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: File Systems, Linux, Linux Commands, File Management, Linux Administration, Operating Systems, Unix, Command-Line Interface
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Red Hat Enterprise Linux, Command-Line Interface, Linux Administration, User Accounts, Linux, Operating System Administration, Software Installation, System Configuration, Systems Administration, Security Controls, File Management, System Monitoring, User Interface (UI)
Mixed · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Linux, Package and Software Management, Remote Access Systems, File Management, Linux Commands, Operating System Administration, OS Process Management, Systems Administration, System Monitoring, Unix Commands, File Systems, General Networking, Network Administration, System Configuration, Command-Line Interface, Software Installation, Service Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Network Security, Linux, Linux Administration, Security Controls, Hardening, Ubuntu, File Management, Authorization (Computing), File Systems, System Configuration, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Systems, Linux Administration, Data Storage, Linux, Operating Systems, Linux Commands, Data Management, Systems Administration, Data Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Machines, Virtualization, Containerization, Virtual Networking, Docker (Software), Linux, Cloud Deployment, Infrastructure as Code (IaC)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Servers, Linux Administration, Linux Commands, Linux, Unix Commands, Command-Line Interface, OS Process Management, Operating System Administration, Debugging, System Monitoring, DevOps, Resource Management
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Linux Commands, Network Administration, Network Analysis
Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Secure Coding, Application Security, Verification And Validation, Code Review, Linux, Vulnerability Assessments, User Accounts, Data Validation, Debugging, Cryptography, C (Programming Language), File Management, OS Process Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Malware Protection, Cyber Threat Intelligence, Exploitation techniques, Cybersecurity, Intrusion Detection and Prevention, Vulnerability Assessments, Human Factors (Security), Network Analysis, Command-Line Interface
Mixed · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Package and Software Management, Command-Line Interface, Ubuntu, Linux, Linux Administration, Linux Commands, Red Hat Enterprise Linux, Unix Commands, File Systems, Software Installation, Operating System Administration, File Management, Virtual Environment, Open Source Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Exploitation techniques, Brute-force attacks, Cyber Security Assessment, Vulnerability Assessments, Authentications, Wireless Networks, Network Security, Linux, Encryption, Microsoft Windows, Cryptography, Operating Systems
Mixed · Course · 1 - 4 Weeks