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.

LearnQuest
Skills you'll gain: Threat Modeling, IT Security Architecture, Threat Detection, Internet Of Things, Network Security, Information Systems Security, Infrastructure Security, Security Controls, Data Security, Vulnerability Assessments, Risk Management Framework, Cryptography, Encryption, Cloud Computing
Intermediate · Course · 1 - 4 Weeks

Unilever
Skills you'll gain: Data Governance, Descriptive Analytics, Data Storytelling, Supply Chain, Supply Chain Management, Demand Planning, Presentations, Data Visualization, Supply Chain Systems, Supply Chain Planning, Transportation, Supply Chain, and Logistics, Process Improvement, Data Management, Data Lakes, Predictive Analytics, Forecasting, Data Analysis, Data Analysis Software, Real Time Data, Problem Solving
Beginner · Professional Certificate · 3 - 6 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, Cloud Infrastructure, Cloud Services, Big Data, Apache Spark, Cloud Computing, Cloud Storage, Cloud Platforms, Network Architecture, Data Storage Technologies, Computer Networking, File Systems, Apache Hadoop, Network Infrastructure, Cloud Applications, Infrastructure As A Service (IaaS), Middleware, Containerization, Software-Defined Networking, NoSQL
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Email Automation, Make.com, Google Gemini, Tool Calling, Calendar Management, Scheduling, Workflow Management, Data Ethics, JSON
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Information Privacy, Personally Identifiable Information, Data Ethics, Law, Regulation, and Compliance, Data Security, Journalism, Emerging Technologies, Media and Communications, Internet Of Things, Algorithms, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Competitive Analysis, Market Research, User Story, User Interface (UI), Product Roadmaps, Competitive Intelligence, AI Product Strategy, Usability, Persona Development, Product Development, Market Analysis, Product Management, Product Lifecycle Management, Customer Analysis, Market Intelligence, Design Thinking, User Interface (UI) Design, Quality Assurance and Control, Product Strategy, Data Analysis
Beginner · Professional Certificate · 3 - 6 Months

University of Colorado System
Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Communication Systems, Network Routing, Network Architecture, Network Planning And Design, General Networking, Computer Networking, System Programming, Data Integrity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Operating System Administration, TCP/IP, Systems Administration, Network Troubleshooting, IT Infrastructure, File Systems, OSI Models, Cybersecurity, Network Security, Network Protocols, Microsoft Windows, Operating Systems, Lightweight Directory Access Protocols, Data Security, Linux, Encryption, Technical Support, Computer Hardware, Computer Networking, Information Technology
Beginner · Professional Certificate · 3 - 6 Months

Packt
Skills you'll gain: Identity and Access Management, Application Security, Secure Coding, Security Testing, Information Systems Security, Cyber Security Assessment, Security Engineering, Security Controls, Risk Management Framework, Cybersecurity, Authentications, Threat Modeling, Network Security, Risk Management, Infrastructure Security, Data Security, Continuous Monitoring, Software Development Life Cycle, Authorization (Computing), Cryptography
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Google Gemini, Google Workspace, Generative AI, Google Cloud Platform, Enterprise Security, LLM Application, Responsible AI, Workflow Management, Prompt Engineering
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: ASP.NET, .NET Framework, Identity and Access Management, Full-Stack Web Development, Web Applications, Microsoft Azure, Web Development, Application Deployment, Database Application, Authorization (Computing), Authentications, Databases, Database Design, Software Architecture, Payment Systems, Software Design Patterns, Data Modeling, User Interface (UI), Transaction Processing
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Stakeholder Engagement, Communication Planning, Stakeholder Communications, Project Coordination, Requirements Analysis, Project Management Software, Business Analysis, Waterfall Methodology, Program Management, Kanban Principles, Communication, Risk Management, Product Lifecycle Management, Prioritization
Beginner · Course · 1 - 4 Weeks