System Administration III for Red Hat Enterprise Linux (GL254)
Course Duration
5 Days
Audience
Employees of federal, state and local governments; and businesses working with the government.
Prerequisites
Completion of GL120 (Linux Fundamentals) and GL134 (System Administration II) or equivalent RHEL administration experience. Familiarity with systemd, basic networking, user management, and package management is required.
Course Description
Build on foundational RHEL administration skills to deploy, configure, and secure the network services and server infrastructure required for senior system administration roles. Students progress from kernel and device management through systemd service control and sandboxing, then into advanced networking topics including IPv6 configuration, link aggregation with bonding and teaming, and software bridging. Network services coverage spans DNS with BIND, Postfix email, iSCSI block storage, NFS and Samba file sharing, MariaDB databases, and Apache HTTPD with TLS, virtual hosts, and CGI, with SELinux and firewalld security integrated throughout. Like all Guru Labs courses, the material is designed to provide extensive hands-on experience, with lab exercises in each chapter on live RHEL systems.
Learning Objectives
- Manage Linux kernel modules, devices, udev rules, and hardware discovery tools.
- Control services and daemons using systemd units, targets, and service sandboxing.
- Configure IPv6 networking, link aggregation with bonding and teaming, and software bridges.
- Secure network services using SELinux contexts, booleans, and firewalld zone-based rules.
- Configure BIND DNS servers with zones, access controls, forwarding, and rndc management.
- Deploy Postfix for SMTP email delivery, relay configuration, and alias management.
- Provision iSCSI block storage using targets and Open-iSCSI initiator configuration.
- Configure NFS exports and Samba file shares for cross-platform network file access.
- Administer MariaDB databases including user management, privileges, and SQL operations.
- Deploy Apache HTTPD with TLS encryption, virtual hosts, CGI, and access controls.
- Write Bash scripts with conditionals, loops, positional parameters, and control structures.
- Customize the shell environment with configuration files, prompt settings, command history, and editing modes.
Course Outline
- Linux Kernel and Devices
- Control Services and Daemons
- Manage IPv6 Networking
- Configure Link Aggregation and Bridging
- Control Network Port Security
- Manage DNS for Servers
- Configure Email Delivery
- Provide Block-based Storage
- Provide File-based Storage
- Configure MariaDB Databases
- Provide Apache HTTPD Web Services
- Write Bash Scripts
- Configure the Shell Environment
- Linux Containers Preview
Frequently Asked Questions
What does the System Administration III for Red Hat Enterprise Linux (GL254) course cover?
The course covers advanced RHEL administration and network services, including kernel and device management, systemd service control, IPv6 and link aggregation, BIND DNS, Postfix email, iSCSI and NFS/Samba storage, MariaDB, Apache HTTPD with TLS, SELinux hardening, and Bash scripting. IT Dojo delivers it as live instructor-led training with hands-on labs on live RHEL systems.
How long is IT Dojo's System Administration III for Red Hat Enterprise Linux (GL254) training?
The course is 5 Days. It is available as live remote online instruction or on-site at your facility. All sessions are instructor-led with small class sizes to ensure individual attention.
Is this course available as live remote online training?
Yes. IT Dojo offers System Administration III for Red Hat Enterprise Linux (GL254) as live remote online training. A certified instructor leads the session in real time and students work hands-on in live lab environments. On-site delivery at your government facility or contractor location is also available.
What prerequisites are recommended before this course?
Completion of GL120 (Linux Fundamentals) and GL134 (System Administration II) or equivalent RHEL administration experience. Familiarity with systemd, basic networking, user management, and package management is required.
Does IT Dojo offer this training on-site at government or DoD facilities?
Yes. IT Dojo delivers System Administration III for Red Hat Enterprise Linux (GL254) on-site at government agencies, DoD commands, military installations, and contractor facilities. On-site training is ideal for teams of four or more and can be customized to your organization's specific environment and mission requirements. Contact IT Dojo to schedule.
How do I register for this course?
IT Dojo training is employer sponsored. Your organization registers and pays for seats. To schedule System Administration III for Red Hat Enterprise Linux (GL254) for your team, contact IT Dojo via the Request Training form or call 757-216-3656. IT Dojo will work with your contracting officer, training coordinator, or program office to set up the course.