Using the authconfig command-line tool

To update all of the configuration files and services required for system authentication, you can run the authconfig command-line tool, as shown in the following example: 

 authconfig --enableldap --ldapserver=ldap://winserver.tem.test.com:389 
  --ldapbasedn="dc=tem,dc=test,dc=com" --enablekrb5 
  --krb5realm TEM.TEST.COM --krb5kdc winserver.tem.test.com:88 
  --krb5adminserver winserver.tem.test.com:749 --update
where:
--enableldap
Specifies to configure to connect the system with the Windows Active Directory domain using LDAP with Kerberos authentication.
--ldapserver
Specifies the address of the LDAP server such as ldap://winserver.tem.test.com
--ldapbasedn
Specifies to retrieve the user information using the listed Distinguished Name (DN), such as dc=tem,dc=test,dc=com
--enablekrb5
Enables the Kerberos password authentication method.
--krb5realm
Configures the realm for the Kerberos server, such as TEM.TEST.COM. Ensure you specify the realm name in uppercase.
--krb5kdc
Specifies the Key Distribution Center (KDC) for issuing Kerberos tickets, such as winserver.tem.test.com.
--krb5adminserver
Specifies the administration servers running kadmind, such as winserver.tem.test.com.
--update
Applies all the configuration settings.

For more information about how to use this command, see Configuring Authentication from the Command Line.