Course Details
Red Hat Enterprise Directory Services and Authentication (RH423)


  • Red Hat Certified Enterprise Directory Service and Authentication (RH423): This module will help out us to understand, how to manage and deploy directory services of Red Hat Enterprise Linux Systems.  It equips senior administrators with skills needed to manage and deploy the Red Hat Directory servers on Red Hat Enterprise Linux Systems.  Students will gain an understanding of the basic concepts, configurations, and management of LDAP Based services.   After completion of this program person can work on Open LDAP Successfully.


  • System Administrators, conultants and other IT professionals.


  • Red Hat Certified Engineer (RHCE) certification is required to take the exam (EX423) or enroll in a version of this course that includes the exam (RH424).

Course Content:


 Unit 1: Introduction to directory services

  • What is a directory ?
  • LDAP: models, schema and attributes

 Unit 2: The LDAP naming model

  • Directory information trees and Distinguished Names
  • X.500 and "internet" naming suffiexes
  • Planning the directory hierarchy

 Unit 3: Red Hat Directory Server basic configuration

  • Installation and setup of Red Hat Directory Server
  • Using the Red Hat console
  • Using logging to monitor Red Hat Directory Server activity
  • Backing up and resotring the directory
  • Basic performance tuning with indexes

 Unit 4: Searching and modifying the LDAP directory

  • Using command-line utilities to search the directory
  • Search filter syntax
  • Updating the directory

 Unit 5: Red Hat Directory Server authintication and security

  • Configuring TLS security
  • Using access control insturctions (ACIs)
  • ACIs and the Red Hat console

 Unit 6: Linux user authentication with NSS and PAM

  • Understanding authentifation and authorization
  • Name service switch (NSS)
  • Advanced pluggable authentication modules (PAM) configuration

 Unit 7: Centralized user authentication with LDAP

  • Central account management with LDAP
  • Using migration scripts to migrate existing data into a LDAP server
  • LDAP user authentication

 Unit 8: Kerberos and LDAP

  • Introduction to Kerberos
  • Configuring the Kerberos key distribution center (KDC) and clients
  • Configuring LDAP to support Kerberos

 Unit 9: Directory referrals and replication

  • Referrals and replication
  • Single master configuration
  • Multiple master configuration
  • Planning for directory server availiability

 Unit 10: Cross-platform centralized identity management

  • Syncronizing Red Hat Directory Server with Active Directory
  • Managing user with Windbind and LDAP
  • Mapping attributes between Linux and Microsoft Windows

Certification Exam: Certification Exam:

  • This is exam is performance-based, meaning that candidates must perform tasks on a live system, rather than answering questions about how one might perform those tasks.
  • 11 Training units will be provided.
  • Official course Material will be required to appear this exam.
  • Exam Duration – 3hrs.
  • Exam Fees – Rs. 10,000/- per candidate. Fees should be paid by DD drown in favor of  “Red Hat India Pvt. Ltd.” Payable at Mumbai.
  • Exam results are emailed within 5 business days following the exam

Sample Certificate:

RHCVA Certificate..

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