Linux System Security

Strengthen your Linux system security skills

Over four-days, our Linux System Security course teaches system administrators the skills needed to identify and close vulnerabilities. You'll gain practical experience with auditing, hardening and protecting Linux environments, knowledge that helps you to secure systems, increase resilience, and meet compliance standards. 

Learning objectives
  • Understand Linux security principles 
  • Secure user accounts and system access 
  • Monitor log files and system audits 
  • Configure SELinux and firewalls 
  • Implement intrusion detection systems 
  • Harden applications and authentication 
  • Encrypt data and manage file permissions 
  • Identify and address vulnerabilities 

What you’ll learn

You’ll explore a wide range of Linux security topics, applying each one in a practical live lab environment. By the end of the course, you’ll have a deeper understanding of how to secure Linux infrastructures and protect them against threats ranging from user-level risks to system-wide vulnerabilities. 

Linux user security

Gain practical skills to manage user accounts securely. You’ll learn how to set account defaults, apply password policies and track login activity. This knowledge enables you to restrict access, protect shell history, reduce insider threats, and improve account governance to safeguard business-critical systems. 

Logging and auditing

Discover how Linux manages system logging and auditing, and how to use these tools to monitor security events. You’ll learn to view, filter and interpret logs, configure the audit daemon, define tailored rules and generate reports. Strengthen compliance and detect risks through effective user and system monitoring. 

SELinux management

Explore how Linux manages logging and auditing to monitor security events. Learn to view, filter and interpret logs, configure the audit daemon, and create custom rules and reports. These skills help you detect risks, support incident response and meet compliance requirements more effectively. 

Firewall and network protection

Learn to improve network security with firewalld, zones and rich rules. Practise configuring ports, building rulesets and using firewall services. Explore SSH hardening, integrate tools like Fail2ban and securely configure time synchronisation to ensure consistent logging, authentication and protection across your systems. 

What’s included
  • Four days of immersive, instructor-led training 
  • Practical live labs 
  • Expert industry trainers 
  • Live virtual classroom option 
  • Comprehensive courseware 
  • Post-course support materials 
  • Real-world use cases 
  • Flexible public schedule 

Key facts

Ideal for

System Administrators with experience managing Linux who want to increase system security. 

Prerequisites

Experience in Linux administration is essential. Completion of Red Hat, SUSE or Oracle Linux system admin courses is recommended. 

Learning experience

Our experienced trainers and interactive labs create a focused, practical environment – so you can put theory into practice from day one. 

FAQs

This hands-on course equips experienced Linux administrators with tools and techniques to secure systems effectively. You’ll cover auditing, firewall management, SELinux, user access, intrusion detection, encryption, and more – all within a practical, lab-based training environment. 

Is this course suitable for beginners?

No, this course is intended for those with existing Linux administration experience. You should be confident using the command line, managing users, and configuring services. If you're new to Linux, we recommend starting with a foundational course to build your skills. Our experienced team can help you identify the best place to begin and support you throughout your learning journey. 

Do I need to use Red Hat Linux to benefit from this course?

No, the course is delivered using a Red Hat system, but the tools and techniques covered such as SELinux, auditing, firewall configuration and intrusion detection are relevant to a wide range of Linux distributions. We explain any differences to help you apply what you learn in your own environment. 

What delivery format is used?

This course is delivered live by an expert trainer and can be joined virtually or in person at one of our training centres. It combines structured teaching with hands-on labs, giving you practical experience through realistic security scenarios. The virtual classroom offers the same interaction and support as face-to-face training. 

Will I receive course materials?

Yes, you’ll receive high-quality digital course materials to support your learning during and after the course. This includes a course manual, practical lab exercises, step-by-step guides and a downloadable reference pack. Content is regularly updated to reflect current best practices and tools. 

Are practical labs included?

Absolutely. Practical learning is a core part of this course. Each topic is supported by interactive labs that simulate real-world scenarios. You’ll carry out tasks like configuring audit rules, managing SELinux policies and securing SSH, gaining experience you can apply straight away. 

Can the course be tailored for a team?

Yes. We offer customised training for teams that can be shaped around your organisation’s systems, challenges and objectives. Tailored sessions ensure the content aligns with your internal policies, security requirements and preferred pace of learning. 

Why study with StayAhead
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30+ years’ experience

Industry-leading specialists delivering high-impact IT training  

Experiential instructor-led training

Courses are delivered by experienced instructors using hands-on, practical live labs 

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