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RH254 – Red Hat System Administration III: Data Center Services for Red Hat Enterprise Linux 7

  • Length 4 days
Course overview
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Why study this course

Red Hat System Administration III: Data Center Services for Red Hat Enterprise Linux 7 (RH254) is designed for experienced Linux® system administrators who hold a Red Hat Certified System Administrator (RHCSA®) credential or possess equivalent skills and want to broaden their ability to administer Linux systems at an enterprise level.

This course is based on Red Hat® Enterprise Linux 7.

The course is focused on deploying and managing network servers running caching Domain Name Service (DNS), MariaDB, Apache HTTPD, Postfix SMTP nullclients, network file sharing with Network File System (NFS) and Server Message Block (SMB), iSCSI initiators and targets, advanced networking and firewalld configurations, and the use of Bash shell scripting to help automate, configure, and troubleshoot the system.

Through lectures and hands-on labs, students who have already earned the RHCSA certification will be exposed to all competencies covered by the Red Hat Certified Engineer (RHCE) exam (EX300).

Note: This course does not cover all RHCSA tasks. Students who need a review of RHCSA skills are encouraged to attend RHCSA Rapid Track Course (RH199).

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What you’ll learn

As a result of attending this course, you should be able to perform the key tasks needed as a full-time Linux system engineer or consultant. This course introduces enterprise Linux advanced administration topics, including service and daemon control, network configuration and troubleshooting, NFS and SAMBA file server configuration, Apache HTTP web server management, MariaDB SQL database configuration, Postfix SMTP configuration, DNS troubleshooting, and bash scripting.

You should be able to demonstrate these skills:

  • Control services and daemons.

  • Manage networking.

  • Configure link aggregation, bridging, teaming, and bonding.

  • Configure filters with firewalls.

  • Permit and reject access to network services using SELinux.

  • Manage DNS servers.

  • Configure SMTP email delivery.

  • Provide iSCSI block storage.

  • Configure NFS and SAMBA file-based storage.

  • Configure MariaDB SQL database.

  • Configure Apache HTTPD with TLS-enabled virtual hosts.

  • Write simple bash automation scripts.

Red Hat at DDLS

Red Hat is the leading provider of open source, enterprise IT solutions. DDLS is proud to offer clients the ability to attend over 40 official Red Hat training courses through a resell agreement with Red Hat. Maximise the return on your Red Hat technology investment with lab-intensive, Instructor-Led Training run by Red Hat themselves. Alternatively, for those unable to attend training, log in and learn with Red Hat Online Learning.

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Quality instructors and content

Expert instructors with real world experience and the latest vendor- approved in-depth course content.

Partner-Preferred Supplier

Chosen and awarded by the world’s leading vendors as preferred training partner.

Ahead of the technology curve

No matter your chosen technologies or platforms, we can help you stay one step ahead.

Who is the course for?

This course is intended for experienced Linux administrators wishing to learn enterprise-level automation techniques through scripting, how to deploy and secure network services, and how to manage other key security features of Red Hat Enterprise Linux. Prior to taking this course, you should have earned your RHCSA or possess equivalent skills.

Course subjects

Control services and daemonsReview how to manage services and the boot-up process using systemctl.

Manage IPv6 networkingConfigure and troubleshoot basic IPv6 networking on Red Hat Enterprise Linux systems

Configure link aggregation and bridgingConfigure and troubleshoot advanced network interface functionality including bonding, teaming, and local software bridges

Control network port securityPermit and reject access to network services using advanced SELinux and firewalld filtering techniques

Manage DNS for serversSet and verify correct DNS records for systems and configure secure DNS caching

Configure email deliveryRelay all email sent by the system to an SMTP gateway for central delivery

Provide block-based storageProvide and use networked iSCSI block devices as remote disks

Provide file-based storageProvide NFS exports and SMB file shares to specific systems and users

Configure MariaDB databasesProvide a MariaDB SQL database for use by programs and database administrators

Provide Apache HTTPD web serviceConfigure Apache HTTPD to provide Transport Layer Security (TLS)-enabled websites and virtual hosts

Write Bash scriptsWrite simple shell scripts using Bash

Bash conditionals and control structuresUse Bash conditionals and other control structures to write more sophisticated shell commands and scripts

Configure the shell environmentCustomise Bash startup and use environment variables, Bash aliases, and Bash functions

Comprehensive reviewPractice and demonstrate knowledge and skills learned in this course


  • RHCSA certification or equivalent experience

For candidates who have not earned their RHCSA, confirmation of the correct skill set knowledge can be obtained by passing the online skills assessment.


DDLS offers certification and training in Red Hat, JBoss and Ansible through our partnership with Red Hat. This arrangement requires DDLS to provide your details to Red Hat for course and exam registration purposes.

Terms & Conditions

The supply of this course by DDLS is governed by the booking terms and conditions. Please read the terms and conditions carefully before enrolling in this course, as enrolment in the course is conditional on acceptance of these terms and conditions.

Request Course Information

By submitting an enquiry, you agree to our privacy policy and receiving email and other forms of communication from us. You can opt-out at any time.