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Red Hat Certified Security Specialist (RHCSS)
Red Hat Certified Datacenter Specialist (RHCDS)

The full RHCE curriculum consists of three courses or modules:


RH423 red hat enterprise directory services  and authentication

Course Description

RH423 is an intensive course that provides four days of instruction and labs on cross-platform integration of directory services to provide authentication or information services across the enterprise


  • Experienced UNIX or Linux system administrators responsible for user account information and secured enterprise authentication mechanisms of one or more Linux systems    
  • System administrators who have configured directory services and authentication on other operating systems but now want to perform those tasks on a Linux system.    
  • Experienced system administrators wanting to integrate directory service and authentication mechanisms across multiple operating systems.



  • RHCE certification or equivalent experience  
  • Course participants without an RHCE certification are encouraged to check their experience levels by taking a free pre-assessment exam at

Course Content

  • Understanding basic LDAP concepts
  • Configuration and management of Red Hat Directory Server
  • Managing user authentication with PAM and glibc NSS
  • Using Kerberos and LDAP to centrally manage user authentication
  • Using LDAP referrals and replication for distributed, highly available Directory Server performance
  • Exploring options for integration with Microsoft Active Directory authentication
  • Simplified management of authentication with Red Hat Enterprise IPA
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