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 Commands, Network Administration, Unix Shell, Network Analysis
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Linux, Linux Administration, Linux Commands, File Management, Linux Servers, User Accounts, File Systems, Unix, OS Process Management, Unix Shell, Command-Line Interface, User Provisioning, General Networking, Shell Script, Operating Systems, File I/O, Network Support, Remote Access Systems, Scripting, Dataflow
★ 4.6 (10) · Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Virtual Networking, Virtualization, Dynamic Host Configuration Protocol (DHCP), Virtualization and Virtual Machines, Linux Administration, Linux Servers, Lightweight Directory Access Protocols, Network Administration, Virtual Machines, Linux, Network Architecture, Information Technology, Network Planning And Design, Virtual Environment, System Configuration, Linux Commands, Server Administration, Remote Access Systems, Software Installation
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Network Troubleshooting, Linux Administration, Linux Servers, Linux, Dynamic Host Configuration Protocol (DHCP), General Networking, Network Protocols, Network Infrastructure, TCP/IP, Network Administration, Ubuntu, Red Hat Enterprise Linux, Servers, System Configuration, Command-Line Interface, YAML
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Exploitation techniques, Network Security, Intrusion Detection and Prevention, Hardening, Local Area Networks, Threat Detection, General Networking, Linux, System Configuration, Software Installation, Virtual Machines, Network Analysis, Virtualization
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Exploit development, Exploitation techniques, Security Testing, Unix, Cyber Operations, Computer Security, Unix Commands, Unix Shell, System Programming, Shell Script, Linux, Debugging, Memory Management, Remote Access Systems, Authentications
Intermediate · Course · 1 - 3 Months

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Cyber Attacks, Vulnerability Assessments, Hardware Architecture, Information Systems Security, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, VPN Clients, Systems Architecture, Authentications
★ 4.8 (45) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Scanning, Network Security, Penetration Testing, Configuration Management, System Configuration, Firewall, Linux Commands, Servers, Command-Line Interface, TCP/IP, Network Analysis, Software Versioning
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Package and Software Management, Linux Administration, Command-Line Interface, Linux, Operating System Administration, Linux Commands, Systems Administration, User Accounts, Remote Access Systems, Network Security, grep, Network Administration, General Networking, File Management, System Configuration, Software Installation, File Systems, Data Storage
Mixed · Course · 1 - 3 Months

Skills you'll gain: File Systems, Linux, Linux Commands, File Management, Linux Administration, Operating Systems, Unix, Command-Line Interface
★ 4.7 (20) · Intermediate · Guided Project · Less Than 2 Hours