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, Linux Administration, Operating System Administration, File Systems, User Accounts, Linux Commands, User Provisioning, Data Storage, Systems Administration, File Management, Performance Tuning, Data Storage Technologies, Operating Systems, System Configuration, Security Controls
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux, Package and Software Management, Remote Access Systems, File Management, Linux Commands, Linux Servers, Operating System Administration, OS Process Management, Ubuntu, Systems Administration, System Monitoring, General Networking, Event Monitoring, Network Administration, System Configuration, Command-Line Interface, Network Troubleshooting, Software Installation, Service Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Shell Script, Bash (Scripting Language), User Accounts, Linux Administration, Linux, Unix Shell, Linux Commands, User Provisioning, Unix, Operating System Administration, File Systems, Performance Tuning, Systems Administration, File I/O, Scripting, File Management, Scripting Languages, Data Storage, Authorization (Computing), Command-Line Interface
★ 4.7 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Red Hat Enterprise Linux, Command-Line Interface, Linux Administration, Linux Commands, User Accounts, User Provisioning, Linux, Operating System Administration, Software Installation, System Configuration, Systems Administration, Security Controls, Control Panels, Shell Script, File Management, Package and Software Management, System Monitoring, Configuration Management, User Interface (UI)
★ 5 (14) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploit development, Exploitation techniques, Security Testing, Brute-force attacks, Vulnerability Assessments, Authentications, Wireless Networks, Network Security, Linux, Encryption, Microsoft Windows, Network Analysis, Data Persistence
Mixed · Course · 1 - 4 Weeks

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

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: Linux Commands, Command-Line Interface, Unix Commands, Linux, Linux Servers, Linux Administration, Unix, grep, File Systems, File Management
★ 4.6 (9) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Red Hat Enterprise Linux, Package and Software Management, Network Administration, Servers, Hardening, Cloud Deployment, Computing Platforms, Security Software, Application Servers, File Systems, Microsoft Azure
Beginner · Course · 1 - 3 Months

Skills you'll gain: Software Testing, Business Logic, Test Tools, Cryptography, Cybersecurity, Identity and Access Management, Authentications, Vulnerability Assessments, Encryption, Data Validation, Network Protocols
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: File Systems, Linux Administration, Data Storage Technologies, Linux, Data Loss Prevention, Linux Commands, File Management, Software Installation, Data Maintenance, Data Storage, Data Management, Systems Architecture, System Configuration, Data Integrity, Hardware Architecture, Command-Line Interface, System Monitoring
★ 4.9 (20) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtualization and Virtual Machines, Operating System Administration, IT Automation, Remote Access Systems, Hardening, System Support, Package and Software Management, Patch Management, Network Troubleshooting, Command-Line Interface, Encryption
Intermediate · Course · 1 - 3 Months