Authenticate CentOS 7 Client Machine From OpenLDAP Server

Authenticate CentOS Linux 7 Client Machine from OpenLDAP Server

Benefit to authenticate CentOS Linux 7 client machine from OpenLDAP Server is to Centralized the Linux Base environment. Use single user id to connect any CentOS Linux 7 client machine. User access own files and folder from any CentOS Linux 7 client machine.

Check the hosts file of CentOS Linux 7 client machine type the below command.

cat /etc/hosts

In the above image you can see that Host Name and Full Qualified Domain Name (Host Name + Domain Name) not edit in hosts file to resolve DNS Server IP address or any other CentOS Linux 7 client machine IP Address because DNS Server is use to resolve Host Name to IP Address and IP address to Host Name.

Check the Host Name file of CentOS Linux 7 Client Machine type the below command.

cat /etc/hostname

Edit the Name Server Addresses in "resolv.conf" file that available in "/etc/resolv.conf" directory. To Check the Name Server Addresses in "resolv.conf"  file type the below command, you can edit the "resolv.conf" file by use of vi  editor to add the Name Server Addresses.

cat /etc/resolv.conf

To Check DNS Server Full Qualified Domain Name "FQDN" is resolving type the below command.

nslookup ldap-dns.pakistan.local

Note: DNS Server and OpenLDAP Server is Same machine.

To check the CentOS Linux 7 client machine IP address type the below command.

cat /etc/sysconfig/network-scripts/ifcfg-ens33

Note: DNS1 address must be OpenLDAP Server IP Address.

To Install OpenLDAP client packages for Authenticate Centos Linux 7 client machine from OpenLDAP Server type the below command.

yum install -y openldap-clients nss-pam-ldapd

OpenLDAP client package has successfully installed.

To Authenticate CentOS Linux 7 client machine form OpenLDAP Server type the below command.

authconfig-tui

Select  Below Options then press next.

Use LDAP

Use LDAP Authentication

Set OpenLDAP Server Full Qualified Domain Name and Base DN (Domain Name) as mention below then press OK.

Server: ldap://ldap-dns.pakistan.local/

Base DN: dc=pakistan,dc=local

Type the below commands to verify that users are authenticate from OpenLDAP Server to CentOS Linux 7 client machine.

getent passwd user1

getent passwd user2

getent passwd owais

In the above image you can see that OpenLDAP users has successfully authenticated.

To login in CentOS Linux 7 client machine from OpenLDAP user "user1" type the below command.

su - user1

CentOS Linux 7 Client Machine Successfully Authenticate from OpenLDAP Server.

To Mount the Home Directory of users in CentOS Linux 7 client machine from OpenLDAP Server click on >>Read.

Thanks for read this Article

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