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.

Board Infinity
Skills you'll gain: Vulnerability Assessments, Network Monitoring, Penetration Testing, Virtual Private Networks (VPN), Command-Line Interface, Linux Commands, Cybersecurity, Linux, Software Installation, Network Security
★ 4.3 (240) · Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Linux Administration, Version Control, Linux, Git (Version Control System), Linux Commands, Network Troubleshooting, Operating System Administration, Bash (Scripting Language), Systems Administration, Scripting, Shell Script, User Accounts, System Configuration, Network Administration, File Management, Identity and Access Management, General Networking, Firewall, Security Controls, Containerization
★ 4.4 (24) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Ansible, Linux Administration, Kubernetes, Oracle Cloud, Hardening, Oracle Cloud Applications, Linux, Cloud Security, Containerization, Data Security, Linux Servers, Docker (Software), Security Controls, Package and Software Management, IT Automation, System Configuration, Oracle Databases, Virtual Machines, Hybrid Cloud Computing, Firewall
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Bash (Scripting Language), Network Monitoring, Cyber Security Assessment, System Configuration, Digital Forensics
★ 4.6 (71) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: General Networking, Operating System Administration, Scripting, Security Controls, Servers
Intermediate · Course · 1 - 3 Months

Skills you'll gain: grep, Bash (Scripting Language), Shell Script, Linux Commands, Command-Line Interface, Linux, Scripting, Cybersecurity, Virtualization, Virtualization and Virtual Machines, File I/O, Security Testing, Virtual Machines, IT Automation, Linux Administration, Automation, Ethical Standards And Conduct, Network Analysis
Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Shell Script, Linux Administration, Linux, Systems Administration, Operating System Administration, Linux Servers, Web Servers, Apache, Bash (Scripting Language), Nginx, Vulnerability Assessments, Virtualization and Virtual Machines, File Systems, File Management, Virtualization, Command-Line Interface, Network Troubleshooting, Linux Commands, System Monitoring, Servers
Beginner · Specialization · 3 - 6 Months

Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Cloud Computing, Linux, Linux Commands, Linux Administration, Operating Systems, Microsoft Windows, File Systems, Systems Administration, Mac OS, Command-Line Interface, Firewall, Virtualization, File Management, Containerization, User Accounts, Docker (Software)
★ 4.6 (5.7K) · Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Package and Software Management, Linux Administration, Shell Script, Ubuntu, User Accounts, Linux, grep, Linux Commands, Red Hat Enterprise Linux, Performance Tuning, Bash (Scripting Language), Network Administration, Kubernetes, Command-Line Interface, Network Troubleshooting, Containerization, Ansible, File Systems, Application Deployment, Authentications
★ 4.6 (33) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Linux Administration, Bash (Scripting Language), Linux Commands, Linux, Package and Software Management, Remote Access Systems, Shell Script, File Transfer Protocol (FTP), File Systems, Network Troubleshooting, Scripting, Operating System Administration, Command-Line Interface, Scripting Languages, Network Protocols, Data Storage, File Management, Software Installation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Ansible, Linux Administration, Kubernetes, Package and Software Management, Cloud Infrastructure, Linux, Shell Script, Cloud Computing Architecture, Docker (Software), Linux Commands, Public Cloud, Linux Servers, Firewall, Containerization, Systems Administration, Operating System Administration, Infrastructure Security, Network Troubleshooting, General Networking, System Support
Beginner · Specialization · 3 - 6 Months