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.

Macquarie University
Skills you'll gain: Incident Response, Computer Security Incident Management, Cyber Security Strategy, Cyber Attacks, Security Management, Cyber Security Policies, Cyber Threat Intelligence, Intrusion Detection and Prevention, Threat Detection, Disaster Recovery, Cybersecurity, Cyber Risk, Cyber Security Assessment, Crisis Management, Threat Management, Business Continuity, Safety and Security, Security Software, Strategic Communication, Regulation and Legal Compliance
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Management, Cloud Security, Vulnerability Assessments, Vulnerability Management, Security Management, Security Controls, Google Cloud Platform, Configuration Management
Beginner · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Import/Export, Google Cloud Platform, Data Pipelines, Security Information and Event Management (SIEM), Data Sharing, Cloud Security
Intermediate · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: AI Security, Application Security, Secure Coding, Data Ethics, Vulnerability Assessments, Responsible AI, Security Testing, Threat Modeling, Data Security, Security Controls, Cyber Security Assessment, Cybersecurity, Security Awareness, Threat Management, Continuous Monitoring, Authorization (Computing), Encryption, Penetration Testing, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Authentications
Advanced · Course · 1 - 4 Weeks

Macquarie University
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Copilot, Microsoft Power Automate/Flow, Microsoft Power Platform, Microsoft 365, AI Enablement, Threat Detection, Compliance Management, AI Security, Workflow Management, Automation, Incident Response
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Containerization, Microservices, Authentications, OAuth, Application Deployment, Integration Testing, Event-Driven Programming, Data Migration, Application Programming Interface (API), Software Architecture, Software Design Patterns, Scalability, Systems Integration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Knowledge of Apple Software, Apple Service Certification, Application Lifecycle Management, Endpoint Security, Knowledge of Apple Hardware, Mobile Development Tools, Test Planning
Advanced · Course · 1 - 3 Months

Skills you'll gain: Security Testing, Continuous Monitoring, Cyber Security Assessment, Penetration Testing, Vulnerability Assessments, Intrusion Detection and Prevention, Vulnerability Scanning, Security Controls, White-Box Testing, Threat Detection, Threat Modeling
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls
Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Vulnerability Assessments, Network Security, Security Engineering, Telecommunications, Infrastructure Security, Cyber Security Assessment, Threat Detection, Network Analysis, Continuous Monitoring, Security Strategy, Internet Of Things, Emerging Technologies, General Networking, Network Architecture, Enterprise Architecture, Infrastructure Architecture, Virtualization
Intermediate · Course · 1 - 4 Weeks