OpenLDAP : LDAP サーバーの設定2024/04/18

	各サーバー間でユーザーのアカウント情報を共有できるように LDAP サーバーを構築します。
[1]	OpenLDAP をインストールします。

root@dlp:~ #

pkg install -y openldap26-server

root@dlp:~ #

cp -p /usr/local/etc/openldap/slapd.conf /usr/local/etc/openldap/slapd.conf.org

root@dlp:~ #

cat <<'EOF' > /usr/local/etc/openldap/slapd.conf
pidfile /var/run/openldap/slapd.pid
argsfile /var/run/openldap/slapd.args
EOF

root@dlp:~ #

mkdir /usr/local/etc/openldap/slapd.d

root@dlp:~ #

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

config file testing succeeded

root@dlp:~ #

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

# 2行目 : 行を削除
# CRC32 e5d2e79e

# 5行目 : 変更
olcAccess: {0}to * by dn.exact=gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth manage by * break

root@dlp:~ #

vi /usr/local/etc/openldap/slapd.d/cn=config/olcDatabase\={1}monitor.ldif

# 新規作成

dn: olcDatabase={1}monitor
objectClass: olcDatabaseConfig
olcDatabase: {1}monitor
olcAccess: {0}to * by dn.exact=gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth manage by * break
olcAddContentAcl: FALSE
olcLastMod: TRUE
olcMaxDerefDepth: 15
olcReadOnly: FALSE
olcMonitoring: FALSE
structuralObjectClass: olcDatabaseConfig
creatorsName: cn=config
modifiersName: cn=config

root@dlp:~ #

chown -R ldap:ldap /usr/local/etc/openldap/slapd.d

root@dlp:~ #

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

root@dlp:~ #

vi /etc/rc.conf

# 最終行に追記

slapd_enable="YES"
slapd_flags='-h "ldapi://%2fvar%2frun%2fopenldap%2fldapi/ ldap:///"'
slapd_sockets="/var/run/openldap/ldapi"

root@dlp:~ #

vi /usr/local/etc/rc.d/slapd

# 213行目 : コメントにしてその下に行追記

#/usr/local/sbin/slapcat | ${compress_program} > ${backup_file}
/usr/local/sbin/slapcat -n 2 | ${compress_program} > ${backup_file}

root@dlp:~ #

service slapd start

Performing sanity check on slap configuration: OK
Starting slapd.

[2]	OpenLDAP の管理者パスワードを設定します。

# 管理者パスワード生成

root@dlp:~ #

slappasswd

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

root@dlp:~ #

vi chrootpw.ldif

# olcRootPW に生成した管理者パスワードを指定する

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]	基本的なスキーマを読み込んでおきます。

root@dlp:~ #

ldapadd -Y EXTERNAL -H ldapi:/// -f /usr/local/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"

root@dlp:~ #

ldapadd -Y EXTERNAL -H ldapi:/// -f /usr/local/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 /usr/local/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 /usr/local/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]	自身のドメイン名を設定します。

# ディレクトリマネージャーのパスワード生成

root@dlp:~ #

slappasswd

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

root@dlp:~ #

vi backend.ldif

# 新規作成
# [dc=***,dc=***] の箇所は自身のドメイン名に置き換え
# [olcRootPW] には生成したパスワードを指定

dn: cn=module,cn=config
objectClass: olcModuleList
cn: module
olcModulepath: /usr/local/libexec/openldap
olcModuleload: back_mdb

dn: olcDatabase={2}mdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcMdbConfig
olcDatabase: {2}mdb
olcSuffix: dc=srv,dc=world
olcDbDirectory: /var/db/openldap-data
olcRootDN: cn=Manager,dc=srv,dc=world
olcRootPW: {SSHA}KWZUYIvvcGaIahQX7yLdo0Cw8B6sl5DJ
olcDbIndex: objectClass eq
olcLastMod: TRUE
olcMonitoring: TRUE
olcDbCheckpoint: 512 30
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

root@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={2}mdb,cn=config"

root@dlp:~ #

vi basedomain.ldif

# 新規作成
# [dc=***,dc=***] の箇所は自身のドメイン名に置き換え

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

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=groups,dc=srv,dc=world
objectClass: organizationalUnit
ou: groups

root@dlp:~ #

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

Enter LDAP Password:

# 上で設定したディレクトリマネージャーのパスワード

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=groups,dc=srv,dc=world"