OpenLDAP : Configure LDAP Client2018/06/05 |
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Configure LDAP Client in order to share users' accounts in your local networks.
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| [1] | Configure LDAP Client. |
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root@www:~#
apt -y install libnss-ldap libpam-ldap ldap-utils (1) specify LDAP server's URI +---------------------| Configuring ldap-auth-config |----------------------+ | Please enter the URI of the LDAP server to use. This is a string in the | | form of ldap://<hostname or IP>:<port>/. ldaps:// or ldapi:// can also | | be used. The port number is optional. | | | | Note: It is usually a good idea to use an IP address because it reduces | | risks of failure in the event name service problems. | | | | LDAP server Uniform Resource Identifier: | | | | ldap://dlp.srv.world/_________________________________________________ | | | | <Ok> | | | +---------------------------------------------------------------------------+ (2) specify suffix +---------------------| Configuring ldap-auth-config |----------------------+ | Please enter the distinguished name of the LDAP search base. Many sites | | use the components of their domain names for this purpose. For example, | | the domain "example.net" would use "dc=example,dc=net" as the | | distinguished name of the search base. | | | | Distinguished name of the search base: | | | | dc=srv,dc=world_______________________________________________________ | | | | <Ok> | | | +---------------------------------------------------------------------------+ (3) specify LDAP version (generally OK to select Version [3]) +---------------------| Configuring ldap-auth-config |---------------------+ | Please enter which version of the LDAP protocol should be used by | | ldapns. It is usually a good idea to set this to the highest available | | version. | | | | LDAP version to use: | | | | 3 | | 2 | | | | | | <Ok> | | | +--------------------------------------------------------------------------+ (4) select the one you like. ( this example selects [Yes] ) +---------------------| Configuring ldap-auth-config |----------------------+ | | | This option will allow you to make password utilities that use pam to | | behave like you would be changing local passwords. | | | | The password will be stored in a separate file which will be made | | readable to root only. | | | | If you are using NFS mounted /etc or any other custom setup, you should | | disable this. | | | | Make local root Database admin: | | | | <Yes> <No> | | | +---------------------------------------------------------------------------+ (5) select the one you like. ( this example selects [No] )
+-------------------| Configuring ldap-auth-config |-------------------+
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| Choose this option if you are required to login to the database to |
| retrieve entries. |
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| Note: Under a normal setup, this is not needed. |
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| Does the LDAP database require login? |
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| <Yes> <No> |
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+----------------------------------------------------------------------+
(6) specify LDAP admin account's suffix
+-------------| Configuring ldap-auth-config |-------------+
| This account will be used when root changes a password. |
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| Note: This account has to be a privileged account. |
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| LDAP account for root: |
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| cn=admin,dc=srv,dc=world_____________________________ |
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| <Ok> |
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+----------------------------------------------------------+
(7) specify password for LDAP admin account +---------------------| Configuring ldap-auth-config |----------------------+ | Please enter the password to use when ldap-auth-config tries to login to | | the LDAP directory using the LDAP account for root. | | | | The password will be stored in a separate file /etc/ldap.secret which | | will be made readable to root only. | | | | Entering an empty password will re-use the old password. | | | | LDAP root account password: | | | | _________________________________________________________________________ | | | | <Ok> | | | +---------------------------------------------------------------------------+
root@www:~#
vi /etc/nsswitch.conf # line 7: add passwd: compat systemd ldap group: compat systemd ldap shadow: compat
root@www:~#
vi /etc/pam.d/common-password # line 26: change ( remove [use_authtok] ) password [success=1 user_unknown=ignore default=die] pam_ldap.so try_first_pass
root@www:~#
vi /etc/pam.d/common-session # add to the end if need (create home directory automatically at initial login) session optional pam_mkhomedir.so skel=/etc/skel umask=077
root@www:~#
Ubuntu 18.04 LTS www.srv.world ttyS0 www login: ubuntu # LDAP user Password: Welcome to Ubuntu 18.04 LTS (GNU/Linux 4.15.0-20-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage System information as of Tue Jun 5 11:12:53 JST 2018 System load: 0.07 Processes: 92 Usage of /: 6.3% of 28.45GB Users logged in: 0 Memory usage: 3% IP address for ens3: 10.0.0.31 Swap usage: 0% * Meltdown, Spectre and Ubuntu: What are the attack vectors, how the fixes work, and everything else you need to know - https://ubu.one/u2Know 16 packages can be updated. 8 updates are security updates. Creating directory '/home/ubuntu'. ubuntu@www:~$ # just logined # changing password is like follows ubuntu@www:~$ Enter login(LDAP) password: # current one New password: # new one Re-enter new password: LDAP password information changed for ubuntu passwd: password updated successfully ubuntu@www:~$ # just changed |
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