Red Hat System Administration III with RHCSA and RHCE Exams (RH255)

Level: Intermediate

This Red Hat System Administration III with RHCE Exam (RH255) is related to Red Hat Enterprise Linux (RHEL) 7 and is designed for experienced Linux system administrators who hold a Red Hat Certified System Administrator (RHCSA) certification or equivalent skills and who want to broaden their ability to administer Linux systems at an enterprise level.

This RH255 course is focused on deploying and managing network servers running caching Domain Name Service (DNS), MariaDB, Apache HTTPD, Postfix SMTP nullclients. You will also examine network file sharing with Network File System (NFS) and Server Message Block (SMB), iSCSI initiators and targets, advanced networking and firewall 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. This version of the course includes both the RHCSA (EX200) and RHCE (EX300) exams and at completion of the course students should be prepared to take the exams.

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).

Key Features of this RH255 Training:

  • Official Red Hat training curriculum
  • Extensive hands-on labs for enhancing practical skills
  • Bring this course to your facility

You Will Learn How To:

  • Network port security and link aggregation
  • iSCSI initiator and target configuration
  • DNS troubleshooting and caching name server
  • Providing NFS and SMB file servers
  • Apache HTTPD web server management
  • MariaDB SQL database configuration
  • Postfix SMTP nullclient for servers
  • Bash scripting for automation

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RH255 Course Information

  • Requirements

    • RHCSA certification or equivalent experience
  • Exam Information

    • Cost of the exam is included in the tuition fee price. Students must take the exam on the 5th day of class — Red Hat does not allow reschedules or issue vouchers for attendees who want to wait to take the exam at a later date.

    RH255 Course Outline

    Control services and daemons

    • Review how to manage services and the boot-up process using systemctl.

    Manage IPv6 networking

    • Configure and troubleshoot basic IPv6 networking on Red Hat Enterprise Linux systems.

    Configure link aggregation and bridging

    • Configure and troubleshoot advanced network interface functionality including bonding, teaming, and local software bridges.

    Control network port security

    • Permit and reject access to network services using advanced SELinux and firewalld filtering techniques.

    Manage DNS for servers

    • Set and verify correct DNS records for systems and configure secure DNS caching.

    Configure email delivery

    • Relay all email sent by the system to an SMTP gateway for central delivery.

    Provide block-based storage

    • Provide and use networked iSCSI block devices as remote disks.

    Provide file-based storage

    • Provide NFS exports and SMB file shares to specific systems and users.

    Configure MariaDB databases

    • Provide a MariaDB SQL database for use by programs and database administrators.

    Provide Apache HTTPD web service

    • Configure Apache HTTPD to provide Transport Layer Security (TLS)-enabled websites and virtual hosts.

    Write Bash scripts

    • Write simple shell scripts using Bash.

    Bash conditionals and control structures

    • Use Bash conditionals and other control structures to write more sophisticated shell commands and scripts.

    Configure the shell environment

    • Customise Bash startup and use environment variables, Bash aliases, and Bash functions.

    Linux containers preview

    • Preview the capabilities of Linux containers, Docker, and other related technologies in Red Hat Enterprise Linux 7.

    Comprehensive review

    • Practise and demonstrate knowledge and skills learned in Red Hat System Administration III.

    Recommended next exam or course:

    • Red Hat Certified Engineer Exam (EX300)
    • Red Hat Enterprise Virtualisation (RH318)
    • Red Hat Enterprise Deployment and Systems Management (RH401)
    • Red Hat Enterprise Clustering and Storage Management (RH436)
    • Red Hat Enterprise System Monitoring and Performance Tuning (RH442)
    • Red Hat Server Hardening (RH413)
    • Red Hat OpenStack Administration (CL210)
    • Red Hat OpenShift Administration (CL280)

    RH255 Training FAQs

    • How do I take the EX200 and EX300 exams to achieve Red Hat Certified Engineer (RHCE) certification?

      Yes! We know your busy work schedule may prevent you from getting to one of our classrooms which is why we offer convenient online training to meet your needs wherever you want. This course is available virtually as Private Team Training.

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