Installing & Configuring OpenLDAP Server On CentOS 6.4 In this post I will try to explain, how to install and configure OpenLDAP Server 2.4 on CentOS 6.4. Here I have a minimal installation of CentOS 6.4 x86_64.
How to Setup LDAP server in CentOS 7 Enable directory server and directory admin services automatically on every reboot: Start directory server’s service: Stop directory server’s service: Start directory admin: Stop directory admin: Check the status of the services: Restart services.

How to LDAP Configuration and Install on CentOS 7 / RHEL 7 / SL7 / OL7. LDAP is abbreviated as Light Weight Directory Access Protocol. It is a type of authentication mechanism which provide centralized authentication to the users and across different systems.This LDAP is independent mechanism which provide centralized login from Linux to other operating system remotely such as, Linux & windows, etc. This mechanism is purely works on two default ports such as 389 & 636.

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Directory Services In all and different platforms

Microsoft: Active directory Services
MAC: Apple DIR Services
NOVEL: Novel DIR Service
Sun Solaris: Sun DIR Services
Linux: Redhat DIR Services, Fedora DIR Services, etc.

OpenLDAP Servers

This is a default application in Linux versions which implement LDAP Server practically This application is a free source & open source application which comes inbuilt with OS to configure LDAP.

Centralized Login Services in Linux
NIS (LXL) Login
NIS + = LXW Login
Samba PDC( Primary Domain Controller)= LXW Login
Samba windbind = WXL Login
LDAP = LXW &LXL Login

LDAP & NIS Servers

This both are the default services in Linux which can be implement by using ypserv & open LDAP – Servers. Default applications to provide centralized login to the user and across different system, but there are some difference between these two:

NIS
LDAP

1. NIS: It is platform Dependent. It works on random ports. Its is less secure because it transfers the passwords in decrypted format. It has no firewall support. It has no domain hierarchy support.
2. LDAP: It is a platform independent. It works on standard ports like 389, 636. It is more secure because it transfers the user’s password by encrypting it with the help of 636 port. Firewall supported because it works on standard ports. It has Hierarchy domain support. BDB (Berkeley Database) is the LDAP Database by default comes with BDB application which maintain LDAP database.

Structure of LDAP Database:

LDAP structure can be maintain with the help of object class and schema

Object Class: The collection of properties like DN(Distinguish Name), DC (Domain Container), OU (Organizational Unit) & UID is called object class.
Schema: The collection of users properties like Pin code, emp ID, etc is called schema.

Requirement of LDAP

Software = openldap* ldap* nss* db*
Config file = vi / etc/ openldap / sladp.conf
Files= /usr/share / openldap/ migration / migrate_common.ph
Data Base = /var / lib / ldap
Service = Ldap
Port = 389, 636
Daemon = ldap
DBfile DB_CONFIG.sample

To configure LDAP (In LDAP server)

Step-1 (Check & install the s/w)

Step-2 (Check & change the hostname)

Step-3 (Edit 1st ldap file)

In 85th line change domain

In 86th line

In last line provide password

:wq

Step-4 (Edit 2nd ldap file)

Phil hart photography. :wq

Step-5(Copy DB file into Default Dir)

Step-6 (Rename filename)

Step-7 (Create Domain File)

:wq

Step-8 (Add user and passwords)

Step-9 (Create ldap DB)

Step-10 (Add all 3 filesinto LDAP DB)

Note:- Follow above same command to add ou.ldif and techbrown.com.ldif (repeat the process)

Configure NFS Server

:wq

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To check in client system

Step-1 (Mount to server home dir to share user dir)

Step-2 (To check user data, move to server & check)

Step-3 (Inclient system to login from GUI)

Centos Install Server With Gui

:wq

Step-4 (Restart the services permanent)

Step-5 (To give client User No login permission)

Note:- To give the user –No login permission the service should started permanently
# systemctl enable network
# systemctl enable portmap

How To Install Ldap In Ubuntu

Final Results

How To Install Ldap Server In Centos 7

LDAP is the authentication protocol that must be added on each enterprise Linux distributions to increase security and usage of Linux based distributions. For more support on this article use the comment section below. and congratulations now you have added the LDAP on your servers.

How To Install Ldap In Centos Server