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: 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: Secure Coding, Agile Methodology, Security Management, Cyber Security Policies, Cyber Security Assessment, Technical Management, Performance Metric, Risk Management
Intermediate · 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

Duke University
Skills you'll gain: MLOps (Machine Learning Operations), Application Deployment, Containerization, CI/CD, Docker (Software), Microsoft Azure, Cloud Computing, Cloud Applications, Machine Learning Software, GitHub, Application Programming Interface (API)
Advanced · Course · 1 - 4 Weeks

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
Georgia Institute of Technology
Skills you'll gain: Software-Defined Networking, Virtualization, Virtual Machines, Network Architecture, Network Infrastructure, Cloud Computing, Network Performance Management, Linux, Network Security, Performance Tuning, Scalability
Mixed · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Routing Protocols, Network Routing, TCP/IP, Network Protocols, Network Architecture, Network Performance Management, Computer Networking, OSI Models, Local Area Networks, Algorithms
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Data Security, Cloud Security, Azure Active Directory, Microsoft Azure, Data Storage, Microsoft SQL Servers, Data Encryption Standard, Authorization (Computing), Authentications, Database Management, Data Governance, Key Management, Role-Based Access Control (RBAC), Threat Modeling, Identity and Access Management, Firewall
Intermediate · Course · 1 - 3 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