Configure LDAP Server2015/12/02

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

dlp:~ #

zypper -n install openldap2 openldap2-client

dlp:~ #

vi /etc/sysconfig/openldap

# line 37: change

OPENLDAP_START_LDAPI="

yes

# line 149: change

OPENLDAP_CONFIG_BACKEND="

ldap

dlp:~ #

mv /etc/openldap/slapd.conf /etc/openldap/slapd.conf.org

dlp:~ #

touch /etc/openldap/slapd.conf

dlp:~ #

rm -rf /etc/openldap/slapd.d/*

dlp:~ #

slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d

config file testing succeeded

dlp:~ #

vi /etc/openldap/slapd.d/cn=config/olcDatabase\={0}config.ldif

# line 2: remove this line

# CRC32 xxxxxxxx

# line 6: change

olcAccess:

{0}to * by dn.exact=gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth manage by * break

dlp:~ #

chown -R ldap. /etc/openldap/slapd.d

dlp:~ #

chmod -R 700 /etc/openldap/slapd.d

dlp:~ #

/etc/init.d/ldap start

dlp:~ #

chkconfig ldap on

# generate encrypted password

dlp:~ #

slappasswd

New password:
Re-enter new password:
{SSHA}xxxxxxxxxxxxxxxxxxxxxxxx

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

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"

[2]	Import basic Schemas.

dlp:~ #

ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/core.ldif

SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "cn=core,cn=schema,cn=config"

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"

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"

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"

[3]	Set your domain name on LDAP DB.

# generate encrypted password

dlp:~ #

slappasswd

New password:
Re-enter new password:
{SSHA}xxxxxxxxxxxxxxxxxxxxxxxx

dlp:~ #

vi backend.ldif

# create new

# replace to your own domain name for "dc=***,dc=***" section

# specify the password generated above for "olcRootPW" section

dn: cn=module,cn=config
objectClass: olcModuleList
cn: module
olcModulepath: /usr/lib/openldap
olcModuleload: back_hdb

dn: olcDatabase=hdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcHdbConfig
olcDatabase: {1}hdb
olcDbDirectory: /var/lib/ldap
olcDbIndex: objectClass eq,pres
olcDbIndex: ou,cn,mail,surname,givenname eq,pres,sub
olcSuffix: dc=srv,dc=world
olcRootDN: cn=Manager,dc=srv,dc=world
olcRootPW: {SSHA}xxxxxxxxxxxxxxxxxxxxxxxx
olcAccess: {0}to attrs=userPassword,shadowLastChange by 
  dn="cn=Manager,dc=srv,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=srv,dc=world" write by * read

dlp:~ #

ldapadd -Y EXTERNAL -H ldapi:/// -f backend.ldif

SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "cn=module,cn=config"

adding new entry "olcDatabase=hdb,cn=config"

dlp:~ #

vi basedomain.ldif

# replace to your own domain name for "dc=***,dc=***" section

dn: dc=srv,dc=world
objectClass: top
objectClass: dcObject
objectclass: organization
o: Server World
dc: Server

dn: cn=Manager,dc=srv,dc=world
objectClass: organizationalRole
cn: Manager
description: Directory Manager

dn: ou=People,dc=srv,dc=world
objectClass: organizationalUnit
ou: People

dn: ou=Group,dc=srv,dc=world
objectClass: organizationalUnit
ou: Group

dlp:~ #

ldapadd -x -D cn=Manager,dc=srv,dc=world -W -f basedomain.ldif

Enter LDAP Password:

# directory manager's password

adding new entry "dc=srv,dc=world"

adding new entry "cn=Manager,dc=srv,dc=world"

adding new entry "ou=People,dc=srv,dc=world"

adding new entry "ou=Group,dc=srv,dc=world"

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