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: Linux Administration, Linux, User Accounts, Identity and Access Management, Authentications, Virtual Machines, Operating System Administration, Security Controls, System Configuration, Virtual Environment, Command-Line Interface
Beginner · 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

Coursera
Skills you'll gain: Linux Commands, Linux, Unix Commands, Command-Line Interface, File Management, System Configuration, Linux Administration, Package and Software Management, DevOps
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Vulnerability Assessments, Vulnerability Scanning, Open Web Application Security Project (OWASP), Exploitation techniques, Unix, Network Security, Cybersecurity, Information Systems Security, Network Analysis, Web Applications, Command-Line Interface, Virtual Machines, Web Servers
Beginner · 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: Linux Commands, Command-Line Interface, Linux, Linux Servers, Unix, File Systems, File Management
Beginner · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Hardening, Remote Access Systems, Linux Servers, Linux Administration, Linux, Linux Commands, Authentications, Security Controls, Cryptographic Protocols, Key Management, Public Key Infrastructure, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Shell Script, Package and Software Management, Linux Administration, Linux Commands, Unix Shell, Systems Administration, Hardening, Unix Commands, Patch Management, Scripting, System Monitoring, User Accounts, Dynamic Host Configuration Protocol (DHCP), System Configuration, OS Process Management, Firewall, Process Management
Advanced · Course · 1 - 4 Weeks

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

Skills you'll gain: Linux Commands, Linux Administration, Network Troubleshooting, Linux, Network Administration, File Transfer Protocol (FTP), TCP/IP, Network Infrastructure, Network Protocols, Command-Line Interface, System Configuration, Virtualization, General Networking, Network Security, Software Installation
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Version Control, Git (Version Control System), Linux, Cloud Computing Architecture, DevOps, Virtualization, Cloud Computing, Linux Administration, Cloud Infrastructure, Containerization, Cloud Platforms, Infrastructure As A Service (IaaS), Software As A Service, Virtual Machines, Platform As A Service (PaaS)
Beginner · 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, Development Environment, File Management, Virtual Environment, Open Source Technology
Beginner · Course · 1 - 4 Weeks