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.

Duke University
Skills you'll gain: Loans, Lending and Underwriting, FinTech, Key Management, Cryptography, Cryptographic Protocols, Digital Assets, Market Liquidity, Financial Trading, Transaction Processing, Public Key Infrastructure, Supply Management
★ 4.9 (479) · Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Gemini, Prompt Engineering, Retrieval-Augmented Generation, Gemini, Google Workspace, Generative AI, Google Cloud Platform, AI Workflows, Large Language Modeling, Enterprise Security
★ 4.7 (105) · Beginner · Course · 1 - 4 Weeks

Tableau Learning Partner
Skills you'll gain: Requirements Elicitation, Business Analysis, Business Analysis Tools, Business Metrics, Stakeholder Analysis, Key Performance Indicators (KPIs), Requirements Analysis, Business Requirements, Stakeholder Management, User Requirements Documents, Business Process, Business Process Modeling, Process Flow Diagrams, Data Visualization, Stakeholder Engagement, Process Modeling, Diagram Design, Requirements Management, Solution Delivery
★ 4.7 (141) · Beginner · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: International Relations, International Finance, World History, Diplomacy, Political Sciences, Economics, Economic Development, Strategic Partnership, Policy Analysis, Security Strategy, Governance, Science and Research
★ 4.7 (139) · Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Responsible AI, Generative AI, Generative Model Architectures, AI Security, Google Cloud Platform, Unstructured Data, Data Literacy, Data Ethics, Large Language Modeling, Machine Learning, Innovation
★ 4.8 (188) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Hardware Design, Electronic Hardware, Schematic Diagrams, Electronics, Computer-Aided Design, Electronic Systems, Electronics Engineering, Mechanical Design, Drafting and Engineering Design, Communication Systems, Remote Access Systems, 3D Modeling, Linux, Digital Communications, Electrical Engineering, Web Applications, Security Controls, Systems Of Measurement, Digital Signal Processing, Data Processing
★ 4.8 (103) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Virtual Machines, Virtualization and Virtual Machines, Cloud Development, Cloud Hosting, Infrastructure As A Service (IaaS), Cloud Deployment, Application Deployment, Linux, Cloud Management, Linux Servers, Full-Stack Web Development, Web Applications, Node.JS, MongoDB
★ 4.6 (32) · Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, File Systems, Cloud Computing, Cloud Computing Architecture, Security Controls, Operating Systems, Transaction Processing, Information Systems Security, Data Centers, Cyber Security Policies, Authorization (Computing), Apache Hadoop, Data Store, Database Theory, Cloud Security, Authentications, Cryptography, NoSQL, Algorithms, Graph Theory
★ 4.5 (321) · Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: C# (Programming Language), Restful API, ASP.NET, Model View Controller, .NET Framework, Docker (Software), Azure DevOps, Object Oriented Programming (OOP), Azure DevOps Pipelines, Microservices, Containerization, JSON, Application Programming Interface (API), API Design, DevOps, Web Services, Middleware, CI/CD, Object Oriented Design, Application Frameworks
★ 4.1 (386) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Responsible AI, Containerization, Prompt Engineering, AI Orchestration, Scalability, Docker (Software), AI Workflows, Kubernetes, Agentic Workflows, Azure Active Directory, Prompt Patterns, Generative AI Agents, LangChain, Microservices, Microsoft Azure, Artificial Intelligence, Distributed Computing, Serverless Computing, Natural Language Processing, Reinforcement Learning
★ 3.4 (21) · Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: Vulnerability Scanning, Information Technology Architecture, Business Continuity Planning, Cyber Security Assessment, Computer Security Awareness Training, Cyber Risk, Compliance Management, Internal Controls, Governance, Continuous Monitoring, Data Management, Computer Security, Key Performance Indicators (KPIs), Regulatory Requirements, Business Analysis, Organizational Structure, Human Factors (Security), Accountability, Stakeholder Communications, Artificial Intelligence
★ 4.9 (52) · Intermediate · Specialization · 3 - 6 Months

University of Cape Town
Skills you'll gain: Climate Change Adaptation, Water Resources, Water Sustainability, Sustainable Development, Environmental Policy, Water Resource Management, Environmental Science, Environment, Natural Resource Management, Socioeconomics, Vulnerability, Governance
★ 4.8 (125) · Beginner · Course · 1 - 3 Months