server,dc=world objectClass: top objectClass: dcObject objectclass: organization o: Server World dc: Server dn: cn=Manager,dc=server,dc=world objectClass: organizationalRole cn: Manager description: Directory Manager dn: ou=People,dc=server,dc=world objectClass: organizationalUnit ou: People dn: ou=Group,dc=server,dc=world objectClass: organizationalUnit ou: Group [root@dlp ~]#  ldapadd -x -D cn=Manager,dc=server,dc=world -W -f basedomain.ldif  Enter LDAP Password:  # directory manager's password adding new entry "dc=server,dc=world" adding new entry "cn=Manager,dc=server,dc=world" adding new entry "ou=People,dc=server,dc=world" adding new entry "ou=Group,dc=server,dc=world"

[5]	If Firewalld is running, allow LDAP service. LDAP uses 389/TCP.

[root@dlp ~]#  firewall-cmd --add-service=ldap --permanent  success [root@dlp ~]#  firewall-cmd --reload  success