RH254 – System Administration III


Red Hat System Administration III (RH254) is designed for experienced Linux administrators who require networking and security administration skills. With a heavy emphasis on practical, hands-on labs, this course is tightly aligned with experienced Linux administrators’ job tasks and the skills required for advancement. Focus is placed on enhancing the students’ automation skills to securely configure, deploy and manage network services including DNS, Apache, SMTP, and network file sharing. In addition, this course emphasizes security, including monitoring, packet filtering, acess controls, and SELinux. At the completion of this course, students already familiar with the RHCT/RHCSA administration skills will have exposure to all competencies tested by the RHCSA and RHCE exams.


  • Enhancing user security
  • Disk management with iSCSI
  • System and network activity monitoring
  • Network management and packet filtering
  • Software management
  • Web service management
  • File sharing across platforms
  • Basic SMTP management


  • Senior Linux system administrators who require networking and security administration skills
  • Linux IT professionals who currently have RHCT/RHCSA certification, and are interested in earning an RHCE certification
  • Linux IT professionals that can demonstrate the competencies needed to earn an RHCT/RHCSA, but have not passed the RHCSA exam provided with the Red Hat System Administration II course


  • RHCSA Rapid Track Course (RH200) or Red Hat System Administration I & II
  • Equivalent experience to the RHCSA Rapid Track Course
  • Skills required to earn an RHCT/RHCSA certification
  • Confirmation of the correct skill set required for this course can be obtained by passing the online pre-assessment quiz at redhat.com/explore/pre-assessment


  • Getting Started with the Classroom Environment;
  • Enhance User Security;
  • Bash Scripting and Tools;
  • File Security with GnuPG;
  • Software Management;
  • Network Monitoring;
  • Route Network Traffic;
  • Secure Network Traffic;
  • NTP Server Configuration;
  • Filesystems and Logs;
  • Centralized and Secure Storage;
  • SSL-encapsulated Web Services;
  • Web Server Additional Configuration;
  • Basic SMTP Configuration;
  • Caching-Only DNS Server;
  • File Sharing with NFS;
  • File Sharing with CIFS;
  • File Sharing with FTP;
  • Troubleshooting Boot Process.

Getting Started with the Classroom Environment

  • Given a virtualized environment, begin to administrate multiple systems using prerequisite skills

Enhance User Security

  • Configure system to use Kerberos to verify credentials and grant privileges via sudo

Bash Scripting and Tools

  • Automate system administration tasks utilizing Bash scripts and text-based tools

File Security with GnuPG

  • Secure files with GnuPG.

Software Management

  • Use yum plugins to manage packages and understand the design of packages to build a simple package

Network Monitoring

  • Profile running services then capture and analyze network traffic

Route Network Traffic

  • Configure system to route traffic and customize network parameters with sysctl

Secure Network Traffic

  • Secure network traffic through SSH port forwarding and iptables filtering/network address translation (NAT)

NTP Server Configuration

  • Configure an NTP server

Filesystems and Logs

  • Manage local file system integrity, monitor system over time, and system logging

Centralized and Secure Storage

  • Acess centralized storage (iSCSI) and encrypt filesystems

SSL-encapsulated Web Services

  • Understand SSL certificates and deploy an SSL encapsulated web service

Web Server Additional Configuration

  • Configure web server with virtual hosts, dynamic content, and authenticated diretories

Basic SMTP Configuration

  • Configure an SMTP server for basic operation (null client, receiving mail, smarthost relay)

Caching-Only DNS Server

  • Understand DNS resource records and configure a caching-only name server

File Sharing with NFS

  • Configure file sharing between hosts with NFS

File Sharing with CIFS

  • Configure file and print sharing between hosts with CIFS

File Sharing with FTP

  • Configure file sharing with anonymous FTP

Troubleshooting Boot Process

  • Understand the boot process and recover unbootable systems with rescue mode

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RH254 – System Administration III

Red Hat | 27h - Laboral: 09h00 - 17h00


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