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.

University of Colorado System
Skills you'll gain: Penetration Testing, Application Security, Vulnerability Scanning, Secure Coding, Exploitation techniques, Software Design Patterns, Vulnerability Assessments, Amazon Web Services, SQL, Amazon Elastic Compute Cloud, Operating Systems, C (Programming Language)
Intermediate · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Package and Software Management, Command-Line Interface, Linux Commands, Linux, Linux Administration, Unix Commands, Data Storage, Operating Systems, Remote Access Systems, Operating System Administration, TCP/IP, File Management, Service Management, General Networking, DevOps, Network Security, User Accounts
Beginner · Course · 1 - 3 Months

Pearson
Skills you'll gain: Git (Version Control System), Containerization, Bash (Scripting Language), Version Control, Linux Administration, Linux Servers, Linux, Docker (Software), Shell Script, Ansible, Unix Shell, Kubernetes, Configuration Management, Application Deployment, Servers, Systems Administration, Software Configuration Management, System Configuration, Data Storage Technologies
Intermediate · Course · 1 - 4 Weeks

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, File Systems, General Networking, Network Administration, System Configuration, Command-Line Interface, Software Installation, Service Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Red Hat Enterprise Linux, Linux, Operating System Administration, Linux Commands, Virtualization, Systems Administration, Virtualization and Virtual Machines, Virtual Machines, Cloud Computing, System Monitoring, Software Installation, System Configuration
Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Package and Software Management, Linux Administration, Linux, Linux Commands, Operating System Administration, OS Process Management, Systems Administration, Remote Access Systems, System Configuration, Network Administration, General Networking, Software Installation, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Linux Administration, Linux, Operating System Administration, TCP/IP, Authorization (Computing), System Configuration, Hardening, Network Routing, Network Troubleshooting, Network Administration, Network Analysis, Network Protocols, File Systems, User Accounts, Service Management, OS Process Management
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Usability, Human Computer Interaction, Authentications, Security Engineering, Usability Testing, Interaction Design, Threat Modeling, Human Factors, Information Privacy, Cybersecurity, Personally Identifiable Information, User Interface (UI) Design, User Acceptance Testing (UAT), Multi-Factor Authentication, User Centered Design, Design
Mixed · Course · 1 - 3 Months

Pearson
Skills you'll gain: Linux Administration, Operating System Administration, Linux Servers, Systems Administration, System Monitoring, Linux, Performance Tuning, File Management, Data Storage Technologies, Network Troubleshooting, Remote Access Systems, User Interface (UI), User Accounts, File Systems
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Ubuntu, Linux, Bash (Scripting Language), Linux Commands, Command-Line Interface, Unix Commands, Operating System Administration, File Management, Red Hat Enterprise Linux, Software Installation, System Configuration
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Exploitation techniques, Unix, Computer Security, Vulnerability Assessments, Unix Commands, System Programming, Shell Script, Linux, Debugging, Computer Architecture
Build toward a degree
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: File Systems, Linux Administration, Linux, Linux Commands, Operating System Administration, Software Installation, Data Storage, Data Management, Unix Commands, System Configuration, Software Architecture, Data Integrity, Data Migration, Hardware Architecture, System Monitoring
Intermediate · Course · 1 - 4 Weeks