OpenLDAP : LDAPクライアントの設定2019/11/19

	LDAP サーバーのユーザーアカウント情報を共有できるように LDAP クライアントとしての設定をします。
[1]	OpenLDAP クライアントをインストールして設定します。

[root@node01 ~]#

dnf -y install openldap-clients sssd sssd-ldap oddjob-mkhomedir

# 認証プロバイダーを sssd に切り替え

[root@node01 ~]#

authselect select sssd with-mkhomedir --force

Profile "sssd" was selected.
The following nsswitch maps are overwritten by the profile:
- passwd
- group
- netgroup
- automount
- services

Make sure that SSSD service is configured and enabled. See SSSD documentation for more information.

- with-mkhomedir is selected, make sure pam_oddjob_mkhomedir module
  is present and oddjobd service is enabled
  - systemctl enable oddjobd.service
  - systemctl start oddjobd.service

[root@node01 ~]#

vi /etc/openldap/ldap.conf

# 最終行：自身のLDAPサーバーのURLとSuffixを追記

URI ldap://dlp.srv.world/
BASE dc=srv,dc=world

[root@node01 ~]#

vi /etc/sssd/sssd.conf

# 新規作成

# [ldap_uri], [ldap_search_base] は自身の環境に置き換え

[domain/default]
id_provider = ldap
autofs_provider = ldap
auth_provider = ldap
chpass_provider = ldap
ldap_uri = ldap://dlp.srv.world/
ldap_search_base = dc=srv,dc=world
ldap_id_use_start_tls = True
ldap_tls_cacertdir = /etc/openldap/certs
cache_credentials = True
ldap_tls_reqcert = allow

[sssd]
services = nss, pam, autofs
domains = default

[nss]
homedir_substring = /home

[root@node01 ~]#

chmod 600 /etc/sssd/sssd.conf

[root@node01 ~]#

systemctl restart sssd oddjobd

[root@node01 ~]#

systemctl enable sssd oddjobd

[root@node01 ~]#

exit

logout

Fedora 31 (Server Edition)
Kernel 5.3.7-301.fc31.x86_64 on an x86_64 (ttyS0)

Web console: https://node01.srv.world:9090/ or https://10.0.0.51:9090/

node01 login: redhat      # LDAPユーザー
Password:                 # パスワード
[redhat@node01 ~]$        # ログインできた

# LDAPパスワードの変更方法は通常通り

[redhat@node01 ~]$

passwd

Changing password for user redhat.
Current Password:        # 現在のパスワード
New password:            # 新しいパスワード
Retype new password:
passwd: all authentication tokens updated successfully.