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.

John Wiley & Sons
Skills you'll gain: Security Management, Risk Management, Risk Management Framework, Compliance Management, Enterprise Risk Management (ERM), Risk Control, Risk Mitigation, Security Strategy, Cyber Governance, Risk Analysis, Governance, Cybersecurity, Regulatory Compliance, Security Controls, Law, Regulation, and Compliance, Regulation and Legal Compliance, Management Reporting, Cyber Security Policies, Cyber Security Strategy, Incident Response
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Windows Servers, Authorization (Computing), Microsoft Windows, Authentications, Operating System Administration, User Accounts, Group Policy, User Provisioning, Microsoft Servers, Security Controls, Enterprise Security, Active Directory, Lightweight Directory Access Protocols, Identity and Access Management, Software Installation, Servers, Role-Based Access Control (RBAC), Endpoint Security, Server Administration, System Configuration
★ 4.7 (680) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Continuous Monitoring, Security Management, Event Monitoring, Security Strategy, Risk Management Framework, Cyber Risk, Threat Management, Cyber Security Strategy, System Monitoring, Cloud Security, Computer Security Incident Management, Security Controls, Cyber Threat Intelligence, Incident Response, Risk Analysis, Cloud Standards, Scalability, Interoperability
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Rust (Programming Language), Serverless Computing, Command-Line Interface, Maintainability, Amazon Web Services, Linux Commands, Application Deployment, System Programming, Python Programming, Package and Software Management, Performance Tuning, Software Testing
★ 5 (16) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Security Software, Software Installation, Virtual Machines
★ 4.8 (13) · Beginner · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: LLM Application, Large Language Modeling, Open Web Application Security Project (OWASP), AI Security, Cyber Security Assessment, Application Security, Threat Modeling, Security Testing, Secure Coding, Vulnerability Assessments, Software Architecture, Prompt Engineering, IT Security Architecture, Security Controls, Application Programming Interface (API), Data Validation
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Salesforce, Authentications, Salesforce Development, Data Access, Role-Based Access Control (RBAC), Enterprise Security, Identity and Access Management, Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Data Sharing, Responsive Web Design, User Accounts, Customer Relationship Management (CRM) Software, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: System Support, Systems Administration, Data Maintenance, System Monitoring, Desktop Support, System Configuration, Package and Software Management, Patch Management, System Requirements, Open Source Technology, General Networking, Computer Security Awareness Training
Beginner · Course · 1 - 3 Months

Skills you'll gain: Secure Coding, Threat Detection, Penetration Testing, Cloud Security, Exploitation techniques, Cyber Security Assessment, Vulnerability Scanning, Security Testing, Application Security, Incident Response, Cybersecurity, Vulnerability Assessments, Python Programming, Web Scraping, Encryption, Automation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Azure Active Directory, Cloud Security, Cyber Attacks, Security Controls, Multi-Factor Authentication, Data Security, Endpoint Detection and Response, Cloud Management, Identity and Access Management, Threat Management, Cloud Computing Architecture, Infrastructure Security, Software As A Service, Threat Detection, Hybrid Cloud Computing, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ubuntu, Package and Software Management, Bash (Scripting Language), Linux Servers, Linux Administration, Unix, Linux, Shell Script, Unix Shell, Server Administration, Operating System Administration, Scripting, Linux Commands, Systems Administration, User Accounts, Servers, System Monitoring, User Provisioning, Command-Line Interface, Hardening
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: C# (Programming Language), Microsoft Visual Studio, .NET Framework, Game Design, Open Source Technology, Programming Principles, Integrated Development Environments, Microsoft Development Tools, Linux, Application Development, Cross Platform Development, Program Development
Beginner · Guided Project · Less Than 2 Hours