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: Frontend Integration, Web Components, JavaScript Frameworks, Microarchitecture, Web Development Tools, Front-End Web Development, CI/CD, Web Design, Secure Coding, Software Design, Scalability, Server Side, Maintainability, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Application Deployment, Cloud Deployment, Cloud-Native Computing, Scalability, Containerization, Continuous Deployment, Docker (Software), Cloud Applications, Cloud Management, API Gateway, Devops Tools, Cloud Storage, Network Troubleshooting, Authentications, DevOps, Google Cloud Platform, Test Case, Network Protocols, Application Programming Interface (API)
Intermediate · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Hosting, Blockchain, Virtual Machines, Software Installation, Google Cloud Platform, Key Management, User Accounts, Development Environment, Network Security
Beginner · Project · Less Than 2 Hours

University of Leeds
Skills you'll gain: Professional Networking, Social Media, Social Media Strategy, LinkedIn, Facebook, Professionalism, digital literacy, Brand Awareness, Content Creation, Relationship Building, Instagram, Information Privacy, Communication Strategies
Beginner · Course · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: Vector Databases, Responsible AI, Data Strategy, Data Ethics, Data Management, Data Architecture, Data Security, Generative AI, AI Security, Generative AI Agents, Data Governance, Retrieval-Augmented Generation, Interoperability, Data Store, AI Workflows, Enterprise Architecture, AI Enablement, Metadata Management, Data Pipelines, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Specialization · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Derivatives, Portfolio Management, Capital Markets, Financial Systems, Financial Market, Credit Risk, Risk Management, Investments, Equities, Financial Regulation, Market Liquidity, Financial Policy, Risk Analysis, Financial Analysis, Securities Trading, Financial Services, Financial Trading, Market Data, Financial Management, Wealth Management
Beginner · Specialization · 3 - 6 Months

Starweaver
Skills you'll gain: Responsible AI, AI Security, LLM Application, Threat Detection, Threat Modeling, Cyber Threat Intelligence, Cyber Threat Hunting, Generative AI Agents, Agentic Workflows, Agentic systems, Incident Response, Cyber Governance, Cyber Security Strategy, Data Ethics, Cyber Operations, AI Orchestration, Cybersecurity, Cyber Security Assessment, Risk Mitigation, Technology Strategies
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft 365, Data Integration, Report Writing, IT Automation
Intermediate · Course · 3 - 6 Months

University of California San Diego
Skills you'll gain: Big Data, Cybersecurity, Pedagogy, Data Security, Cryptography, Information Privacy, Encryption, Responsible AI, AI Personalization, Computer Science, Information Technology, Web Applications, Web Servers, Machine Learning, Supervised Learning
Beginner · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Threat Modeling, Cyber Threat Intelligence, Vulnerability Management, Cybersecurity, Threat Detection, Vulnerability Assessments, Intrusion Detection and Prevention, Network Security, Cyber Attacks, Cyber Operations, Patch Management, Continuous Monitoring, Configuration Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Active Directory, Windows Servers, Firewall, Google Cloud Platform, Virtual Networking, Virtual Machines, Servers, System Testing, Network Security, SQL
Advanced · Project · Less Than 2 Hours

Skills you'll gain: Unix, Unix Commands, Network Protocols, Network Troubleshooting, TCP/IP, OS Process Management, File Management, General Networking, File Transfer Protocol (FTP), Network Administration, Linux, Operating Systems, Network Security
Intermediate · Course · 1 - 4 Weeks