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: Vulnerability Scanning, Network Security, Configuration Management, System Configuration, Vulnerability Assessments, Firewall, Linux Commands, Servers, TCP/IP, Network Analysis, Software Versioning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, Linux Administration, Linux, User Accounts, Command-Line Interface, Operating System Administration, Open Source Technology, Disaster Recovery, Red Hat Enterprise Linux, System Monitoring, Unix Commands, System Configuration, Systems Administration, Linux Commands, Security Controls, Firewall, File Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Package and Software Management, Linux Administration, File Systems, Linux, User Accounts, Operating System Administration, Linux Commands, User Provisioning, Unix, Bash (Scripting Language), Systems Administration, File Management, TCP/IP, Unix Shell, Data Storage, Unix Commands, Software Installation, General Networking, Command-Line Interface, IBM Cloud
Advanced · Course · 1 - 3 Months

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

Skills you'll gain: Linux, Ubuntu, Shell Script, Linux Commands, Unix Shell, Unix Commands, Command-Line Interface, OS Process Management, File Management, Virtualization, Virtual Machines, Software Installation
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Package and Software Management, Linux Administration, Command-Line Interface, Unix Commands, Linux Servers, Linux, Operating System Administration, Authorization (Computing), Linux Commands, Systems Administration, User Accounts, Shell Script, Unix Shell, Remote Access Systems, Network Security, Network Administration, General Networking, File Management, System Configuration, Data Storage
Mixed · Course · 1 - 3 Months

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

Skills you'll gain: Linux, Linux Administration, Red Hat Enterprise Linux, File Systems, Scripting, Linux Servers, Shell Script, System Configuration, Linux Commands, Unix Shell, Unix Commands, Systems Administration, Web Servers, System Monitoring, Command-Line Interface, OS Process Management, Performance Tuning, Service Management, User Accounts
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Shell Script, User Accounts, Linux Administration, Linux, Unix Shell, Linux Commands, Unix, Operating System Administration, File Systems, Performance Tuning, Systems Administration, Scripting, File Management, Data Storage, Authorization (Computing), Command-Line Interface, Operating Systems, System Monitoring
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