Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

Skills you'll gain: Ansible, Ubuntu, Linux Servers, WordPress, Linux Administration, Remote Access Systems, Linux, Content Management Systems, Linux Commands, Nginx, Servers, Web Servers, Software Installation, Systems Administration, Virtual Machines, Web Development, MySQL, PHP (Scripting Language)
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Linux Administration, Linux Servers, Virtualization and Virtual Machines, Infrastructure As A Service (IaaS), Security Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Web Servers, Lightweight Directory Access Protocols, Email Security, Linux, Nginx, Apache, Dynamic Host Configuration Protocol (DHCP), Operating System Administration, Server Administration, Active Directory, System Configuration, Proxy Servers, Network Security, Firewall, File Management, Identity and Access Management, Authentications
Advanced · Course · 1 - 3 Months

Skills you'll gain: Shell Script, Bash (Scripting Language), User Accounts, Linux Administration, Linux, Operating System Administration, File Systems, Performance Tuning, Systems Administration, Scripting, File Management, Scripting Languages, Unix Commands, Data Storage, Command-Line Interface, Operating Systems, System Monitoring, Dataflow
Intermediate · Course · 1 - 4 Weeks

The Linux Foundation
Skills you'll gain: Package and Software Management, Linux, Command-Line Interface, File Systems, Unix Commands, Linux Administration, Linux Commands, User Accounts, Operating System Administration, System Configuration, System Monitoring, Operating Systems, Network Monitoring, Graphical Tools
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Linux, Linux Commands, Linux Servers, Ubuntu, Linux Administration, File Management, Command-Line Interface, Unix Commands, Operating Systems, Web Servers, IT Automation, MySQL, Open Source Technology
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Linux Commands, Linux, Linux Servers, Command-Line Interface, Linux Administration, File Management, Unix Commands, File Systems
Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: System Programming, Embedded Systems, Linux, Linux Administration, Shell Script, Linux Commands, Bash (Scripting Language), Operating Systems, File Systems, OS Process Management, C and C++, Build Tools, Electrical Engineering, GitHub, Debugging, Git (Version Control System)
Advanced · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Responsible AI, Security Controls, Application Security, Cyber Attacks, Cyber Threat Intelligence, Cybersecurity, Data Security, DevSecOps, Security Engineering, Artificial Intelligence, Threat Modeling, Cyber Governance, Artificial Intelligence and Machine Learning (AI/ML), Risk Management, Encryption, Application Programming Interface (API), Machine Learning, Governance, Regulation and Legal Compliance, Applied Machine Learning
Beginner · Course · 1 - 3 Months

The Linux Foundation
Skills you'll gain: Package and Software Management, Open Source Technology, Git (Version Control System), Linux, Command-Line Interface, Bash (Scripting Language), File Systems, Unix Commands, GitHub, Linux Administration, Version Control, Linux Commands, User Accounts, CI/CD, Shell Script, Operating System Administration, System Configuration, Collaborative Software, Software Development Tools, Software Versioning
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Agile Methodology, Scrum (Software Development), System Programming, Embedded Software, Embedded Systems, Software Testing, Agile Software Development, Linux, Linux Administration, Shell Script, Docker (Software), Git (Version Control System), Linux Commands, Bash (Scripting Language), Operating Systems, C++ (Programming Language), File Systems, OS Process Management, Debugging, Internet Of Things
Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Package and Software Management, Linux Administration, Linux, Linux Commands, Virtual Private Networks (VPN), Linux Servers, System Monitoring, Operating System Administration, Public Key Infrastructure, Ubuntu, Version Control, File Management, Command-Line Interface, Intrusion Detection and Prevention, Git (Version Control System), File Systems, User Accounts, Firewall, Cloud Computing Architecture, DevOps
Beginner · Specialization · 3 - 6 Months