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EX423 Directory Services and Authentication Expertise
Required for the Red Hat Certified Architect (RHCA), Red Hat Certified Datacenter Specialist (RHCDS) and the Red Hat Certified Security Specialist (RHCSS) certification tracks or can be taken independently as a stand-alone credential in its own right.
The EX423 Directory Services and Authentication Expertise Exam is only available to current RHCE's and consists of the following exam:
- Directory Service Configuration and User Authentication: 4.0 hours
In order to earn the EX423 Directory Services and Authentication Certificate of Expertise, one must earn a score of 70 or higher.
Candidates who earn this certification should be able to carry out the following objectives:
- Install Red Hat Directory Server
- configure the default LDAP suffix
- configure the administrative user
- configure a slave replica
- Configure Red Hat Directory Server for TLS communication
- request a certificate from a certificate authority (CA)
- install CA-signed server certificate
- Configure command-line tools to
- Use TLS
- Use a default LDAP suffix
- Configure Red Hat Directory Server access through user ACLs
- Configure write referrals
- Migrate NIS users and groups into LDAP
- Create and modify entries of the inetOrgPerson object class
- Import user information from an LDIF file
- Export specific user information to an LDIF file
- Configure a system to authenticate using LDAP
- Configure a system to authenticate using Active Directory(tm)



