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.

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Virtual Local Area Network (VLAN), Network Protocols, Network Security, Network Routing, Network Troubleshooting, Network Administration, Computer Networking, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Border Gateway Protocol, Network Performance Management, Firewall, Proxy Servers, Encryption, Authentications
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Medical Privacy, Health Informatics, Health Information Management, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Digital Transformation, Health Care, Clinical Informatics, Emerging Technologies, Information Privacy, Data Management, Technology Strategies, Cybersecurity, Data Security, Platform As A Service (PaaS), Security Strategy, Innovation, Data Integration
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Lending and Underwriting, Blockchain, Commercial Lending, Derivatives, FinTech, Market Liquidity, Financial Trading, Securities (Finance), Digital Assets, Market Data, Transaction Processing, Asset Management, Portfolio Management, Risk Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Requirements Elicitation, Requirements Analysis, Stakeholder Engagement, Requirements Management, Business Analysis, Performance Improvement, Business Requirements, Case Studies, Stakeholder Analysis, Governance, Business Process Modeling, Strategic Planning, Problem Solving, Prioritization
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Data Ethics, Responsible AI, Emerging Technologies, Business Ethics, Big Data, Information Privacy, Personally Identifiable Information, Diversity Awareness, Data Security, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Intercultural Competence, Healthcare Ethics, Cultural Diversity, Public Health and Disease Prevention, Stress Management, Safety Training, Preventative Care, Injury Prevention, Occupational Health, Public Health, Safety and Security, Ethical Standards And Conduct, Adaptability, Infectious Diseases, Emergency Response, Mental Health, Planning
Beginner · Course · 1 - 4 Weeks

University of Manchester
Skills you'll gain: Health Equity, Health Disparities, Public Health, Healthcare Ethics, Emergency Response, Emergency Services, Safety and Security, International Relations, Infectious Diseases, Policy Analysis, Chronic Diseases, Advocacy, Law, Regulation, and Compliance, Vulnerability, Case Studies
Beginner · Course · 1 - 3 Months

Skills you'll gain: Virtual Machines, Virtual Private Networks (VPN), Cloud Security, Public Cloud, Amazon Web Services, Scalability, Private Cloud, Cloud Computing Architecture, Amazon Elastic Compute Cloud, Cloud Computing, Cloud Infrastructure, Infrastructure As A Service (IaaS)
Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Microsoft Azure, NoSQL, Database Administration, Data Store, Database Systems, Cloud Storage, Database Theory, Data Storage, Cloud Services, Data Storage Technologies, Data Security, Data Management, Query Languages, Application Programming Interface (API)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Requirements Management, Robotic Process Automation, Requirements Elicitation, Business Process Automation, Requirements Analysis, User Requirements Documents, Business Requirements, Stakeholder Engagement, Business Analysis, Automation, Business Process, Process Analysis, Stakeholder Communications, Project Scoping, Process Mapping, Business Strategy
Beginner · Course · 1 - 3 Months
Google Cloud
Skills you'll gain: Istio, Kubernetes, CI/CD, Serverless Computing, Multi-Cloud, Hybrid Cloud Computing, Application Deployment, Google Cloud Platform, Cloud-Native Computing, Cloud Infrastructure, Containerization, Network Security, Continuous Deployment, Cloud Management, Cloud Applications, Microservices, Continuous Integration, Cloud Computing Architecture, Identity and Access Management, Microsoft Azure
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Systems Engineering, Failure Analysis, Model Based Systems Engineering, Engineering Management, Requirements Management, Scope Management, Design Reviews, Project Scoping, Root Cause Analysis, Test Engineering, Program Management, Systems Thinking, User Requirements Documents, Cost Management, Contract Management, Systems Design, Product Lifecycle Management, Business Requirements, Risk Management, Requirements Analysis
Build toward a degree
Beginner · Specialization · 3 - 6 Months