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: Bash (Scripting Language), General Networking, Linux Commands, Operating System Administration, Scripting, Unix, Scripting Languages, Network Infrastructure, Security Controls, Application Security, Servers
Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Firewall, Linux Administration, Authorization (Computing), Linux Servers, Security Controls, Linux, Hardening, Authentications, Network Security, Linux Commands, System Configuration, Servers, Server Administration, Encryption, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Command-Line Interface, Linux, Ubuntu, Linux Administration, Linux Commands, Operating System Administration, Bash (Scripting Language), Software Installation, System Configuration, Network Troubleshooting, User Accounts, Networking Hardware, Network Support, Open Source Technology, File Management, Package and Software Management, Scripting
Beginner · Course · 1 - 3 Months

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, Package and Software Management, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ubuntu, Operating System Administration, Linux Commands, General Networking, TCP/IP, Security Controls, File Systems, Service Management, Package and Software Management, File Management, SQL, User Accounts
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Package and Software Management, Linux, User Accounts, Operating System Administration, System Monitoring, Linux Servers, Linux Commands, User Provisioning, Amazon Web Services, Network Troubleshooting, File Management, Command-Line Interface, File Systems, Amazon Elastic Compute Cloud, Systems Administration, Operating Systems, General Networking, Identity and Access Management, IT Automation
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Command-Line Interface, Linux Commands, Linux, File Management, Linux Administration, File Systems, File I/O
★ 4.7 (80) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Linux Administration, Linux Servers, Web Servers, Lightweight Directory Access Protocols, Email Security, Linux, Nginx, Apache, Dynamic Host Configuration Protocol (DHCP), Linux Commands, Servers, Operating System Administration, Hardening, Server Administration, Active Directory, Windows Servers, File Systems, System Configuration, Microsoft Servers, Network Security
Advanced · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Linux, Linux Commands, Operating System Administration, TCP/IP, Authorization (Computing), System Configuration, Hardening, Network Monitoring, Network Routing, Network Troubleshooting, Network Administration, Network Analysis, Network Protocols, File Systems, User Accounts, Service Management, OS Process Management, File Management, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Cybersecurity, Security Testing, Vulnerability Assessments, Network Analysis, Exploitation techniques, Linux, System Configuration, Linux Administration, Virtual Machines, Linux Commands, Operating Systems, Software Installation, Workflow Management
★ 4.8 (32) · Mixed · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Linux Administration, Red Hat Enterprise Linux, Package and Software Management, Operating System Administration, Linux, Linux Servers, User Accounts, Systems Administration, Unix, User Provisioning, File Systems, Linux Commands, Identity and Access Management, Unix Commands, Operating Systems, Unix Shell, Command-Line Interface, Authorization (Computing), IT Infrastructure, System Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Vulnerability Assessments, Cyber Security Assessment, Exploitation techniques, Security Testing, Mobile Security, Test Script Development, Scripting, Android (Operating System), Application Security, Human Factors (Security), Scripting Languages, Network Analysis, Automation, Analysis, Virtual Environment
★ 4.8 (14) · Mixed · Course · 1 - 4 Weeks